4-21. MOTOR BRUSHES
This task covers:
General Safety Instructions
Tool Kit, Service Refrigeration Unit
The ignition system of this heater contains
dangerous voltages which can cause severe electri-
cal shock. Be sure to disconnect power before any
Power disconnected and fuel supply turned off
Clean parts in a well-ventilated area. Avoid inha-
lation of solvent fumes and prolonged exposure of
skin to cleaning solvent. Wash exposed skin
thoroughly. Dry cleaning solvent is potentially
dangerous to personnel. Do not use near open
flames or excessive heat. Flash point is 140
Remove cap (1) securing brushes (top and bottom) (2) in motor (3). Remove brushes from motor.
A new brush is about 1/2 inch long.
Inspect the spring and brush assembly for uneven wear, scoring, pitting, or other damage. Replace the brush if worn to
less than 5/16 inch.