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1. Repeat “Tension Roller Alignment” except
raise the sanding drum only 1/4 turn of the
height adjustment handle.
2. If both tension rollers are causing snipe then
tighten all four hex nuts (A, Figure 29) at this
position.
3. If only outfeed tension roller causes snipe,
only tighten rear (outfeed) hex nuts on each
end of drum at this position, then raise
sanding drum another 3/4 turn of the handle.
4. Press infeed tension roller down to rest on
conveyor bed and tighten front (infeed) hex
nuts at this position.
This process sets the tension roller assembly at
an angle providing less tension pressure on the
outfeed roller.
Operation
Before using your drum sander, review the
previous pages in this manual on initial set-up
and adjustment. In this section, you will learn
how to operate the machine.
Circuit Breaker
The sander is equipped with a motor protective
device (circuit breaker). The breaker will
automatically shut the sander off when
excessive current is consumed.
If the breaker is tripped, turn the sander off and
press the circuit breaker button on the motor to
re-set.
Basic Operating Procedure
1. Set depth of cut.
2. Start drum.
3. Start conveyor and select feed rate.
4. Start dust collection system.
5. Feed stock through machine.
Setting Depth of Cut
Adjusting the drum sander for the proper contact
between the abrasive and the stock determines
the mechanical depth of cut.
It may take some experimentation to determine
the proper depth of cut, given the variables of
abrasive grit, type of wood, and feed rate. For
best results, use scrap wood to practice sanding
and to develop skill and familiarity with the
machine before doing finish work.
A good rule of thumb when sanding with grits
finer than 80 is to lower the drum so it contacts
the workpiece but drum can still be rotated by
hand. When using grits coarser than 80, you can
lower the drum slightly more. However, a
combination of several variables will determine
the proper depth of cut to use, including the
following:
1. Abrasive type and grit size.
2. Width of the piece being processed.
3. Hardness of the piece.
4. Feed rate of the conveyor belt.
Establishing Proper Drum Height
1. To establish drum height, position the stock
to be sanded under the drum. Do NOT start
drum.
2. Lower the drum to the stock thickness,
making sure drum can be rotated by hand
while contacting stock.
Do not start drum while in
contact with stock!
3. Without changing drum height, turn on
conveyor and run the stock out from under
the drum. Start sanding drum and sand
stock at that same position.
4. With the drum operating, feed stock under
the drum from the infeed side and against
the rotation of the drum. Always maintain
control of the stock to avoid kick-back and/or
slippage.
NOTE: If motor heats up during operation, depth
of cut may be too great for size of grit and/or
feed rate may be too fast.
Tips for Maximum Performance
The versatility designed into the 16-32 Plus
drum sander allows it to be used for a wide
variety of tasks that will boost the return on your
investment. For example, its capabilities range
from taking the place of a planer to thickness
rough stock, to speeding up fine sanding work
often done with slower, dust-generating hand
sanders.
Learning how to use its adjustments and
controls will allow you to fine-tune the machine
for maximum results. The best results come
from experimenting with different abrasive grits
and machine adjustments to fit the job at hand.
Following is a list of useful tips which can help
you improve performance of your sander.
Dust Collection
When connecting dust collectors, remember that
straight pipe will not restrict airflow as much as
flexible tubing. Y’s and elbows will restrict airflow
less than T’s. Also, a hose smaller than 2-1/2”
diameter should not be used.