JRB Manual Mini Coupler

MANUAL MINI COUPLER
For CAT®** Mini Excavators and Backhoe Loaders
The JRB Manual Mini Couplers, by Paladin,
provide increased flexibility to operate
multiple attachments on a single excavator or
backhoe loader.
• Easily allows operator to change attachments and
gain back lost productivity from knocking out pins
• Attachment changes are faster and safer
• Spring loaded locking mechanism with integrated non-removable locking pin
• Works in both backhoe and face positions
• Clear visibility of locking mechanism aids secure
attachment
• Cast Manual couplers for 1-5 ton mini-excavators,
backhoe loader coupler (CAT only)
MANUAL MINI COUPLERS
Manual Mini Coupler Features
Strong, durable, high tensile
precision steel cast design frame
For CAT®** Mini Excavators and Backhoe Loaders
• Strong, lightweight cast design minimizes effect on
machine performance
• Manufactured with a process utilizing high grade steel to
produce a lighter, stronger and more durable design
• Cast design provides additional strength in the specific
areas that require it, while minimizing weight in areas
that are not load bearing
• The lighter weight improves machine efficiency and
reduces fuel consumption
Non-removable locking pin - prevents
loss of pin and ensures operators need
to visit coupler as part of the release/
attach process required as part of
future ISO 130131 regulation
Access point for coupler
operating handle
• Can be welded if necessary
• The base of the hook is flat to stop engagement of the
attachment from the operators cab, forcing operator
to install the locking pin as part of future ISO13031
regulation
JRB Manual Quick Coupler - Top View
Coupler Operating Handle
Lynch Pin
Non-Removable Locking Pin
Pin Bolts
Attachment Pins
Compression Spring
www.paladinattachments.com
Easy Engagement and Release of Attachments
5 Easy Steps to Engage Attachment
4 Easy Steps to Release Attachment
Step 1: Remove lynch
pin and slide locking pin
out to the hook release
position. Lower the
coupler and engage front
bucket pin.
Step 2: Lift the bucket
slightly off the ground.
Rotate bucket towards
cab until the back bucket
pin bears against the
hook. Insert the coupler
operating handle into the
hole at the back of the
coupler.
Step 3: Press down on
the coupler operating
handle to open the hook.
The weight of the bucket
drives the back bucket
pin into the back socket
of the coupler. Engage the
hook by taking pressure
off the coupler operating
handle. Remove the
coupler operating handle.
Step 4: Slide the nonremovable locking pin
into the coupler and
secure in place using the
lynch pin (see insert)
Step 5: Check that the
bucket pins are securely
held by the coupler. Apply
pressure to the bucket
by rotating it against the
ground and away from
the machine.
Step 1: Raise the bucket
slightly off the ground and
slightly angle bucket teeth
towards the ground - this will
allow the bucket to rotate away
from the rear pin after the
coupler operating handle has
released the hook. Remove the
lynch pin which secures the
non-removable locking pin.
Slide the locking pin out to the
hook release position.
Step 2: Insert the coupler
operating handle into the hole
at the back of the coupler.
Step 3: Press down on the
coupler operating handle to
disengage the hook and release
the rear bucket pin. The bucket
will swing forward on the front
bucket pin. Caution: the bucket
is now engaged by the front pin
only and may fall. Remove the
coupler operating handle.
Step 4: Lower bucket to the
ground. Rotate coupler away
from the cab to release the
front bucket pin.
MANUAL MINI COUPLERS
JRB Manual Mini Excavator/Backhoe Loader Coupler- Range
Manual Couplers for Caterpillar Backhoe Loaders
Range A
(Class 10)
Includes attachment pins and hardware
Vo
D
416, 417, 420, 428, 430,
438
Part Number
AW - Link
AW -Stick
93C0094
Coupler Weight
150 lbs/68kg
AW*
AW-Link = 8.1" (206mm)
AW-Stick = 10.1" (256mm)
Pin Diameter
D
1.97" (50mm) &
1.77" (45mm)
Pin Spread
PS
13.6" (345mm)
Coupler Vertical Offset
Vo
5.75" (146mm)
Coupler Horizontal Offset
Ho
4.41" (112mm)
Hook (Shell) Clearance
**(in) Measurement is radius from pin center
HC
2.83" (72mm)
Box Section Clearance
**(in) Measurement is radius from pin center
BC
3.23" (82mm)
Minimum Attachment Width
HC
BC
PS
Ho
Backhoe Loader Couplers
Vo
D
BC
AW
PS
HC
Ho
Mini Excavator Couplers
Manual Couplers for Caterpillar Mini Excavators
Range O
(300 Mini)
Range P
(300 Mini)
301.4C, 301.4D,
301.5, 301.6C,
301.7D, 301.8C
302D, 302.4D,
302.5, 302.5C,
302.7D
303CR, 303.5CCR,
303.5D, 304D,
303.5E, 304E
304.5
(old model)
304CCR, 305CCR,
305D, 305.5D,
305E, 305.5E
93C0087
93C0088
93C0089
93C0090
93C0091
Coupler Weight
29lbs/13kg
42lbs/19kg
53lbs/24kg
99lbs/45kg
112lbs/ 51kg
Minimum Attachment Width
AW*
4.11"
(104.5mm)
5.33" (135.5mm)
5.33" (135.5mm)
6.12"
(155.5mm)
6.12"
(155.5mm)
Pin Diameter
D
1.18" (30mm)
1.38" (35mm)
1.57" (40 mm)
1.57" (40 mm)
1.77" (45mm)
Pin Spread
PS
5.05" (126.5mm)
6.49" (165mm)
7.87" (200mm)
10.23" (260mm)
10.26" (260.5mm)
Coupler Vertical Offset
Vo
1.80" (45.6mm)
2.26" (57.5mm)
2.0" (50.9mm)
2.36" (59.9mm)
3.54" (90mm)
Coupler Horizontal Offset
Ho
2.78" (70.7mm)
3.36" (85.4mm)
3.55" (90.1mm)
3.47" (88.2mm)
5.87" (149mm)
Hook (Shell) Clearance
**(in) Measurement is radius from pin center
HC
1.85" (47mm)"
1.97" (50mm)
2.61" (55mm)
2.44" (62mm)
2.75" (70mm)
Box Section Clearance
**(in) Measurement is radius from pin center
BC
1.77" (45mm)
2.09" (53mm)
2.48" (63mm)
2.44" (62mm)
2.28" (58mm)
Includes attachment pins and hardware
Part Number
* The front and rear of the coupler on the attachment side are different widths.
**CAT is a registered trademark of Caterpillar.
|| PH: 800.456.7100 || www.paladinattachments.com || Connect with Paladin:
Range R
(400 Mini)
JRB-Mini Ex Couplers 05-14 © 2014 Paladin Powerful Attachment Tools
Range N
(300 Mini)