INSPECTION INSTRUCTIONS CONTINUED
14. Rusted Surfaces. Inspect for pitting, holes, and severe damage.
15. Oil-Bathed Internal Parts. Inspect for cracks, nicks, burrs, evidence of overheating, and wear.
16. Internal Parts. Inspect for cracks, nicks, burrs, evidence of overheating, and wear.
17. Externally Exposed Parts. Inspect for breaks, cracks, rust damage, and wear.
18. Springs. Inspect for broken, collapsed, or twisted coils.
a. Any repair procedure peculiar to a specific part or component is covered in the work package relating to
Repaired items must be thoroughly cleaned to remove metal chips and abrasives, to
prevent them from entering working parts of the machine.
b. After repair, clean all parts thoroughly to prevent dirt, metal chips, or other foreign material from entering
any working parts.
a. Only minor repairs to machined surfaces, flanges, and gasket mating surfaces are permitted. Remove
minor nicks, burrs, and scratches with:
(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.
Repair damaged threaded pipe plug or screw threads with a tap or die. Repair oversized holes with
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.
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.