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 TM 9-2330-326-14&P
7-3. SUSPENSION REPLACEMENT.
This Task Covers:
a. Removal
b. Installation
c. Follow-On Tasks
Initial Setup:
Tools and Special Tools:
Equipment Conditions:
Tool kit, general mechanic's (Item 4, Appendix B-3)
Landing legs down
Shop equipment auto repair, FM basic (Item 3,
Semitrailer disconnected from prime mover
Floor jacks
Rear of semitrailer supported by jack stands
Jack stands
Tires and wheels removed (para. 6-18)
Hubs and brake drums removed (para. 6-9)
Personnel Require d:
References:
Two
Appendix H-38
WARNING
Jack must be positioned directly under axle to prevent slippage.
Direct all personnel to stay clear of vehicle when vehicle is
supported in the air. Failure to do so could result in serious
injury and damage to equipment.
To prevent shifting of trailer, floor jack should be used only on a
hard, level surface. Use ground boards (Paragraph 6-24), if
necessary.
NOTE
See Appendix-38 for technical data on suspension system.
a. Removal.
1.
Remove eight bolts (1), washers (24), and locknuts (23) from trunnion center support. Discard
locknuts.
2.
Remove four hex bolts (2) and hex nuts (6) from two bottom brackets of trunnion center support.
WARNING
The trunnion must be firmly supported with jack stands or floor
jacks prior to performing steps 3 and 4.
3.
Remove four hex nuts (22), washers (21), and top plate (9) from two trunnion U-bolts (10) and
separate lower trunnion hub (20) from upper trunnion hub (18).
4.
Repeat step 3 on opposite side of semitrailer.
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