TM-9-2320-280-34
TRUCK, UTILITY: M998 SERIES
TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE
JANUARY 1996
TM-9-2320-280-34 - Page 593 of 1258
TM 9-2320-280-34
12-20. REAR SUSPENSION FRONT CROSSMEMBER REPLACEMENT (Cont ’d
This task covers:
a.
Removal
b.
Installation
INITIAL SETUP:
Tools
Equipment Condition
General mechanic's tool kit:
Differential support brackets and side mounting
automotive (Appendix G, Item 1)
brackets removed (para. 12-16).
Rear-rear tiedown brackets removed (para. 12-
13).
Materials/Parts
Rear lower control arms removed C(TM 92320-
280-20).
Ten locknuts (Appendix E, Item 62)
Pioneer tool tray removed (TM 9-2320-280-10).
Manual References
General Safety Instructions
TM 9-2320-280-10
Crossmember must be supported during removal.
TM 9-2320-280-20
TM 9-2320-280-24P
Maintenance Level
Direct support
a.
Removal
WARNING
Crossmember must be supported during removal. Failure to
support crossmember during removal may cause injury to
personnel or damage to equipment.
1.
Remove four locknuts (4), washers (3), capscrews (2), and washers (3) from rear crossmember (7) and
frame rails (1). Discard locknuts (4).
2.
Loosen six locknuts (9) on rear crossmember mounting brackets (8) and rear crossmember (7).
3.
Slide rear crossmember (7) down and out from under vehicle.
4.
Remove six locknuts (9), washers (5), capscrews (6), washers (5), and two rear crossmember mounting
brackets (8) from rear crossmember (7). Discard locknuts (9).
5.
Remove tool tray mounting bracket (TM 9-2320-280-20).
b.
Installation
1.
Install tool tray mounting bracket (TM 9-2320-280-20).
2.
Install two crossmember mounting brackets (8) on rear crossmember (7) with six washers (5),
capscrews (6), washers (5), and locknuts (9).
3.
Install rear crossmember (7) on frame rails (1) with four washers (3), capscrews (2), washers (3), and
locknuts (4). Tighten locknuts (4) to 260 lb-ft (353 N.m).
4.
Tighten six locknuts (9) to 90 lb-ft (122 N.m).
12-36
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