TM 55-2210-223-34
TO 45A2-2-14-22
3-28. MAGNETIC REVERSER SWITCH (cont)
CLEANING, INSPECTION, AND REPAIR
WARNING
Drycleaning 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, get fresh air and medical aid immediately. If contact with eyes is made, wash your eyes and get
medical aid immediately.
Compressed air used for cleaning purposes will not exceed 30 psi (207 kPa). Do not direct
compressed air against skin. Use goggles or full face shield.
NOTE
Do not file or attempt to clean movable contacts (14) and stationary contacts (33). Silver alloy surfaces on
contacts may become blackened, pitted, or eroded. These conditions will not hamper the operation of the
contactor.
15.
Use drycleaning solvent and clean metal parts. Dry with compressed air.
16.
Inspect molded parts for warpage, breaks, and cracks. Replace damaged parts.
17.
Inspect movable contacts (14) and stationary contacts (33). If alloy material is worn through to base metal,
replace contacts.
18.
Inspect magnet coil (42) for damaged insulation. Replace damaged coil.
19.
Use a multimeter and measure resistance of magnet coil (42). If resistance is not 19.8 ohms (10%), replace
coil.
20.
Use a multimeter and measure resistance of resistor (65). If resistance is not 75 ohms (5%), replace resistor.
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