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Belt Tracking/Tension
Continued
Gauging proper belt tension is very subjective.
The easiest way to check the tension is to pluck
the edge of the sanding belt. If it sounds like a
drum, the tension is probably too tight.
To adjust the tension:
1. With the belt installed and the quick release
lever engaged, loosen the hex bolt located
at the pivoting point of the rocker arm as
shown in Figure 20. Do not remove the bolt.
2. Using an adjustable wrench as shown in
Figure 21, rotate the large eccentric bolt
head to either increase or decrease the belt
tension.
3. When the proper tension is achieved, tight-
en the hex bolt that was loosened in Step 1,
while maintaining the position of the eccen-
tric bolt with a wrench.
4. Run the sander again to check and adjust the
tracking.
5. Using a scrap piece of wood, aggressively
sand on the belt to see if proper tracking is
maintained. If not, repeat the tracking
adjustment steps on the previous page.
Once the belt tension and tracking are properly
set, install the idler guard as shown in Figure
22. Tighten the lock down knobs on each side.
Idler Guard
Figure 20. Loosening rocker arm bolt.
(Belt Removed For Clarity)
Figure 21. Loosening eccentric bolt head.
(Belt Removed For Clarity)
Figure 22. Installing idler guard.