3-62. TRACTION MOTOR ASSEMBLY (cont)
CLEANING, INSPECTION, AND REPAIR (cont)
c. Check that shunt and interpole fields are tight.
d. Paint insulation surfaces with red insulating vanish.
34. Clean, inspect, and repair brush holder 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.
a. Use drycleaning solvent and clean brush holder assemblies. Dry with compressed air.
b. Inspect brush holder for wear, cracks, or breaks. Replace defective brush holder.
c. Inspect insulators for breaks, cracks, burns, or dull surface. Replace defective insulators by pressing off stud and
pressing on new one.
d. Inspect studs for cracks or breaks. Replace defective studs by pressing out of brush holder and pressing in new
e. Inspect spring assemblies for tension and check that braiding is not frayed. Replace defective spring
Do not spray inside of brushed holder.
f. Paint brush holders with clear acrylic spray.