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Troubleshooting – Mechanical and Electrical Problems
Trouble Probable Cause Remedy
Machine will not
start/restart or
repeatedly trips circuit
breaker or blows
fuses.
No incoming power.
Verify machine is connected to power
source. Make sure START button is
pushed in completely, and the STOP
button is disengaged. See page 21.
Cord damaged. Replace cord.
Overload automatic reset has not been
reset.
Remove the switch plate from the rear
of the column (see page 14) and reset
the overload by pushing in completely
the OFF (red) button on the magnetic
switch. If problem persists, check amp
setting on the motor starter.
Band Saw frequently trips.
One cause of overloading trips which
are not electrical in nature is too heavy
a cut. The solution is to reduce feed
pressure into the blade. If too heavy a
cut is not the problem, then check the
amp setting on the overload relay.
Match the full load amps on the motor
as noted on the motor plate. If amp
setting is correct then there is probably
a loose electrical lead. Check amp
setting on motor starter.
Building circuit breaker trips or fuse
blows.
Verify that band saw is on a circuit of
correct size. If circuit size is correct,
there is probably a loose electrical lead.
Check amp setting on motor starter.
Switch or motor failure (how to
distinguish).
If you have access to a voltmeter, you
can separate a starter failure from a
motor failure by first, verifying incoming
voltage at 220+/-20 and second,
checking the voltage between starter
and motor at 220+/-20. If incoming
voltage is incorrect, you have a power
supply problem. If voltage between
starter and motor is incorrect, you have
a starter problem. If voltage between
starter and motor is correct, you have a
motor problem.
Motor overheated.
Clean motor of dust or debris to allow
proper air circulation. Allow motor to
cool down before restarting.
Motor failure.
If electric motor is suspect, you have
two options: Have a qualified electrician
test the motor for function or remove the
motor and take it to a qualified electric
motor repair shop and have it tested.
Miswiring of the unit.
Double check to confirm all electrical
connections are correct. Refer to
appropriate wiring diagrams on pages
54 through 57 to make any needed
corrections.