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 404 of 836
TM 9-2320-272-24-4
Section IV. TRANSFER CASE MAINTENANCE
THIS TASK COVERS:
a. Disassembly
b. Cleaning and Inspection
c. Assembly and Adjustment
INITIAL SETUP:
APPLICABLE MODELS
All
SPECIAL TOOLS
Crowfoot wrench (Appendix E, Item 163)
Two flange puller standoffs
(Appendix F, Item 1)
TOOLS
General mechanic’s tool kit (Appendix E. Item 1)
Mechanical puller (Appendix E, Item 102)
Torque wrench (Appendix E, Item 144)
Outside micrometer (Appendix E, Item 80)
Dial indicator (Appendix E, Item 36)
Arbor press
Feeler gauge
Prybar
Soft-faced hammer
Torque multiplier
MATERIALS/PARTS
Cylinder assembly (Appendix D, Item 92)
Seal (Appendix D, Item 254)
Three seals (Appendix D, Item 500)
Three locknuts Appendix D, Item 320)
Snapring Appendix D, Item 663)
Woodruff key (Appendix D, Item 727)
Two seals (Appendix D, Item 627)
Adhesive sealant (Appendix C, Item 4)
GAA grease (Appendix C, Item 28)
Gasket sealant (Appendix C, Item 30)
Lubricating oil (Appendix C, Item 47)
Sealing compound (Appendix C, Item 62)
PERSONNEL REQUIRED
TWO
REFERENCES (TM)
TM 9-2320-272-24P
TM 9-214
EQUIPMENT CONDITION
Transfer case removed (para. 4-94 or para. 4-95).
GENERAL SAFETY INSTRUCTIONS
Support transfer case with wood blocks before
performing disassembly.
WARNING
Transfer case is heavy. Use wood blocks to prevent transfer case
from tipping over and causing injury to personnel.
NOTE
Clean exterior of transfer case thoroughly before performing
procedure.
1.
Using crowfoot wrench, remove interlock air cylinder (1) and push rod (2) from transfer case (3).
2.
Remove eight screws (5) and inspection cover (4) from transfer case (3).
3.
Remove locknut (6) and washer (7) from output shaft (14). Discard locknut (6).
4.
Using mechanical puller, remove output flange (8) and parking brake drum (9) from output
shaft (14).
5-398
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