W1772/W1773 37" Drum Sander
Pressure Roller Height
SERVICE
The pressure rollers are factory set at
Proper pressure on the workpiece helps avoid kickback and keeps the workpiece from slipping. However, as pressure increases on the workpiece, snipe also increases (snipe is normal with all brands of drum sanders).
If snipe becomes a problem, you can minimize it by reduc- ing pressure (raising pressure roller height). However, you can only minimize it so much before the workpiece will slip or kick out, causing a hazard to the operator. If this hap- pens, you have raised the pressure rollers too high for them to function as
Note: An additional trick for eliminating snipe is to reduce pressure on the rear rollers, but not the front rollers. Conditions will vary with wood types, so use
These instructions will restore the pressure rollers to the factory setting.
To adjust the pressure rollers to the factory setting, do these steps:
1.DISCONNECT POWER TO THE SANDER!
2.Open the top cover.
3.Place the gauge blocks on the conveyor table and position them under all the pressure rollers, as shown in Figure 60.
4.Adjust the conveyor table up so the gauge blocks just touch the bottom of the rear drum.
5.Rotate the handwheel eight full turns clockwise, counting from the point of actual table movement so handwheel freeplay does not affect your count.
6.With all the pressure rollers: 1) Raise one end off of the gauge block, then move it back down until it just touches the gauge block; 2) repeat with the other side; 3) tighten the lock nuts together to make sure the adjustments are locked in place.