4-12, CLEANING INSTRUCTIONS (Con't).
e. Castings, Forgings, and Machined Metal Parts.
Dry cleaning solvent P-D-680 is toxic and flammable. Always wear protective goggles
and gloves, and use only in a well-ventilated area. Avoid contact with skin, eyes, and
clothes, and DO NOT breathe vapors. DO NOT use near open flame or excessive
heat. The solvent's flash point is 100F-130F (38C-59C), If you become dizzy
while using cleaning solvent, immediately get fresh air and medical help. If solvent
contacts eyes, immediately wash your eyes and get medical aid.
(1) Clean inner and outer surfaces with dry cleaning solvent (Item 10, Appendix E).
(2) Remove grease and accumulated deposits with a stiff bristle brush.
Compressed air used for cleaning and drying purposes, or for clearing restrictions,
should never exceed 30 psi (207 kPa). Wear protective clothing (goggles/shield,
gloves, etc. ) and use caution to avoid injury to personnel.
(3) Use compressed air to remove dirt and cleaning fluids from all threaded holes.
f. Electrical Cables and Flexible Hoses.
Do not wash electrical cables and flexible hoses with dry cleaning solvent or mineral
spirits. Failure to follow this caution will seriously damage or destroy the material.
Wash electrical cables and flexible hoses with soap (Item 4, Appendix E) and water solution and wipe
g. Bearings. Refer to TM 9-214 for instructions on the inspection, care, and maintenance of antifriction
4-13. INSPECTION INSTRUCTIONS.
All components and parts must be checked carefully to determine if they are serviceable for reuse,
Specific inspection instructions are as follows:
Drilled and Threaded Holes and Surfaces.
(1) Inspect for wear, distortion, cracks, or any other damage in or around holes and threaded
(2) Inspect threaded areas for evidence of cross threading.
(3) Mark all damaged areas for repair or replacement.
Metal Lines, Flexible Lines (Hoses), and Metal Fittings.
(1) Inspect flexible lines for fraying, evidence of leakage, or loose metal fittings or connectors.
(2) Inspect metal lines for sharp kinks, cracks, and bad bends or dents.
Bushings. Inspect bushings for excessive wear, elongation, or grooving.
Machined Surfaces. Inspect machined surfaces for scoring or other obvious damage.