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TM 5-4210-220-12
4-10. FRONT BUMPER. Continued
REMOVAL
(1)
Remove the four locknuts (4) and capscrews (5) attaching the bumper (1) and tow rings (2) to the bumper
mounting brackets. Discard the locknuts.
(2)
Remove the bumper and set it aside.
INSTALLATION
(1)
Raise the bumper (1) onto the bumper mounting brackets (3) and aline the mounting holes.
(2)
Install the capscrews (5) and new locknuts (4) attaching the tow ring (2) and the bumper (1) to the bumper
mounting bracket (3).
(3)
Tighten the capscrews and locknuts to 150 ft lb (205 Nm).
REPAIR
a Front Bumper Repair.
(1)
Inspect front bumper for bends, large dents or cracked welds.
(2)
Straighten the front bumper.
NOTE
Disconnect the batteries if performing welding procedures with bumper mounted on the truck.
(3)
Repair broken welds following procedures described in TM 9-237.
(4)
Clean bumper and paint following procedures described in para. 4-9.
b Tow Ring Repair
(1)
Inspect tow rings for oversized mounting holes or cracked welds.
(2)
Replace tow ring if any damage is found. Do not attempt to weld.
(3)
Clean tow rings and paint following procedures described in para. 4-9.
c Front Bumper Mounting Brackets Repair.
(1)
Inspect front bumper mounting brackets (3) for loose ends, bends or cracked welds.
(2)
Repair front bumper mounting brackets as detailed in para. 4-33.
4-71
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