Use and Care Manual

18
Drum Alignment
The sanding drum must be aligned parallel to the
conveyor table for proper machine operation. The
sanding drum has been pre-aligned at the factory
and should not require immediate adjustment,
although it is recommended that you confirm the
alignment before operating the sander. Proceed as
follows:
First inspect the alignment with a gauge of some
kind. The following procedure uses a steel straight-
edge as a gauge. See Figure 20.
1. Unplug sander from power source.
2. Remove the dust cover and remove the
abrasive strip from the drum.
3. Insert the gauge between the drum and
conveyor bed at one end of the drum (Figure
21). Raise the conveyor bed while slowly
rotating drum by hand until the drum lightly
contacts the thickness gauge.
4. Move thickness gauge to the opposite end of
the drum. If the drum does not contact the
thickness gauge equally at both ends of the
drum, alignment is necessary. See below.
Initial Drum Alignment
1. Release v-belt tension from motor by loosening
pinch bolt of motor support (Figure 21).
2. Loosen two lower #10-32 screws in belt guard
(Figure 21 shows one of the screws). Slide
motor support up the column and re-tighten
pinch bolt.
3. Because the tension roller suspension
assembly (Figure 22) mounts to the drum
bearing bolts which are used to adjust the
drum, it is necessary to align the sanding drum
and tension rollers at the same time. Loosen
outboard bearing bolt knobs (Figure 22) and
the inboard bearing bolts.
4. With all four bearing bolts loosened, note that
the drum will adjust about 1/2” on each end.
Position drum alignment templates (Figure 22)
on the conveyor and below the drum with one
template at each end of the drum.
5. Raise the conveyor bed so that the drum is
resting on both templates but leaving the drum
within its range of adjustment. To check this,
you should be able to lift either end of the drum
off the templates and, with light hand pressure
on the drum, attempt to slide templates with a
screw driver to make sure drum is actually
resting on the template and not just in its lowest
position.
Figure 20
Figure 21
Figure 22
6. In this position, the drum should be resting on
the templates and both tension rollers resting
on the conveyor surface. Re-tighten bearing
bolts and restore v-belt tension. Tighten pinch
bolt in motor support and tighten two lower
screws in belt guard (Figure 21).