Mechanical And Electrical Problems; Replacement Parts - Jet JWBS-14SF Operating Instructions And Parts Manual

14.2 Mechanical and electrical problems

Table 5
Trouble
Machine will not
start/restart or
repeatedly trips circuit
breaker or blows
fuses.
Band Saw does not
attain full speed.

15.0 Replacement parts

Replacement parts are listed on the following pages. To order parts or reach our service department, call 1-
800-274-6848 Monday through Friday (see our website for business hours, www.waltermeier.com). Having the
Model Number and Serial Number of your machine available when you call will allow us to serve you quickly
and accurately.
Probable Cause
No incoming power.
Cord damaged.
Band Saw frequently trips.
Building circuit breaker trips or fuse
blows.
Switch or motor failure (how to
distinguish).
Motor overheated.
Motor failure.
Miswiring of unit.
Switch failure.
Extension cord too light or too long.
Low current.
Remedy
Verify machine connections.
Replace cord.
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 this does not
resolve the issue, check for loose
electrical lead.
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.
If you have access to a voltmeter, you
can separate a starter failure from a
motor failure by first, verifying incoming
voltage at 115 +/-10% (230+/-10%) and
second, checking the voltage between
starter and motor at 115 +/-10% (230+/-
10%). 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.
Clean motor of dust or debris to allow
proper air circulation. Allow motor to
cool down before restarting.
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 for testing.
Double check to confirm all electrical
connections are correct. Refer to wiring
diagram to make needed corrections.
If the start/stop switch is suspect, you
have two options: Have a qualified
electrician test the switch for function, or
purchase a new start/stop switch and
establish if that was the problem on
change-out.
Replace with adequate size and length
cord.
Contact a qualified electrician.
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