TM-9-2320-272-24-2
TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)
TECHNICAL MANUAL; UNIT, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE MANUAL; VOLUME 2 OF 4
JUNE 1998
TM-9-2320-272-24-2 - Page 102 of 991
TM 9-2320-272-24-2
3-255. DUMP AND TRACTOR SPARE TIRE CARRIER ACCESS STEP REPLACEMENT
THIS TASK COVERS:
a. Removal
b. Installation
INITIAL SETUP:
APPLICABLE MODELS
REFERENCES (TM)
M929/A1/A2, M930/A1/A2, M931/A1/A2,
TM 9-2320-272-10
M932/A1/A2
TM 9-2320-272-24P
TOOLS
General mechanic’s tool kit (Appendix E, Item 1)
MATERIALS/PARTS
Sixteen locknuts (Appendix D, Item 291)
Two locknuts (Appendix D, Item 313)
Rags (Appendix C, Item 58)
EQUIPMENT CONDITION
Parking brake set (TM 9-2320-272-10).
Toolbox removed if required for access (para. 3-250).
GENERAL SAFETY INSTRUCTIONS
Do not perform task near open flame.
WARNING
Diesel fuel is highly flammable. Do not perform this procedure
near open flame. Injury to personnel may result.
NOTE
This procedure is the same for right and left spare tire carrier
access steps.
1.
Remove two locknuts (14), screws
Discard locknuts (14).
2.
Remove six locknuts (20), washer:
(16), and reflector bracket (15) from carrier access step (9).
(19), screws (18), and fuel can bracket (21) from carrier
base (2) and step (9). Discard locknuts (20).
NOTE
Perform step 3 for vehicles with top fill tank.
Vehicles may have one or two fuel cap covers. Perform step 3 for
both fuel cap covers.
3.
Lift fuel cap cover (6) and remove fuel cap (4) and chain and strainer assembly (5) from fuel tank (10).
Wrap chain and strainer assembly (5) with rag. Cover fuel tank opening with rags.
4.
Remove four locknuts (13), screws (1), two step brackets (17), and carrier access step (9) from
carrier base (2). Discard locknuts (13).
5.
Remove four locknuts (11), screws (12), and two step brackets (17) from carrier access step (9).
Discard locknuts (11).
NOTE
Perform step 6 for M931/A1/A2 and M932/A1/A2 models.
6.
Remove two locknuts (3), screws (7), washers (8), and fuel tank cap cover (6) from carrier access
step (9). Discard locknuts (3).
3-710
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