MAINTENANCE
-29-
Figure 39.
Pull casting off of roller ends.
Figure 40.
Remove large roller nut.
Figure 41.
Remove front sanding roller.
Changing V-Belts
Check the V-belts periodically to check for signs
of glazing, cracking or fraying. If any of these
conditions are present, change both V-belts.
Change the V-belt as follows:
1.
Unplug the sander from the power and
shut off the air pressure!
2.
Loosen the top nut (turn counterclockwise)
on the motor adjustment bolt.
See
page 21
for motor adjustment controls.
Turn the
bottom nut counterclockwise (or pry motor
up) to loosen and remove the V-belts.
4.
In order to take the V-belts off of the roller
pulleys, the rollers must be removed from
the sander. Open both access doors on the
upper part of the machine. At the left-hand
access side, remove the platen knob by
loosening the setscrew near its dial.
5.
Remove the two setscrews that secure the
dial plate to the casting and then remove
the two large cap screws that secure the
top of the casting.
6.
Pull the casting off of the roller ends as
shown in
Figure 39
.
7.
At the other side of the machine (the right-
hand side from the front), remove the large
nut shown in
Figure 40
.
The roller may turn
if not held from the other side.
This secures
the other end of the front roller shaft to the
sander body.
8.
Now, move back to the left-hand side of the
machine and carefully pull out the front
sanding belt roller as shown in
Figure 41
.
The V-belts can now be easily removed.
9.
Install the new V-belts in the reverse order
of removal.
To make this process easier,
have a helper hold the V-belts up at the
other side of the sander when you re-install
the roller. When you retighten the large
roller shaft nut, have your helper stand at
the other side of the sander to keep the
roller from turning.
