Grizzly G0704 - Manual (Page 45)

Model G0704 (Mfg. Since 08/11)
-43-
Motor Service
the bearings inside the motor are shielded and
lubricated for the life of the bearing and require no
routine maintenance.
this motor is equipped with long life carbon
brushes. brush life expectancy is affected by
motor loading. heavy motor loading will result in
reduced brush life. if you notice a loss in power or
if the motor becomes excessively noisy, inspect
the brushes. if the brushes are worn down to
1 ⁄
4
''
(6mm) or less, it is time to replace them. When
checking brushes, be sure to return each brush to
the same hole in the same direction that it came
from. When replacing old brushes, replace both
brushes at the same time.
Tools Needed: Qty
hex Wrench 3mm .............................................. 1
standard screwdriver #2 ................................... 1
To inspect and replace the motor brushes:
1. disConneCt mill/drill From poWer!
2. un-install the motor cover by removing the
four cap screws that secure it ( figure 60).
figure 60. Removing motor cover.
motor Cover
Cap screw (1 of 4)
3. unscrew one of the brush caps to expose the
brush assembly ( figure 61).
figure 61. Removing brush cap.
figure 62. Installing new brush assembly.
4. remove the old brush assembly. if the brush
is worn down to less than 1 ⁄
4
'' (6mm) then
replace it with a new one. otherwise re-install
the brush (
figure 62).
5. replace the brush cap to secure the brush in
place.
6. repeat for second brush assembly on the
other side of the motor.
brush Cap
brush
assembly