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.
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.
Idler Guard
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.
