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 400 of 1015
3-9. FRONT
TM 9-2320-272-24-1
THIS TASK COVERS:
a. Removal
b. Inspection
c. Installation
INITIAL SETUP:
APPLICABLE MODELS
REFERENCES (TM)
M939/A1
TM 9-2320-272-10
TOOLS
TM 9-2320-272-24P
General mechanic’s tool kit (Appendix E, Item 1)
EQUIPMENT CONDITION
MATERIALS/PARTS
Parking brake set (TM 9-2320-272-10).
Hood raised and secured (TM 9-2320-272-10).
Two bushings (Appendix D, Item 23)
Antiseize tape (Appendix C. Item 72)
Left splash shield removed (TM 9-2320-272-10).
NOTE
Have adequate drainage container ready to catch oil.
1.
Loosen two nuts (4) on sump tube (5), and slide nuts (4) toward center of front sump tube (5).
2.
Tighten elbow (3) 1/4 turn to free sump tube (5). Remove sump tube (5) from adapter (6) and
elbow (3).
3.
Remove two bushings (7) from sump tube (5). Discard bushings (7).
NOTE
Mark position of elbow for installation.
4.
Remove adapter (6) from oil pan (2), and elbow (3) from oil pump (1).
1.
Inspect two nuts (4), elbow (3), and adapter (6). Replace nuts (4), elbow (3), or adapter (6) if threads
are damaged.
2.
Inspect sump tube (5). Replace if cracked.
1.
Apply antiseize tape to male pipe threads of adapter (6) and elbow (3).
NOTE
Ensure elbow is less than 1/8 turn from final position to allow
room for installation of front sump tube.
2.
Install adapter (6) on oil pan (2), and elbow (3) on oil pump (1).
3.
Install two nuts (4) and new bushings (7) on sump tube (5), and slide toward center of sump tube (5).
4.
Position one end of sump tube (5) on adapter (6), and start elbow (3) in other end of sump tube (5).
Turn elbow (3) to tighten into final position, pressing front sump tube (5) into elbow (3) and aligning
front sump tube (5) with elbow (3).
5.
Connect sump tube (5) to adapter (6) and elbow (3) by tightening two nuts (4).
3-36
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