W1751 25"
Pressure Rollers
The pressure rollers are factory set so they are parallel with each other, parallel with the sanding drum, and parallel with the surface of the conveyor table.
To reduce snipe, double check the pressure roller depth adjustment. The front and rear pressure roller should be approximately
To adjust the pressure rollers, do these steps:
1.DISCONNECT THE SANDER FROM POWER!
2.Make two gauge boards that are 37" long and uniform in thickness.
3.Connect the air pressure and set it to 75 PSI.
4.Install the sanding belt and turn the belt tensioning knob to tension the belt.
5.Position each board on each side of the conveyor belt and directly below the front and back pressure rollers (see Figure 33).
6.Loosen the adjustment jam nuts and raise the pressure rollers above the sanding belt roller with the adjustment bolts shown in Figure 33.
7.Raise the table up until the boards barely touch the sanding belt, and mark the table handwheel position with a piece of tape or chalk.
8.Turn the table handwheel counterclockwise 1⁄8th of a turn, this will lower the table approximately 0.4mm.
9.Now lower the front and rear pressure rollers so that both ends barely touch the boards.
Note: The pressure rollers should now be prop- erly set between
12.Tighten the adjustment jam nuts.
Adjustment
Locations
Figure 33. Gauge boards placed under
pressure rollers.
SERVICE