11
5.
Press inboard take‐up lever (Figure 6‐9) and
insert trailing end of strip as far as it will go. If
necessary, trim tapered end of abrasive strip.
6.
Release inboard take‐up lever to secure strip.
All abrasive strips will stretch over time as they are
used, and may stretch enough to allow the take‐up
lever to reach its lowest position so that it cannot
maintain tension on the strip. If this occurs, follow the
above procedures to reset the take‐up lever.
Figure 6‐9
7.0
Electrical connections
All electrical connections must be
done by a qualified electrician in compliance with all
local codes and ordinances. Failure to comply may
result in serious injury.
The Sander is rated at 230V power. The sander comes
with a plug designed for use on a circuit with a
grounded outlet.
It is recommended that the sander be connected to a
dedicated 16 amp circuit with circuit breaker or fuse.
If connected to a circuit protected by fuses, use time
delay fuse marked “T”.
Local codes take precedence
over recommendations.
8.0
Adjustments
Disconnect sander from power
source before making adjustments.
8.1
Drum Height Control
Drum height and depth of cut are controlled by
height adjustment handle (see Figure 5‐1). Rotating
handle clockwise lowers drum, counter‐clockwise
raises it. One revolution of handle will move drum
approximately 1.6mm (or 1/4 turn = approx. 0.4mm),
as shown on the label below handle.
8.2
Depth scale
The depth scale indicates distance between bottom
of sanding drum and top of conveyor belt.
Adjustment is performed by “zeroing” the scale.
1.
Unplug sander from power source.
2.
With an abrasive strip on drum, lower drum to
where it touches top of conveyor belt.
3.
At this drum position, the depth scale pointer
should align with zero mark on scale. If it does
not, loosen two screws and raise or lower scale
until zero aligns with the pointer.
4.
Retighten screws.
Note:
Depending on desired accuracy, you may need
to repeat this process when installing different
abrasive grits.
8.3
Depth stop assembly (OPTIONAL)
NOTE: The depth stop assembly is optional for JWDS-
2244-M, but included with JWDS-2550-M.
The depth stop nut (A, Figure 1) provides a hard stop
at final sanding depth. It ensures that the operator
will not sand too deeply when he/she wishes to make
multiple pieces the same final thickness.
1.
Rotate handle to position drum at
final
sanding
depth according to scale. (Figure 8‐1 shows
23mm final depth as example).
2.
Press button on stop nut to slide nut into
general position, then rotate nut until it firmly
contacts bottom of plate (B).
CAUTION:
The stop nut is designed to be used
below
the plate to allow full support when nut
contacts plate. Using it above the plate may
cause deflection as nut pushes into it.
3.
Raise drum and perform sanding operation.
Depending on the workpiece, multiple passes
may be needed until final depth is reached and
stop nut is contacted.
If stop assembly will not be used, loosen left screw (C)
and rotate plate (B) out of the way (see inset). This
allows free drum movement.
