TM 9-2320-260-34-1
(a) Fine mill file.
(b) Crocus cloth dipped in cleaning solvent.
(c) Lapping across a surface plate.
(3) Remachining of machined surfaces to repair damage, warpage, or uneven surfaces is not
permitted. Replace castings.
(4) Repair damaged pipe plug and/or screw threads with a tap. Repair oversize holes with threaded
inserts. Follow instructions on package or refer to MS 33537.
d. Studs. Replace all bent and stretched studs. Repair minor thread damage with a thread die. Replace
studs having stripped or damaged threads as outlined below:
(1) Remove using a stud remover. Back studs out slowly to avoid heat buildup and seizure which can
cause stud to break off.
CAUTION
Refer to TM 9-237, Operator's Manual for Welding Theory and
Application, to avoid damage to castings if welding method is used.
(2) If studs break off too short to use a stud remover, drill and use a stud extractor to remove or use
"welding method."
(3) Broken studs can be removed by welding bar stock or a nut to stud and removing with wrench.
NOTE
Standard studs may have a coarse thread on one end and a fine
thread on the other end. The coarse thread end is installed in the
aluminum casting. Studs having coarse threads on both ends are
used in some applications. The shorter threaded end goes into the
casting. Refer to TM 9-2320-260-34P for correct part numbers.
(4) Replacement studs have a special coating and must have a small amount of antiseize compound
(MIL-A-907) applied on threads before stud is installed. Install replacement stud slowly to prevent heat
buildup and stud snapping off.
e. Gears and Splined Parts.
or scratches on gear teeth.
(3) Do not machine gear or spline teeth to repair defects. Replace part.
(4) Pitted, ridged, chipped, and cracked gear or spline teeth are unrepairable. Replace part.
(5) If keyways are worn or enlarged, replace gear or shaft.
and spin in the bore, the part containing the bushing bore must be carefully checked for out-of-round condition
due to shaft or bushing backing damage. Do not install new bushing in out-of-round or oversize bore. Replace
part.
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