MasterCraft 55-3559-4

Motor overheats. 1. Motor overloaded.
2. Extension cord too
long and of insufficient
gauge (weight).
1. Reduce load on motor
(pressure on object being
sanded).
2. Utilize an extension cord of
appropriate gauge and length
or plug tool directly into outlet.
Motor stalls (resulting in
blown fuses or tripped
circuit).
1. Short circuit in motor
or loose connections.
2. Low voltage.
3. Incorrect fuses or
circuit breakers in
power line.
4. Motor overload.
1. Inspect connections on motor
for loose or shorted terminals
or worn insulations. (Send for
Servicing.)
2. Correct low voltage conditions
(for example: improper
extension cord length and/or
gauge).
3. Install CORRECT fuses or
circuit breakers or plug tool
into an appropriate circuit,
matched to an appropriate
fuse or breaker.
4. Reduce the load on the motor.
Machine slows when
operating.
1. Feed rate too
great.
2. Undersized
circuit or use
of undersized
extension cord.
1. Reduce the rate at which
the workpiece is fed into the
working area of the tool.
2. Ensure circuit wires or
extension cords are proper
gauge, or eliminate use of
extension cords.
Machine vibrates
excessively.
1. Incorrect motor
mounting.
2. Incorrect sanding-belt
tension.
3. Weak or broken
tension spring.
4. Idler roller is too loose.
5. Broken/defective
sanding accessories.
1. Have motor mountings
inspected by service
technician.
2. Adjust tension adjustment
knob. Follow belt-tensioning/
tracking instructions in this
manual.
3. Have tension spring replaced
by service technician.
4. Have service technician
adjust idler roller.
5. Replace sanding belt/disc.
Workpiece frequently
gets pulled out of
operator’s hands.
1. Not supporting the
workpiece against the
stop.
2. Attempting to sand
(unaided) a workpiece
that is too small.
1. Use the platen (backstop) or
mitre gauge to support the
workpiece.
2. Use another hand tool or jig to
grasp or hold the workpiece.
Workpiece lifts up from
the sanding disc/table.
1. Sanding on the “up”
side of the wheel.
1. Sand on right side of sanding
disc (as operator faces the
disc).
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