Detachable Gooseneck Models

Transcription

Detachable Gooseneck Models
P
Replacement Parts, Service Manual
and Operating Instructions
This manual covers
the following models:
B-35DTG
B-50DTG
B-55DTG
B-60DTG
Phone: 866-397-8481
Fax: 320-693-5703
Page 2
Table of Contents
Read and understand complete manual before using trailer.
Trailer Info./Warranty,
Truck Requirements,
Reporting Safety Defects
Terminology
Operation of
Trailer
Hub/Drum Assy's
Brake Assy's
Suspensions
Wheels and Tires
Air Systems
Hydraulic Systems
Electrical Systems
Goosenecks
Ramps
Miscellaneous
Replacement Parts
Decals
(Warnings and Cautions)
and other info.
Height Control Valve
Preventive Maintenance
Brake Adjustment
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4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
-
Trailer and Dealer Information
Truck/Tractor Dimensions
Truck Requirements/Operating Ranges
Big Tow Trailer Limited Warranty
Reporting Safety Defects
Trailer Terminology - Gooseneck
Trailer Terminology - Frame and Trunnion
Operation of Trailer
Operation of Trailer
Operation of Trailer
Operation of Trailer
Operation of Trailer
Operation of Trailer
Operation of Trailer
Hub/Drum Assembly, Stud Piloted
Hub/Drum Assembly, Hub Piloted
Brake Assembly, non ABS and ABS
Suspension, Spring (Hutchens)
Suspension, Air-Ride, Front Section (Ridewell)
Suspension, Air-Ride, Center and Rear Section (Ridewell)
Axle Lift
Pivot Bushing & Eccentric Bolt Replacement (Ridewell)
Alignment of Axle
Wheels and Tires
Safety Warnings - Tires
Safety Warnings - Tires
Safety Warnings - Tires
Air Brake System, Tandem Axle, 2S/1M
Air Brake System, Tandem Axle, 4S/2M
Air Brake System, Tri-Axle, 2S/2M
Air Brake System, Tri-Axle, 6S/3M
Air Brake System, Tri-Axle, Non ABS
Air Brake System Fittings
Air System, Gooseneck, 96" Swing Clearance
Tandem Axle Air Ride Suspension Air System
Tri Axle Air Ride Suspension Air System
Tri Axle Air Ride Suspension Air System with Lift on Rear Axle
Dual Hydraulic System, Wet Line and Pony Motor
Hydraulic System (Wet Line) 84" Swing Gooseneck, pg 1 of 2
Hydraulic System (Wet Line) 84" Swing Gooseneck, pg 2 of 2
Hydraulic System (Wet Line) 96" Swing Gooseneck, pg 1 of 2
Hydraulic System (Wet Line) 96" Swing Gooseneck, pg 2 of 2
11HP Honda Power Supply, Standard
Pony Motor Hydraulic/Mounting, 11HP Honda, pg 1 of 2
Pony Motor Hydraulic/Mounting, 11HP Honda, pg 2 of 2
Electrical System, Gooseneck
Wiring Harness
Lighting
84" and 96" Gooseneck Assemblies, Replacement Parts, pg 1 of 2
84" and 96" Gooseneck Assemblies, Replacement Parts, pg 2 of 2
Ramps, Springs and Cantilever
Hydraulic Ramp System
Fenders
5th Wheel Locking Assembly
5th Wheel Locking Assembly
Miscellaneous Parts
Removable King Pin
Decals (Warnings and Cautions)
Decals (Warnings and Cautions)
Decals (Warnings and Cautions)
Decals (Warnings and Cautions)
Decals (Warnings and Cautions)
Decals (Warnings and Cautions)
Decals (Warnings and Cautions)
Payload Ratings
Recommended Outrigger Loadings
Height Control Valve
Height Control Valve Replacement
Preventive Maintenance - Ridewell Suspension
Torque Specifications / Suggested Preventive Maintenance
Preventive Maintenance - Wheel Bearings
Preventive Maintenance - Wheel Bearings
Brake Disassembly / Assembly
Recommended Brake Adjustment Procedure
Fax: 1-320-693-5703
Page 3
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Printed 9/04
Trailer and Dealer Information
B-35DTG, B-50DTG and B-55DTG Owners Manual
Trailer Information
Model purchased:
Date purchased:
Serial Number:
Dealer Information
Dealer:
Address:
Phone:
Fax:
Please have serial number available for all orders.
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Page 4
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Truck/Tractor Dimensions
Dimension
Description
A=
Center of 5th wheel to end of frame
B=
Light (empty) frame height
C=
Light (empty) 5th wheel height
D=
Centerline of rear axle to end of frame
E=
Outside to outside of tires
F=
Center of 5th wheel to end of frame (corner)
G=
Center of 5th wheel to outer edge of rear tire
H=
Width of truck/tractor frame
Truck/tractor suspension:
Air
Spring
Truck suspension capacity:______________________
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Truck Requirements/Operating Ranges
P.S.I. - 2,500 to 3,000
G.P.M. - 25 maximum
Swing Clearance - See truck dimensions (page 5)
5th Wheel Height - 47" - 52" See truck dimensions (page 5)
Hydraulic Connections - See below...
Coupler
Nipple
Towmaster p/n 37-5972
Towmaster p/n 37-5971
COUPLER
BODY SIZE
THREAD SIZE (NPTF)
DIMENSION A (OVER-ALL LENGTH)
DIMENSION B (HEX SIZE)
DIMENSION C (LARGEST DIAMETER)
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3/4"
3/4-14
3.36
1.62
1.90
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NIPPLE
BODY SIZE
THREAD SIZE (NPTF)
DIMENSION D (OVER-ALL LENGTH)
DIMENSION E (EXPOSED LENGTH)
DIMENSION F (HEX SIZE)
DIMENSION G (LARGEST DIAMETER)
Page 6
3/4"
3/4-14
2.28
1.18
1.38
1.59
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Big Tow Trailer Limited Warranty
Big Tow Trailer warranties each new vehicle manufactured by us to be free from defects in material
and workmanship for a period of one year from date of delivery to the original purchaser.
Our obligation under this warranty is to replace free of charge, at our factories or at our dealers place
of business, any part proven defective within the time limit of this warranty.
Big Tow Trailer's warranty does not cover: (1) new products which have been operated in excess
of rated capacities, (2) misuse or accidents, (3) vehicles which have been altered, modified or
repaired in any manner not authorized by our company, (4) second hand or used vehicle. In no way
will Big Tow Trailer be held liable for consequential damages such as rentals of substitute
vehicles, loss of profits or other commercial losses.
Further, new vehicle tires are warranted by their respective manufacturers and are not warranted by
Big Tow Trailer.
Big Tow Trailer will handle disposition of warranties on all other purchased components such as
axles, suspensions, wheels, and other purchased parts in conjunction with their respective
manufacturers, and under the terms of their respective warranty policies.
Big Tow Trailer must receive immediate notification of a defect and no allowance will be made for
repairs without our consent or approval.
This warranty is in lieu of all other warranties, expressed or implied by law or otherwise, and there is
no warranty of merchantability or fitness of purpose.
Customer Registration Required
Federal regulations require motor vehicle manufacturers to maintain a record of original owners of their
equipment. Our warranty registration fulfills this requirement. Please make every effort to complete this
document.
Manufacturer reserves the right to modify, without notice, specific designs and specifications as
deemed advisable on the trailers described herein without obligation in regards to trailers previously
sold. The manufacturer also reserves the right to discontinue any model or models without obligation
in regards to trailers previously sold. Written warranty covers each trailer. No other warranty expressed
or implied is made. Warranty on tires and brakes through original manufacturer.
All dimensions approximate.
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Reporting Safety Defects
Reporting Safety Defects: If you believe that your vehicle has a defect which could
cause a crash or could cause injury or death, you should immediately inform the
National Highway Traffic Safety Administration (NHTSA) in addition to notifying Big Tow
Trailers.
If NHTSA receives similar complaints, it may open an investigation, and if it finds that a
safety defect exists in a group of vehicles, it may order a recall and remedy campaign.
However, NHTSA cannot become involved in individual problems between you, your
dealer, or Big Tow Trailers.
To contact NHTSA, you may either call the Auto Safety Hotline toll-free at 1-800-424-9393
(or 366-0123 in Washington, DC area) or write to: NHTSA, U.S. Department of
Transportation, 400 7th Street SW NSA-11, Washington, DC 20590. You may also obtain
other information about motor vehicle safety from the Hotline.
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Page 8
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Trailer Terminology - Gooseneck
Upper
Gooseneck
Weldment
Gooseneck
Lift Arm
Load Block
Handle
Load
Blocks
Hydraulic
Controls
Kingpin
Air and Electrical
Receptacles
Load
Plate
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Page 9
Under
Carriage
Weldment
Gooseneck
Kingpin
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Trailer Terminology - Frame and Trunnion
Triple axle model shown.
Over-all
Length
Deck
Length
Swing
Clearance
Approach
Plate
Hose and
Wire Stowage
Compartment
Decking
Chain
Storage
Cross
members
Open
Boom
Well
Side
Beam
Frame (Bed)
Main
Frame
Bolster
Gooseneck
Out-Rigger
D-rings
Trunnion
Front
Loading
Ramps
Load Pin
Gooseneck
Lock Handle
5th Wheel
Lock Assembly
Gooseneck
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Page 10
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Operation of Trailer
INTRODUCTION
These instructions are designed to make you familiar with the operation of our product. It is not
intended for the purpose of training or to replace common knowledge in operating a detachable
gooseneck trailer. Make sure you read these instructions before using the Big Tow Platinum
detachable gooseneck trailer.
There are references at the end of these instructions to find your local and state laws regarding the
use of a trailer. Please follow all local, state and federal regulations.
OPERATION INSTRUCTIONS
1. IMPORTANT! Read and understand all safety decals and
the operating decal prior to using the trailer!
These decals are placed in key areas on the trailer and point out
instructions and important safety factors in those areas. Failure
to understand these instructions could cause serious injury.
2. The Platinum Series detachable gooseneck trailer features
a king pin hitch system for use with tractor truck fifth-wheels.
Make sure the truck fifth-wheel is in the proper location so that
the gooseneck can be properly detached and reattached to the
trailer bed.
3. Before using the trailer, make sure you are in a safe location
and parked on solid ground. Make sure the truck and trailer are
in a straight line and on as level ground as possible.
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Operation of Trailer
DETACHING TRAILER
4. Start the hydraulic system so that oil is flowing to the
gooseneck. If your trailer has the pony motor option, start the
pony motor according to the instructions on the pony motor
decal.
5. Detach the air and electrical lines from the gooseneck to the
trailer bed and store them in the storage area at the front of the
trailer bed near the front ramp.
6. Using the hydraulic control levers, raise the gooseneck until
the load blocks can be rotated and the handle attached to the
holder to keep the load blocks out of the way.
7. Using the hydraulic controls, lower the gooseneck and trailer
to the ground and continue lowering until there is approximately
1/4” gap below the load pin and the load plate.
DANGER! Watch your feet! Stand clear from trailer deck
when lowering the trailer to the ground!
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Operation of Trailer
DETACHING TRAILER
8. Lower the gooseneck lifting arm to the truck frame using the
front hydraulic control lever. Lower it only to touch the frame
enough to support the gooseneck.
9. Firmly pull the lock release handle to release the fifth-wheel
lock on the trailer bed.
10. Slowly drive forward and adjust the lifting arm accordingly so
the gooseneck load plates do not drag on the ground.
11. Flip down the front ramps and carefully load or unload the
equipment.
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Operation of Trailer
ATTACHING GOOSENECK TO TRAILER
12. Adjust the gooseneck so that the load plate is approximately
1-1/2” above the ground. Do this by lifting the gooseneck with
the gooseneck lifting arm hydraulic controls.
13. Adjust the undercarriage if necessary, then slowly back to
the trailer bed.
Lock handle shown in
UNLOCKED position.
14. The gooseneck will self-align into the fifth-wheel on the
trailer bed. Back up until the gooseneck locks in place and the
lock handle is in the lock position (all the way in).
Lock handle shown in
LOCKED position.
15. Raise the gooseneck and trailer until the load blocks can be
rotated and positioned in the desired ride position.
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Operation of Trailer
ATTACHING GOOSENECK TO TRAILER
16. Lower the gooseneck and trailer to transport position (load
blocks resting on the base).
17. Raise gooseneck lifting arm and connect the air and
electrical lines.
Instructions for other options
There are other options available for the Platinum Series detachable gooseneck. Instructions on
how to operate these options follow.
Air Raise/Lower Kits
This option allows you to raise or lower the rear of the trailer to
clear objects, grades, railroad rails and more.
To raise:
Pull the air control knob to allow air to the raise and lower
controls. You will see the needle on the gauge show air
pressure.
Lift the lever to raise the rear suspension and lower the lever to
lower the rear suspension.
When finished, push the air control knob to stop air from entering
the controls.
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Operation of Trailer
Rear hydraulic ramps
Follow the instruction decal near the control lever at the rear of
the trailer. Hydraulic power does not need to be fed to lower the
hydraulic ramps.
Push the hydraulic control lever down and rotate the locking
plate over it to hold it down. This opens the hydraulic system so
the ramps can be lowered.
NOTE: This lever must be in the down position while
loading and unloading equipment or damage to the
hydraulic system or ramps will occur.
Remove the keeper pins and ramp hold-ups and let the ramp
lower to the ground. Make sure you stand clear while ramps are
lowering.
Stand clear when
lowering ramps.
To raise the ramps, hydraulic power must be provided to the rear
of the trailer. Use the oil selector valve to send power to the rear.
Start the pony motor if a wet line is not used.
Rotate the lock plate and raise the control lever to raise the
ramps.
Attach the ramp hold-up bars and secure with pins.
Turn off pony motor.
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Operation of Trailer
Outrigger boards with hold-down clips
With this option, you can carry the outrigger boards in the open
areas of the deck by loosening the clips and rotating them over
the outrigger boards.
Follow the instruction decal.
Battery pack with flasher for marker lights
This kit allows the flashers to be used when the trailer deck is
detached from the gooseneck. Unplug the electrical plug from
the receptacle and plug it into the flasher kit receptacle located in
the line storage area.
Rear lift axle
The rear lift axle should only be used in an empty condition only!
This kit reduces wear when transporting the trailer without a
load.
At the rear of the trailer you will find the raise/lower valve.
To raise the rear axle: Pull the knob.
To lower the rear axle: Push the knob.
When the axle is lowered it becomes a part of the working
suspension.
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Hub/Drum Assembly, Stud Piloted
Item
1
2
3
4
5
6
7
Part #
252150
252156
252153
252154
252160
252165
252171
Description
hub casting
3/4-16 stud
wheel bearing cup, outer
wheel bearing cup, inner
16.5 x 7" brake drum
abs tone ring
hex nut
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Hub/Drum Assembly, Hub Piloted
Item
1
2
3
4
5
6
7
Part #
252150
252153
252154
252157
252160
252170
252165
Description
hub casting
wheel bearing cup, outer
wheel bearing cup, inner
M22 wheel stud
16.5 x 7" brake drum
M22 x 1.5 swivel flange nut
100 tooth tone ring
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Brake Assembly, non ABS and ABS
5
8
7
12
11
15
4
6
1
2
17 16
3
18
10
24
14
13
19
16A
Item
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
16A
17
18
19
20
21
22
23
24
Part #
9
22 23
20 21
Description
25-2200
25-2201
25-2241
25-2240
r.h. hub and drum assembly, non abs
r.h. hub and drum assembly, abs
l.h. hub and drum assembly, non abs
l.h. hub and drum assembly, abs
25-2219
25-2218
25-2217
25-2216
31-1700
31-1701
31-1702
31-1703
31-1704
31-1705
31-1706
25-2206
31-1710
31-1711
25-2231
25-2230
25-2051
25-2003
25-2004
25-2005
25-2226
31-1715
31-1716
31-1717
31-1718
31-1719
37-5011
spindle nut, inner
spindle nut, outer
washer
star washer
shoe and lining assembly
return spring
tension spring
anchor pin
r.h. cam bracket
l.h. cam bracket
slack adjuster
bolt and nut kit
cam, r.h.
cam, l.h.
bearing cone, inner
bearing cone, outer
oil seal
hub cap
hub cap (for hubodometer)
gasket
bolt and lock washer
spacer, steel
spacer, steel
snap ring
spacer, steel
snap ring
hubodometer
25-2220
25-2244
25-2245
25-2246
spider welding spec
abs sensor clip (not shown)
abs sensor lead (not shown)
abs block (not shown)
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Suspension, Spring (Hutchens)
7
3
2 2A
12
4A
1
20
2B
18
5 5A
19
6 6A
Item
1
2
2A
2B
3
4A
5
5A
6
6A
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Part #
29-0026
29-0029
29-0029R
29-0029L
29-0030
29-0027
29-0032
29-0032A
29-0034
29-0034A
29-0036
29-0038
29-0040
29-0042
29-0044
29-0029
29-0048
29-0050
29-0052
29-0054
29-0056
29-0058
29-0060
29-0062
8
9
13 14 15 16 17
10 11
Description
front spring hanger
center spring hanger w/ equalizer, 49" axle spacing
rh center spring hanger w/ equal., 54 ½" axle spacing
lh center spring hanger w/ equal., 54 ½" axle spacing
rear spring hanger
3 leaf spring, 24,000 lb. cap.
non-adjustable torque arm, 49" axle spacing
non-adjustable torque arm, 54 ½" axle spacing
adjustable torque arm, 49" axle spacing
adjustable torque arm, 54 ½" axle spacing
u-bolts 7/8" x 5" rd x 11 3/4"
washer 7/8"-14
hex nut 7/8"-14
torque arm bolt, 1"-14 x 5"
lock nut 1"-14
center spring hanger w/ equalizer
hex nut 5/8"-18
hex bolt 5/8" x 4 ½"
washer 5/8" shakeproof
sleeve spacer
step bolt 5/8" x 18 x 3/4"
double washer-lock tab 5/8"
bottom plate, u-bolt
spring seat, 3/4" high
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Suspension, Air-Ride, Front Section (Ridewell)
8
2
2 3
1
2
2
3
2
5
2
1
2
3
4
5
6
7
8
9
10
11
12
6
9
10
4
12
Item
7
Part #
11
Description
29-4014
suspension kit, complete
29-4096
29-4090
29-4079
29-4074
29-4092
29-4078
29-4081
29-4082
29-4080
29-4062
29-4103
29-4102
bushing sleeve assembly only
kit, bushing replacement
wear washer only
anti-turn washer only
eccentric bolt only
nut for eccentric bolt only
bolt, shock absorber
nut, shock absorber
shock absorber
airspring
washer, beam
bolt, beam
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Suspension, Air-Ride, Center and Rear Section (Ridewell)
2
1
13 9
11
12
13 7
10 13
13 6
13
13 4
13 5
8
13 3
Item
1
2
3
4
5
6
7
8
9
10
11
12
13
Part #
Description
29-4012
suspension kit, complete
29-4060
29-4061
29-4071
29-4072
29-4073
29-4074
29-4075
29-4079
29-4078
29-4076
29-4077
29-4080
29-4062
29-4070
hanger assembly, l.h.
hanger assembly, r.h.
washer only
nut only
bolt only
anti-turn washer only
eccentric bolt only
wear washer only
nut for eccentric bolt only
bushing assembly only, l.h.
bushing assembly only, r.h.
shock absorber
airspring only
kit, bushing replacement (specify l.h. or r.h.)
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Axle Lift
Item
1
2
3
4
5
6
7
8
9
10
11
Part #
16-6029
29-4043
29-4044
29-4045
29-4046
29-4047
29-4048
29-4049
29-4050
29-4051
29-4052
29-4053
Description
air spring, #7808
3/8 lock washer
HHCS, 3/8 x 7/8 lg
HHCS, 3/4 x 5 lg
1" lock tooth washer
HHCS, 1" x 5" lg
36" nylon strap
3/4" oval lock nut
split bushing with sleeve
sleeve, 3/4" i.d. x 3" long
underslung lift beam
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Pivot Bushing & Eccentric Bolt Replacement (Ridewell)
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Alignment of Axle
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Wheels and Tires
2 2A
1 1A
4
3
Shown with optional wheel covers.
5
* 255/70R x 22.5, load range H, 16 ply, is rated for 5,070 lbs. @ 120psi (dual wheel application)
* 270/80R x 22.5, load range H, 16 ply, is rated for 6,175 lbs. @ 120psi (dual wheel application)
Item
1
1A
2
2A
3
4
5
Part #
Description
27-0080
27-0081
27-0800
27-0084
27-0790
37-5011
25-2004
tire only, 255/70R x 22.5
tire only, 275/80R x 22.5
wheel only, budd, 8.25 x 22.5
wheel only, hub-piloted, 8.25 x 22.5
wheel only, hub-piloted, 8.25 x 22.5, aluminum
hubodometer only
hub cap/hubodometer mount
27-4070
27-4071
27-4072
27-4075
27-4076
27-4077
assembly, tire/wheel, 255/70 x 22.5 tire and hub piloted 8.25 x 22.5 wheel (27-0080 & 27-0084)
assembly, tire/wheel, 255/70 x 22.5 tire and budd 8.25 x 22.5 wheel (27-0080 & 27-0800)
assembly, tire/wheel, 255/70 x 22.5 tire and hub piloted aluminum wheel (27-0080 & 27-0790)
assembly, tire/wheel, 275/80 x 22.5 tire and hub piloted 8.25 x 22.5 wheel (27-0081 & 27-0084)
assembly, tire/wheel, 275/80 x 22.5 tire and budd 8.25 x 22.5 wheel (27-0081 & 27-0800)
assembly, tire/wheel, 275/80 x 22.5 tire and hub piloted aluminum wheel (27-0081 & 27-0790)
1-866-397-8481
Fax: 1-320-693-5703
Page 27
www.bigtowtrailers.com
Safety Warnings - Tires
1-866-397-8481
Fax: 1-320-693-5703
Page 28
www.bigtowtrailers.com
Safety Warnings - Tires
1-866-397-8481
Fax: 1-320-693-5703
Page 29
www.bigtowtrailers.com
Safety Warnings - Tires
1-866-397-8481
Fax: 1-320-693-5703
Page 30
www.bigtowtrailers.com
Air Brake System, Tandem Axle, 2S/1M
ref. dwg.: 16-6027
Item
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
Part #
Description
31-4515
35-0101
35-0107
35-0183
35-0177
35-0103
air chamber, park, type 30/30
3/8" air brake hose, 24"
3/8" air brake hose, 32"
spring brake valve
ecu/valve 2S/1M
3/8" air brake hose, 54"
35-0400
35-0404
35-0112
35-0085
35-0003
35-0070
35-0136
35-0156
37-5984
37-5988
comp. fitting, 1" pipe, 3/4" hose
90 deg. elbow, 1" pipe, 3/4" hose
3/4" synflex air brake hose
air tank, 2800 cu. in.
3/4" sq. head plug
drain valve with 5 ft. pull cable
blue 3/8" nylon air brake tubing
red 3/8" nylon air brake tubing
male elbow, 90 deg.
bulkhead anchor
35-0071
35-0927
35-0926
coupling, 3/8" brass
nipple m/pipe
coupler m/pipe
1-866-397-8481
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www.bigtowtrailers.com
Air Brake System, Tandem Axle, 4S/2M
ref. dwg.: 16-6033
Item
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
Part #
Description
31-4515
35-0101
35-0107
35-0183
35-0173
35-0103
air chamber, park, type 30/30
3/8" air brake hose, 24"
3/8" air brake hose, 32"
spring brake valve
ecu/valve
3/8" air brake hose, 54"
35-0400
35-0404
35-0112
35-0085
35-0003
35-0070
35-0136
35-0156
37-5984
37-5988
comp. fitting, 1" pipe, 3/4" hose
90 deg. elbow, 1" pipe, 3/4" hose
3/4" synflex air brake hose
air tank, 2800 cu. in.
3/4" sq. head plug
drain valve with 5 ft. pull cable
blue 3/8" nylon air brake tubing
red 3/8" nylon air brake tubing
male elbow, 90 deg.
bulkhead anchor
35-0071
35-0927
35-0926
coupling, 3/8" brass
nipple m/pipe
coupler m/pipe
1-866-397-8481
Fax: 1-320-693-5703
Page 32
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Air Brake System, Tri-Axle, 2S/2M
ref. dwg.: 16-6026
Item
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
Part #
Description
31-4515
35-0100
air chamber, park, type 30/30
3/8" air brake hose, 97"
35-0183
35-0178
35-0102
35-0107
35-0085
35-0070
35-0103
spring brake valve
ecu/valve 2S/2M
3/8" air brake hose, 44"
3/8" air brake hose, 32"
air tank, 2800 cu. in.
drain valve with 5 ft. pull cable
3/8" air brake hose, 54"
35-0003
35-0136
35-0156
37-5984
37-5988
3/4" sq. head plug
blue 3/8" nylon air brake tubing
red 3/8" nylon air brake tubing
male elbow, 90 deg.
bulkhead anchor
35-0071
35-0927
35-0926
35-0080
coupling, 3/8 brass
nipple m/pipe
coupler m/pipe
air tank, 1488 cu. in.
1-866-397-8481
Fax: 1-320-693-5703
Page 33
www.bigtowtrailers.com
Air Brake System, Tri-Axle, 6S/3M
ref. dwg.: 16-6031
Item
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
Part #
Description
31-4515
35-0100
35-0177
35-0183
35-0173
35-0102
35-0107
35-0085
35-0070
35-0103
air chamber, park, type 30/30
3/8" air brake hose, 97"
ecu valve
spring brake valve
ecu valve
3/8" air brake hose, 44"
3/8" air brake hose, 32"
air tank, 2800 cu. in.
drain valve with 5 ft. pull cable
3/8" air brake hose, 54"
35-0003
35-0136
35-0156
37-5984
37-5988
3/4" sq. head plug
blue 3/8" nylon air brake tubing
red 3/8" nylon air brake tubing
male elbow, 90 deg.
bulkhead anchor
35-0071
35-0927
35-0926
35-0080
coupling, 3/8 brass
nipple m/pipe
coupler m/pipe
air tank, 1488 cu. in.
1-866-397-8481
Fax: 1-320-693-5703
Page 34
www.bigtowtrailers.com
Air Brake System, Tri-Axle, Non ABS
ref. dwg.: 16-6032
Item
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
Part #
Description
31-4515
35-0100
air chamber, park, type 30/30
3/8" air brake hose, 97"
35-0183
35-0480
35-0102
35-0107
35-0085
35-0070
35-0103
spring brake valve
relay valve
3/8" air brake hose, 44"
3/8" air brake hose, 32"
air tank, 2800 cu. in.
drain valve with 5 ft. pull cable
3/8" air brake hose, 54"
35-0003
35-0136
35-0156
37-5984
37-5988
3/4" sq. head plug
blue 3/8" nylon air brake tubing
red 3/8" nylon air brake tubing
male elbow, 90 deg.
bulkhead anchor
35-0071
35-0927
35-0926
35-0080
coupling, 3/8 brass
nipple m/pipe
coupler m/pipe
air tank, 1488 cu. in.
1-866-397-8481
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Page 35
www.bigtowtrailers.com
Air Brake System Fittings
350003
350008
350015
350028
350031
3/4" sq. head plug
branch tee
3/8" sq. head plug
3/8" street elbow
3/8" male connector
350033
350034
350048
350126
350400
90 deg. male swivel
elbow, 1/4" pipe
90 deg. male swivel
elbow, 3/8" pipe
pipe tee
3/8" hex nipple
comp. fitting, 1" pipe
3/4" hose
350404
350041
90 deg. elbow, 1 pipe,
3/4" hose
reducer, 3/4" - ½"
ABS Components
1
2
5
3
6
9
7
8
Item
Part #
Description
1
2
3
35-0177
35-0178
35-0173
ecu/valve assembly, 2s/1m
ecu/valve assembly, 2s/2m (triple axle only)
ecu/valve assembly, 4s/2m
5
6
7
8
35-0187
35-0196
35-0194
35-0161
35-0163
35-0198
abs diagnostic cable (optional)
sensor spring clip
sensor with molded socket
power cord (2s/1m)
power cord (4s/2m)
sensor extension with plug
9
1-866-397-8481
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Page 36
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Air System, Gooseneck, 96" Swing Clearance
ref. dwg.: 16-6012
Item
1
2
3
4
5
6
7
8
9
10
11
12
13
Part #
37-0832
36-0013
36-0016
35-0926
35-0927
37-5988
37-5987
37-5983
37-5984
37-5985
37-5986
35-0050
35-0052
35-0156
35-0136
Description
hose clamp
nut, 1/4-nc
1/4" lock-washer
type 30 coupler m/pipe
type 30 nipple m/pipe
bulk head anchor fitting
tag service
tag emergency
male elbow, 90 deg.
male connector, 3/8"
bulk head/glad hand
glad hand service
glad hand emergency
nylon brake hose, red
nylon brake hose, blue
1-866-397-8481
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Page 37
www.bigtowtrailers.com
Tandem Axle Air Ride Suspension Air System
ref. dwg.: 16-6025
Item
1
2
3
4
5
Part #
370471
370470
350032
350033
350156
Description
height control valve
pressure protection
tee
90 deg. elbow
3/8 tube
ref. dwg. no. 166025
1-866-397-8481
Fax: 1-320-693-5703
Page 38
www.bigtowtrailers.com
Tri Axle Air Ride Suspension Air System
ref. dwg.: 16-6023
Item
1
2
3
4
5
Part #
370471
370470
350032
350033
350156
Description
height control valve
pressure protection
tee
90 deg. elbow
3/8 tube
ref. dwg. no. 166023
1-866-397-8481
Fax: 1-320-693-5703
Page 39
www.bigtowtrailers.com
Tri Axle Air Ride Suspension Air System with Lift on Rear Axle
ref. dwg.: 16-6020
Item
1
2
3
4
5
6
7
8
9
10
Part #
379476
370477
370475
370471
370470
350032
350033
350156
350113
375989
Description
100psi valve
control valve
pilot valve
height control valve
pressure protection
3/8 tee
3/8, 90 deg. elbow
3/8 tube
1/4 tube
1/4, 90 deg. elbow
ref. dwg. no. 166020
1-866-397-8481
Fax: 1-320-693-5703
Page 40
www.bigtowtrailers.com
Dual Hydraulic System, Wet Line & Pony Motor
ref. dwg.: 16-6022
Item
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
Part #
16-6022
37-0491
37-5977
37-5976
39-4307
37-5978
37-5999
35-0504
35-0503
37-6004
12-5027
37-6001
37-6171
36-0086
36-0105
36-0107
37-5160
37-5163
37-5161
06-4238
06-4235
36-0111
36-0002
36-0202
37-5162
16-6001
37-6141
1-866-397-8481
Description
selector valve
90 deg. elbow, 8 male pipe, 8MJ-8MP90
reducer, 10 male boss, 8MJ-10MB
check valve
straight fitting, 8 male boss, 8MJ-8MB
reducer, 12 male pipe, 8MJ-12MP
filter head
filter element
straight fitting, 12 male pipe, 12MP-12MP
hyd tank
90 deg. elbow, 12 male pipe, 8MJ-12MP90
gas tank
bolt, HHCS .31-unc x 4", grade 5
lock nut, .31-unc
flat washer, .31
suction hose
return to tank hose
valve/selector hose
selector valve mount
oil tank mount
bolt, HHCS .38-unc x 1", grade 5
lock nut, 3/8-unc
3/8 flat washer
power line hose
84" hyd. wet lin
strainer/breather cap
Fax: 1-320-693-5703
Page 41
www.bigtowtrailers.com
Hydraulic System (Wet Line) 84" Swing Gooseneck
ref. dwg.: 16-6001, pg. 1 of 2
Item
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
Part #
Description
16-6001
37-5972
37-5971
37-5969
37-5970
37-5962
37-5965
37-3502
37-5966
37-0320
37-5967
37-5964
37-5963
37-5978
37-5961
37-5975
quick coupler
nipple
pipe adapter
bulkhead w/ lock nut
supply hose, 108"
return hose, 116"
control valve
rod end, 30" (4 x 10)
cylinder, 4 x 10
butt end, 24" (4 x 10)
main cyl top hose, 39"
main cyl bot hose, 50"
o-ring, jic
hose, union, 19"
tee adapter
37-5977
37-0311
37-5976
37-5968
37-5981
36-0202
36-0201
37-0245
07-0320
37-5979
07-0321
37-5980
37-0832
36-0206
½" - ½", 90 deg. o-ring, jic
cylinder, 8 x 8
½" - 3/4", 90 deg. o-ring, jic
3" rubber grommet
bolt, 3/8-unc hhcs x 1", grade 5
3/8 flat washer
3/8 lock washer
grease zert, 1/4 ase
bottom pin, 8 x 8 cyl
cotter pin, 1/4 x 3
top pin, 8 x 8 cyl
grease zert, 1/4-45 deg.
hose clamp
1/4-unc lock nut
37-5126
37-5125
dust plug
dust cap
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Page 42
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Hydraulic System (Wet Line) 84" Swing Gooseneck
ref. dwg.: 16-6001, pg. 2 of 2
1-866-397-8481
Fax: 1-320-693-5703
Page 43
www.bigtowtrailers.com
Hydraulic System (Wet Line) 96" Swing Gooseneck
ref. dwg.: 16-6011, pg. 1 of 2
Item
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
Part #
Description
16-6011
37-5972
37-5971
37-5969
37-5970
37-5968
37-5969
37-3502
37-5966
37-0320
37-5967
37-5964
37-5963
37-5978
37-5961
37-5975
quick coupler
nipple
pipe adapter
bulkhead w/ lock nut
supply hose, 126"
return hose, 134"
control valve
rod end, 30" (4 x 10)
cylinder, 4 x 10
butt end, 24" (4 x 10)
main cyl top hose, 39"
main cyl bot hose, 50"
o-ring, jic
hose, union, 19"
tee adapter
37-5977
37-0311
37-5976
37-5968
37-5981
36-0202
36-0201
37-0245
07-0320
37-5979
07-0321
37-5980
37-0832
36-0206
½" - ½", 90 deg. o-ring, jic
cylinder, 8 x 8
½" - 3/4", 90 deg. o-ring, jic
3" rubber grommet
bolt, 3/8-unc hhcs x 1", grade 8
3/8 flat washer
3/8 lock washer
grease zert, 1/4 ase
bottom pin, 8 x 8 cyl
cotter pin, 1/4 x 3
top pin, 8 x 8 cyl
grease zert, 1/4-45 deg.
hose clamp
1/4-unc lock nut
37-5126
37-5125
dust plug
dust cap
1-866-397-8481
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Page 44
www.bigtowtrailers.com
Hydraulic System (Wet Line) 96" Swing Gooseneck
ref. dwg.: 16-6011, pg. 2 of 2
1-866-397-8481
Fax: 1-320-693-5703
Page 45
www.bigtowtrailers.com
11HP Honda Power Supply, Standard
ref. dwg.: 16-6024
Item
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
Part #
16-6024
37-6180
37-6183
12-5026
37-5057
37-5055
37-5058
37-6170
39-9026
36-0081
36-0082
36-0103
36-0017
36-0205
36-0206
35-0215
36-0777
36-0776
37-5056
36-0207
39-1546
39-1547
37-5200
06-4311
37-6168
37-6008
06-4225
1-866-397-8481
Description
11HP Honda
.42 c.i. pump
engine mount
coupler, 1" bore
coupler spacer
coupler, .63 bore
starter switch
rubber boot
bolt, HHCS 5/16-unf x 1", grade 5
bolt, HHCS 5/16-unf x 2", grade 5
5/16 lock washer
HHCS 1/4-unc x 1 1/4
1/4 flat washer
1/4-unc lock nut
battery
J-bolt
battery hold-down
fuel shut off
bolt, HHCS 1/4-unc x 1", grade 5
red wire, 40"
black wire, 40"
5/16 rubber plug
throttle cable mount
control cable
cable end mount
ignition mount plate
Fax: 1-320-693-5703
Page 46
www.bigtowtrailers.com
Pony Motor Hydraulic/Mounting, 11HP Honda
ref. dwg.: 16-6000, pg. 1 of 2
GR. 5
GR. 5
1-866-397-8481
Fax: 1-320-693-5703
Page 47
www.bigtowtrailers.com
Pony Motor Hydraulic/Mounting, 11HP Honda
ref. dwg.: 16-6000, pg. 2 of 2
1-866-397-8481
Fax: 1-320-693-5703
Page 48
www.bigtowtrailers.com
Electrical System, Gooseneck
ref. dwg.: 16-6013
Item
1
2
3
4
5
Part #
39-7074
35-0013
36-0016
36-0207
39-7180
1-866-397-8481
Description
harness
nut, 1/4"-nc
1/4" lock washer
HHCS 1/4-unc x 1"
24" cable extension
Fax: 1-320-693-5703
Page 49
www.bigtowtrailers.com
Wiring Harness
Harness no.: 39-7074
1-866-397-8481
Fax: 1-320-693-5703
Page 50
www.bigtowtrailers.com
Lighting
ref. dwg.: 16-6014
4
8
2
3 3A 7 7A
10
9 9A
Item
1
2
3
3A
4
5
6
7
7A
8
9
9A
10
Part #
39-7074
39-3000
39-3007
39-2745
39-3001
39-3006
39-3009
39-2740
39-3011
39-3016
39-3016
39-3022
Description
wiring harness
2 ½" round grommet, flush mount
2 ½" amber marker light
2 ½" amber marker light (L.E.D.)
oval tail light grommet
mid-ship marker light
abs light
2 ½" red marker light
2 ½" red marker light (L.E.D.)
license light
4 ½" stop/turn/tail light
4 ½" stop/turn/tail light (L.E.D.)
4 ½" round grommet
1-866-397-8481
Fax: 1-320-693-5703
Page 51
www.bigtowtrailers.com
84" and 96" Gooseneck Assemblies, Replacement Parts
ref. dwg.: 16-6002 & 16-6010, pg. 1 of 2
20
Item
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Part #
12-5056
12-5072
12-5071
12-5070
07-0325
36-0030
06-4195
36-0018
36-0807
12-5046
12-5072
37-5982
12-5074
37-0460
37-5973
36-0408
37-5974
33-2809
Description
load block weldment
pivot pin weldment
l.h. load block pin weldment
r.h. load block pin weldment
load block handle
nut, ½" ny-lock
pin cap
lock washer, ½"
HHCS ½-unc x 1.00
lift arm weldment
lift arm pin weldment
cotter pin, 1/4 x 2
linkage rod assembly
pin, ½ x 1 ½
cotter pin, 1/8 x 1
5/8 lock washer
HHCS 5/8-unc x 3" plated
2" king pin
1-866-397-8481
Fax: 1-320-693-5703
Page 52
www.bigtowtrailers.com
84" and 96" Gooseneck Assemblies, Replacement Parts
ref. dwg.: 16-6002 & 16-6010, pg. 2 of 2
142.00
1-866-397-8481
Fax: 1-320-693-5703
Page 53
www.bigtowtrailers.com
Ramps, Springs and Cantilever
1
3
2
4
5
6
8
7
9
Item
1
2
3
4
5
6
7
8
9
Part #
12-5041
12-5089
12-5098
12-5075
12-5078
07-0307
07-0050
07-0016
37-0580
37-0582
37-0622
37-0234
37-0235
Description
standard front loading ramp
3rd (center) ramp
front paver ramp
5 ft. cleat style rear ramp (for use with 30" beavertail)
cantilever
ramp rod, stress-proof, 1 ½" x 22 3/8"
cantilever rod, stress-proof, 1 ½" x 41 ½"
ramp rod, 1" x 22"
ramp helper spring, lift off beavertail, l.h. (3/8")
ramp helper spring, lift off beavertail, r.h. (3/8")
ramp helper spring, lift off ground (5/8")
roll pin, 5/16" x 1 ½" (not shown)
roll pin, 5/16" x 3" (not shown)
1-866-397-8481
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Page 54
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Hydraulic Ramp System
16
17
14
15
Item
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
Part #
37-0302
35-6002
35-6000
37-4001
37-6001
37-6002
37-6200
37-4003
37-5988
37-4004
37-5971
37-5972
37-4005
37-6003
12-5087
12-5092
07-0327
37-0235
Description
cylinder, lower, 3 ½ x 16
hose assy, cylinder to tee
tee bulkhead, #6 JIC
hose tee to valve
90 deg. elbow, 8MJ-8MB90
90 deg. elbow, 6MJ-8MB90
single spool valve
deck length hose
bulkhead, 8MJ-8MJBKHD
pigtail hose
nipple
quick coupler
hose jumper
fitting, male boss, 6MJ-8MB
3 ft. x 8 ft. cleat style hydraulic rear ramp (for use with 36" beavertail)
ramp hold-up
ramp rod
roll pin, 5/16" x 3" ramp rod keeper (not shown)
1-866-397-8481
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Page 55
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Fenders
Item
1
2
3
4
5
6
7
Part #
12-5100
37-2034
37-0802
37-0804
37-1112
37-1111
36-0002
37-1110
Description
mounting bracket, specify l.h. or r.h.
fender (cut to fit on shorter models)
mud flaps, Towmaster (one pair)
mud flaps, generic, no logos (one pair)
HHCS 3/8-unc x 1 1/4
3/8 large flat washer
3/8-unc lock nut
cushion washer
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5th Wheel Locking Assembly
ref. dwg.: 16-6007
Item
1
2
3
4
5
6
7
Part #
16-6006
12-5086
12-5068
37-1120
36-0304
36-0030
Description
5th wheel locking assembly
lock handle assembly
5th wheel pin assembly
cable clamp
spring (sold with rebuild kit)
9/16" nut
½" ny-lock nut
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5th Wheel Locking Assembly
ref. dwg.: 16-6006
Note: Items without part numbers are not replacement
parts, and are available with complete assembly only.
Item
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
Part #
Description
16-6006
37-6600
5th wheel locking assembly (complete)
rebuild kit (includes all items except 1, 16, 17 and 25)
12-5042
lock weldment
pin
torsion spring
lock guard
lock jaw
lock pin
cotter pin, 1/4 x 2
yoke
cam plate
yoke shaft
lock nut, 3/4-16
washer, 1 ½ o.d. x 13/16 i.d.
rubber washer
lock adjustment tag
secondary lock
pivot bar weldment
tee pivot lock
bolt, 5/8-18 x 1 3/4
washer
roller
bolt, ½-10 x 1 3/4
washer, 1 3/4 o.d. x 9/16 i.d.
roller
locknut, ½-20
spacer block
spring
37-6601
12-5043
12-5057
08-1026
1-866-397-8481
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Page 58
www.bigtowtrailers.com
Miscellaneous Parts
11
12
8
10
4
5
2
1
3
7
9
Item
Part #
Description
1
2
3
4
5
12-5041
07-0307
37-5979
12-5025
37-4000
front loading ramp
ramp rod
cotter pin
double out-rigger (front out-rigger)
out-rigger and mounting clips
7
8
37-0009
12-5090
12-5113
37-0804
37-6072
07-0325
07-0313
1" D-ring and clip
optional removable wheel cover, 54.50" axle centers
optional removable wheel cover, 49.00" axle centers
mud flaps, generic (one pair)
registration holder
load block handle
lock handle bar
9
10
11
12
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Page 59
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Removable King Pin
Item
1
2
3
4
5
6
7
Part #
37-0121
36-1050
36-1051
37-0122
37-0123
37-0124
36-1052
Description
hair pin
nut
washer
king pin
plug
cover plate
wing nut
1-866-397-8481
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Page 60
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Decals (Warnings and Cautions)
These decals are located on various parts of your trailer, please be
aware of all DANGER, WARNING, CAUTION and ATTENTION decals.
Ignoring these decals, or not following proper operating
instructions may result in serious injury or death.
452080
453310
454206
Stand clear when
lowering ramps.
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Decals (Warnings and Cautions)
450009A
WARNING
453314
DANGER
For proper performance, all new axles should have
the following checked at the specific intervals:
Wheel Nut Torque:
Upon delivery, at 10, 25 and 50 miles and weekly
thereafter. KEEP THEM TIGHT!
Brake Adjustment:
At 200 miles and 3,000 miles and every 3,000
miles thereafter.
Tire Pressure:
Upon delivery and per tire manufacturer’s
450009A
requirements.
453301
WARNING
PINCH POINTS
Screen in glad hand must
be clean before connecting
to tow vehicle.
Watch your
hands!
45XXXX
Keep
clean!
453301
454201
WARNING
Disconnect wet line
from truck before
using pony motor!
454201
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Decals (Warnings and Cautions)
454203
453200
WARNING
Load must be
secured
according to D.O.T.
standards.
(Follow DOT Federal Motor Carrier Safety
Regulations §392.9, §393.100 and §393.102.)
453200
454202
CAUTION
Outrigger plank storage locks must
be in the locked position for traveling.
LOCKED
UNLOCKED
Outrigger plank
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454202
Page 63
www.bigtowtrailers.com
Decals (Warnings and Cautions)
452925
450008
ATTENTION
Registration
Holder
Parts and Service Manual enclosed.
To receive an additional 6 months
warranty of MAIN FRAME only, return
your warranty registration within 14
days. See your dealer for details.
453312
RETURN
452925
454204
ATTENTION
453313
POWER
SELECTOR OPTIONS
453311
IN
OUT
Neck Controls
Rear Ramp
Controls
454204
453401
451415
AIR BRAKE SYSTEM WIRING
4 OR 5 WIRE SCHEMATIC
TRAILER ABS
WARNING LAMP
IN TRACTOR
ECU INTERNAL GROUND (5 WIRE CABLE ONLY)
WHITE AND YELLOW
7 WAY
+
I.D. LIGHTS
WHITE (GROUND)
4
TAIL & MARKER LIGHTS
WHT
POWER
SOURCE
BLK
LT
TRAILER ABS
WARNING LAMP
BRN BLUE (CONSTANT POWER)
BLU
RT
GRN
YEL
RED
RED (STOP)
3
455000
2
1
GREEN AND WHITE
ECU POWER
CONNECTOR
GROUND
ABS ONLY
1-866-397-8481
5
Fax: 1-320-693-5703
451415
Page 64
www.bigtowtrailers.com
Decals (Warnings and Cautions)
453402
HYDRAULIC DETACHABLE OPERATING INSTRUCTIONS
CAUTION
BEFORE OPERATING THIS TRAILER,
READ AND UNDERSTAND THE TRAILER OPERATION MANUAL
Detach Instructions
1.
2.
3.
4.
5.
6.
7.
8.
9.
Park truck and trailer in a straight line and
on as level ground as possible.
Start hydraulic system.
Detach air and electrical lines, roll up
and put them in their storage area.
Raise gooseneck until loadblocks can
be rotated up.
While holding loadblocks in the up position,
lower the gooseneck to the ground.
Continue lowering gooseneck until there is
approximately 1/4” gap below loadpin
and loadplate.
Lower gooseneck lifting arm to truck frame.
Pull lock handle to the unlocked position.
Drive forward, adjust lift arm accordingly.
Transport position
Raise gooseneck
Rotate loadblock
Gooseneck lift arm
Hookup Instructions
1.
2.
3.
4.
5.
6.
7.
8.
9.
Adjust gooseneck height (should be 1.50 dim.
under loadplate to ground).
Adjust undercarriage (if needed).
Back up truck slowly until lock latches.
Undercarriage will self-align with trailer (if not,
pull ahead and adjust accordingly).
Be sure the lock handle is in the locked position.
Raise gooseneck/deck until loadblocks can be
rotated down to the desired deck height.
Lower gooseneck/deck to transport position.
Raise gooseneck lift arm.
Connect air and electrical lines.
Lock handle
1/4” gap
NOTE: Before backing up, adjust gooseneck
lift arm (1-1/2” ground clearance)
453402
457101
PONY MOTOR INSTRUCTIONS
STARTING A COLD ENGINE:
Push button in on control cable head, while holding the control knob and
pull cable out until it stops (this is the choke position).
STARING A WARM ENGINE:
DO NOT USE THE CHOKE. Move the control knob slightly past the idle
position.
CHOKE
OFF
Turn key to the start position and hold it there until engine starts. When the
engine starts, allow the engine switch to return to the (ON) position. When
engine starts to run rough, turn the control knob clock-wise until engine
runs smooth.
DO NOT use the starter for more than 5 seconds or starter damage may
occur. If the engine fails to start, release the switch, wait 10 seconds and try
starting again.
STOPPING THE ENGINE:
Push the control knob all the way in to the kill position. Do not shut the key
off to stop the engine. After engine quits, turn key to the (OFF) position.
1-866-397-8481
Fax: 1-320-693-5703
Page 65
ON
START
TWIST
FOR
THROTTLE
KILL
457101
www.bigtowtrailers.com
Decals (Warnings and Cautions)
451240
ATTENTION
A "green brake" is an unground,
unburnished brake. Normal
manufacturing tolerances dictate that
there is a break-in period required after
which the lining will seat into a perfect
concentric situation. During this break-in
period, the user must be aware that
additional brake adjustments will be
mandatory to achieve optimum braking
performance.
451240
454207
454208
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Decals (Warnings and Cautions)
450037A, 5" x 26" decal
454170
454171
454172
454173
1-866-397-8481
Fax: 1-320-693-5703
Page 67
www.bigtowtrailers.com
Payload Ratings
ALL PAYLOAD RATINGS ARE AT 55+ M.P.H. Trailers are NOT shipped with BRAKE
CAB CONTROL equipment. Contact our parts department for information on
specialized controllers.
All payload ratings are approximate, and will vary slightly with the actual
finished trailer weight. Please see detail specifications for exact Gross Vehicle
Weight Rating (GVWR). Trailer payload capacity is defined as the GVWR less the
actual trailer weight. Please note that this payload capacity is a maximum to not
be exceeded, and may only be achieved when the trailer is carefully loaded so that
the gooseneck bears its full rated load.
Payload capacity will be reduced if the trailer is loaded such that the gooseneck
bears less than its full rated loading. Care should be taken that moving the load
back to reduce gooseneck weight does not overload the axles and tires. The
certification tag on the trailer lists the Gross Axle Weight Rating (GAWR), which is
the maximum total weight allowed on the axles/tires. Total axle/tire weight allowed
is the GAWR times the number of axles. The tag also lists the GVWR.
When selecting a trailer, always allow a capacity safety margin to account for
non-uniform loading, growth in load and accessories weight, and the multitude of
other unforeseen circumstances that occur in equipment transportation.
GAWR = axles, rims and tires
GVWR = trailer payload capacity plus the trailer weight (tare wt#).
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Recommended Outrigger Loadings
PROPER LOADING TECHNIQUE
Because outriggers (sometimes called swinging side brackets or extension brackets)
are often used to extend the useful width of the deck by approximately 12" on each side
(or 24" total), the proper loading technique is very important.
RECOMMENDED PRACTICE
It is recommended that the centerline of the vehicle tracks, tires or grousers be "in-line"
or "inboard" of the outside edge of the deck.
!! CAUTION !!
Outrigger brackets are designed for use only with 2" thick boards, so the use of thicker
boards and/or loading practices that disregard these recommendations may result in
outrigger failures (breakage) and subsequent equipment damage and personal injury.
C
L tracks
1-866-397-8481
maximum recommended width
not to exceed width of trailer
Fax: 1-320-693-5703
Page 69
C
L tracks
www.bigtowtrailers.com
Height Control Valve
1-866-397-8481
Fax: 1-320-693-5703
Page 70
www.bigtowtrailers.com
Height Control Valve Replacement
1-866-397-8481
Fax: 1-320-693-5703
Page 71
www.bigtowtrailers.com
Preventive Maintenance - Ridewell Suspension
1-866-397-8481
Fax: 1-320-693-5703
Page 72
www.bigtowtrailers.com
Torque Specifications / Suggested Preventive Maintenance
1-866-397-8481
Fax: 1-320-693-5703
Page 73
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Preventive Maintenance - Wheel Bearings
1-866-397-8481
Fax: 1-320-693-5703
Page 74
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Preventive Maintenance - Wheel Bearings
1-866-397-8481
Fax: 1-320-693-5703
Page 75
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Brake Disassembly / Assembly
1-866-397-8481
Fax: 1-320-693-5703
Page 76
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Recommended Brake Adjustment Procedure
A "green brake" is an unground, unburnished brake.
Normal manufacturing tolerances dictate that there is
a break-in period required after which the lining will
seat into a perfect concentric situation. During this
break-in period, the user must be aware that additional
brake adjustments will be mandatory to achieve
optimum braking performance.
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Page 78
Page 79
Portions of this manual were used with the expressed
authority of Dexter Axle, but Dexter Axle is not responsible for
the accuracy of the information contained herein.
Big Tow Quality, Big Tow Dependability
Employee Owned!
American Pride!
American Made!
Big Tow trailers, U.S. Hwy 12, Litchfield, MN 55355
866-397-8481
Parts Dept. Fax: 320-693-5703
www.bigtowtrailers.com
Big Tow Trailers has a complete line of trailers; small pans and tilts,
drop deck trailers, deck over models, large tilts and detachable
gooseneck trailers. See your Big Tow Trailers dealer or visit the
website for more information.
Manufacturer reserves the right to modify, without notice, specific designs and specifications as deemed advisable on the trailers described
herein without obligation in regards to trailers previously sold. The manufacturer also reserves the right to discontinue any model or models
without obligation in regards to trailers previously sold. Written warranty covers each trailer. No other warranty expressed or implied is made.
Warranty on tires and brakes through original manufacturer. All dimensions approximate.
47-6501:09/2004

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