TM 5-3805-262-20CLEANINGDry cleaning solvent P-D-680 used to clean parts is toxic and flammable.W e a r p r o t e c t i v e g o g g l e s a n d g l o v e s a n d u s e o n l y i n a w e l l v e n t i l a t e da r e a . A v o i d c o n t a c t w i t h s k i n ,e y e s a n d c l o t h e s a n d d o n ’ t b r e a t h ev a p o r s .Do not use near open flame or excessive heat and don’t smokewhen using it. Failure to do so could cause serious injury. If you be-c o m e d i z z y w h i l e u s i n g c l e a n i n g s o l v e n t , g e t f r e s h a i r a n d m e d i c a la t t e n t i o n i m m e d i a t e l y .If contact with skin or clothes is made, flushwith large amounts of water.I f c o n t a c t w i t h e y e s i s m a d e , w a s h e y e swith water and get medical aid immediately.a. Wipe exterior of micro switches (5 and 14) using clean cloth moistened withcleaning solvent P-D-680. Dry using clean cloths,b. Clean wire insulation using clean cloth moistened with detergent. Dry usingc l e a n c l o t h.c. Clean terminals using clean cloth moistened with isopropyl alcohol.d. Clean all other metallic parts using clean cloth moistened with cleaning sol-vent P-D-680. Dry using clean cloths.INSPECTION, TESTING, AND REPAIRa. Inspect ground wire (22) and wiring harnesses (19 and 27) wires for cracked orbroken insulation or broken wire strands at connection to terminals. Repaircracked or broken insulation by applying insulation tape to area. If brokenwire strands are seens replace ground wire (22) or wiring harness (19 or 27).b. Inspect brown-white and blue-white wire terminals (26) and front wiring har-ness terminal (23) wires for cracked or broken insulation or broken wires t r a n d s a t c o n n e c t i o n t o t e r m i n a l s . R e p a i r c r a c k e d o r b r o k e n i n s u l a t i o n b y applying insulation tape to area. If broken wire strands are seen, cut wire asclose to terminal as possible. Strip 1/4 inch insulation from end of wire tak-ing care not to cut through wire then crimp new terminal securely onto wire.c. Inspect micro switches (5 and 14) for cracks, breaks, damaged threads, seizedr o l l e r , d i s t o r t i o n, or other damage. Connect multimeter between micro switchCOM and NC terminals as shown below and watch multimeter. When you pressroller with thumb, switch should click and multimeter should indicate noc o n t i n u i t y ( o p e n c i r c u i t ) . When you release roller, switch should click andmultimeter should indicate continuity. If any of the above conditions are seenor if proper multimeter indications are notobtained, replace micro switch.d. Inspect remaining parts for cracks, breaks, dis-tortion, or damaged threads; replace as necessary.5-71
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