TM 9-2320-272-24-3
4-130. FIFTH WHEEL MAINTENANCE
THIS TASK COVERS:
a. Disassembly
c. Assembly
b. Cleaning and Inspection
INITIAL SETUP:
PERSONNEL REQUIRED
APPLICABLE MODELS
Three
M931/A1/A2, M932/A1/A2
TOOLS
REFERENCES (TM)
General mechanic's tool kit (Appendix E, Item 1)
LO 9-2320-272-12
TM 9-2320-272-24P
Torque wrench (Appendix E, Item 145)
EQUIPMENT CONDITION
Lifting device
Fifth wheel removed (para. 3-248)
Chains and attaching hardware
MATERIALS/PARTS
GENERAL SAFETY INSTRUCTIONS
Cotter pin (Appendix D, Item 63)
All personnel must stand clear during lifting
operations.
Cotter pin (Appendix D, Item 64)
Three locknuts (Appendix D, Item 309)
Locknut (Appendix D, Item 296)
installing springs under tension.
Personnel must stand clear during release of
Lockwasher (Appendix D, Item 377)
plunger rack.
Safety wire (Appendix D, Item 567)
Ensure lifting capacity is greater than weight of
fifth wheel.
a Disassembly
1.
Attach chain to fifth wheel housing (1) with two appropriately sized washers (2), screws (4),
washers (2), and nuts (3).
2.
Attach lifting device to chain. Apply tension to chain.
3.
Remove two lubrication fittings (8) from fifth wheel housing (1).
CAUTION
Do not use heat to remove pivot pins from fifth wheel housing.
Damage to equipment will result.
4.
Remove two retaining pins (6) and pivot pins (7) from fifth wheel housing (1) and base (5).
WARNING
All personnel must stand clear during lifting operations.
A swinging or shifting load may cause injury to personnel.
Ensure lifting capacity is greater than weight of fifth wheel
(600 lb) (272 kg). Failure to do so may result in injury to
personnel or damage to equipment.
5.
Remove fifth wheel housing (1) from base (5).
4-682