Jet J-CK350-4, Operating Instructions And Parts Manual

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15
14.2 Machine Fault & Operating Problems
Problem Probable Cause Solution
Spindle motor will not
turn
Electrical power supply
Check: the phases; the cables; the plug; the socket.
Also check that the motor connections are in place.
Transformer
Check that the voltages are present both on the input
and output. Otherwise replace.
Contactor
Check that the phases in it are present both on the
input and output, that it is not jammed, that it closes
when powered and that it is not causing short circuits.
Change if any of these problems are found.
Thermal relay
Make sure it is closed, i.e. check that the phases are
present in input and output, that it is not causing short
circuits and responds when the reset coil is closed. If it
has tripped to protect the motor, check the amperage
setting, reset, and check the motor. Change if
necessary.
Motor
Check that it has not burned out, that it turns freely
and that there is no moisture in the connection
terminal board box. The winding can be rewound or
replaced.
15.0 Parts
Ordering 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, 8:00 a.m. to 5:00 p.m. CST. Having the Model Number and
Serial Number of your machine available when you call will allow us to serve you quickly and accurately.
Non-proprietary parts, such as fasteners, can be found at local hardware stores, or may be ordered from
JET.
Some parts are shown for reference only, and may not be available individually.