5047 - The Wheel Horse Tractor Manual and Documentation Website

Transcription

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MECHANICAL
TRANSMISSION
REPAIR MANUAL
WHEELHORSE
lawn & garden tractors
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Price $3.50
FOREWORD
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This service and repair manual has been compiled to provide
authorized Wheel Horse service personnel with the proper procedures
and techniques for servicing Wheel Horse mechanical transmissions.
The following index lists all areas covered. It is advisable to read
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all of the introductory sections first to gain a proper understanding of
the Wheel Horse mechanical transmission used in each model.
The transmission is a sophisticated piece of machinery. Maintain
strict cleanliness control during all stages of service and repair. Even
a small amount of dirt or other contamination can severely damage
the components.
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Product information and specifications are shown herein as of the
time of printing. Wheel Horse Products. Inc. reserves the right to
change product specifications. designs and standard equipment without
notice and without incurring obligation.
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CONTENTS
Page
TRANSMISSION USAGE C+tART
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Page
SECTION III
5060 6-SPEED TRANSMISSION
27
Description . . . . . . . . . . . . . . . . . . . . . . . .
27
Removal . . . . . . . . . . . . . . . . . . . . . . . . . .
27
Insta l lation . . . . . . . . . . . . . . . . . . . . . . .
Disassembly . . . . . . .
. . . .. .. . . 2 8-29
. .. . . . . .
Cl uster Gear .. . . . .
29
Cleaning, I nspection, Bearing and
Oil Seal Replacement . . . . . . . . . . . . . .
29
Assembly . .
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SECTION I
5003
•
5010 TRANSMISSIONS
5-1 4
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Removal . . . . . . . . . . . . . . . . . . . . . . . . .
Insta l lation . . . . ... . . . . . . .. . . . . .
Disassembly . . . . .. . . . .
. . ...
Cleaning, Inspection, Bearing and
Assembly . . . . . . . .. . . . . . . . .
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DIFFERENTIAL OVERHAUL
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5
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6-8
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5003 AND 501 0 SERVICE NOTES . .. . . . . . .
12
EXPLODED VIEW . . . . . . . . . . . . . . . . . . . . . .
13
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SECTION II
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5058 3·SPEED UNIDRIVE
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35
PARTS LIST
36
3 7-44
Description . . . . . . . . . . . . . . . . . . . . . . .
37
37
Removal . . . . . . . . . . . . . . . . . . . . . . . . . .
37
I nsta llation . . . . . . .
. . . .. . . ....
Disassembly
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Oi l Seal Replacement
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40
Assembly . . . . . . . . . . . .. ... . . 40- 4 1
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Disassembly
Assembly
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. 42-43
42
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42-43
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EXPLODED VIEW . . . . . . . . . . . . . . . . . . . . . .
43
PARTS LIST
44
SECTION V
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Dissassembly (Sta ndard Differential) . ..
Assembly (Standard Differentia l) . . .. . .
Disassembly (Bevel Gear Differential) . .
Assembly (Bevel Gear Differential) . . ..
21
22
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EXPLODED VIEW (5053 TRANSMISSION) . .
23
PARTS UST (5053 TRANSMISSION) . . . . . . .
24
EXPLODED VIEW (5058 TRANSMISSION . . .
25
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PARTS LIST (5058 TRANSMISSION) . . . . . .
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EXPLODED VIEW . . . . . . .. . . . . .. . . . . . . . .
8-SPEED TRANSMISSION
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45-53
45
Description
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45
Removal
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45
Insta l lation
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Disassembly
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45-47
Needle Bearing Replacement
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47
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Cluster Gear .
Cleaning, I nspection, Bearing and
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Assembly
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47-50
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4-SPEED UNIDRIVE TRANSMISSION
1 5-26
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SECTION IV
14
15
Description . . . . .
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15
Removal . ... . . . . . . . . . . .
Replacement . . . . . . . .
. . . . 1 6- 1 7
Disassembly . .. . . . .
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. . . . . 1 6- 1 8
Clea ning, Inspection, Bearing a nd
Oil Seal Repl acement . .
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18
Assembly . . .
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1 9-20
Assembly of 5058 Series with
Bevel Gear Differential .
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5053
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PARTS LIST . . .
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LIMITED SLIP DIFFERENnAL . .
Disassembly . . . . . . .
Assembly . .
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10
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11
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8-9
Disassembly
Cleaning, Inspection, Parts Replacement
Assembly . . .. . . . . . . . . ... . . . . . .. . . .
27-36
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8-PINION DI FFERENTIAL . . . . . . . . . . . . . . . .
Di sassembly . . . . . . . . . . . . . . . . . . . . . .
Assembly . . . . . . . . . . . . . . . . . . . . . . . .
EXPLODED VIEWS
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PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . .
50
50
50
5 1 -52
53
TRANSMISSION USAGE
.._---_. _--
YEAR
TRANSMISSION USED
TRACTOR MODEl
1958
1959
RJ-58 RJ-59
1960
Suburban 1/4001/ & 1/500"
5003
--------�
5010
----
401
551, 701
1962
502, 552, 702, 32E, 32R
. ------
II
3 3E, 33R, 603, 633, 653, 753
953
5025
5045
II
II
34E, 34R, 604, 654, 704
854
1045
1054
5046
5025
5025
5047
II
II
------- ---- -
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-------_._----_._..- . .
1965
1966
-�- -------
5025
-------
1964
II
II
._-_...._--_.
L·l05, l·155
60S, 655, 855, 1055
1054A
II
5048*
5049
5051
_._-_._----. ------
II
II
._-----_._--
l· 106, l-·156, 606, 656, 1046,
1056, 856
5053
5053
L.l07, l-157, 607, 657, 857
867, 1067, 1267
1057, 1257
II
II
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------ ------ --._--------------_. ----
5053
5060
5058
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1967
I
1/
5010
5007
...__ .-
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1961
1963
MANUAL SECTION
II
III
II
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1968
II
1-2631 Electric
1-1631 Recoil
1-3631
1-4631
1-4831
1-6931
1-6041
1-6241
1 ·6231
5053
5053
5053
5053
5053
5060
5060
III
III
1-3745 -1-3741
1-6041
1-6241
5053
5071
5071
II
III
III
5073
5073
5073
V
V
V
5080
5073
5073
IV
5086
5086
5073
5073
5085
V
V
V
V
IV
he
lawn Ranger
lawn Ranger
1/500" Special
Commando 6
Commando 8
Raider 9, 10
Raider 12
Workhorse "7001/
Raider 10
Raider 12
1970
Raider 10
Raider 12
Raider 12
1-6051
1-6251
1-6253
1971
Workhorse 1/8001/
Raider 10
Raider 12
1-0100
1-0300
1-0310
1972
Raider 8
Reider 10
Raider 12
Raider 14
Commando "800"
1-0330
1-0301
1-0311
1-0320
1-0110
1973
8
10
12
14
8
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II
II
II
II
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Eight Speed
Eight Speed
Eight Speed
Eight Speed
Four Speed
5086
5086
5073
5073
5085
1-0370
1-0360
1-0350
1-0340
1-0120
------ ----- .-------
_.- ----_..._------
B-80 4 Speed
C-100 8 Speed
C-120 8 Speed
C-160 8 Speed
1-0140
1-0390
1-0353
1·0380
5080, 5084
5091
5091
5091
1975
B·80 4 Speed
C-100 8 Speed
C-160 8 Speed
1-0141
1·0391
1-0381
5084
5091
5091
..•. _---_.
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IV
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1974
Up-dot" 5048 to 50S3 with 7168 kit.
V
V
V
V
IV
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HP
HP
HP
.----_. ---
IV
V
V
TRANSMISSION USAGE
YEAR
1 976
TRACTOR MODEL
6-60 8-Speed
6-80 B-Speed
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8-100 8-Speed
C-I20 B-Speed
C-I20 B-Speed
C- 1 6O a-Speed
C-1 6O 8-Speed
8-60 8-Speed
8-80 8-Speed
8-1 00 a-Speed
C-I20 8-Speed
C-1 6O a-Speed
C-81 B-Speed
C-1 0 1 B-Speed
1 03907
509 1
V
V
1 03907
5091
V
V
103907
509 1
V
V
1 03907
V
1 03907
1 03907
1 03907
1 03907
1 03907
V
V
V
V
V
81-08K801
8 1 -IOK801
BI-1 2K801
BI- 1 4K801
81-1 6K80 1
BI-168801
1 03916
1 03916
1 03916
10391 6
1 039 1 6
1 0391 6
V
V
V
V
V
V
9 1 -08K80 1 &
9 1 -08K802
91-IOK801 &
9 1 - 1 0K802
9 1 - 1 1 6801
9 1 - 1 2K801 &
9 1 - 1 2K802
9 1 - 1 4K80 1 &
9 1 - 1 4K802
9 1 -16K80 1
9 1 - 1 66801 &
91 -166802
1 039 1 6
V
1 039 1 6
V
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1 979
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C-81 B-Speed
C-101 8-Speed
C- 1 2 1 8-Speed
C-1 41 8-Speed
C-16 1 8-Speed
C-1 6 1 Twin 8-Speed
509 1
5091
7 1 -07K801
7 1 -08K801
7 1 - 1 0K80 1
7 1 - 1 2K80 1
71 - 1 6K801
71-16K802
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1 978
MANUAL
SECTION
61 -07K80 1
61 -08K801 ,
61 -08K802 &
61 -08K804
61-08K803
61-10K80I,
6 1 -IOK802 &
61 -10K804
61 -IOK803
61 -12K80I,
61 -1 2K802 &
61-1 2K804
61-1 2K803
6 1 -16KBOI,
61 -1 6KB02 &
61 -16K804
61-1 6K803
6-80 B-Speed
6-1 00 B-Speed
1977
TRANSMISSION
USfD
VIN NUMBER
C-III B-Speed
C-12 1 8-Speed
V
V
1 039 1 6
V
1 0391 6
1 039 1 6
V
V
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C- 1 41 8-Speed
1 0391 6
1 0391 6
C-1 61 8-Speed
C-161 Twin 8-Speed
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TRANSMISSION USAGE
YEAR
1 980
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VIN NUMBER
C-85 8-Speed
1 982
TRANSMISSION
USED
MANUAL
SECTION
1 039 1 6
V
1 0391 6
5086
1 0391 6
1 039 1 6
1 0391 6
1 0391 6
1 0391 8
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
C-1 05 8-Speed
1 1 00 Special
C-1 25 8-Speed
C-1 45 8-Speed
C-l65 8-Speed
C-1 75 Twi n 8-Speed
E-1 4 1 8-Speed
01 -08K80 1 &
0 1 -08K802
0 1 - 1 0K801
01 -1 1 B803
0l-1 2K801
01 - 1 4K801
01 -1 6K801
01 -1 7K802
01 - 1 4E801
C-85 8-Speed
C-1 05 8-Speed
C-1 25 8-Speed
C-1 45 8-Speed
C-1 65 8-Speed
E-1 4 1 8-Speed
GT-2500 8-Speed
01 -08K802
01 - 1 0K802
0 1 -1 2K802
01 - 1 4K802
01 - 1 6K802
0 1 -1 7K802
0 1 - 1 4E801
01 -1 1 B804
1 0391 6
1 0391 6
1 0391 6
1 0391 6
1 0391 6
1 0391 6
1 0391 8
C-85 8-Speed
C-1 05 8-Speed
C-1 25 8-Speed
E-1 41 8-Speed
GT-1 1 42 8-Speed
GT- 1 642 8-Speed
SB-421 8-Speed
SK-486 8-Speed
01 -08K803
01 -lOK803
01 - 1 2K803
01 - 1 7K803
01 - 1 4E801
Al- 1 1 420l
Al-1 64201
01 - 1 1 BH01
0 1 -1 6KH01
1 0391 6
1 0391 6
1 0391 6
1 0391 6
1 0391 6
5086
5086
5086
5086
5086
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V
V
V
V
V
V
V
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1 981
TRACTOR MODEL
- 48-
Section I
5003
5010 TRANSM ISSIONS
•
DESCRIPTION
The 5003 and 50 1 0 transmissions are readily iden
tifted by their removable steel side covers which are
bolted to a one piece cast iron case. The transmissions
are of the sliding gear type and provide three speeds
forward and one speed in reverse.
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The d ifferential is of the spur pinion type. On a l l
original equipment transmissions, the ring gear is a n
i ntegral part o f the differentia l case. The s, rvice reo
placement, however, consists of a case and gear as·
sembly in which the gear is bolted to the d ifferential
case.
All shafts operate on needle or ba l l bearings sup
ported by the steel side covers.
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RATIOS
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lst gear . .
2nd gear
3rd gear
Reverse
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42.4 to
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5 1 .5 to
REMOVAL AND REPLACEMENT
Removal :
Remove three bolts at each transmission side cover
and frame side rai l . Move tra nsmission assembly
away from the tractor. Remove the wheels a nd hubs,
clutch and idler arm assembly, and transmission in
put pul ley.
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Remove a n y mid-mou nted o r trailing attachment
which might i nterfere with transmission remova l .
Provide. some support under the tractor frame a head
of the tra nsmission.
Instal l clutch and idler arm assembly, brake rod,
and i nput pulley. Instal l wheels a nd hubs a nd move
t hrough holes in each transmission side cover and
correspond ing holes in frame side rails. Tighten nuts
securely.
- 5-
I nsta l l drive belt a nd belt g uard. Connect clutch
rod. lay lift cable i n place along top of tra nsmission,
i nstal l hitch a nd connect lift cable.
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assembly i nto place on the tractor. I nstall three bolts
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Installation:
Drain lubricant a nd clean case as necessary be
fore disassembling.
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Remove the seat, fender and tool box assembly if
so equipped, belt g uard, belt, and clutch rod. Discon
nect the lift cable a nd remove the h itch.
I nstall fender and tool box assembly if so
equipped, a nd install seat. Remove s upport from be
neath t ractor frame.
500]·5010 ].SPEED TRANSMISSION
Disassembly:
The transmission should be mounted in a vise or
suitable fixture as shown in Figure 1, with the left
cover up and the gear shift lever and top of the case
toward the mechanic working on the unit.
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FIGURE 3
4. Clean and remove all burrs from both axle
shafts and brake shaft and remove both axle
seals.
5.
FIGURE 1
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The followi ng steps are for com plete disassembly
with the transmission in the vise, as shown in Fig
ure 1.
Lift the ru bber shift lever boot and loo�en the
shift lever set screw and lock nut, and remove
the shift lever.
2.
Remove the two bolts that hold the brake band
to the side cover bracket and remove the brake
band.
3.
Remove the snap ring (some models may have
a set screw) from the brake shaft and remove
the drum using a suitable pul ler as required.
Remove the Woodruff key from the brake shaft.
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1.
Remove the nine left cover reta ining bolts a nd
lift off the cover. NOTE: Figures 2 and 3 show
the two types of covers used on these tra nsmis
sions, one with a ba ll bearing and one with a
needle bearing at the brake shaft location. Re
placement information for each type is given in
Service Notes 1 a nd 2, Page 12.
FIGURE 4
6.
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Remove the spline shaft and pinion gear. See
Figure 4. NOTE: The shaft and matching gears in
some transmissions have 1 0 spl ines while later
models have 11 spl ines. For details and ordering
i nformation, refer to Service Note 3, Page 12.
7. Remove the bolts from the right cover a nd break
the case loose from the cover gasket. This will
allow the case to shift sufficiently to let the clus
ter gear assembly to be worked loose and re-
FIGURE 2
-6-
moved, as shown in Fig ure 4. The cl uster gear
may be d isassembled as shown i n Figure 5. Dis
assemble a nd assemble carefully to avoid dam
age to the Woodruff keys a nd bush ings. The
cluster gear bushings may be removed and in
sta l led using suitable a rbors.
1 0.
Remove the differential and axle assembly, the
bra ke shaft gear and the input gear and shaft.
See Figure 7. Remove the i nput shaft sea l.
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FIGURE 1
FIGURE 5
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FIGURE 8
FIGURE 6
Remove the low a nd reverse, a nd the hI g h a nd
second sliding gears. If either gear is to be re
placed, refer to Service Note 3. Page 9.
9.
lift the brake shaft gear slig htly, and rotate the
transmission case to the right and upward. over
the top of the i nput gear. Position the case so
that the differentia l ring gear is centered be·
tween the two seat spring bosses. The case may
now be removed by working it up over the dif
ferentia l ring gear.
-1-
To remove the reverse id ler gear, drive out the
rol l pin from the id ler gear pin and remove the
pin and gear. See Figu re 8. (Early models used
a rol l pin at each end of the id ler gear pin.)
12. Before removing the shift forks and shift ra ils.
mating pa rts shou ld be marked or scribed so
they may be reassembled properly. The shift
fork retaining rol l pins may be removed by driv
ing them out with a X" punch i nserted throu g h
the shift lever tower. Remove the shift rai ls mak·
i ng su re to catch the two ba l ls, spri ng and stop
pin as they are released. NOTE: Althou g h the
shift forks are identical, the shift rai ls differ.
The low and reverse shift rail (located nearest
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1 1.
the end of the case) has three equally spaced
detent grooves. The high a nd second shift rail
has two of the three dete nt grooves closely
spaced.
slide i nto position, mak ing sure the detent
g rooves are toward the opposite shift rai l . Se
cure the shift fork t o the shift rai l with a Va"
x 1 " roll pin.
4_ Position the low and reverse shift rai l assembly
so that the center (neutral) detent groove l ines
up with the detent hole and insta l l one of the
stop bal ls, spri ng and the shift stop pin.
C leaning, Inspection, Bearing and
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Oil Seal Replacement
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Thoroughly clea n a l l parts and i nspect for damage
and wear. Use suitable arbors when replacing bear
ings. Always renew a l l oil seals and gask ets.
5.
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If the differential and axle assembly is to be serv
iced, refer to Differentia l Overhaul Section.
6 . Position the shift fork on the shift rail so the shift
Q roove faces the opposite shift ra il, a nd continue
to slide the ra i l into place, mak i ng sure the de
tent grooves are facing the stop ball. Secure the
shift fork to the shift rai l with a Va" x 1 " rol l pin.
5003 ·5010 3·S PEED TRANSMISSION
Assembly:
1.
Place the other ball on top of the spring a nd
push the ball and spring throug h the high a nd
second shift rai l bore with a K6" punch u ntil the
�a l l is fl ush with the bore. I nsert the high and
second shift rail, removing the punch as the
shift rai l passes the ball.
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I nsta l l the reverse id ler gear in position so that
the cha mfered end of the gear faces the left
side of the case. This will position the gear with
the straight edge toward the rig ht side of the
case, as shown in Figure 9. I nsta l l the reverse
idler pin a nd secure with a K," rol l pin.
FIGURE 1 0
-
.
-
-
I
7.
Place the right side cover i n a vise. I nsta l l the
i nput gear a nd shaft assembly. See Figure 1 0.
8.
I nsta l l the side cover gasket using gasket sealer
to hold in position.
9.
I nsta l l the brake shaft gear.
FIGURE 9
2.
3.
Position the low and reverse sh ift fork (the one
nearest the end of the case) between the shift
rai l supports so that the shift lever groove points
toward the opposite shift rai l .
I nsert t h e low a nd reverse shift rai l (the one
with the equally spaced detent grooves) and
- 8-
1 0.
I nsta l l the differential and axle assembly. Ser
Figure 1 0 showi ng the i nput gear, brake shafl
gear and differential assembly i n position.
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FIGURE 1 2
FIGURE 1 1
11.
Before i nsta l li n g tra nsmission case make sure
1 9.
that it is positioned properly in relation to the
range s t o determi ne if the unit h a s been proper
right side cover. This will place the shift lever
ly assembled.
tower to the front and toward you, as i n Figure
1 1.
20.
ential ring gear, lift the brake shaft gear slightly,
and seat case in position. Make sure the brake
21.
Insta l l left side cover over the axle and brake
I
shaft and tap gently i nto position, making sure
shaft gear and differential assembly a re seated.
th, a t a l l bea rings and shafts are properly seated.
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1 3.
I nstal l gasket on left side cover using gasket
!ea ler to hold in place.
To insta l l the case, work i t down over the. differ·
he
1 2.
Turn in put shaft and shift tra nsmi ssion i nto a l l
Position the hig h ' a nd second sliding gear (the
22.
I nstal l left side cover retai ni ng bolts and torque
H
smal ler one) on the lower shift fork. Position
the low and reverse (the lar ger one) on the up
a l l bolts on both side covers even ly.
per shift fork. When properly i nsta l led the
er. See Figure 1 1 .
or
shift fork grooves wi l l be adj acent to each oth
23.
a free neutra I.
I nsta l l the cl uster gear assembly. See Figure 1 2 .
1 5.
I nsta l l the spli ne shaft a nd pi nion gear and seat
24.
Carefu lly insta l l a l l new oi l sea ls and again
check for free operation.
in position.
25.
I nsta l l the ri ght side cover bolts. Do not tig hten
I nstall the brake shaft Wood ruff key and i nsta l l
the brake drum. Secure the brake drum with the
at this time.
snap ring. I nsta l l the brake band and fasten to
the a nchor bracket with the two bolts.
17. Make sure shift forks are in neutra l posi tion and
i n sert shift lever and secure with the retaining
set screw and lock n ut. Do not tig hten set screw
1 8.
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1 4.
1 6.
Chec k transmission for proper operation and for
26.
Fill tra nsmission to check plug level with lubri
too tight, as it may bi nd the shift lever.
cant. The fi l l plug is located on top of the case.
I nsta l l the shift lever rubber boot.
to the axle tube.
The check plug is on the right side cover next
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5003·5010 DIFFERENTIAL
OVERHAUL
For removal of differential assembly, see Trans
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mission Disassembly Section.
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Disassembly:
1.
Drive the roll pins from the end of the differ
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ential pins, remove the pins (early models used
roll pins at each end of the differential pins) and
remove the spider gears. See Figure
FIGURE 2
1.
3.
lift the axle gears aut of the case. Remove the
Woodruff keys from the axles.
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Cleaning, Inspection, Parts Replacement
Thoroughly clean all parts and inspect for damage
and �ear. Use a suitable arbor when replacing bush
ings. If replacement of the differential case or gear is
required, refer to Service Note 5, Page 12.
FIGURE 1
Drive the roll pins out of the axles and pull the
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2.
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Figure 3 shows a breakdown of the entire differ
ential assembly.
axles from the axle gears. See Figure 2.
FIGURE 3
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5003·5010 DIFFERENTIAL
2.
Assembly:
Place the spider gears in position, as shown in
Figure 6, slide the differential pins into position
through the spiders and secure with roll pins.
The splden must be placed in position
as shown, and the diagonally opposite spiders
should be in the same direction. Check for prop
er operation.
NOTE:
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1.
FIGURE 4
To assemble the differential (see breakdown Fig
ure 4) place the axle gears in the differential
case, insert the Woodruff keys in the axles, slide
the axles into the axle gears and drive in the
retaining roll pins. (Figure 5 shows the axles,
gears and roll pins assembled.) If the axles will
not s l ide freely into the axle gears, p lace a
spacer between the two axle gears, which will
hold them apart enabling the axles to be driven
into position.
FIGURE 6
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For instal lation in transmission case, the Transmis
sion Assembly Section.
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FIGURE 5
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5003 AND 5010 SERVICE NOTES
1.
TRANSMISSION
COVERS
All # 5003 production transmissions and the early #501 0 ,ransmissions were equipped with ball bearings
on the brake shaft. late #501 0 transmissions and replacement transmissions of both models were pro
duced with needle bearings. To insure receiving the correct side covers, please order as follows:
PAiT NO.
DESCRIPTION
TYPE OF BEARING
USED ON
OIL SEAL
RIGHT COVER
All
#3509-59
lEFT COVER
#5003
#" 1519 BAll BEARING
# 1234
#3509-59A
LEFT COVER
#5003
:# 1508 NEEDLE BEA R ING
#1303
#3509·60
LEFT COVER
#5010
#15 1 9 BAll BEA RING
#1234
#3509·60A
LEFT COVER
#5010
:# 1508 NEEDLE BEARING
#1303
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#3504
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2.
#3559 BRAKE SHAFTS
A. Original equipment brake shafts used in ball bearing type transmissions cannot be used with needle
bearing side covers.
B. Presently stocked brake shafts and those used in needle bearing transmissions are interchangeable.
To install in ball bearing transmissions, use four 1197 Shim Washers between the brake shaft gear
and the left side cover plate.
3.
SPLINE SHAFT AND MATCHING GEARS
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All tractors and replacenient transmissions produced previous to tractor Serial No. 11628, contain Part
No. 3521 Spline Shafts with 10 straight sides splines and matching gears, Part Nos. 3523, 3524 and
3526.
All tractors and replacement transmissions produced after tractor serial number 11628, contain Part No.
3521 Spline Shafts with 11 involute tooth form spl ines and matching gears, Part Nos. 3523, 3524 and
3526. The matching gears for the two types of Spline Shafts are NOT inter·changeable, although the
part numbers are identical.
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4.
#3559 BRAKE SHAFT
H
It is suggested that, when ordering the #3523 High ond Second Gear, the #3524 low and Reverse Gear
or the #3526 Splined Pinion Gear, the number of Splines on the #3521 Spline Shaft be noted. This will
eliminate the possibi lity of receiving gears which will not assemble on the Spline Shaft.
.The ordering of the #3521 Spline Shafts should be handled in the same manner.
5.
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or
The original 113559 brake shaft has been replaced with a new design. The new shaft has more strength and able
to carry more load.
The 113502 differential case and gear hos been replaced with porI #7243 and 113559 (See Figure A). If either the
original 113559 or 113502 ore required, order both new ports #3559 and 117243. The new ports ore shown in Figure
A. The original construction is shown in the exploded view rawing.
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FIGURE A
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-1 3-
5003 · 5010 TRANSMISSION
When ordering partl
alwoYI lilt
Port No. and
nome o f part.
(Specificotionl lubject to chonge without notice.)
Ref.
No.
"
No.
Description
Ref.
No.
Part
No.
Description
No.
leq'd.
1
3504
Right Tranlminion Cover
1
31
3516
Shift Roil - Rear
2
123-4
Oil Seal
2
32
933156
Roll Pin
3
1519
8011 learing
•
33
1013
Pipe Plug
1
•
3536
Golket Tronsmillion
2
3-4
3501
Tronlminion Houling
1
5
1108
Pipe Plug
35
3509
Left Tronsminion Cover
1
3
36
908016·.
Hex
•
37
1503
8ronze lea ring
2
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Ye"
1
"
Ye
1
x
2
6
1502
8011 learing
7
1122
No.
8
3533
Clulter Shaft
1
38
1257
Oil Seal
2
9
3559
8roke Shaft and Gear
1
39
3532
Axle
2
10
3522
Input Gear
1
.0
937022
Key - Woodruff No.
1
.1
1517
8ronze lea ring
42
933217
Roll Pi"
43
3502
Differential Co.. and Gear
1
1
.u
3535
Differential Pinl
•
18
45
93319.
Roll Pin
1
,.6
3530
Axle Gear - Differential
2
9
Woodruff Key
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No.
lec(d.
1
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Part
8o1t J(,.18 x
Y.
18
15
•
11
1518
Needle learing
•
12
3523
Hi
,
13
352.
Low
1.
3526
Splined Pinion
15
920082-4
Lockwasher
16
3521
'
Spline Shaft
17
3528
Cluster Shaft Reduction Pinion
1
,.7
3531
Spider Gear - Differential
•
18
3525
Clulter Gear
1
..
1001
Knob
1
19
3527
Clulter Shaft Reduction Gear
1
.9
3538
Lever - Shift
1
20
150-4
8ronze learing
2
50
3577
loot - Shift Lever
1
21
1243
Cup Plug
933168
Roll Pin
'S2
1
22
3573
Pin - Shift Stop
1
23
3518
Spring - Shift Stop
1
24
3517
8011
2
25
3503
Shift Fork
2
26
3520
Rever.. Idler Gear with learing
1
27
1516
learing - Rever.. Idler Gear
1
�
28
933188
Roll Pin
6
58
29
3519
Rever.. Idler Pin
1
$9
30
3515
Shift Rail - Front
1
•
1
& Rever.. Gear
J(,
1
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- 1 4-
x
x
2
1�
1�,
Collar - Shift Lever
53
1239
�.20
x
�
Dog Paint Set Screw
1
1
1
54
915111-6
Nut - Hex
55
936125
Snap Ring
$6
3543
8rake 80nd with Liner
1
3540
8rake Drum
1
920081-4
Lockwalher
908002.•
Hex 80lt
�·20
�"
Truarc
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· 'See Service Note
"'See Service Note
" "s.. Service Note
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2
1�
351.
,
#3
#1
#2 & •
#5
x
52
-----,-
'See Service Note
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1
�1
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1
- Stop
�,
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& Second Gear
2
�"
�.20
Dia.
x
Y.
2
2
Section I I
5053 · 50 58 3·$PEED UNI DRIYE
DESCRIPTION
Mode l 5053 cover s a l l st andar d mode ls (5007,
5025, 504 6, 5048, 5049, and 5053) equ i pped wit h
the spur gear differe ntia l .
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The 3- spee d u nidr i ve transmission is an a l l-ge ar
tra nsmission utiliz ing sliding ge ars and spli ned shafts
for easy shifti ng. All shafts ope rate on needle or ball
bearings su pported by the tr a nsmission case . The
tra nsmission case consists of R.H. and l. H . cast ir on
case halves which are dowe l le d for a l ignme nt and
bolte d se cure ly toge the r.
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Mode l 5058 cover s a l l he avy du ty mode ls (5045,
,.5047, 505 1 , 5059, and 5058) incor por at ing the be ve l
ge ar differe ntial.
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The mode l nu mbers 5053 a nd 5058 u se d in this
se ction stand for t he fu l l line of u n idrive tra nsmis
sions produced since 1 9 6 1.
RATIOS
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ht ge ar . . . . . .
2 nd ge ar
.
3 rd gea r
Re ve rse
.
.
.. .
.. .
..
.
.
.
.
.
.
.
.
...
.
.
.
6 6 . 8 to
.
.
.
.
... ..
42.4 to
24. 6 to
51 . 5 to
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Removal:
ne ce ss ar y to gain c le ar ance, re move t he du st cover
a nd i nstru ction plate locate d ju st a head of t he shift
le ver .
Re move mid- mou nted or tr ailing attach me nts, or
hitches which might interfere wit h tr a nsm ission re
mova l . Su pport the tractor frame a head of the trans
mi ssion ju st e noug h t hat the rear whee ls no longer
carry a ny we ig ht.
Re move two ca p scre ws t hat fa ste n t hr ou g h the
bottom of t he tool box i nto t he top of t he tra nsmis
sion. Re move four cap scre ws t hat go thr ou g h t he
frame bu tt plate i nto the front of the tra nsm ission .
lower the front of the tra nsmission, guide t he shift
le ver down betwee n the fr ame r a i ls, and r oll the
tr ansmission and wheel asse mbly fre� of the tr actor .
Remove the R.H. foot rest, if so e qu i p ped, be lt
guard, a nd bel t. Discon nect t he bra ke rod or re move
the br ake ba nd from the anchor br acket. On most
models, re move the fe nder and se at asse mbly. If
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These basic instructions apply to a l l tract ors
equ i p pe d with Unidr i ve transmissions. De viate fr om
the m as ne ce ssary for any particu lar tractor .
Dr ain lu br icant, re move whee ls, a nd clean tr ans
mission as nece ssar y be fore disasse mb li ng.
NOTE: It is recomme nded that two pilot stu ds be
use d to facilitate tra nsmission i nsta l lation. To make
the stu ds, cu t t he heads off of two Ye" -16 X 2" he x
he ad or carr iage bolts. Grind a taper on the u n·
threaded e nd of e ach bol t. Screw one stud into one
of the u pper holes in the front of the tr ansmission
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Installation:
case . Pu t the other one in the diagona l l y opposite
lowe r hole .
Inst a l l input pu l le y, ax le hu bs and whee ls. Move
the transmission asse mbly i nt o place and gu ide t he
shift leve r u p betwee n t he fr ame rails. Al ign t he pi lot
- 15 -
studs with the corresponding holes in the frame butt
plate and push the transmission firmly in place
against the plate. Install cap screws in the top of
the transmission and the open holes in the front, and
tighten them until snug. Remove the pilot studs one
at a time, replacing them with cap screws. Tighten
all six cap screws securely.
Connect brake linkage. Install dust cover, instruc
tion plate, fender and seat assembly, drive belt, belt
guard, foot rest, etc.
Fill the transmission to proper level with S.A.E. 90
gear oil. Remove support from beneath tractor frame.
Test tractor operation.
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UNIDRIVE TRANSMISSION
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5053·5058
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Disassembly:
1.
2.
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These instructions apply to all unidrive models un
less indicated. A section applying only to specific
models will be so identified.
Remove axle hubs and input pulley.
Place the transmission assembly in a vise or
suitable holding fixture, as shown in Figure 1.
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FIGURE 2
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7.
H
Remove paint and burrs from both axle shafts,
brake shaft, and the input shaft.
FIGURE
1
4.
Remove the two (2) brake band retaining bolts
and remove the brake band.
5.
Remove the brake drum retaining ring and re
move the brake drum using a suitable puller
as required. See Figure 2.
6.
Remove the six (6) Ye" x 16 bolts and nuts that
retain the right hand and left hand cases.
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Place the gear shift lever in neutral and pull
the gear shift lever rubber boot away from the
transmission boss. loosen the gear shift lever
retaining lock nut and set screw and remove
the gear shift lever.
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3.
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R move the left hand case, as shown in Figure 3.
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or
8.
fiGURE
-16-
3
9.
Lift ou t the axle a nd differe ntial asse m bly. Figure
4. Note: If only the diffe re ntia l is to be ove r
hau led the trans m ission nee d not be fur the r d is
asse mb led. See Diffe re ntial Over hau l Se ction.
10.
Shift the 2nd and high shift f or k asse mbly up
into the 2nd spee d p osition . See Figure 4.
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FIGURE 6
FIGURE 4
The following steps 1 1 through 1 7 apply to all
unidrive models except 5058 and 5059. For models
5058 and 5059 follow steps 1 A through 7A.
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11.
Re move the sp li ne d p i nion shaft and ge ar . At
the same time the cluste r ge ar asse mbly may be
re move d . See Figu re 5.
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Place the shif t f orks in neu tr a l and re move first
the low and re ve rse shif t ra i l and for k assembly,
the n the 2nd a nd high shift ra i l and fork asse m
bly, be ing carefu l not t o lose the tw o stop balls.
spr ing a nd stop p i n as they are re le ase d . Fig
ure 8 .
or
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1 4.
FIGURE 7
Re move t he br ake shaft gear asse mbly and the
re ver se i d ler gear . See Fi gure 6.
1 3.
Re move the 2nd and high sliding gear and the
low and re ver se sliding ge ar. as show n i n Figure
7.
-17-
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12.
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FIGURE 5
FIGURE 8
15.
Re move the re ve rse idle r shaft and t he input
shaft and ge ar. See Figure 9. Note : The re ve rse
idle r shaft may somet i me s st ick in t he left hand
case .
17.
The cluste r gear may be disasse mb led, a s shown
in f igure 11. Disasse mb le and asse mble c are
fully to avoid damage to t he woodruff keys and
bu$ hi ngs. The cluste r ge ar bushings may be
re move d and inst a l le d using suit a ble arbors.
The following steps IA through 7A apply to Uni
drive models 5058 and 5059 only.
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IA. Remove t he cluste r ge ar asse mbly, t he broke
shaft asse mbly, a nd the re ve rse idle r ge ar and
shaft .
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FIGURE 9
1 6.
If it is de sired to re place t he case be arings t he y
may e asily be re moved a n d installed wit h suit
able arbors. Whe n re placing be ari ngs t he y should
be pre sse d i n so t hat t he y a re flush wit h t he
i nside of t he case, as shown in Figure 1 0 .
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2A.
FIGURE 12
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Remove t he splined pinion ge ar from t he input
shaft .
3A. Place t he shift fork in ne ut ra l and re move t he
or
H
low and re ve rse shift rai l and fork ass� mbly
(t he : one ne are st t he e nd of t he case ) t oget he r
wit hI t he low and re ve rse sliding gear mak i ng
sure t o catch t he st op ball as t he shift rai l is
[
rem ove d . See Figure 1 2 .
4A. Remove t he 2nd a nd high shift roi l and fork
FIGURE 10
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asse mbly toget he r wit h t he 2 nd and high sliding
gear .
SA. Rem ove t he re maining st op ba l l, spring and stop
pin.
6A. Re move t he in put shaft a nd ge ar asse mbly.
7A. Refe r t o ste p 17 if cluste r is to be ove rhaule d .
•
Cleani"g, Inspection, Bearing and
FIGURE 1 1
Thoroughly clean a l l ports and i nspect for damage
a nd wed r. U se suitable arbors whe n re placing be ar
i ngs. Always re ne w a l l oil se als and gasket s.
- 18-
UNIDRIVE TRANSMISSION
5053 - 5058
Assembly:
Place the right hand case in a vise or other su it
able fixture for assembly, as shown in Figu re 1 3.
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FIGURE 1 3
The following steps apply to all unidrive models
1.
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except 5058 and 5059. For these models, follow steps
1 B through 1 7B.
FIGURE 1 5
I nstall the input shaft and gear, and reverse
id ler shaft, as shown in Figure 14.
I nsta l l the 2nd stop ball and u si ng a pu nch
pu sh the ball in against the spr ing. Move the
2 nd & high shift rai l i nto the neu tral p osition
and continue to pu sh on the pu nch u nti l the ball
is flu sh with the shift rai l bore. At the same time
insert the low and reverse shift rai l a nd fork
assembly, removing the pu nch, as the shift ra il
passe s the ball. See Detent Drawing. Figure 1 5
a nd 16.
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4.
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FIGURE 1 4
Insta l l the 2nd and high shift r a i l and fork as
sembly (t he one w ith the u nequ a l l y sp aced deten t
grooves. ) See Figure 1 6.
3.
Insta l l one stop ba l l, sp ring and stop p i n. Refer
to detent dr aw i ng and Figure 15.
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2.
FIGURE 16
-19-
5.
Shift the 2nd a nd high shift fork i nto the 2nd
speed position and i nsta l l the 2 nd and high
sliding gear, and the low and reverse sliding
gear in position on their respective forks, Figure
1 7. Note that the shift fork grooves of the sliding
gears face each other, and that the smaller of
the two gears is the 2nd and high gears which
goes on the bottom.
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FIGURE 1 9
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FIGURE 1 7
Install the reverse idler and the brake shaft, as
shown i n Figure 1 8, making sure that the fl anged
end on the reverse idler goes down.
7.
I nsta l l the splined shaft and gear through the
two splined sliding gears seating the bottom end
of the shaft i nto the i n put gear bearing. See
Figure 1 9. Insta l l the clus ter gear assem bly c are
fully seating it in its bearing a nd meshi ng it
with its related gears.
8.
9.
Place sh ift forks i n neutral position and check
for a free neutra l and proper operation in a l l
gears.
or
I nsta l l the differential and axle assembly, as
shown i n Figure 20, making sure that four (4)
nuts are up toward the L. H. case.
FIGURE 20
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6.
1 0.
I nsta l l a new case gasket holding it i n place
with gasket sealer and i nsta l l the left hand case.
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11. I nstall the six (6) %" x 1 6 bolts and nuts a nd
tighten a l l bolts evenly to avoid distortion.
1 2.
I nsta l l the shift leve r assembly and retai n with
the set screw and lock nut. I nstall gear shift
lever rubber boot.
1 3.
Check again for a free neutral and operation i n
a l l gears.
14.
I nsta l l the brake s haft Woodruff key a nd install
the brake drum. Insta ll the brake drum reta ining
sna p ring.
15.
I ns ta l l the brake band and secure with the two
retaining bolts.
FIGURE 18
- 20 -
12B. l nsta l l a new case gasket holding it in place with
gasket sealer and i nstall the left hand case.
Assembly of 5058 Series With
Bevel Gear Differential
138. I nsta l l the six (6) % x 1 6 bolts and n uts a nd
t ighten a l l bolts evenly to avoid distortion.
lB. I nsta l l the i nput shaft a nd gear assembly.
3B. I nsta l l one stop ball, spring a nd stop pin. See
drawing Figure 1 5.
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2B. I nsta l l the 2 nd and high shift rai l and f ork as
sem bly (the one with the uneq ually spaced detent
grooves) together with the 2 nd a nd high sliding
gear (the smaller of the two sliding gears). The
sliding gear fits down over the i nput shaft with
the shift f ork g roove u p. See F igu re 2 1.
15B. C heck again for a f ree neutral and operation
in a l l ranges.
16B. , nstal l the brake shaft Woodruff key a nd i nsta l l
the brake drum. I nsta l l the brake d r u m retaining
snap ring.
17B. I nsta l l the brake band a nd secure with the two
retaining bolts.
D IFFERENTIAL OVERHAUL
STANDARD DIFFEREN'rlAL
Disassembly:
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4B. I ns:"11 1 the 2nd stop ba l l a nd using a punch
push the bal l in aga inst the spring. Move the
2 nd & high shift rai l i nto the neutra l position and
contin ue to push on the punch until the bal l I s
flush with the shift rai l bore. A t the same time
i nsert the low a nd reverse shift rai l a nd f ork as
sembly together with the low and reverse sliding
gear, removing the punch as the shift rol l passes
the ba l l. (See detent drawing F ig u re 1 5.) Note:
The low and reverse gear fits down over the
i nput shaft with the shift f ork groove down. See
F igure 2 1 .
14B. I nsta l l the shift lever assembly a nd retai n with
t he set screw a nd lock nut. I ns ta l l gear shift lever
rubber boot.
1.
Remove the four (4) retaining bolts and nuts.
2.
� ift off the differentia l side case together with
t,he axle shaft and gear.
3.
Remove the axle shaft and gear f rom the case.
4. Remove the differential b u l l gear.
FIGURE 21
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5B. Instal l the spli ned pinion shaft gear down over
the i nput shaft gear a nd through the two sliding
gears.
or
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5. N ote position of the four (4) pi nions. Adjacent
pinions are i nsta l led in opposite directions, which
make the position of the diagona lly opposite
p inions the same. See Figure 1 .
6B. Shift the 2 nd and hig h shift rai l and fork assem
bly in to 2 nd speed position.
7B. I nsta l l the reverse idler gear shaft and gear
assembly making sure that the shoulder of the
gear goes down.
FIGURE 1
8B. I nsta l l the brake shaft gear.
9B. I nsta l l the cluster gear assembly.
6 . Remove the pinions and shafts a nd remove the
remaining axle s haft a nd gear f rom the case.
lOB. Instal l the differential and axle assembly with
the differential bolt heads down. This will place
the lef t hand differential case with the threaded
bolt holes up.
11B. Place shift forks in neutral position. Check for
a free neutral and proper operation in a l l ranges.
7. The axle shaft gears may easi ly be removed by
driving out the rol l pins.
Fig ure 2 is a n exploded view of the com plete
standa rd differential assembly.
-21 -
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FIGURE 2
STANDARD DIFFERENTIAL
-M
Assembly:
1.
2.
I nsta l l one of the axle and gear assemblies i n
the differential case a nd i nsta l l the f o ur (4)
pinion s hafts.
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3.
FIGURE 3
If the axle gears were remov,ed insta l l them on
the axles a nd i nsta l l the retaining roll pins .
I nstal l two (2) pi nions with their teeth u p diag
onal ly opposite each other , a nd i nstal l the o ther
two (2) pinions with their teeth down diagonally
opposite each other . See Figure 1 .
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4. I nstall the differential bull gear.
I nsta l l the remaining axle and gear assembly i n
the remaining differe ntial case.
6.
Position the axle a nd gear , a nd differential c as e
over the pinion shafts, mes h the gears a nd s eat
the cas e agai nst the ring gear.
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5.
Disassembly:
Instal l differential assembly in a vise, the case
with the threaded holes should be down. Remove
the four (4) bolts and lock washers a nd remove
one of the axle shafts, gear, thrust washer and
differential case half as an assembly. S ee Figure
3.
I ns ta l l a thr ust w asher on each axle next to the
gear .
3.
Insta l l the short axle, gear and thrust washer
as�embly i nto the' threaded left hand d ifferential
calle.
4 . Instal l differentia l shaft, gear s a nd blocks as an
assembly i nto the bull gear and push the gears
Q nd blocks outward, seating the blocks into
pos i tion in the bull gear.
Ins:ta l l the bull gear, d ifferential shaft, gears and
blocks as an assembly onto the differenti al case
seating the differential block and bull gear. See
Fig ure 3 .
differ ential gears a nd differential blocks as a n
assembly.
3.
5.
4. The axle shafts, gears and thrust washers may
now be removed from the d i fferential case.
5.
The axle gear s may be removed fr om the axle
s hafts by removing the rol l pi ns. A brea k down
of the par ts is s hown in Figure 4.
-22-
Insta l l the right hand (long) axle gear, and
thru st washer assembly into the r ight hand
di� erential case.
I
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S l ide the differentia l blocks and gears toward
the center and remove the assembly fro m the
bull gear . The differential b locks a nd gears may
now be removed fr om the s haf t.
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2 . Remove the bull gear, differential pinion s haft,
2.
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1.
1. If t he axle gears have been removed from the
axles i nsta l l the gears and retai n with the rol l
pins.
or
BEVEL GEAR DIFFERENTIAL
Assembly:
H
7. Center the bull gear a nd i nstal l the four (4)
retaining bolts and nuts. Tighten s ecur ely and
evenly to avoid d istor tion.
BEVEL GEAR DIFFERENTIAL
Inst a l l the right hand case and axle assembly
onto the bull gear and center over the differ
ent i a l blocks. Secure wit h the 4-%" bolts and
wa' shers. Tighten evenly making sure the assem
blie s seat properly.
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5053 Typical Spur Gear Differential Type
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5053 TRAN SMISSION PARTS LIST
When ordering porta alwaYI lilt Part No. and name of part.
(Specification I lubject
to
change without notice.)
-
Part
No.
1
3900
COle R.H.
2
1 533
Bearing - Ball
3
1 528
Bearing - N eed le
Description
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Item
No.
lYJ I.D.
" 1.0.
4
1 508
Bearing - Needle
5
1532
Bearing - Needle I" 1.0.
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" 1.0.
Na.
ae..'d.
Item
No.
Part
No.
1
32
2
No.
Description
Re ..'d.
933156
Roll Pin y. x
2
33
35 17
Ball
2
2
34
351 8
Spring - Shift Stop
2
35
5614
Pin - Shift Stop
1
36
3525
Gear
1
37
1 504
Bearing - Bronze � 1.0.
-
-
Shift Stop
Cluster
1529
Bearing - Needle
7
1303
Seal - Oil
� Shaft
1
38
3528
Gear - Reduc:ion Pinion
8
1 232
Seal - Oil I" Shaft
3
39
3527
Gear - Reduction
9
391 5
Pin - Dowel
2
40
391 0
Shaft - Cluster Gear
10
3901
Case LH.
1
41
9370 1 4
Key #9 Woodruff
11
1 530
Bearing - Ne.dl. I " 1.0.
1
42
4204
Gear - Reverse Idler
12
1 53 1
� 1 .0.
1
43
1516
Bushing - Bronze y, 1.0.
13
3905
3903
Gear - Brake Shaft
14
3906
Gea r - Differentiol Bull
1
45
3902
Drum - Brake
15
4235
Gear - Diff.rential Pinion
4
46
937022
Key # 1 5 Woodruff
16
3909
Shaft
5
47
936131
Snap Ring
17
908 1 46
Bolt Hex �.- 1 8
48
7376
Ass'y. Brake Band & Lining
18
1316
Nut Huglock �.- 1 8
4
19
3904
Axle - Rear
2
20
3908
Gear - Axle
2
21
9332 1 7
Roll Pin X x H l
2
22
3522
Gear - Input
1
23
1518
Bearing - Needle
24
3523
Gear H i & 2nd
i
25
3907
Shaft Spline
1
26
3524
Gear - Low & Rever..
1
27
3526
Gear - Pinion - Sp l i n ed
1
28
936 1 25
Snap Ring � Truarc
1
29
561 5
Rail
-
Front Shift
1
30
5616
Rail
-
Rear Shift
1
31
3503
Fork - Shift
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6
Bearing - Needl.
Co..
-
Differential
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x
2
3X
lH
1
49
908002-4
Bolt Hex X .20 x %
2
50
92008 1 -4
Lockwcuher � Oia.
2
943<460
Plug r4 Pipe
52
943420
Plug Ya Pipe
53
391 2
Gasket
908043·4
Bolt Hex Ya-16 x 3�2
55
908038-4
Bolt Hex Ya · 1 6 x 2
56
9151 1 3·6
Nut Hex Ya-16 Nylok
5632
Ass'y. Shift Stick
3577
Boot - Shift Stick
1 239
Set Screw Dog Point X-20 x �
9151 1 1 -6
Nut Hex �-20 Nylok
1001
Knob
-
"Not included in No. 5053 Assembly.
- 24-
5
6
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51
"57
2
2
Shaft
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� 1.0.
4
I"
2
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5058 Bevel Gear Differential Type
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5058 TRANSM ISSION PARTS LIST
When ordering
partl
alwaYI lilt Part No. and name of parI.
(Specificationl lublect to change without notice.)
Item
Part
No.
No.
No.
Req'd.
Des cription
No.
Part
N o.
Description
33
5615
Rail - Front Shift
1
34
5616
Rail - Rear Shift
I
Req'd.
6940
COle �.H.
2
1 533
Ball Bearing 1);2 1.0.
3
1532
Bearing - Needle 1" 1.0.
35
3503
Fork - Shift
2
1508
Bearing - Needle �" 1.0.
36
9331 56
Roll Pin V. x I
2
1 526
Bearing - Needle IV." 1.0.
2
37
351 7
Ball - Shift Stop
2
2
38
3528
Spring - Shift Stop
1
39
5614
Pin - Shift Stop
I
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No.
Item
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6
1 529
Bearing - Needle �" 1.0.
7
1 303
Seal - Oil � Shaft
9
10
11
12
13
14
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8
2
Seal - Oil I V. Shaft
2
40
3525
Gear - Cluster
1
3915
Pin - Dowel
2
41
1 504
Bearing - Bronze � I.D.
2
6941
COle L.H.
42
3528
Gear - Reduction Pinion
1
1 530
Bearing - Needle I" 1.0.
43
3527
Gear - RedUc:lion
I
1 53 1
Bearing - Needle Ye" I.D.
44
3910
Shaft - Cluster Gear
1
1 232
Seal - Oil 1 " Shaft - Brake
45
93701 4
Key # 9 Woodruff
2
2822
COle - Differential R.H.
46
4204
1
COle - Differential L.H.
47
1516
Bushing - Bronze )1 I.D.
1
48
3909
Shaft
1
49
4166
Gear - Brake Shaft
1
15
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1213
16
2821
Gear - Differential - Bull
17
2820
Gear - Axle
18
2819
Gear - Differential Pinion
19
2828
Washer - Thrust
20
2826
Block - Differentiol
21
2827
Shaft - Dlfferentiol Pinion
22
6450
Axle - Rear - R.H.
54
92008 1 ·4
Lockwasher � Dia.
2
23
6451
Axle - Rear - L.H.
55
943460
Plug - � Pipe
I
24
933217
Roll Pin � x 1 );2
2
56
943420
Plug Y. Pipe
1
25
908043-4
Bait - Hex y' . 1 6 x 3)1
5
57
391 2
Gasket
1
26
920156·4
Washer-Internal Shakeproof y. Dia.
58
908038·4
Bait - Hex y'·16 x 2
5
27
5176
Gear - Input
59
9151 1 3·6
Nut - Hex %.16 Nylok
6
28
1518
Bearing - Needle Ye I.D.
*60
5632
Ass'y. Shift Stick
1
29
5173
Gear - Hi & 2nd
*61
1 239
Set Screw Dog Point �.20 x �
1
30
5174
Gear - Low & Reverae
*62
9151 1 1 ·6
Nut - Hex � ·20 Nylok
1
31
5175
Gear - Pinion - Splined
*63
3577
Baat
1
32
936131
Snap Ring - I " Shaft
*64
1001
Knob
1
2
el
2
50
3902
Drum - Brake
1
2
51
937022
Key # 1 5 Woodruff
I
H
2
52
4437
Ass'y. Brake Band & Lining
1
53
908002-4
Bait - Hex �.20 x Ye
2
.l...
_
..
_
_
_
L-_
_
_
____ ._. ____
_'--
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2
-.
_
_ _
*Not included in 5058 Auembly.
- 26 -
Section I I I
5060 6·SPEED TRANSM ISSION
DESCRIPTION
-M
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The 6-speed tra nsmission is an a l l-gear transmis
sion uti lizi ng sliding gears and spli ned shafts for easy
shifting. All shafts operate on needle or ball bearings
supported by the tra nsmission case, which consists ot
R. H. a nd L.H. cast iron case halves, dowelled for
alig nment and bolted securely together.
The tra nsmission features high and low range se
lection. Low range provides an additiona l 4 to 1 re
duction in each of the 3 speeds forward a nd a l so re
verse.
RATIOS
Gear
1 st gear
2nd gear
3rd gear
Reverse
High Range
66.8
42.4
24.6
5 1 .5
267.2
1 69.6
98.4
206.0
to 1
to 1
to
to
ditions in which normal differential action would
tra nsfer power to the wheel with least traction.
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The 6-speed tra nsmission also incorporates a spur
gear type of li m ited slip differentia l . The limited slip
feature provides i ncreased traction under those con-
to 1
to
to
to
Low Range
Removal:
models, remove the fender a nd seat assemb ly, the
dust cover and instruction plate located just a head of
the shift levers.
Remove mid-mou nted or trailing attachments, or
h itches which might interfere with tra nsmission re
mova l . Support the tractor frame a head of the trans
mission just enough that the rear wheels no longer
carry any weight.
Remove the cap screws that fasten through the
bottom of the tool box i nto the top of the transmis
sion. Remove four ca p screws that go through the
fra me butt plate into the front of the transmission.
Lower the front of the tra nsmission, gu ide the shift
levers down between the frame rai ls, and roll the
tra nsmission and wheel assembly free of the tractor.
Drain lubricant, remove wheels, and clean the trans
mi ssion as necessary before disassem bling.
se
Remove the R.H. foot rest, if so eq ui pped, belt
guard and belt. Disconnect the brake rod or remove
the brake band from the a nchor bracket. On most
or
H
These basic i nstructions a pply to a l l tractors
equi pped w ith 6-speed tra nsmissions. Deviate from
them as necessary for any particu lar tractor.
I nsta lIation:
Remove the pi lot studs one at a time, replacing
them with ca p screws. Tighten all six cap screws se
curely. Connect brake l inkage. I nsta l l dust cover, in
struction plate, fender and seat assembly, drive belt,
belt guard, foot rest, etc.
om
I nsta l l i nput pul ley, axle h ubs and wheels. Move
the tra nsmission assembly i nto place and guide the
sh ift levers up between the frame rails. Align the
pi lot studs with the corresponding holes in the frame
butt plate and push the tra nsm ission firmly agai nst
the plate. I nsta l l ca p screws i n the top of the trans·
mission and the open holes at the front and tig hten
them u ntil snug.
-c
NOTE: It is recom mended that two pilot studs be
used to facilitate tra nsm ission insta l lation. To make
the studs, cut the heads off ot two Ya"- 1 6 x 2" hex
head or carriage bolts. Grind a taper on the un
threaded end of each bolt. Screw the studs i nto diag
ona l ly opposite upper and lower tapped holes in the
front of the tra nsmission case.
Fill the transmission to proper level with S.A.E. 90
gear oil. Remove su pport from beneath tractor fra me.
Test tractor operation.
- 27 -
5060 6-SPEED TRANSMISSION
6.
Disassembly:
1.
Remove axle hubs and in put pul ley.
2.
Pl ace the transmission assembly in a vise or
suitable holding fixture, as shown in Fig ure 1
(shown with levers, brake band, brake drum,
hubs, and i n put pul ley removed).
Remove the bra ke drum retaining ring a nd
remove the brake drum using a suitable puller
as r,eq uired.
7. Remove paint and burrs from both axle sh afts,
brake shaft a nd the inut shaft.
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8.
Re move the six (6) Va" x 16 bolts and nuts that
retai n the right hand and left hand cases.
9.
Remove the left hand case leaving a l l gears
intact, as shown in Fig ure 2.
1 0.
Lift out the axle and differential assembly. Note:
If only the differential is to be overhauled, the
transmission section need not be further di s·
assembled. Refer to Differential Overhaul Section.
1 1 . Shift the 2nd and high shift fork assembly up
FIGURE 1
3.
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i nto the 2nd speed position. See Figure 3 .
Place the shift lever in neutral a nd pull the shift
lever rubber boot from the transmission boss.
Loosen the shift lever retaining lock nut and set
screw and remove the shift lever.
Remove the roll
range lever.
S.
Remove the
and remove
pi n a nd remove the high-low
two (2) brake band retain ing bolts
the brake band.
1 2.
Remove the cluster gear assembly, the brake
shaf, assem bly and the reverse idler gear a nd
shaft.
13.
Remove the spline d pinion gear from the input
shaft.
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4.
FIGURE 3
1 4. With a screw driver or other suitable tool remove
the plug from the detent passage, as shown in
Figure 4.
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FIGURE 4
FIGURE 2
-
28
-
1 5.
Place the shift forks in neutral and remove the
low a nd reverse shift rai l a nd fork assembly (the
one nearest the end of the case) together with
the low and reverse sliding gear, making sure
to catch the stop ball a nd other detent parts
as the shift rail is removed.
Remove the 2nd and high shift rai l a nd fork
assembly together with the 2nd a nd high sliding
gears.
17.
Remove the remai ni ng detent parts - ball, spring
and stop pin from the detent passage.
1 8.
Remove the gear a nd spline assembly from the
i nput shaft. Figure 5 .
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1 6.
Remove the detent bolt from the shift fork being
careful to catch the stop ball a nd spring.
24.
Remove the reduction gear shaft (Figure 7) by
driving it out toward the i nside of the case, and
remove the reduction gear.
25.
Remove the high- low range shift lever and shaft
a ssembly from the inside of the case.
FIGURE 7
Need le Bea ring Replacement:
If need le bearings are to be replaced they should
be removed and insta l led with suitable arbors.
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FIGURE 5
23.
Remove the input shaft. Figure 5.
20.
Remove the sliding gear from the high -low
range shift fork assembly. Fig ure 6.
21.
Remove the input shaft to case thrust washer.
The cluster gear may be disassembled as shown
in Figure 8. Disassemble and assemble carefu l ly to
avoid da mage to the Woodruff keys and b ushings.
The cluster gea r bushings may be removed and in
stal led using suitable a rbors.
or
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1 9.
Cluster Gear:
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------
'.
-
.
---
-- ---
-..._. -.,.
..
-
-
-
-
.
FIGURE 8
FIGURE 6
22.
Remove the high- low range detent bolt and shift
fork assembly. Figure 6.
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C leaning, Inspection, Bea ring and
Thoroughly clean a l l parts and inspect for damage
ings. Always renew a l l oi l sea ls and gaskets.
- 29 -
5060 6·SPEED TRANSMISSION
Assembly:
1 . I nsta l l the hig h-low range shift lever (Figure 9)
in the hole of the right case below the shift rail
su pports.
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FIGURE 11
'
Lift u p on the reduction gea r and slide .the i nput
sha ft thrust was her i nto position. Fig ure 1 2.
7. I nstil l l the sliding gear into the high-low range
fork with the groove down. Figure 1 2 .
6.
FIGURE 9
Position the reduction gear assembly i n place
with the large gear down and i nsert the reduc
tion gear shaft, driving it i n place from the
i nside of the case, as shown in Figure 9.
3. Assemble the high and low range shift fork
assembly (Fig ure 1 0) by i nserting the spring and
ball i n the detent hole. Using a K," p unch, press
on the ball, compressing the spring. At the same
time insert the detent bolt, withdrawing the
punch as the bolt slides in pl ace.
2.
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FIGURE 12
I nsta l l the input shaft, sliding it down through
the high-low range sliding gear a nd thrust
washer. Fig ure 1 3 .
9. I nsta ll the gear and spline assembly over the
input shaft, sliding the spline down through
the �Iiding gear. Figure 1 3 .
8.
- 30 -
m
4. Position the detent bolt and shift fork so that
the slot of the high and low range shift lever
engages the shift. fork (Figure 1 1 ) and thread
the bolt in place until it seats securely against
the shoulder. Torque the detent bolt to 1 2- 1 7
ft. Ibs.
5. Using a K," punch to move the h igh.low range
shift lever, check the operation of the detent and
fork assembly.
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FIGURE 10
or
k!>I:l
FIGURE 1 3
1 0.
11.
Install the 2nd and h igh shift rail and fork as
sembly (the one with the unequally spaced deten t
grooves) together with the 2nd and high sliding
gear (the smal ler of the two sliding gears). T he
sl iding gear fits down over the input s haft with
the sh ift fork groove up.
1 4.
S.hift the 2nd and h igh sh ift rail and fork assem·
bly into 2nd speed position.
15.
I nstall the reverse idler gear shaft and gear as
sembly making sure the shoulder of the gear
goes down. Figure 1 6.
Install one of the stop balls, stop spring and
stop pin into the detent passage.
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FIGURE 1 6
FIGURE 1 4
1 2.
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Install the 2nd sfop ball and using a punch,
push the ball in against the spring. Move the
installed shift rail into the neutral position and
continue to push on the punch (F igure 14) until
the ball is flush with the shift rail bore. At the
same time insert the low and reverse shift rai l
and fork assembly together with the low and
reverse sliding gear, (F igure 15) removing the
punch as the shift rail passes the ball. See de
tent drawing Figure 17. Note : The low and re
verse gear fits down over the input shaft with
the shift fork groove down.
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-------- -------
FIGURE 1 7
FIGURE 1 5
13.
Install the splined pinion gear.
1 6.
-31 -
Install the brake shaft gear.
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FIGURE 19
FIGURE 1 8
1 7.
Insta l l the cluster gear assembly. See Figure 1 8.
23.
1 8.
I n sta l l the differentia l a nd axle assembly with
the long end cap a nd the retaining bolt nuts
down into the right hand case. Figu re 1 9.
I nsta l l the high-low range selector lever and
retain with the �6" rol l pin.
24.
Recheck for a free neutra l and proper operation
in a l l gears and ranges.
25.
I nsta l l a new plug to sea l the detent passage
and d rive it in flush with the case.
26.
I nsta l l the brake shaft Woodruff key and insta l l
the brake drum. I nsta l l the brake drum retaining
sna'p ring.
1 9.
Recheck for proper asse mb ly, a free neutra l a nd
proper operation in a l l gears in both ranges.
P l ace the shift forks in neutral position.
I nsta l l a new case gasket holding it in place
with gasket sealer and insta l l the left hand case.
21.
I n s tal l
the six (6) :Va" x 1 6 bolts and nuts and
tig hten a l l bo lts e v e nly to avoid d i st ort ion.
22.
I n stall the s h i ft lever assembly and reta i n with
the set screw and lock n ut. I nsta l l gear shift
lever ru bber boot.
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20.
27.
L I M ITED S L I P DI FFERENTIAL
H
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I nsta l l the brake band and secure with the two
reta i n i ng bolts.
2.
NOTE
Disassembly:
1 . Remove the five (5) bolts, n uts and flat washers
that retai n the end caps to the differential ring
gear. Note that the nuts are on the right hand side
next to the right hand end cap. Note also that the
right hand end cap and right hand axle are longer
than the left hand end cap and left hand axle.
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or
See Service Bulletin number 252 for conver
sion of limited slip dlHerentlal to 8-plnlon
dlHerentlal.
Remove the axles a nd end caps by pu l ling the ax
les in a nd out to free the end caps from the rol l
pi n s. Caution. do not pry u nder the edge of the
e nd caps.
FIGURE 2
3.
Remove the ten ( 1 0) differential p i n i ons and the
cyl i ndrica l spring from the differential bodies.
4.
Press the two (2) differential bodies from the dif
ferential ring gear.
The right and left differential bodies are iden
tical with rol l pins located next to two (2) bolt
holes. Figure 4.
FIGURE 1
- 32 -
The matching rol l pin holes i n the left hand
end cap are a lso located next to the bolt holes,
but in the right hand end ca p they are between
bolt holes as shown in Figure 6.
5.
Remove the end caps a nd thrust washers from
each axle.
6.
The axle gears may be removed after removing
the retaining snap rings.
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FIGURE 5 shows the d ifferential parts in relation
tQ each other. Note, that the right hand end cap
a/1d axle is noticeably longer than the left hand
end cap a nd axle.
----,-._---
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L I M ITED S L I P DI FFERENTIAL
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Assembly:
1. I nsta l l the axle gears on the axles and insta l l
the retaining s n a p rings.
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2.
Place the axle gear to end cap thrust washers
on the axles next to the axle gears at:ld i nsta l l
the respective e n d ca ps on the axles. Note that
the right hand axle and the hub of the right
hand end cap is longer than the left hand axle
and left hand end cap.
3.
Using the left hand case as a worksta nd, place
the right hand (long) axle and right hand end
ca p (long) assembly in the axle housing. Figure
6.
FIGURE 3
FIGURE 4
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FIGURE 6
4. Align the roll pins with their respective holes
a nd seat one of the bodies in place on the end
ca p. Refer to Figure 7.
5. I nsta l l the ten (10) d ifferential pinions in their
respective bores. Refer to Figure 7.
6.
FIGURE
Hold the cylindrical spring with suitable pliers,
as shown in Fig ure 7 and com press the spring,
i nserting it in the center of the pinions, seating
it down agai nst the axle gear.
1. Position the differential ring gear over the body.
After careful al ignment press the gear down over
the body until it seats on the end cap. Fig ure 8.
5
-
33
-
8. With the rol l pins up, a lign the rema i n ing body
1 0.
with the pinions and usi ng a plastic ha mmer or
hard wood block carefu l ly ta p the body into
the differe ntial ring gear until it seats against
the other body. Figure 9.
I nsta l l the five (5) rema ining bolts and nuts,
placing a flat washer next to each end ca p,
placing the nuts on the side of the long end ca p.
Figure 1 0.
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FIGURE 9
FIGURE 7
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9.
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FIGURE 8
FIGURE 1 0
Align the rol l pins and i nsert the left hand axle
and end cap assembly, seating it in the d iffer·
ential ring gear.
1 1.
Torque bolts evenly t o avoid distortion o f the
end caps. Torque to 20 ft. I bs.
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- 34 -
I
Co)
(.It
5060 Transmission
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5 060 TRANSMISSION PARTS LIST
When ordering
parts
always
list
Part No. and
name
of
part.
(Specifications subject to change without notice.)
Port
No.
No.
1
7066
Case -
2
1 533
Bearing Ball
3
1 532
4
I��;;' I
No.
Req'cI.
D.scrlption
��
I
Port
No.
Description
No.
Req'd.
1
42
5 1 73
Gear - Hi and 2nd
2
43
5 1 74
Gear - Low ond Reverse
learing - Needl. 1" I.D.
1
«
56 1 5
Rail
1 542
learlng - Needl. �" I.D.
1
45
56 1 6
Ran - Rear Shift
5
1 526
lea ring - N•• dl. 1 � "
2
46
3503
Fork - Shift
2
6
1 529
Bea ring - N•• dl. � I.D.
2
47
93 3 1 56
Roll Pin � x
2
7
1461
Seal - Oil � Shaft
1
'8
561 4
Pin - Shift Stop
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8
I.H.
1}�
I.D.
1.0.
au 1 � Shaft
-
Front Shift
Seal
2
49
3525
Gear - C luster
Pin - Dowel
2
50
1 50-4
Bea ring - B�anz. 3:'c I.D.
694 1
Co .. - LH.
1
51
3528
Gear
Reduction Pinion
1 530
lea ring - N••dl.
1
52
3527
Gear
Reduction
1531
Bearing - Needl. � I.D.
1
53
3910
Shaft - Clu.ter Gea r
1 232
Seal - Oil
1
54
9370 1 4
Key #9 Woodruff
7 1 94
End Cap It.H.
1
55
4204
7 1 95
End Cap LH.
1
56
1516
Buihing - 8ronze Yz "
7 196
Gear - Differ.ntlal Ring
1
57
3909
Shaft
7197
Gear - Axl.
2
58
-4 1 66
Gear - Brake Shaft
18
7 1 98
Gear -
10
59
3902
Drum - Brak.
19
7 1 99
Washer - Thrust
2
60
937022
Key
20
9081 38-4
Bait � . 1 6
.5
61
9361 3 1
Snap ring
21
9 1 5663-4
Nut - Elastic Stop � . t 6
.5
62
7376
AII'y.
22
920009.4
Wash.r - Flat � SAE
10
63
908002....
Iolt - Hex �.20
23
7202
Axle - Rear R.H.
1
64
920081 ....
Lockwosh.r � " Dla.
2 ..
7203
Axl. - Rear
1
65
943460
Plug � Pipe
25
7 1 69
Snap Ring - Heavy Duty - Ext.mal
2
66
943420
Plug Y. Pipe
26
7201
Shaft - Input
1
39 1 2
Gask.t
720-4
Gear
& Spline
67
27
1
28
1518
68
Bearing - N.edle �
9080"3--4
Bait Hex
29
5 1 75
Pinion Gear
69
908038-4
Bolt Hex y' . t 6 x 2
5
30
7205
Gee r - Sliding
70
9 1 51 1 3-6
Nut y' · 1 6 Nylok
6
31
7206
Gear - R..auction
1
71
943322
Nipple y. Pipe x
32
7207
Bearing - NHdie � I.D.
2
72
9-43003
Coupling � Pipe
Shaft - Reduction Gear
1
73
74 1 8
Thrust Wash.r
74
1 243
Plug
75
10
11
12
13
14
15
16
17
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3915
9
Differential
3�
I(
Pinion
4
& Splin.
1
7209
AII'y. Shift Fork
1
35
351 7
Ball - Stop
3
1.0.
# 15 Woodruff
," Shoft
Brake
& Lining
Bond
X Ya
5632
Ass'y. Shift Stick
76
1 239
Set Screw � -20 x 3:'c Dog Point
77
9 1 51 1 1 .4
Nut Hex X-20
3577
Boot
351 8
Spring - Stop
2
37
72 1 3
Iolt - Det.nt
1
38
72 1 4
Lever - Shift
1
78
39
7200
Body
2
79
1 00 1
Knob
-40
933209
Roll
,
80
72 1 7
An'y. Handl. - Shift
81
933 1 84
Roll Pin �, x
41
7235
-..L._
. _
._
_
Pin
Spring - Cylindrical
-+-_
_
_._ ............_...
_
_
---'-
__
_
_
_
_
*Not I ndueled
- 36 -
2
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36
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3-4
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1.0.
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7208
I " Shaft - Brake
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33
I " I.D.
2
in No. � Assembly.
2
�
Section IV
4·SPEED U N I DRIVE
DESCRIPTION
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The 4-speed unidrive tra nsmission is an all-gear
transmission util izing sliding gears and spli ned shafts
for easy shifti ng. All shafts operate on needle or ball
bea rings supported by the transmission case. The
transmission case consists of R.H. and l.H. cast iron
case ha lves which a re dowelled for a l ignment and
bolted securely together.
Fill the transmission to proper level with S.A. E. 1 40
A. P.I. Service Gl-5 gea r oi l . Remove support from
beneath tractor frame. Test tractor operation.
--,,�.--�----
RATIOS
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.
66.8
42.4
24.6
5 1 .5
4·SPEED
to
to
to
to
U N I DRIVE TRAN SM ISSION
Disassembly:
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1 st gear .
2nd gear
3rd gear
Reverse .
Connect brake linkage. I nsta l l dust cover, instruc
tion plate, fender and seat assemb ly, drive belt, belt
g uard, foot rest, etc.
These, i nstructions a pply to a l l unidrive models un
less i ndicated. A section a pplying only to specific
models w i l l be so identified.
Removal:
These basic instructions a pply to all tractors equ ip
ped with Unidrive transmissions. Deviate from them a s
necessary for any particular tractor.
1.
Remove axle hubs and input pulley.
2.
Place the transmission assembly in a vise or
suitable holding fixture, as shown in Figure 1 .
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Remove mid-mounted or trailing attachments, or
hitches which might i nterfere with transmission re
mova l. Support the tractor frame a head of the trans
mission just enough that the rear wheels no longer
carry any weight.
Installation:
NOTE: It is recommended that two pilot studs be
used to facilitate tra nsmission i nsta l lation. To make
the studs, cut the heads off of two Ye"- 1 6 x 2" hex
head or ca rriage bolts. Grind a taper on the un
threaded end of each bolt. Screw one stud into one
of the upper holes in the front of the tra nsmission
case. Put the other one in the diagona l l y opposite
lower hole.
Insta l l in put pul ley, axle hubs and wheels. Move
the tra nsmission assembly into place and guide the
shift lever up between the frame rails. Align the pi lot
studs with the corresponding holes in the frame butt
plate and push the tra nsm ission firmly in place against
the plate. I nsta l l ca p screws in the top of the trans
mission and the open holes in the front, and tig hten
them until snug. Remove the pi lot studs one at a ti me,
replacing them with cap screws. Tig hten a l l six ca p
screws securely.
- 37 -
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Drain lu bricant, remove wheels, and clean trans
mission as necessary before disassembling.
or
Remove two ca p screws that fasten through the
bottom of the tool box into th e top of the tra nsm is.
sion. Remove four cap screws that go through the
frame butt plate into the front of the tra nsm ission.
lower the front of the transmissio.n, guide the shift
lever down between the frame rails, and rol l the
transmission and wheel assembly free of the tractor.
H
el
Remove the R.H. foot rest, if so equi pped, belt
guard, and belt. Disconnect the brake rod or remove
the brake band from the anchor bracket. On most
models, remove the fender and seat assembly. If
necessary to gain clea rance, remove the dust cover
and instruction plate located just ahead of the shift
lever.
FIGURE 1
3.
Place the gear shift lever in neutra l and pull the
gear shift lever rubber boot away from the trans
mission boss. loosen the gea r shift lever retaining
loc k nut and set screw and remove the gear shift
lever.
4.
Remove the two (2) brake band retaining bolts
and remove the brake band.
5.
Remove the brake drum retaining bolt and wash
'
er, and remove the brake drum. (See Figure 2).
6.
Remove the six (6) Ye" x 1 6 bolts and nuts that
reta in the right hand and left hand cases.
7.
Remove pa int and bu rrs from both axle shafts,
brake shaft, and the input shaft.
8.
Remove the left hand case, as shown in Figure 3.
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FIGURE 4
FIGURE 2
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lift out the axle and differentia l assembly. �igure
4. Note: If only the d ifferential is to be over
hau led the tra nsm ission need not be further dis
assemb led. See Differential Overhaul Section.
1 0.
Shift the 2 nd and high shift fork assembly up
into the 2 nd speed position. See Figure 5.
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9.
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FIGURE 5
Remove the spli ned pi nion shaft and gear. At
the same time the cl uster gear and b ra ke shaft
asse mbly may be removed. See Figure 5.
1 2.
Remove the large pin ion and reduction gear a s
sembly, (a nd the thrust wa sher if used) and the
reverse idler gear. See Figure 6.
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1 1.
NOTE: Prior to 1 973 models the pinion reduction
g'e ar and thrust washer was welded together and
was serviced as one part.
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Sta rti ng with the 1 973 models the pinion, reduc
tion gear and thrust washer a re serviced sepa
r¢ltely. The thrust washer goes on the stub shaft
next to the big gear.
The pinion may be pressed in and out of thf
g'e ar with a suitable arbor press.
1 3.
FIGURE 3
- 38 -
Remove the 2 nd a nd high sliding gear and the
low and reverse sliding gea r, as shown in Figure
7.
Place the sh ift forks in neutral and remove first
the low and reverse s hift rail and fork assembly,
then t he 2nd and high sh ift rail and fork assem·
bly, being careful not to lose the two stop balls,
spring and stop pin as they are released. Fig
ure 8.
1 5.
Remove the reverse idler shaft and the input
s h aft and gear. See Fig ure 9. Note: T he reverse
idler shaft may sometimes stick in the left hand
case.
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1 4.
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FIGURE 9
FIGURE 6
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FIGURE 1 0
FIGURE 7
1 6.
If i t i s desired to replace t he case bearings they
may easily be removed and installed wl th suit
able arbors. When replacing beari ngs they should
b� pressed in so that t hey are flush with the
in;side of the case, as shown in Fig ure 1 0.
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FIGURE 1 1
FIGURE 8
- 39 -
1 7.
T h e cluster gear and brake shaft assembly may
be disassembled, as shown in Figure 11. Dis
assemble and assemble carefully to avoid dam
age to the woodruff key and bushings. The
cluster gear bushings may be removed and in
stalled using suitable arbors.
1 8.
With a screwdriver or other suitable tool remove
the plug from the end of the detent passage.
3.
Install one stop ball, spring and stop pin. Refer
to detent drawing and Figure 14.
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Cleaning, Inspedion, Bearing and
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Thoroug hly clean all parts and inspect for damage
ings. Always renew all oil seals and gaskets.
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Assembly:
Place the right hand case in a vise or other suit
able fixture for assembly, as shown in Figure 12.
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FIGURE 1 2
4.
2.
Install the 2nd and high s hift rail and fork as
sembly (t he one with ' the unequally spaced detent
grooves.) See Figure 15.
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Install the input shaft and gear, and reverse idler
shaft� as shown in Figure 13.
Install the 2nd stop ball and using a punch push
the ball in against the spring. Move the 2nd &
high shift rail into the neutral position and con
tinue to push on the punch until the ball is flush
with the shift ra il bore. At the same time insert
th� low and reverse shift rail and fork assembly,
removing the punch, as the s hift rail passes the
ball. See Detent Drawing. Figure 14 and 15.
H
1.
FIGURE 1 4
RGURE l S
FIGURE 1 3
- 40 -
5.
Shift the 2nd a nd high sh ift fork into the 2 nd
speed position a nd i nsta l l the 2 n d and high
sliding gear, and the low and reverse sliding
gear in position on their respective forks, Figure
1 6. Note that the shift fork grooves of the sliding
gears face each other, and that the smaller of
the two gears is the 2nd and high gears which
goes on the bottom.
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FIGURE 1 8
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FIGURE 1 6
Pla<e shift forks i n neutral position and check
for a free neutra l and proper operation in a l l
gears.
1 0.
I nsta l l a new case gasket holding it in place
with gasket sealer and i nsta l l the left hand case.
1 1.
I nsta l l the six (6) Xu x 1 6 bolts a nd n uts and
tighten a l l bolts evenly to avoid distortion.
1 2.
I nstal l the shift lever a ssembly a nd reta in with
the set screw and lock nut. I nsta l l gear shift
lever rubber boot.
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6.
9.
Insta l l the reverse idler and the large pinion and
reduction gear assembly (a nd the thrust washer
if used), as shown in Figure 1 7, making sure that
the flanged end on the reverse id ler goes down.
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I nsta l l the spli ned shaft and gear through the
two spli ned sliding gears seating the bottom end
of the shaft into the input gea r bearing. See
Fig ure 1 8 . I nsta l l the cluster gear and brake shaft
assembly carefu lly seating it in its bearing and
meshing it with its re lated gears.
8.
I nsta l l the differential and axle assembly, <JS
shown in Fig ure 1 9, making sure that fou r (4)
n uts are up toward the L. H . case.
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7.
FIGURE 1 9
1 3.
Check agai.n for a free neutra l a nd operation i n
a l l gears.
1 4.
Insta l l the brake drum and secure with the bolt
and washer.
1 5.
I nMall the broke band and secure with the two
retaining bolts.
1 6.
I nstall a new plug to seal the detent passage and
drive it in fl ush with the case.
FIGURE 1 7
- 41 -
D IFFERENTIAL OVE RHAUL
4 PI N ION DIFFERENTIAL
NOTE: Two types of differential pinions a re used:
1 . Early type use hol low pinions with separate
shafts. See Figure 1 and 2 .
2 . Late type pinions a re one piece with integral
shafts. See Figure 1 A a nd 2A.
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Early type axles incorporate roll pin holes a nd
use rol l pins to secure the axle gears. See Figure
1 and 2 .
2. Late type axles i ncorporate snap ring g rooves
and use snap rings to secure the axle gears. See
Figure l A and 2A.
1.
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3.
Remove the axle shaft and gear from the case.
4.
Remove the differential bull gear.
5.
Note position of the four (4) pinions. Adjacent
pinions a re insta l led in opposite directions, which
make the position of the d iagonally opposite
pinions the same. See Figure 1 and 1 A.
6.
Remove the pinions (and shafts on the early
type), and remove the rema ining axle shaft and
gear from the case.
7.
The axle shaft gears may easily be removed by
driving out the roll pins or removing the snap
rings a s required.
Figure 2 & 2A are exploded views of the complete
4 pinion differentia l assembly.
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Disassembly:
Remove the four (4) reta ining bolts and nuts.
Lift off the differential side case together with
the axle shaft and gear.
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1.
2.
FIGURE 2
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FIGURE 1
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FIGURE 2A
DIFFERENTIAL
Assembly:
1.
If the axle gears were removed i nsta l l them on
the axles and insta l l the reta ining rol l pins or
snap rings as required.
Note: I nstall the snap rings with the sharp side
of . the snap ring toward the i nner end of the
axles.
FIGURE l A
-
42
-
2.
Insta l l one of the axle and gear assemblies i n
the differential case and on the early type insta l l
t h e four (4) pi nion shafts.
3.
Insta l l two (2) pinions with their teeth up diag
onally opposite each other, and insta l l ! he other
two (2) pinions with their teeth down diagonally
opposite each other. See Fig ure 1 and 1 A.
4.
I nsta l l the differential bul l gear.
5.
I nsta l l the remaining axle and gear assembly i n
the remaining differential case.
6.
Position the axle a nd gear, a nd differential case
over the pinion shafts, mesh the gears a nd seat
the case agai nst the ring gear.
7.
Center the bull gear a nd insta l l the four (4) re
tai ning bolts, and nvts. Tig hten securely and
evenly to avoid distortion.
4-SPEED TRANSMISSION
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2·1 7
_
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2· 1 1
2· 1 0
2·47
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2· 1 6
2· 1 5 --_
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2·28
2.2 5
,." c/"
2·S]
2·45
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2·20
2·16
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2·2 1
O N E PIECE (SOLID PINION) DIFFERENTIAL
TWO PIECE (PINION & SHAFT) DIFFERENTIAL
- 43 -
4·SPEED TRANSM ISSION
ITEM NO.
2-1 0
R. H. Case
L. H. Case
Ball Bearing, 1 X" I. D.
Needle Bearing, 1 " I. D.
Needle Bearing, �" I. D.
Needle Bearing, 1" I. D.
Needle Bearing, �" I . D.
Oil Seal, �" Shaft
Oil Seal, 1 " Shaft
Dowel Pin
Needle Bearing, .�" I. D.
Needle Bearing, Ya" I . D.
Differential Case
Differential Case
Differential Bull Gear
Differential Pinion Gear
Differential Pi nion Gear
Shaft
Axle Gear
Axle
Axle Snap Ring
Input Gear
Needle Bearing, Ya" I. D.
Hi a nd 2nd Gear
Spline Shaft
Snap Ring, %"
Low and Reverse Gear
Splined Pinion Gear
Front Shift Rail
Rear Shift Rail
Shift Fork
Shift Stop Ball
Shift Stop Spring
Shift Stop Pin
Cup Plug
Cluster Gear
Bronze Bearing, �" I. D.
Reduction Gear
Cl uster Gear/Brake Shaft
Reverse Idler Gear
Bronze Bushing, X" I. D.
Gear, 44 Teeth
Gear, 1 1 Teeth
Thrust Washer, 1 " I. D.
Case Gasket
Shift Stick Assembly
Set Screw, �-20 x �
Boot
Knob
2-28
2 -29
2-30
2-3 1
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2-32
2 -33
2-34
2-35
2-36
2-37
2-38
2-39
2-40
2-41
2-42
2-43
2-44
2-45
2 -46
2-47
2-48
2 -49
2-52
2-53
2-54
2-55
2-56
H
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2-1 1
2- 1 2
2-1 3
2�1 4
2- 1 5
2-1 6
2- 1 7
2- 1 8
2-20
2 -2 1
2-22
2-22A
2-23
2-24
2-24A
2-25
2-26
2-27
DESCRlnlON
Section V
I·SPEED TRANSM ISSION
Remove the pilot studs one at a ti me, replacing
them with ca p screws. Tighten all six ca p screws se
curely. Connect brake linkage. I nsta l l dust cover, in
structio'n plate, fender and seat assembly, drive belt,
belt gJard, foot rest, etc.
DESCRIPTION
The 8-speed tra nsmission is an all-gear transmis
sion uti l izing sliding gears and spli ned shafts for easy
shifting. All shafts operate on needle or ba l l bearings
supported by the tra nsmission case, whiCh consists of
R. H. a nd L. H. cast iron case halves, dowelled for
alignment and bolted securely together.
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Fill the tra nsmission to proper level with S.A. E. 1 40
A. P.1. Service GL-5 gear oil. Remove support from
beneath tractor frame. Test tractor operation.
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The transmission features high and low range se
lection. Low range provides an additional "" to 1 re
d uction in each of the 3 speeds forward and a lso re
verse.
High Range
I·SPEED TRANSM ISSION
Low Range
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Gea r
RATIOS
1 st gear
2nd gear
3 rd gear
Reverse
66.8
42.4
2 4.6
5 1 .5
to 1
to 1
to 1
to 1
267.2
1 69.6
98.4
2 06.0
to
to
to
to
1
1
1
1
Disassembly:
1.
Remove axle hubs a nd in put pul ley.
2.
PI(:Ice the tra nsmission assembly in a vise or
suitable holding fixture, as shown in Figure 1
(shown with levers, brake ba nd, brake drum,
hubs, a nd input pul ley removed).
Removal:
These basic i nstructions a pply to all tractors equip
ped with 8-speed transmissions. Deviate from them
as necessary for any partiCular tractor.
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Remove mid-mounted or tra il i ng attachments, or
hitches which might i nterfere with transmission re
mova l. Su pport the tractor frame a head of the trans
mission j ust enough that the rear wheels no longer
carry any weight.
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Remove the R. H . foot rest, belt guard and belt.
Disconnect the brake rod or remove the brake band
from the a nchor bracket. Remove the fender a nd seat
assembly, the dust cover and i nstruction plate located
just a head of the shift levers.
Installation:
NOTE: It is recommended that two pilot studs be
used to facil itate tra nsmission insta llation. To make
the studs, cut the heads off of two %"- 1 6 x 2" hex
head or carriage bolts. Grind a taper on the u n
threaded end of each bolt. Screw the studs into diag
ona lly opposite u pper and lower tapped holes i n the
front of the transmission case.
FIGURE 1
I nstall input pulley, axle hubs a nd wheels. Move
the transmission assembly into place and guide the
shift levers up between the frame rails. Align the
pi lot studs with the corresponding holes in the frame
butt plate a nd push the transmission firmly against
the plate. I nsta l l ca p screws in the top of the trans
mission and the open holes at the front and tighten
them until snug.
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Remove the ca p screws that fasten throug h the
bottom of the tool box into the top of the transmis
sion. Remove four ca p screws that go through the
frame butt plate into the front of the tra nsmission.
Lower the front of the transmission, guide the s hift
levers down between the frame rails, and roll the
tra nsmission · and wheel assembly free of the tractor.
Drai n l ubricant, remove wheels, a nd clea n the trans
mission as necessary before disassembling.
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3.
Place the shift lever i n neutra l and pull the shift
lever rubber boot from the tra nsmission boss.
Loosen the shift lever retaining lock nut and set
screw and remove the shift lever.
4.
Remove the rol l pi n and remove the high-low
range lever.
5.
R�move the two (2) brake band retai ning bolts
ahd remove the brake band.
rately. The th rust washer goes on the stub shaft
next to the big gear. The gear and pinion may
be pressed in and out of the gear with a suitable
arbor press.
1 4.
Remove the splined pin ion gear from the input
shaft.
1 5. With a screw driver or other suitable tool remove
the plug from the detent passage, as shown in
Figure 4.
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FIGURE 2
Remove the brake drum retaining bolt and wash
er, and remove the brake drum using a suita ble
pu l ler as required.
7.
Remove paint and burrs from both axle shafts,
brake shaft and the input shaft.
8.
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6.
Remove the six (6) %" x 1 6 bolts and nuts that
retain the right hand a nd left hand cases.
Remove the left hand case leaving all gears
intact, as shown in Fig ure 2.
1 0.
lift out the axle and differential assembly. Note:
If only the differential is to be overhau led, the
transmission section need not be further dis
assembled. Refer to Differentia l Overhaul Section.
11.
FIGURE 4
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9.
Place the shift forks in neutra l and remove the
low and reverse sh ift ra il and fork assembly (the
one nearest the end of the case) together with
the low and reverse sliding gear, making sure
to catch the stop ball and other detent parts
as the shift ra i l is removed.
1 7.
Remove the 2nd and high shift rail and fork.
assembly together with the 2nd and high sliding
gears.
1 6.
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Shift the 2nd and high shift fork assembly up
into the 2nd speed position. See Fig ure 3.
Remove the rema ining detent parts - ball, spring
and stop pin from the detent passage.
1 9.
Remove the gear and spline assembly from the
input shaft. Figure 5.
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18.
fiGURE 3
Remove the cluster gear and brake shaft assem
bly, and the reverse id ler gear and shaft.
1 3.
Remove the large reduction gear assembly.
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1 2.
NOTE: Prior to 1 973 mode ls the pinion reduction
gear and thrust washer was welded together and
was serviced as one part.
Starting with the 1 973 models the pinion, reduc
tion gear and th rust washer are serviced sepa-
FIGURE 5
20.
- 46 -
Remove the input shaft. Figure 5.
21.
Remove the
sliding gear from the
high-low
22.
range shift fork assembly. Figure 6.
Remove the input shaft to case thrust washer.
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FIGURE 8
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Thoroug hly clean a l l parts and inspect for damage
and wear. Use suitable arbors when re placing bear
ings. Always renew a l l oil sea ls and gaskets.
FIGURE 6
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Remove the high- low range detent bolt and sh ift
fork assembly. Figure 6.
24.
Remove the detent bolt from the sh ift fork being
careful to catch the stop ball and spring.
25.
Remove the reduction gear shaft (Figu re 7) by
driving it out toward the inside of the case, and
remove the reduction gear.
26.
a·SPEED TRANSMISSION
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23.
Assembly:
Remove the high- low range sh ift lever and shaft
assembly from the inside of the case.
1.
FIGURE 7
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I nstal l the high-low range shift lever (Figure 9)
in the hole of the right case below the sh ift roi l
supports.
FIGURE 9
Need le Bearing Replacement:
Cluster Gear:
The cluster gear and brake shaft assembly may be
disassembled as shown in Fig ure 8. Disassemble and
assemble carefully to avoid damage to the Woodruff
key and bushi ngs. The cluster gear bushings may be
removed and instal led using su ita ble arbors.
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2.
Position the reduction gear asse mbly in place
with the large gear down and insert the reduc
tion gear shaft, driving it in place from the
inside of the case, as shown in Figure 9.
3.
Assemble the high and low range sh ift fork
assembly (Figure 1 0) by inserting the spring and
bal l i n the detent hole. Using 0 K6" punch, press
on the ball, compressi ng the spri ng. At the same
time insert the detent bolt, withdrawing the
punch as the bolt slides in place.
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If needle bearings are to be replaced they should
be removed and in sta l led with su itable arbors.
7.
I nsta l l the sliding gear into the high-low ra nge
fork with the groove down. Figure 1 2.
8. " I nsta l l the input shaft, sliding it down through
the hig h-low range sliding gear and
washer. Figure 1 3.
9.
•
thrust
I nsta l l the gear and spline assembly over the
input shaft, sliding the spl i ne down through
the sliding gear. Figure 1 3 .
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FIGURE 10
Position the detent bolt and shift fork so that
the slot of the high and low range shift lever
engages the shift fork (Figure 1 1 ) and thread
the bolt in place u ntil it seats securely agai nst
the shoulder. Torque the detent bolt to 1 2 -1 7
ft. Ibs.
5.
Using a K6" punch to move the high-low ra nge
shift lever, check the operation of the detent a nd
fork assembly.
6.
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4.
Lift up on the reduction gear and slide the i nput
shaft thrust washer into position. FiglJre 1 2.
FIGURE 1 3
10.
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1 1.
Install the 2nd and high shift ra i l a nd fork as
sembly (the one with the unequally spaced detent
grooves) together with the 2nd and high sliding
gear (the smal ler of the two sliding gears). The
sliding gear fits dOWh over the input shaft with
the shift fork groove up.
FIGURE 11
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I nsta l l one of the stop bal ls, stop spring a nd
stop pin into the detent passage.
FIGURE 1 4
12.
FIGURE 1 2
- 48 -
I nsta l l the 2 nd stop ba l l and using a pu nch,
push the ball in against the spri ng. Move the
i nsta l led shift ra il into the neutra l position and
continue to push on the punch (Figure 1 4) until
the ball is flush with the shift rail bore. At the
sa�e time insert the low and reverse shift rail
an;:! fork assembly together with the low a nd
reverse sliding gear, (Figure 1 5) removing the
punch as the shift rail passes the ba l l . See de-
tent drawing Figure 1 7. Note: The Jow a nd re
verse gear fits down over the i n pu t shaft with
the shift fork groove down.
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FIGURE 1 5
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1 3 . I nsta l l t h e spl i ned pinion gear.
1 4. Shift the 2nd and· high shfft rail and fork assem
bly i nto 2nd speed position.
15. I nsta l l the l a rge p i n i on and reduction gear a s
1 6.
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se mbly (a nd the thrust washer if used).
I nsta l l the reverse idler gear shaft and gear as
sembly making sure the shou lder of the gear
goes down. Fig ure 1 6.
FIGURE 1 7
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FIGURE 1 6
FIGURE 1 8
1 7.
I n sta l l the cl uster gear and broke shaft assem
bly. See Fig ure 1 8.
2 1 . I n �ta l l the six (6) Ya " x 1 6 bolts a nd n uts a nd
m
ti � hten all bolts evenly to a void d i stortion.
I n sta ll the d ifferential and axle a sse mbly with
the reta i n i ng bolt nuts u p toward the left h a nd
case. Figure 1 9.
22. I n sta l l the shift lever assembl y and reta i n with
Recheck for proper assemb ly, a free neutra l and
proper operation i n all gears i n both ranges.
Place the shift forks in neutra l posi tion.
23.
I n sta l l the h i g h-low range
reta i n with the 3{6" rol l p i n .
20. I n sta l l a new case gasket holding i t in place
24.
Recheck for a free neutra l and proper opera tion
in a l l gears a n d ranges.
1 8.
1 9.
the set screw and
lever rubber boot.
w i th gasket sea ler a nd insta l l the left hand case.
- 49 -
lock
nut.
I nsta l l gear sh ift
selector
lever
a nd
3.
Remove the axle shaft and gear from the case.
4.
Remove the differential bull gear.
S.
Note position of the eight (8) pinions. Adjacent
pinions a re i nstal led in opposite diredions, which
make the position of the d iagonally opposite
pin ions the same. See Figure 1 .
6.
Remove the pinions a nd remove the remai ning
axle shaft and gear from the case.
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1. The axle shaft gears may easily be removed by
removing the snap rings.
Assembly:
1.
If the axle gears were removed, insta l l them on
the axles and install the snap rings with the sharp
side of the snap ring toward the inner end of the
axle.
FIGURE 19
25.
Insta l l a new plug to seal the detent passage
and drive it in flush with the case.
26.
Insta l l the brake drum and secure with the re
tai ning bolt and washer.
21.
Insta ll the brake ba nd and secure with the two
retaining bolts.
2.
I ns\al l one of the axle and gear assembl ies in the
differential case and insta l l the eight (8) pinions,
as shown in Figure 1 . Properly i nsta lled each
axle gear will mesh with four pinions.
NOTE
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8 PIN IO N DI FFERENTIAL
See Service Bulletin numbers 1 74 & 273 for Im
portant I nformation on differential bolts.
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Disassembly:
Remove the four (4) retaining bolts and nuts.
2.
Lift off the differential side case together with the
axle shaft and gear.
3.
Insta l l the differenti a l bull gear.
4.
I nsta l l the remaining axle and gear assembly in
the' remaining differential case.
5.
PO$ition the other axle, gear, and differential
cas� over the pinion shafts, mesh the gears and
seat the case against the ring gear.
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1.
FIGURE 2
6. Center the b u l l gear and insta l l the four (4) re
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tai ni ng bolts and nuts. Tighten securely and
evenly to avoid distortion.
FIGURE
- 50 -
8-SPEED, 10 PI N IO N
L I M ITED SLIP D I FFERE NTIAL
(Used in 5073 Transmission)
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3-79
-------_ .._-_. _ ---_.- ---
DESCRIPTION
ITEM NO.
---
Snap Ring
R. H. End Cap
l. H . End Cap
Ring Gea r
Axle Gear
D ifferential Pinion Gea r
Thrust Washer
Body
Roll Pin
Spri ng
R. H. Axl e
l . H . Axle
3-30
3-74
3-74
3-76
3 -77
3-78
3 -79
3 -80
3-81
3-82
3-86
3-86
-- --------- - -- --------.------
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NOTE
See Service Bul letin number 252 for conver
sion of limited slip dlHerentlal to 8-plnlon
dlHerentlal.
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8-SPE E D. 4 PIN ION D I FF�RENTIAL
111 AXLES
(Used in 5086 Transmission)
DESCRIPTION
_
Differe�tia l Case
Ring Gear
D ifferential Pinion Gear
Ax le Gea r
Axle
Snap �l_n�
_______. ____
_
- 51 -
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3 -22
3-23
3-24
3-27
3 -29
3-30
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ITEM NO_
3-22 ---.
or
1----
8-SPEED. 8 P I N ION DI FFERENTIAL
1.1/8" AXLES
(Used In 509 1 . 1 03907. 1 039 1 6 a. 1 039 1 8 Transml..lons)
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ITEM NO.
4- 1 9
4-20
4-22
4-24
4-25
4-27
DESCRIPTION
Differential Case
Axle
Snap Ring
Axle Gear
Ring Gear
Differential Pi nion Gear
----
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8·SPEED TRANSMISSION
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69
- 52 -
8·SPEED TRANSM ISSION
ITEM NO.
3- 1 0
3-3 1
3-32
3·33
3-34
3-35
3-36
3-37
3-38
3·39
3·40
J.·41
3-42
3-43
3·44
3-45
3·46
3-47
3·48
3-49
3-50
Case - R. H .
Case - l . H.
Ba l l Bearing 1 X" I . D.
Needle Bea ring 1" I . D.
Needle Bearing %" I . D.
Needle Bea ring 1 Ye " I. D.
Needle Bea ring %" I. D.
Seal - % Shaft
Seal - 1 Ye" Axle
Dowel Pin
Needle Bea ring %" I. D.
Needle Bearing %" I. D.
Seal - Brake Shaft
Differential Case
I nput Shaft
Thrust Washer
Gear a nd Spline
Needle Bearing %" I. D.
Gear a nd Spl ine Pinion
Sliding Gear
Reduction Gear
Needle Bearing %/r I. D. x X
Reduction Shaft
Shift Fork
Stop Ba l l
Stop Spri ng
Plug
Detent Bolt
Shift Lever
Gear - Hi and 2nd
Gear - Low a nd Reverse
Front Shift Ra i l
Rear Shift Ra i l
Shift Fork
Roll Pin, Ye x 1 "
Shift Stop Pin
Gear a nd Bearing, Complete
Cluster Gear
Bronze Bearing %" I. D.
Reduction Gear
Cl uster Gear a nd Brake Shaft
#9 Woodruff Key
Reverse Idler Gear
Bronze Bush i ng X" I. D.
Shaft
Nipple
Di pstick
Case Gasket
Shift Stick
Set Screw - Dog Point - X -20 x %
Nut, X-20
Boot
Knob
Shift Handle
Roll Pin �6 x %
Thrust Washer
Gear Assembly
Gear l l T
Gear 44T
3·71
3-72
3-73
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3·68
3·69
3 ·70
or
3·57
3·58
3·59
3-6 1
3-63
3-65
3·66
3-67
H
3-51
3·52
3-53
3-54
3·55
3-56
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3-1 1
3-1 2
3- 1 3
3-1 4
3- 1 5
3-1 6
3-1 7
J.· 1 8
3-1 9
3·20
3-2 1
DESCRIPTION
- 53 -
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WHEEL HORSE PRODUCTS. INC.
PRINTED IN U.S. A. 0482 Revision
PIN 492-4004
5 1 5 West Ireland Road. P.O. Box 2649
South Bend. Indiana 46610
FORM NO. A- 1 392

5047 - The Wheel Horse Tractor Manual and Documentation Website

Transcription

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