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TM 9-2320-360-34-1
7-2. GENERAL MAINTENANCE INSTRUCTIONS (CONT)
WARNING
Dry cleaning solvent P-D-680 Is toxic and flammable. Wear protective goggles and
gloves and use only In a well-ventilated area. Avoid contact with skin, eyes, and
clothes, and don't breathe vapors. DO NOT use near open flame or excessive heat.
The flash point Is 100-138° F (38-59° C). If you become dizzy while using cleaning
solvent, get fresh air immediately and medical aid. If contact with eyes is made,
wash your eyes with water and get medical aid immediately.
CAUTION
DO NOT use caustic soda solution in place of steam cleaning method. Use only
dry cleaning solvent to clean friction-faced clutch plates.
(2)
Thoroughly clean metal transmission parts, except bearings, with dry cleaning solvent (Item 54, Appendix
B) or by steam cleaning method.
WARNING
Compressed air for cleaning purposes will not exceed 30 psi (207 kPa). Use only
with effective chip guarding and personal protective equipment (goggles/shield,
gloves, etc.).
(3)
Drip-dry and air-dry bearings, then oil (Item 44, Appendix B). Dry other parts with compressed air. Oil
steam-cleaned parts immediately after drying to prevent rust.
(4)
Clean oil passages by working a piece of soft wire back and forth through them. Flush with dry cleaning
solvent (Item 54, Appendix B). Dry with compressed air.
c.
Inspection. Follow these inspection instructions when working on the transmission.
(1)
Inspect all surfaces which contact gaskets, packing, or seals. Ensure there are no nicks, burrs, or
scratches. Remove or correct any defect with crocus cloth (Item 16, Appendix B) before assembly.
(2)
Inspect all bores for wear, scratches, grooves, burrs, or dirt. Remove scratches and burrs with crocus cloth
(Item 16, Appendix B) and clean. Remove all foreign matter from bores and clean. Replace all deeply
scratched, grooved, and excessively worn parts.
(3)
Inspect splined parts for stripped, twisted, chipped, or burred splines. Remove burrs with soft stone and
replace parts if other defects are found. Spline wear is not considered defective except when it affects
tightness of the assembly.
(4)
Inspect springs for signs of overheating, permanent set, or wear due to rubbing of adjacent parts. Replace
springs if damage is found.
Section III. MAINTENANCE PROCEDURES
7-2
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