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SECTION 7: SERVICE
Review the troubleshooting and procedures in this section to fix your machine if a problem develops. If you
need replacement parts or you are unsure of your repair skills, then feel free to call our Technical Support
at (570) 546-9663.
SYMPTOM
POSSIBLE CAUSE
Motor
will
not
1. Low voltage.
start.
2. Open circuit in motor or loose connections.
Motor
will
not
1. Loose connections or short circuit in line cord,
start; fuses/circuit
plug, or motor.
breakers blow.
2. Incorrect fuses or circuit breakers in power line.
Motor
stalls
1. Motor overloaded.
(resulting
in
2. Short circuit in motor or loose connections.
blown fuses or
tripped circuit).
3. Low voltage.
4. Incorrect fuses or circuit breakers in power line.
Machine
slows
1. Workpiece pressure is too great.
when operating.
Machine vibrates
1. Machine not mounted securely.
excessively.
2. Incorrect sanding belt tracking.
3. Weak or broken tension spring.
4. Broken/defective sanding belt.
5. Sanding disc rubbing or not centered properly.
Sanded surface
1. Table not perpendicular to disc.
not square.
2. Miter gauge not square to disc.
Deep
sanding
1. Sandpaper damaged or clogged.
grooves or scars
1. Sandpaper too coarse for the desired finish.
in workpiece.
2. Workpiece sanded across the grain.
3. Too much sanding force on workpiece.
4. Workpiece held still against the belt or disc.
Grains rub off the
1. Sanding belt or disc has been stored in an incor-
belt or disc eas-
rect environment.
ily.
2. Sanding belt or disc has been damaged.
Sanding surfaces
1. Too much pressure against belt or disc.
clog quickly or
2. Sanding softwood.
burn.
Burn marks on
1. Using too fine of sanding grit.
workpiece.
2. Using too much pressure.
3. Work held still for too long.
Glazed sanding
1. Sanding wet stock.
surfaces.
2. Sanding stock with high residue.
Workpiece kick-
1. Not supporting the workpiece against the stop.
back or vibration.
2. Starting the workpiece on a leading corner.
H7761 2" x 27" Belt & 6" Disc Combo Sander
Troubleshooting
CORRECTIVE ACTION
1. Check power line voltage and correct if necessary.
2. Inspect all connections on motor for loose or open
connections.
1. Inspect cord, plug and motor for damaged insula-
tion, shorted wires or loose terminals.
2. Install correct fuses or circuit breakers.
1. Reduce load on motor.
2. Inspect connections on motor for loose or shorted
terminals or worn insulation.
3. Check power line voltage and correct if necessary.
4. Install correct fuses or circuit breakers.
1. Reduce workpiece pressure on wheel.
1. Secure machine to benchtop or stand.
2. Follow belt tracking instructions on Page 15.
3. Replace spring.
4. Replace sanding belt.
5. Adjust sanding table to prevent disc contact.
1. Adjust table tilt.
2. Adjust miter gauge.
1. Clean and/or replace sanding surface.
1. Use a finer grit sanding belt or disc.
2. Sand with the grain.
3. Reduce pressure on workpiece while sanding.
4. Keep workpiece moving while sanding.
1. Store sanding belt or disc away from damp condi-
tions.
2. Store sanding belt or disc flat, not folded or bent.
1. Reduce pressure on workpiece while sanding.
2. Use different stock or plan on cleaning/replacing
belts frequently.
1. Use a coarser grit sanding belt or disc.
2. Reduce pressure on workpiece while sanding.
3. Do not keep workpiece in one place for too long.
1. Dry stock properly before sanding.
2. Use different stock or plan on cleaning/replacing
belts/discs frequently.
1. Use back stop to support workpiece.
2. Start workpiece on a trailing corner.
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