12
Figure 7-1
Figure 7-2
7.2
Extension cords
The use of extension cords is discouraged; try to
position machines near the power source. If an
extension cord is necessary, make sure it is in good
condition. When using an extension cord, be sure to
use one heavy enough to carry the current your
product will draw. An undersized cord will cause a
drop in line voltage resulting in loss of power and
overheating. Table 2 shows correct size to use
depending on cord length and nameplate ampere
rating. If in doubt, use the next heavier gauge. The
smaller the gauge number, the heavier the cord.
Recommended Gauges (AWG) of Extension Cords
Amps
Extension Cord Length *
25
feet
50
feet
75
feet
100
feet
150
feet
200
feet
<
5
16 16 16 14 12 12
5
to
8 16 16 14 12 10 NR
8
to
12 14 14 12 10 NR NR
12
to
15 12 12 10 10 NR NR
15
to
20 10 10 10 NR NR NR
21
to
30 10 NR NR NR NR NR
*based on limiting the line voltage drop to 5V at 150% of the rated
amperes. NR: Not Recommended.
Table 2
8.0
Adjustments
8.1
Drum Height Control
Drum height (i.e. depth of cut) is controlled by height
adjustment handle (B, Figure 6-3). Rotate handle
clockwise to lower drum, counterclockwise to raise
it. One revolution of handle will move drum
approximately 1/16” (or 1/4 turn = approx. 1/64”). A
scale is fixed below the handle for quick reference.
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 just contacts top of conveyor belt. Note:
Make sure drum – not just tension rollers –
contacts 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 on scale and adjust
scale until zero aligns with the pointer.
4. Retighten
screws.
Depending on desired accuracy, you may need to
repeat this process when installing different
abrasive grits.
8.3
Infeed/Outfeed Table Adjustment
(OPTIONAL)
The optional tables can be swung down to allow
easier access for drum wrapping or other
adjustments.
Loosen handles on each side, slide table away from
machine and then down. See Figure 8-2.
Figure 8-2
