TM-9-2320-272-24-3
TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)
TECHNICAL MANUAL; UNIT, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE MANUAL; VOLUME 3 OF 4
JUNE 1998
TM-9-2320-272-24-3 - Page 546 of 799
TM 9-2320-272-24-3
4-172. FRONT WINCH REPAIR
THIS TASK COVERS:
a. Disassembly into Subassemblies
b. Disassembly of Subassemblies
c. Cleaning, Inspection, and Repair
d. Assembly of Subassemblies
e. Assembly of Winch
INITIAL SETUP:
APPLICABLE MODELS
MATERIALS/PARTS (Contd)
M925/A1/A2, M928/A1/A2, M930/A1/A2,
M932/A1/A2, M936/A1/A2
TOOLS
General mechanic’s tool kit (Appendix E, Item 1)
Spring tester (Appendix E. Item 132)
Outside micrometer (Appendix E, Item 80)
Inside micrometer (Appendix E, Item 83)
Dial indicator (Appendix E, Item 36)
Puller kit (Appendix E, Item 101)
Mallet
Arbor press
Soft-faced hammer
Chain
Lifting device
MATERIALS/PARTS
Cotter pin (Appendix D, Item 46)
Two gaskets (Appendix D, Item 214)
Two seals (Appendix D, Item 607)
Nine lockwashers (Appendix D, Item 350)
Two keys (Appendix D, Item 265)
Four lockwashers (Appendix D, Item 393)
Seal (Appendix D, Item 608)
Gasket (Appendix D, Item 212)
Woodruff key (Appendix D, Item 731)
Woodruff key (Appendix D, Item 730)
Gasket (Appendix D, Item 214)
Gasket (Appendix D, Item 213)
Four lockwashers (Appendix D, Item 377)
GAA grease (Appendix C, Item 28)
Sealing compound (Appendix C, Item 65)
Rag (Appendix C, Item 58)
REFERENCES (TM)
TM 9-2320-272-10
TM 9-2320-272-24P
EQUIPMENT CONDITION
l
Parking brake set (TM 9-2320-272-10).
l
Front winch removed (para. 3-329).
l
Winch oil drained (LO 9-2320-272-12).
l
Winch roller removed (para. 4-175).
l
Winch cable tensioner removed (para. 4-173).
l
Winch level wind removed (if equipped)
(para. 4-174).
GENERAL SAFETY INSTRUCTIONS
Use hoist during front winch repair to prevent
injury to personnel.
WARNING
Vehicle front winch weighs 353 lb (160 kg), except the M936/A1/A2
winch, which weighs 472 lbs (214 kg). Use hoist during repair to
prevent injury to personnel.
a. Disassembly into Subassemblies
1.
Remove four screws (3), lockwashers (4), and top channel (2) from winch (1). Discard lockwashers (4).
2.
Remove four screws (6), lockwashers (5), and rear channel (7) from winch (1). Discard lockwashers (5).
3.
Remove drag brake adjusting screw (12) and spring (13) from end frame (8).
4.
Remove nut (11) from end of tie rod (10).
NOTE
Support drum with overhead hoist and chain.
5.
Separate end frame (8) from drum (15) and drum shaft (14).
4-810
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