Troubleshooting - PowerTec BD4600 Owner's Manual

SYMPTOM POSSIBLE CAUSE(S)
Sanding Grains 1. Sanding belt/disc has been stored in
easily rub off belt an incorrect environment.
or discs. 2. Sanding belt/disc has been
damaged or folded.
Deep sanding 1. Sanding belt/disc grit is too coarse
grooves or scars for the desired finish.
in workpiece. 2. Workpiece sanded across the grain.
3. Too much sanding force on the
workpiece.
4. Workpiece held still against the belt/
disc for too long.
Sanding surface 1. Too much pressure against belt/
clogs quickly. disc.
2. Sanding softwood.
Burns on 1. Using a sanding grit that is too fine.
workpiece. 2. Using too much pressure.
3. Work held still for too long.
Motor will not 1. Short circuit in line, cord or plug.
start –
fuses or circuit 2. Short circuit in motor or loose
breakers tripping connections.
or 3. Incorrect fuses or circuit breakers in
blowing. power line.
Motor overheats. 1. Motor overloaded.
2. Extension cord too long and of
insufficient gauge (weight).
Motor stalls 1. Short circuit in motor or loose
(resulting in blown connections.
fuses or tripped 2. Low voltage.
circuit).
3. Incorrect fuses or circuit breakers in
power line.
4. Motor overload.
Machine slows 1. Feed rate too great.
when
operating. 2. Undersized circuit or use of
undersized extension cord.
Machine vibrates 1. Incorrect motor mounting.
excessively.
2. Incorrect sanding-belt tension.
3. Weak or broken tension spring.
4. Idler roller is too loose.
5. Broken/defective sanding
accessories.
Workpiece 1. Not supporting the workpiece
frequently against the stop.
gets pulled out of 2. Attempting to sand (unaided) a
operator's hands. workpiece that is too small.
Workpiece lifts up Sanding on the "up" side wheel.
from the sanding
disc/table.

TROUBLESHOOTING

CORRECTIVE ACTION
1. Ensure sanding accessories are stored away
2. Store sanding accessories flat – not bent or
1. Use a finer-grit sanding accessory.
2. Sand with the grain of the wood.
3. Reduce pressure on workpiece while sanding.
4. Keep workpiece moving while sanding on the
1. Reduce pressure on workpiece while sanding.
2. Use different stock, different sanding
1. Use a coarser-grit sanding accessory.
2. Reduce pressure on workpiece while sanding.
3. Do not keep workpiece in one place for too
1. Inspect cord or plug for damaged insulation
2. Inspect all connections on motor for loose or
3. Install correct fuses or circuit breakers or
1. Reduce load on motor (pressure on object
2. Utilize an extension cord of appropriate gauge
1. Inspect connections on motor for loose or
2. Correct low voltage conditions (for example:
3. Install CORRECT fuses or circuit breakers or
4. Reduce the load on the motor.
1. Reduce the rate at which the workpiece is fed
2. Ensure circuit wires or extension cords are
1. Have motor mountings inspected by service
2. Adjust tension adjustment knob. Follow belt-
3. Have tension spring replaced by service
4. Have service technician adjust idler roller.
5. Replace sanding belt/disc.
1. Use the platen (backstop) or mitre gauge to
2. Use another hand tool or jig to grasp or hold
Sand on right side of sanding disc (as operator
faces the disc).
from extremely hot or dry temperatures.
folded.
sanding accessory.
accessories, or accept that this will happen
and plan on cleaning or replacing discs/belts
frequently.
long.
and shorted wires.
shorted terminals and/or worn insulation.
switch tool to an appropriately size circuit.
being sanded).
and length or plug tool directly into outlet.
shorted terminals or worn insulations.
improper extension cord length and/or gauge).
plug tool into an appropriate circuit, matched to
an appropriate fuse or breaker.
into the working area of the tool.
proper gauge, or eliminate use of extension
cords.
technician.
tensioning/ tracking instructions in this manual.
technician.
support the workpiece.
the workpiece.
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