TM-9-2320-272-24-1
TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)
TECHNICAL MANUAL; UNIT, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE MANUAL; VOLUME 1 OF 4
JUNE 1998
TM-9-2320-272-24-1 - Page 776 of 1015
TM 9-2320-272-24-1
3-150. TRANSFER CASE TO FORWARD-REAR AXLE PROPELLER SHAFT MAINTENANCE
THIS TASK COVERS:
a. Removal
b. Disassembly
c. Cleaning and Inspection
d. Assembly
e. Installation
INITIAL SETUP:
APPLICABLE MODELS
M927/A1/A2, M928/A1/A2, M934/A1/A2,
M935/A1/A2
TOOLS
General mechanic’s tool kit (Appendix E, Item 1)
Torque wrench (Appendix E, Item 146)
MATERIALS/PARTS
Twenty-two locknuts (M939A2 old
configuration) (Appendix D, Item 291)
Sixteen locknuts (Appendix D, Item 291)
Two universal plates (Appendix D, Item 704)
Cotter pin (M939/A1 old configuration)
(Appendix D, Item 80)
Twelve locknuts (M939/A1 old configuration)
(Appendix D, Item 291)
Drycleaning solvent (Appendix C, Item 71)
GAA Grease (Appendix C, Item 28)
REFERENCES (TM)
LO 9-2320-272-12
TM 9-2320-272-10
TM 9-2320-272-24P
EQUIPMENT CONDITION
l
Parking brake set (TM 9-2320-272-10).
l
Wheels chocked (TM 9-2320-272-10).
GENERAL SAFETY INSTRUCTIONS
l
Drycleaning solvent is hazardous and flammable.
Do not use near open flame.
l
Keep fire extinguisher nearby when drycleaning
solvent is used.
a. Removal
1.
2.
3.
4.
5.
6.
7.
8.
9.
Remove eight locknuts (3) from transfer case brake drum (1) and transfer case shaft yoke
flange (2). Discard locknuts (3).
Remove eight screws (13), locknuts (12), and rear propeller shaft yoke flange (14) from forward-rear
axle yoke flange (11). Discard locknuts (12).
Remove forward propeller shaft front section (4) from forward propeller shaft aft section (24).
Remove dustcover (5) and spacer (6) from forward propeller shaft front section (4).
NOTE
l
Perform steps 5 through 14 only for vehicles equipped with old
forward-rear axle propeller shaft.
l
Perform steps 5 through 9 for models M927/A1, M928/A1,
M934/A1, and M935/A1 models only.
Remove eight screws (17) and locknuts (21) from rear propeller shaft companion flange (16) and
center bearing companion flange (20). Discard locknuts (21).
Remove forward-rear axle propeller shaft (15) and center bearing flange (20) from center bearing
bracket (10).
Remove four screws (8) and locknuts (7) from center bearing mounting bracket (10) and cross-
member (9). Discard locknuts (7).
Remove cotter pin (18) and nut (19) from forward propeller shaft (4). Discard cotter pin (18).
Remove center bearing companion flange (20), dustcover (22), spacer (23), center bearing mounting
bracket (l0), spacer (6), and dustcover (5) from forward propeller shaft (4).
3-412
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