TM 9-2320-272-24-4
THIS TASK COVERS:
d.
Assembly
a. Removal
e.
Installation
b. Disassembly
c . Inspection and Repair
INITIAL SETUP:
REFERENCES (TM)
APPLICABLE MODELS
LO 9-2320-272-12
M929/A1/A2, M930/A1/A2
TM 9-2320-272-10
TOOLS
TM 9-2320-272-24P
General mechanic's tool kit (Appendix E, Item 1)
EQUIPMENT CONDITION
Brass drift
Parking brake set (TM 9-2320-272-10).
Soft-faced hammer
Dump body removed (para. 4-144).
MATERIALS/PARTS
GENERAL SAFETY INSTRUCTIONS
GAA grease (Appendix C, Item 28)
Do not operate dump controls when dump body is
removed.
WARNING
Ensure dump control lever is in neutral and not moved. Injury to
personnel may result if lift cylinder is operated when not secured.
NOTE
Left and right roller arms are replaced basically the same way.
This procedure covers right roller arm.
NOTE
Use soft-faced hammer to tap roller arm if necessary to complete
step 1.
Remove roller arm (3) from hoist cylinder crosshead shaft (1).
1.
Using punch and hammer, remove two pins (2) from roller arm (3).
2.
Using brass drift and hammer, drive roller pin (5) out of roller arm (3) and roller (6).
3.
Remove roller (6) from roller arm (3).
1.
Inspect roller (6) and roller pin (5). If cracked or deeply grooved, replace roller (6) and roller pin (5).
2.
Inspect roller arm (3). If broken or cracked, replace.
3.
Inspect two bushings (4) in roller arm (3). If broken, cracked, or out-of-round, replace bushings (4).
NOTE
Perform steps 4 and 5 only if bushings need to be replaced.
4.
Using brass drift and hammer, drive two bushings (4) out of roller arm (3).
5.
Using wood block and hammer, drive one new bushing (4) in from each side of roller arm (3) until
bushings (4) are flush with roller arm (3).
5-612
