Motor Brushes; Replacing Timing Belt - Grizzly G0734 Owner's Manual

Motor Brushes

The motor brushes wear with use. When they
require replacement, the motor will stop operat-
ing correctly, fail to start, or cut in and out during
operation.
Tools Needed
Flat Head Screwdriver ....................................... 1
To inspect/replace the motor brushes:
1.
DISCONNECT MACHINE FROM POWER!
2.
Remove the top motor brush cap and motor
brush, as shown in Figure 36, then install a
new brush and replace the cap.
Motor Brush
Brush Cap
Figure 36. Top motor brush cap.
3.
Turn the machine on its side.
4.
Remove the lower brush cap and motor
brush, accessing them through a hole in the
bottom of the base (see Figure 37).
Figure 37. Lower motor brush location.
5. Replace the brush assembly and secure with
the brush cap.
-28-
Qty
Location of Brush
Replacing Timing
Belt
If you hear unusual sounds coming from the motor
or notice that the flex-shaft rotary tool stops work-
ing, the timing belt may be broken. If this happens,
it must be replaced before further operation to
avoid damaging the motor pulley.
To replace the timing belt:
1.
DISCONNECT MACHINE FROM POWER!
2.
Remove the flex-shaft rotary tool, if installed.
3.
Remove the three screws that secure the belt
cover shown in Figure 38, then remove the
cover.
Phillips Head Screws
Figure 38. Location of timing belt cover screws.
4. Remove the E-clip and flat washer from the
shaft shown in Figure 39, remove the timing
belt from the pulleys, then slide a new timing
belt onto the pulleys.
Timing
Belt
Figure 39. Timing belt and pulleys.
5. Re-install the belt cover with the screws
removed in Step 1, then re-install the flex-
shaft rotary tool.
Model G0734/G0735 (Mfd. Since 12/15)
Belt Cover
Flat
Washer
E-Clip