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 370 of 836
TM 9-2320-272-24-4
5-55. REAR COVER AND LOW PLANETARY CARRIER MAINTENANCE
THIS TASK COVERS:
a. Removal
b. Disassembly
c. Cleaning and Inspection
d. Assembly
INITIAL SETUP:
APPLICABLE MODELS
MATERIALS/PARTS
All
SPECIAL TOOLS
Driver handle (Appendix E, Item 38)
Spring compressor (Appendix E, Item 31)
Rear bearing installer (Appendix E, Item 115)
Driver handle (Appendix E, Item 37)
Seal remover (Appendix E, Item 92)
Converter turbine bearing puller
(Appendix E, Item 105)
Pin remover (Appendix E, Item 94)
Bearing installer (Appendix E, Item 10)
‘Iwo guide pliers (Appendix E, Item 59)
Tools
General mechanic’s tool kit (Appendix E, Item 1)
Outside micrometer (Appendix-E, Item 80)
Vernier calipers (Appendix E, Item 159)
Spring tester (Appendix E, Item 131)
Torque wrench (Appendix E, Item 144)
Arbor press
Low clutch piston inner seal ring
(Appendix D, Item 259)
Low clutch piston outer seal ring
(Appendix D, Item 509)
Gasket (Appendix D, Item 228)
Crocus cloth (Appendix C, Item 20)
Oil-soluble grease (Appendix C, Item 53)
REFERENCES (TM)
TM 9-2320-272-24P
EQUIPMENT CONDITION
Transmission governor removed (para. 5-54).
Transmission output shaft oil seal removed
(para. 4-78).
SPECIAL ENVIRONMENTAL CONDITIONS
Work area clean and free from blowing dirt and
dust.
a.
Removal
NOTE
Turn transmission housing with rear cover facing upward.
1.
Remove fourteen screws (1) and washers (5) from rear cover (2).
NOTE
Clean gasket remains from mating surfaces.
2.
Remove rear cover (2), low planetary carrier (9), gasket (4), and thrust washer (10) from
transmission housing (3). Discard gasket (4).
3.
Remove sleeve spacer (6), speedometer drive gear (7), and governor drive gear (8) from low
planetary carrier (9).
5-364
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