3-64. TRACTION MOTOR ASSEMBLY (cont)
CLEANING, INSPECTION, AND REPAIR (cont)
Check that shunt and interpole fields are tight.
Do not paint machined surfaces.
Paint insulation surfaces with electrical insulating paint.
Clean, inspect, and repair brush holders (25) 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.
Use drycleaning solvent and clean brush holders. Dry with compressed air.
Inspect brush holders for wear, cracks, and breaks. Replace defective brush holder.
Inspect insulators for breaks, cracks, burns, and dull surface. Replace defective insulators by pressing off stud
and pressing new one on.
Inspect studs for cracks and breaks. Replace defective studs by pressing out of brush holder and pressing new
Inspect spring assemblies for tension and check that braiding is not frayed. Replace defective spring
Do not paint inside of brush holders.
Paint brush holders with clear acrylic lacquer.