-25-
W1772/W1773 37" Drum Sander
O
PE
R
ATIO
NS
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.............................. 47A.
W1773.Maximum.Amp.Load.at.240V................... 43A.
W1773.Maximum.Amp.Load.at.480V................ 21.5A.
Model: W1772
AMPERAGE LOAD CHART
Model: W1773
AMPERAGE LOAD CHART
240V:
240V:
480V:
13-30A
31-39A
43A
7-15A
16-19A
21.5A
SAFE
SAFE
DAMAGE
DAMAGE
CAUTION
CAUTION
13-35
A
36-43
A
47
A
SAFE
DAMAGE
CAUTION
Figure.28.
W1773 amp load chart.
Model: W1772
AMPERAGE LOAD CHART
Model: W1773
AMPERAGE LOAD CHART
240V:
240V:
480V:
13-30A
31-39A
43A
7-15A
16-19A
21.5A
SAFE
SAFE
DAMAGE
DAMAGE
CAUTION
CAUTION
13-35
A
36-43
A
47
A
SAFE
DAMAGE
CAUTION
Figure.27
.W1772 amp load chart.
Figure.26
. Amp draw meter.
