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 90 of 991
TM 9-2320-272-24-2
3-249. FIFTH WHEEL APPROACH PLATES REPLACEMENT
THIS TASK COVERS:
a. Removal
b. Installation
INITIAL SETUP:
APPLICABLE MODELS
REFERENCES (TM)
M931/A1/A2, M932/A1/A2
TM 9-2320-272-10
TOOLS
TM 9-2320-272-24P
General mechanic’s tool kit (Appendix E, Item 1)
EQUIPMENT C0NDITION
MATERIALS/PARTS
• Parking brake set (TM 9-2320-272-10).
• Fifth wheel removed (para. 3-248).
Sixteen locknuts (Appendix D, Item 321)
Four lockwashers (Appendix D, Item 400)
1.
Remove four locknuts (9), (10), and (5) and screws (7), (2), and (3) from two approach plates (6),
channel (4), and frame (8). Discard locknuts (9), (10), and (5).
2.
Remove four locknuts (11), screws (1), two approach plates (6), and channel (4) from frame (8).
Discard locknuts (11).
3.
Remove four screws (12), lockwashers (13), and two reflectors (14) from approach plates (6). Discard
lockwashers (13).
b. Installation
1.
Install two reflectors (14) on approach plates (6) with four new lockwashers (13) and screws (12).
2.
Install two approach plates (6) and channel (4) on frame (8) with four screws (7), (2), and (3) and
new locknuts (9), (10), and (5).
3.
Install channel (4) on two approach plates (6) and frame (8) with four screws (1) and new locknuts (11).
FOLLOW-ON TASK:
Install fifth wheel (para. 3-248).
3-698
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