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Checking/Adjusting
Belt Tracking
The purpose of belt tracking is to make sure the
belt stays centered on the rollers and platen dur-
ing sanding operations. The belt tracking needs
to be checked any time you change or replace
the belt.
If belt tracking is not adjusted properly, the belt
can be damaged and present a serious safety
hazard if it moves off of the rollers and throws
material when it contacts the belt guard and other
components.
To check/adjust belt tracking:
1.
Install desired sanding belt as described
in Installing/Changing Sanding Belts on
Page 26.
2.
Pre-track sanding belt as described in Pre-
Tracking Belt on Page 27.
3.
Connect machine to power, then turn machine
ON and observe belt tracking across rollers
and platen.
— If top of belt does stay even with top of
drive roller (see Figure 39), no adjustment
is necessary.
— If top of belt does not stay even with top of
drive roller, proceed to Step 4.
Sanding Belt
Figure 39. Sanding belt even with top of drive
roller (dust port removed for clarity).
-28-
4.
5.
6.
7.
8.
Drive Roller
Adjust belt tracking knob (see Figure 40) to
adjust belt higher or lower on rollers until top
of belt remains even with top of drive roller.
Note: Belt tracking knob is very sensitive;
adjust it in small increments.
Belt Tracking
Tension/
Knob
Tracking
Lock Knob
Figure 40. Location of belt tracking knob and
tension/tracking lock knob.
When belt tracking appears to be correct,
allow machine to run for approximately one
minute to verify tracking stays in correct
position, then turn machine OFF.
— If tracking does not stay in correct posi-
tion, repeat Steps 4–5.
Tighten tension/tracking lock knob to secure
tracking setting (see Figure 40).
Close and latch dust port cover.
Install roller guard.
Model G0512 (Mfd. Since 12/22)
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