Grinding & Polishing
MODEL BGS-250 GRINDER
SECTION 9
FAULT DIAGNOSIS
73
OPERATING MANUAL
DECEMBER 2008
Fault
Possible Cause
Remedy
Motor does not
switch on
Under voltage trip due to
power interruption
Defective Component
GFCI device
tripped
Check the main power
supply for proper voltage
and switch on again.
Troubleshoot and
replace defective
component.
Reset GFCI device and
retry. If device trips
again, determine cause
and replace.
Motor turns off
while running
Motor protection switch
triggered because of
overload.
Motor protector switch tripped
because of low or under
voltage condition.
Motor defective.
Reduce additional load
or increase extension
cord wire size.
Increase extension cord
wire size.
Have motor checked by
a trained professional to
confirm.
9.2 FAULT DIAGNOSIS – ELECTRICAL SYSTEM
Work on electrical equipment or operating materials may only be
undertaken by a skilled electrician or by trained persons under
the guidance and supervision of a skilled electrician as well as in
accordance with the electrical engineering regulations.
Prior to any repair work on the machine or its drives, the
machine must be secured against unintentional activation. Put
the machine in its Safety off position.
