Wen 65910, Manual

ADJUSTMENTS

ADJUSTING THE PRESSURE ROLLER (Fig. 20 & 21)

There are two pressure rollers (Fig. 20 - 1) on each side of the sand-
ing drum. The rollers extrude slightly below the bottom of the drum 
in order to press the workpiece against the conveyor belt as it passes 
through the sander.  

The pressure on the rollers is controlled by the springs and adjustment 
screws that can be accessed from the inside of the drum housing. If the 
roller pressure is too high, kickback and snipe may occur. If the roller 
pressure is too low, the workpiece may slip on the conveyor belt. To 
adjust the pressure of the rollers:

1. Turn off and disconnect the machine from the power source.

2. Remove the screw and washer securing the drum cover and lift the 
cover open.

3. There are two screws (Fig. 21 - 1) on both ends of the drum. To 
increase the roller pressure, evenly tighten all four Phillips screws by 

ADJUSTING THE STOP SCREW (Fig. 22)

The heigh adjustment stop, controlled by the protrusion of the Phil-
lips head screw through the bottom of the frame, prevents the sand-
ing drum from contacting the conveyor belt. If necessary, re-adjust the 
height adjustment stop screw as follow:

1. Turn off and disconnect the machine from the power source.

2. Loosen the height adjustment lock knob and raise the sanding drum 
using the heigh adjustment wheel.

Fig. 20

Fig. 21

Fig. 22

rotating them clockwise in small increments. To decrease the roller pressure, evenly loosen all four Phillips screws 
in small increments. 

4. To test the adjustments, turn on the machine and sand a scrap piece of workpiece. If the workpiece slips on the 
conveyor belt, increase the pressure by rotating the four screws one turn clockwise. If the workpiece tends to kick 
back, reduce the pressure by rotating the four screws one turn counterclockwise.

5. Repeat until roller pressure has been properly adjusted. Close the drum cover and replace the washer and cap 
screw.

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3. Loosen the hex nut on the stop screw and adjust the height of the screw (Fig. 22 - 1) to protrude above the frame 
higher than 1/4 inch.

4. Tighten the hex nut and lower the sanding drum until the motor mount frame touches the top of the stop screw.

5. Check that the bottom of the sanding drum is at least 3/16" above the surface of the conveyor belt. If the distance 
is too close, repeat the steps above to re-adjust as necessary.

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