Wilton 4400A - Manual (Page 11)

11
Track Mechanism Maintenance
While the use of a dust collection system can extend
service intervals, an accumulation of dust will almost cer-
tainly require periodic cleaning of the tracking mechanism.
The more continuous the use of the machine, the more
frequently this maintenance should be performed.
As mentioned in the preceding section, the need for
required maintenance is often indicated by difficulty in ad-
justing the tension/tracking mechanism.
Maintenance:
1. With the belt removed according to the instructions in
Belt Replacement, pull out the upper tracking system and
clean away all built up material in the upper part of the
bracket casting.
2. Take the two keys off of the idler pin bracket, wipe off, and
re-grease.
3. Reverse the above steps to make the machine ready for
reinstallation of the belt according to the Belt Replacement
instructions.
Installing Abrasive Discs
1. Disconnect the power to the machine to prevent acci-
dental start-ups.
2. Peel off the old abrasive disc.
3. Clean the drive disc surface using naptha or a similar
nonflammable solvent that will dry film-free.
4. Pull the protective backing half off the new abrasive disc.
5. Position the new disc carefully so it is centered accu-
rately on the drive disc. (See Figure 8.)
6. When accurately centered, remove the rest of the protec-
tive backing and press the abrasive disc firmly against the
drive disc so complete adhesive contact is made.
7. Reconnect the power to the machine.
Figure 8: Installing new abrasive disc
Replacing the V-Belt.
1. Disconnect the power to the machine to prevent acci-
dental start-ups.
2. Remove the belt guard (Figure 9) and disc table
3. Remove the table tilt lock knob (Figure 10).
Figure 9: Removing belt guard
Figure 10: Disc table lock knob
3. Loosen the four motor bolts so the motor can slide on
its plate.
4. Remove the belt from the motor pulley.
5. Remove three of the base mounting bolts, then loosen
the fourth bolt slightly. This allows you to rotate the ma-
chine on the machine base (See Figure 11).