Checking/Adjusting Belt Tracking - Grizzly T33256 Owner's Manual

Checking/Adjusting
Belt Tracking
The purpose of belt tracking is to make sure the
belt stays centered on the rollers during sanding
operations. Although belt tracking is set at the fac-
tory, it needs to be checked any time you change
or replace the belt.
You must perform the following procedure after
installing a sanding belt to ensure the belt does
not come off the rollers or get jammed against the
machine frame.
To check/adjust belt tracking:
1. DISCONNECT MACHINE FROM POWER!
2. Refer to Adjusting Platen Tilt on Page 22 to
adjust platen to horizontal position.
3.
Standing at rear of machine, push sanding
belt multiple times along platen (see Figure
34), so that it moves in direction of operation
(toward front of machine on platen), then
watch how belt tracks on rollers.
Figure 34. Belt tracking.
— If sanding belt stays in center of rollers
as you rotate belt by hand, proceed to
Step 5.
— If sanding belt does not stay in center of
rollers as you rotate belt by hand, proceed
to Step 4.
-26-
4. Adjust belt tracking nut until belt tracks at
center of rollers when pushed by hand (see
Figure 35).
Belt Tracking
Nut
Figure 35. Location of belt tracking nut.
— If belt moves away from sanding disc,
rotate belt tracking nut counterclockwise.
— If belt moves toward sanding disc, rotate
belt tracking nut clockwise.
5. Connect machine to power and turn it ON.
Verify belt is tracking correctly in center of
rollers, and fine-tune tracking with belt track-
ing nut (see Figure 35) as necessary while
machine is running.
6.
When belt tracking is correct, turn machine
OFF.
Model T33256 (Mfd. Since 04/22)