Sanding, Using the amp draw meter, Ope r at io n s – Woodstock SHOP FOX W1772 User Manual
Page 27
-25-
W1772/W1773 37" Drum Sander
O
PE
R
AT
IO
N
S
Sanding
To sand a workpiece, do these steps:
1. Adjust the table height according to the instructions
in
Depth of Cut on Page 24.
2. Start the dust collector, the drum motor, and the
feed motor.
3. Feed the workpiece through the sander while stand-
ing to the side and monitor the amp meter; if it
approaches the maximum amp load, lower the con-
veyor table.
4. Run wide stock through two or three times with-
out adjusting the table height. Turn the stock 180°
between passes to ensure an even cut. Do not sand
more than one workpiece at a time side-by-side.
DO NOT sand more than one board at
a time side-by-side. Minor variations
in thickness can cause one board to
be propelled by the rapidly spinning
sanding drum and ejected from the
machine. NEVER stand directly in front
of the machine. Failure to do so could
result in severe personal injury.
Close all covers and panels before
starting the drum sander. Failure to
do so could result in severe personal
injury.
Using the Amp Draw
Meter
The amp draw meter (
Figu
re 26
) is used to keep
the
machine from being overloaded during sanding
operati
ons.
As a general rule, always start with a shallow sand-
ing depth and carefully increase the sanding depth.
Keep the amp load in the green range during operation.
Generally, the normal depth of cut is no more than
1
⁄
64
"
or 0.016" for a 36
1
/
2
" wide board using coarse sandpaper.
DO NOT work your machine in the red zone as shown on
the Amperage Load Chart. If operated in the red zone,
the motor will lose RPM, the start capacitor will ener-
gize, and capacitor or motor damage will occur.
Amp load is directly affected by many factors such as
feed rate, depth of cut, wood type, sandpaper grit, and
workpiece width.
W1772 Maximum Amp Load ............................. 44A
W1773 Maximum Amp Load at 220V .................. 40A
W1773 Maximum Amp Load at 440V .................. 20A
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Figure 27.W1772 amp load chart.
Figure 26. Amp draw meter.