Replacing Brushes - Grizzly G0920 Owner's Manual

8. At each end of pressure roller that requires
adjustment, tighten set shown in Figure 68
an equal amount.
Figure 68. Pressure roller adjustment set screw.
— Rotate screws clockwise to lower pressure
roller or counterclockwise to raise pres-
sure roller.
9. Adjust rollers until they are 0.004" (0.1mm)
lower than height of the drum.
10. Close drum door and secure with drum door
lock knob.
Model G0920 (Mfd. Since 10/20)

Replacing Brushes

This sander is equipped with a universal motor
that uses two carbon brushes to transmit elec-
trical current inside the motor. These brushes
are considered to be regular "wear items" or
"consumables" that will need to be replaced dur-
ing the life of the motor. The frequency of required
replacement is often related to how much the
motor is used and how hard it is pushed.
Replace the carbon brushes at the same
time when the motor no longer reaches full
power, or when the brushes measure less
than ⁄ " long (new brushes are
1
4
If your machine is used frequently, we recom-
mend keeping an extra set of these replacement
brushes on-hand to avoid any downtime.
Tools Needed:
Flat Head Screwdriver
Pair of Motor Brushes (P0920171) ..................... 1
To replace motor brushes:
1.
DISCONNECT MACHINE FROM POWER!
2.
Remove brush caps and worn brushes (see
Figure 69) from conveyor belt motor.
Brush
Caps
Figure 69. Location of motor cover cap screws.
3.
Replace both motor brushes and install brush
caps.
⁄ " long).
5
8
Qty
/ ................................... 1
1
4
Brush
(1 of 2)
-45-