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 94 of 991
TM 9-2320-272-24-2
3-253. TRACTOR SPARE TIRE CARRIER (M931, M932) REPLACEMENT
THIS TASK COVERS:
a. Removal
b. Installation
INITIAL SETUP:
APPLICABLE MODELS
M931, M932
TOOLS
REFERENCES (TM)
TM 9-2320-272-10
TM 9-2320-272-24P
• Toolbox removed (para. 3-250).
• Carrier access steps removed (para. 3-255).
Four locknuts (Appendix D, Item 294)
PERSONNEL REQUIRED
Two
General mechanic's tool kit (Appendix E Item 1)
MATERIALS/PARTS
• Parking brake set (TM 9-2320-272-10).
• Spare tire removed (TM 9-2320-272-10).
EQUIPMENT CONDITION
1.
Loosen retaining pin (2) and remove boom extension (1) from boom (3).
2.
Loosen screw (4) and remove boom (3) from boom support (5).
3.
Remove two locknuts (8) and (11) and screws (6) and (12) from frame rail brackets (9) and (10) and
carrier base (7). Discard locknuts (8) and (11).
4.
Remove carrier base (7) from frame rail brackets (9) and (10).
1.
2.
3.
4.
5.
6.
Position carrier base (7) on frame rail brackets (9) and (10).
Align carrier base (7) with frame rail brackets (9) and (10) and install two screws (6) and (12) and
new locknuts (8) and (11).
Install boom (3) on boom support (5).
NOTE
Ensure screw is tightened against preset grove in boom support.
Tighten screw (4) on boom (3).
Install boom extension (1) on boom (3).
Tighten retaining pin (2) in boom extension (1) and boom (3).
3-702
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