TM-9-2320-272-24-4
TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)
TECHNICAL MANUAL; UNIT, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE MANUAL; VOLUME 4 OF 4
JUNE 1998
TM-9-2320-272-24-4 - Page 636 of 836
6-107. CRANE
TM 9-2320-272-24-4
THIS TASK COVERS:
a.
Disassembly
c. Assembly
b.
Cleaning, Inspection, and Repair
INITIAL SETUP:
APPUCABLE MODELS
M936/A1/A2
TOOLS
General mechanic’s tool kit (Appendix E, Item 1)
Torque wrench (Appendix E, Item 144)
Arbor press
Mandrel
MATERIALS/PARTS
Two gearcase gaskets (Appendix D, Item 233)
Gearcase seal (Appendix D, Item 6241
Fifteen lockwashers (Appendix D, Item 350)
Two woodruff keys (Appendix D, Item 734)
Gasket (Appendix D, Item 234)
Two woodruff keys (Appendix D, Item 736)
Woodruff key (Appendix D, Item 735)
Drycleaning solvent (Appendix C, Item 71)
REFERENCES (TM)
LO 9-2320-272-12
TM 9-2320-272-24P
EQUIPMENT CONDITION
Crane swinger gearcase removed (para. 4-200).
GENERAL SAFETY INSTRUCTIONS
Keep fire extinguisher nearby when using
drycleaning solvent.
Drycleaning solvent is flammable and toxic. Do
not use near an open flame.
1.
Thoroughly clean exterior with drycleaning solvent (para. 2-14).
NOTE
2.
Have drainage container ready to catch oil.
Remove two drainplugs (8) from crane swinger gearcase (13) and drain lubricant from crane swinger
gearcase (13).
3.
4.
5.
6.
7.
8.
Reinstall two drainplugs (8) in crane swinger gearcase (13).
Remove four screws (11), lockwashers (12), shaft bearing cap (10), and gasket (9) from crane swinger
gearcase (13). Discard lockwashers (12) and gasket (9).
Remove four screws (5), lockwashers (4), gearcase motor mounting cap (6), and gasket (7) from
crane swinger gearcase (13). Discard lockwashers (4) and gasket (7).
Remove six screws (l), lockwashers (14), cover (2), and gasket (3) from crane swinger gearcase (13).
Discard lockwashers (14) and gasket (3).
Using arbor press and mandrel, remove gear shaft assembly (20) from crane swinger gearcase (13).
Remove screw (15), lockwasher (25), and retaining washer (24) from gear shaft assembly (20).
Discard lockwasher (25).
5-630
WARNING
Drycleaning solvent is flammable and toxic. Do not use near open
flame and always have a fire extinguisher nearby when solvents
are used. Use only in well-ventilated places, wear protective
clothing, and dispose of cleaning rags in approved container.
Failure to do this may result in injury or death to personnel and/or
damage to equipment.
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