TM 5-3805-292-23
0172
REPAIR INSTRUCTIONS CONTINUED
2. Castings.
a. Only minor repairs to machined surfaces, flanges, and gasket mating surfaces are permitted. Remove
minor nicks, burrs, and scratches with:
(1) Fine-mill file.
(2) Crocus cloth dipped in solvent cleaning compound.
(3) Lapping across a surface plate.
b. Remachining of machined surfaces to repair damage, warpage, or uneven surfaces is not permitted.
Replace castings.
c.
Repair damaged threaded pipe plug or screw threads with a tap or die. Repair oversized holes with
threaded inserts.
3. Studs.
a. Repair minor thread damage with a thread die.
b. Replace studs having stripped or damaged threads as described below:
(1) Remove using a stud remover. Back studs out slowly to avoid heat buildup and seizure that can cause
stud to break off.
C AU T I O N
Refer to TC 9-237, Operator's Circular, 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, use a stud extractor to remove or use "welding
method": weld bar stock or a nut to stud and remove with a wrench.
(3) Install replacement stud slowly to prevent heat buildup and break-off.
4. Gears.
a. Remove gears using pullers.
b. Only minor repairs to gears are permitted. Remove minor nicks, burrs, or scratches on gear teeth with:
(1) Fine-mill file.
(2) Crocus cloth dipped in solvent cleaning compound.
5. Bushings and Bushing-Type Bearings.
a. When bushings and bushing-type bearings seize to a shaft and spin in the bore, associated parts must
also be replaced.
b. It may be necessary to heat bearings to aid in installation.
6. Oil Seals.
a. Remove oil seals by pressing or prying out, being careful not to damage casting or adapter bore.
b. Always install new seal in bore using proper seal installation tool.
7. Painting. Upon installation, restored parts must be painted in accordance with TB 43-0209.
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