Replacing Motor Brushes; Replacing Gear Cap - Grizzly T1239 Owner's Manual

Replacing Motor
Brushes
Motor brushes are a consumable item
inside the motor and will require replace-
ment with time. Heavy workloads and
excessive pressure on sanding head can
quickly wear motor brushes.
Motor brushes may require replacement if
motor becomes sluggish, is very slow to
start, or generates a grinding sound within
the housing.
IMPORTANT: Always
brushes as a pair to ensure even wear.
Tool Needed
Phillip Head Screwdriver #2 ..................... 1
To replace motor brushes:
1. Remove (2) Phillips head screws
securing rear motor cover and
remove cover.
2.
Carefully move brush tension spring
aside and remove brush from its
housing (see Figure 19).
Brush
(1 of 2)
Brush
Housing
Figure 19. Removing worn brush (1 of 2).
3. Install new motor brush and recon-
nect brush tension spring.
4. Repeat Step 2 for remaining motor
brush and re-install rear motor cover.
-14
-
replace motor
Qty.

Replacing Gear Cap

Each sanding head connects to the
motor using a metal gear sprocket (see
Figure 20) with a plastic gear cap. Over
time, the gear cap may become worn,
resulting in loss of power transfer to the
sanding head. Additional gear caps are
provided on the triangular sanding head
(see Figure 20).
To replace the gear cap, carefully remove
the worn gear cap with a pair of pliers,
and place a new cap over the metal gear
sprocket.
Gear Cap
Extra
Caps
Figure 20. Replacing gear cap.
Model T1239 (Mfd. Since 09/17)
Metal Gear
Sprocket