Powermatic PM1800 Blade Speed Adjustment, Drive Belt Tension and Replacement, Refer to Figures 38

The 45° stops can be checked in similar fashion, using an angle gauge similar to that shown in Figure 37.

To adjust the miter gauge angle for operations:

1.Loosen the handle (A).

2.Rotate the gauge body until the pointer (B) lines up with the desired angle on the scale. You may have to pivot the 90° stop plate (C) out of the way to allow the body to rotate.

3.Tighten the handle (A).

4.There are three stops – at 90°, and 45° left and right. Each of these can be adjusted by loosening the hex nut (D) and turning the screw (E) as needed. Re-tighten the hex nut

(D) when adjustment is finished.

Blade Speed Adjustment

Refer to Figures 38 through 40.

The band saw will operate at 1800 and 4200 SFPM (surface feet per minute). Figure 39 shows the appropriate belt position to achieve each speed.

To change the speed:

1.Disconnect machine from power source.

2.Loosen the motor lock handle and raise the motor lift handle to release tension on the belt.

3.Tighten the motor lock handle to keep motor in raised position.

4.Slide the belt onto the appropriate set of pulleys.

5.Loosen motor lock handle and allow motor to lower. The weight of the motor itself should produce the proper tension for the belt. Check the tension by pushing with moderate pressure against the center of the belt (Figure 40). An adequately tensioned belt will deflect about 1/2”. If tension isn’t strong enough, push down on the motor.

6.Tighten the motor lock handle.

Drive Belt Tension and Replacement

The drive belt and pulleys are properly adjusted at the factory. However, belt tension should be occasionally checked when the band saw is new, as a new belt may stretch slightly during the breaking-in process.

If the belt becomes worn, cracked, frayed or glazed, it should be replaced as follows:

Refer to Figures 38 and 40.

1. Disconnect machine from power source.

Figure 38

Figure 39

Figure 40

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