Powermatic WB-43 User Manual download pdf (Page 16)

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2. Turn on the conveyor belt.

3. Adjust tracking using the same adjustment

screws that were used for tensioning in

Figure 13.

4. If the conveyor belt is moving to the right

side, turn the right screw clockwise. This will

return the tracking toward the left.

5. If the conveyor belt is moving to the left

side, turn the left screw clockwise. This will

return the tracking toward the right.

6. A positioning wheel (Figure 14) has been

provided on the right and left sides of the

conveyor belt to limit the belt tracking. When

adjusting the tracking, the conveyor belt

should be moved until its edge just touches

the positioning wheels.

7. Allow the sander to run for several minutes

while observing the conveyor belt tracking

and readjust if necessary.

8. Turn off the conveyor belt and re-install

emergency stop cover.

Feed Rate

The feed rate is infinitely variable within the

provided range, in order to meet the sanding

requirements of a wide variety of materials.

Selecting a proper feed rate is largely a matter

of experience. In general, soft woods require a

higher feed rate, while hard woods require a

lower feed rate.

Change the feed rate only

while the conveyor belt is running. Failure to

comply may cause damage to the gearbox.

Adjust the feed rate with the selector knob on

the worm gear reducer (Figure 15). Turn the

selector knob clockwise to decrease the

conveyor belt speed, counterclockwise to

increase it.

Pressure Bar Adjustment

The front and rear sets of pressure bars have

been factory adjusted. This setting should,

however, be checked before operating the

sander.

The pressure bars should be parallel to the

conveyor table with equal pressure on each end,

and are set slightly below the level of the

sanding belt.

If the ends of the workpiece are sniped, the front

pressure bars are too low. The pressure should

be enough to firmly hold the workpiece against

the conveyor, but not so hard that the ends of

the workpiece spring up after clearing the bar.

Figure 14

Figure 15

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