Motor Troubles & Solutions - Sharp SW-130HT Instruction Manual

MINOR TROUBLES & SOLUTIONS
TROUBLE
Saw blade motor does not run
even though blade drive button
is pressed.
MOTOR TROUBLES & SOLUTIONS
TROUBLE
Motor will not start
Motor will not start,
fuse or circuit
Motor fail to develop
full power. (Power
output of motor
decreases rapidly
with decrease in
voltage at motor
terminals.)
Motor overheat
Motor stalls
(Resulting in blown
fuses or tripped
circuit breakers)
Frequent opening of
fuses or circuit
breakers.
PROBABLE CAUSE
Overload relay activated
Saw blade is not at forward
limit position.
PROBABLE CAUSE
Magnetic switch open, or
protector open.
Low voltage
Open circuit in motor or loose
connections.
Short circuit in line, cord or
plug.
Short circuit in motor or loose
connections
Incorrect fuses or circuit
breakers in power line.
Power line overloaded with
lights, appliances and other
motors.
Undersize wires or circuit too
long.
General overloading of power Request a voltage check from the power
Motor overloaded.
Air circulation through the
motor restricted.
Short circuit in motor or loose
connections.
Low voltage
Incorrect fuses or circuit
breakers in power line.
Motor overloaded
Motor overloaded
Incorrect fuses or circuit
breakers.
SUGGESTED REMEDY
Reset
Press SAW FRAME
FORWARD button
SUGGESTED REMEDY
Reset protector by pushing red button (inside
electric box.)
Check power line for proper voltage.
Inspect all lead terminations on motor for loose
or open connections.
Inspect line, cord and plug for damaged
insulation and shorted wire.
Inspect all lead terminations on motor for loose
or shorted terminals or worn insulation on
wires.
Install correct fuses or circuit breakers.
Reduce the load on the power line.
Increase wire sizes, or reduce length of wiring
company
Reduce load on motor
Clean out motor to provide normal air
circulation through motor.
Inspect terminals in motor for loose or shorted
terminals or worn insulation on lead wires.
Correct the low line voltage conditions.
Install correct fuses circuit breakers.
Reduce motor load.
Reduce motor load
Install correct fuses or circuit breakers.
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