14
brushes when either has less than
6.35mm (1/4”) length of carbon
remaining.
Do not replace one side without
replacing the other.
• Reassemble using new brush
assemblies. Make sure curvature of
brush matches curvature of motor
and that brush moves freely in brush
tube.
• Make sure brush cap is oriented
correctly (straight) and replace.
• Tighten brush cap securely. Do not
overtighten.
TROUBLESHOOTING
PROBLEM
CAUSE
SOLUTION
Machine does
not start.
1.Power cord
not plugged in.
2.Power cord is
damaged.
3.Circuit
breaker is
tripped.
4.Circuit fuse is
blown.
5.Switch is
damaged or
burned out.
1. Plug in cord.
2. Have the
cord replaced
at your nearest
authorized
service center.
3. Reset circuit
breaker.
4. Replace
circuit fuse.
5. Have the
switch replaced
at your nearest
authorized
service center.
Motor does not
reach full.
1. Voltage from
power source.
2. Circuit is
overloaded.
3. Motor burned
out.
4. Fuses or
circuit breakers
are
wrong size.
5. Extension
cord is too long.
6. Switch is
defective.
1. Request a
voltage check.
2.Test on a
different circuit
or without
anything else
on circuit.
3. Have tool
serviced and
request a
voltage
check.
4. Have an
electrician
replace with a
circuit
breaker.
5. Use a shorter
extension cord.
6. Have the
switch replaced
at your nearest
authorized
service center.
Motor stalls,
blows fuses,
or trips circuit
breakers.
1. Switch is
defective.
2. Voltage from
source is low.
3. Fuses or
circuit breakers
are
wrong size or
defective.
1. Have the
switch replaced
at your nearest
authorized
service center.
2. Request a
voltage check.
3. Have an
electrician
replace with a
circuit
breaker.
Motor
overheats.
1. Motor is
overloaded.
2. Wheel is
being fed into
work
too fast.
1. Request a
voltage check.
2. Feed wheel
into work
slower.
Machine is
noisy when
running.
1. Motor needs
attention.
1. Have the
motor checked
at your nearest
authorized
service center.
Wheel hits
table.
1. Wheel
not properly
installed.
2. Depth
stop setting
incorrect.
1. See
“Removal and
Installation of
Wheel”
section.
2. Adjust the
depth stop. See
“Depth Stop”
section.
Wheel does
not cut through
workpiece.
1. Depth
stop setting
incorrect.
2. Wheel worn
too much.
3. Incorrect
cutting
operation.
1. Adjust the
depth stop. See
“Depth Stop”
section.
2. Replace with
a new 355 mm
abrasive cut
off wheel.
3. See “Cut-Off”
section.
Machine
vibrates or
shakes
1. Wheel is out-
of-round.
2. Wheel is
chipped.
3. Wheel is
loose.
4. Machine is
not secure.
5. Work surface
is uneven.
1. Replace
wheel.
2. Replace
wheel.
3. Tighten
wheel bolt on
arbor.
4. Check and
tighten all
hardware.
5. Relocate and
secure on a flat
surface.
