TM 9-2320-289-34
9-4.
FRAME REPAIR (Con’t).
b.
LOOSE RIVET REPLACEMENT
Use only effective chip
(goggles/shield, gloves,
WARNING
guarding and personnel protective equipment
etc.) when using drill. Failure to follow this
warning may result in injury to personnel,
CAUTION
l
l
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Welding is not an approved or acceptable alternate method of repair for
any rivet attachment on frame. Only use the following procedure,
Failure to follow this caution may result in damage to frame assembly.
Use only SAE Grade 8 bolts and nuts to replace rivets. Failure to follow
this caution may result in weak frame attachments.
Rivets should be removed with rivet buster (NSN 5100-00-293-0556).
DO NOT use an ordinary chisel for this purpose. Failure to follow this
caution will elongate rivet hole and cause any future bolting to be
seriously weakened.
NOTE
When bolt is used to replace rivet on top or bottom flange of side rail, bolt
must be installed from top down.
1 .
Remove rivet by shearing rivet head with rivet buster. Remove rest of rivet body from rivet hole
using drift punch and hammer.
2 .
Using appropriate electric drill and 7/16 in. drill bit, drill out existing hole.
3 .
Install a 7/16 in. -14 appropriate length hex head bolt, 7/16 in. “HEAVY” classification Iockwasher,
and 7/16 in. hex nut.
4 .
Tighten hex nut to 55-65 lb. -ft. (75-88 N.m).
c .
DAMAGED BRACKET REPLACEMENT
WARNING
Use only effective chip guarding and personnel protective equipment
(goggles/shield, gloves, etc.) when using drill.
warning may result in injury to personnel.
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l
CAUTION
Use only SAE Grade 8 bolts and nuts to replace
Failure to follow this
rivets. Failure to follow
this caution may result in weak frame attachments.
Rivets should be removed with rivet buster (NSN 5100-00-293-0556),
DO NOT use an ordinary chisel for this purpose. Failure to follow this
caution will elongate rivet hole and cause any future bolting to be
seriously weakened.
9-8
