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Symptom
Possible Cause(s)
Motor will not turn
Emergency stop engaged
Electrical power supply
Trigger switch not activating
Transformer
Magnetic contactor
Thermal relay
Motor
Corrective Action
Rotate Emergency Stop button to disengage.
Check: the phases; the cables; the plug; the socket. Also
check that the motor connections are in place.
Check that socket/plug connection from handle to motor is
inserted correctly; check micro-switch in trigger.
Check that the voltages are present both on the input and
output. Otherwise replace.
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.
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.
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 by experienced motor
repair personnel.
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