TM 5-3805-280-24-2
Frames
CAUTION: The approximate weight of standard
arm is 754 kg (1663 lb).
The approximate weight of bucket cylinder is
190 kg (420 lb).
Standard Arm--Specification
Weight.......................................................... 754 kg (1663 lb) approximate
Bucket Cylinder--Specification
Weight............................................................ 190 kg (420 lb) approximate
Arm-to-Boom Pivot
7. Remove arm without bucket cylinder or with bucket
cylinder installed. Bucket end of arm is the heavy end
when hoist is connected to mounting bracket for bucket
cylinder.
Put a wooden block between the arm cylinder and
boom to hold cylinder up when arm-to-arm cylinder pin
(F) is removed.
8. Inspect the bushings and dust seals. (See Inspect Arm
and Boom Pins and Bushings in this group.)
Repair or replace parts as necessary. (See Remove
and Install Bushings and Seals in this group.)
9. Install washer equally on each side of arm to get the
minimal amount of clearance between boom and arm.
There must be some clearance between boom and
arm.
10. Before installing pins, align the pin bores so as not to
damage the dust seal when pins are installed.
11. Apply grease to all lubrication fitting.
Arm With Bucket Cylinder
A--Retainer Ring
B--Retainer Ring
33
C--Pin
3340
D--Pin
8
E--Arm-to-Boom Pin
F--Arm-to-Arm Cylinder Pin
TX,33,UU3774
1921SEP982/2
21-30
