3-37. MAIN GENERATOR (cont)
CLEANING, INSPECTION, AND REPAIR (cont)
24. Clean, inspect, and repair armature assembly by the following:
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 immediately and get
medical aid. 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.
Check that drycleaning solvent does not get on commutator, copper
parts, coils, and windings. Damage to equipment will result.
a. Blow carbon dust from armature assembly with compressed air. Direct air into the pockets and through the
openings of the armature to remove internal accumulations of dirt.
b. Use a wiping rag dampened with drycleaning solvent and wipe armature surface to remove external grease and
dirt. Dry with compressed air.
c. Inspect for journal damage. If journal shows signs of bearing slippage, replace armature.
If varnished surfaces of coil insulation are damaged, repair at depot level maintenance facility.
d. Inspect varnished surfaces of coil insulation. Replace insulation if blistered, flaked, or cracked.