4-17. INSPECTION INSTRUCTIONS.
All damaged areas must be marked for repair or replacement.
a. All components and parts must be carefully checked to determine if they are serviceable for use, can be
repaired, or must be scrapped.
b. Inspect drilled and tapped (threaded) holes for the following:
(1) Wear, distortion, cracks, and any other damage in or around holes.
(2) Wear, distortion (stretching), and evidence of cross-threading in threaded areas.
c. Inspect flexible lines (hoses) and metal fittings for the following:
(1) Sharp kinks, cracks, bad bends, and dents in metal lines.
(2) Fraying, evidence of Ieakage, and hose metal fittings or connectors in flexible tines.
(3) Thread damage and worn or rounded hex heads in metal fittings and connectors.
d. Inspect castings, forgings, and machined metal parts for the following:
(1) Nicks, burrs, raised metal, wear, and other damage in machined surfaces.
(2) Breaks and cracks in inner and outer surfaces.
e. Inspect airlines, fittings, and connectors for leaks by costing them with a solution of soap and water. No
leakage is permissible.
f. Inspect bearings in accordance with TM 9-214.
4-18. REPAIR INSTRUCTIONS.
a. Repair castings, forgings, and machined metal parts as follows:
(1) Repair minor cracked castings or forgings in accordance with TM 9-237.
(2) Repair minor damage to machined surfaces with a fine mill fife or an abrasive cloth dipped in dry
cleaning solvent (Item 14, Appendix E).
(3) Replace any deeply nicked machined surfaces that could affect the assembly operation.
(4) Repair minor damage to threaded capscrew holes with thread tap of same size, to prevent cutting
b. After repair, thoroughly clean all parts to prevent dirt, metal chips, or other foreign material from entering
any working parts.