Delta 31-481 TO AdjUST PARALLELISM OF SANdINg dRUMS, TO AdjUST ROLLER PRESSURE

12
AdjUSTMENTS
FIg.12
TO AdjUST PARALLELISM OF
SANdINg dRUMS
The front sanding drum has been factory adjusted and
needs no further adjustment. The rear sanding drum
must be adjusted for parallelism.
1. Lift the upper guard up and tilt it toward the rear of
the machine to expose the sanding drums.
2. Using the 6mm wrench provided, rotate the cap
screws, indicated in Fig. 11, on either end of the
rear drum.
3. Turning the cap screws clockwise will raise the
drum while turning it counterclockwise will lower
the drum.
4. Repeat this dial setting on the opposite end of the
drum.
5. Replace the upper guard to its original position over
the drums.
NOTE: For proper operation of the machine, the dial
settings at both ends of the drum must be identical.
FIg. 11
TO AdjUST ROLLER PRESSURE
The pressure rollers maintain tension upon the
workpiece as it passes through the machine. If the
stock refuses to pass through the machine, or the
finished surface is uneven, the tension on the pressure
rollers may need adjusting.
1. Lift the upper guard up and tilt it toward the rear of
the machine to expose the sanding drums.
2. Locate the roller pressure adjustment screws as
indicated in Fig. 12.
3. Using a Phillips head screw driver, turn the screws
clockwise to increase the roller pressure on the
workpiece; or counterclockwise to decrease the
pressure.
4. Adjust both sides of the pressure rollers to ensure
parallelism with the drums.
5. Replace the upper guard to its original position over
the drums.
Do not overtighten the adjustment screw. Too much roller pressure will prevent the workpiece from
passing through the machine, and may cause the feed belt to stop.