Changing the Sanding Belt

Referring to Figure 12:

1.Disconnect the machine from the power source.

2.Lock the sanding platen in the vertical position (see the Sanding Platen Angle Adjustment section on page 12).

3.Release tension on the belt by loosening the handle (C).

4.Loosen or remove the lock knobs (B) and remove the belt guard (A).

5.Remove the old belt and install the new belt matching the direction of the arrows on the belt with the arrow label on the top of the platen.

6.Line up edge of belt with edge of rollers.

7.Place tension on the belt by moving the tension arm handle (C) to the Tight position.

8.Reinstall the belt guard (A) and tighten the lock handles (B)

Note: Belts stretch with wear. When a belt is replaced, you may have to adjust tracking.

Belt Tracking Adjustment

The Belt Tracking Adjustment is a fine adjustment procedure. The Motor Mount Tracking Adjustment (following section) is a course adjustment.

To adjust the belt tracking:

1.Disconnect the machine from the power source.

2.Push the belt by hand from left to right (the direction indicated top of the platen) and observe the belt’s position on the rollers. The oscillating movement of the belt is by design. Observe the belt's range of movement from its highest to lowest position. The edges of the belt should not have a tendency to move above or below the edges of the rollers.

If adjustment is still necessary:

Figure 12

Figure 13

3.Insert the round shaft of the belt tracking tool (provided) into the micro adjust lock nut (A) and turn away from you to loosen.

4.Turn the micro adjusting screw (B) in 1/4 turn increments until the belt tracks evenly on the rollers when rotated by hand.

Tip: Moving the belt tracking tool away from you raises the belt on the drum and towards you lowers the belt on the drum.

5.Tighten the micro adjusting nut (A).

6.Connect the machine to power.

7.Turn on the power to the machine and observe the belt’s up and down range of movement.

Adjustment is correct when the edges of the belt do not move above or below the edges of the rollers.

8.When adjustment is complete, tighten the micro adjust lock nut (A).

If the tracking cannot be corrected go to the Motor Mount Tracking Adjustment section (next page).