The Motor Stops - Husqvarna PG 280 S Workshop Manual

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7.7 The motor stops

ERROR:
The electric motor stops
during operation.
Has the thermistor
fuse blown?
YES
ACTION:
Let the motor cool down.
The overload protection
is automatically reset
after a couple of
minutes.
ACTION:
Replace the electric
motor.
ACTION:
Replace the electronic
motor starter switch.
1022 - 002 -
Has the fuse in the
NO
power source blown?
YES
Is the overload
lamp lit up when
trying to restart the
motor?
YES
Can the motor/
grinding disc easily
be rotated by hand?
Attention! The machine
NO
must be unplugged
and the grinding
tools removed.
YES
Are the starting
and running capacitors
OK? Measure the
capacitance with a
multimeter.
YES
Are the motor
YES
windings OK? Measure
the inductance with help
from this workshop
manual.
ACTION:
Check the wires and
connections in the
NO
electrical cabinet and the
motor connection box
with help from the wiring
diagram.
ACTION:
Reduce the load on the
NO
motor. Check
the power source,
extension cable
dimensions and make
sure your grinding tool
selection is correct.
ACTION:
NO
Replace the capacitors.
ACTION:
NO
Replace the electric
motor.
Troubleshooting - 17

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