MAINTENANCE
11
Maintenance
Required Frequency
1. Check power cord
Before each use.
2. Check wheels for cracks
Before each use.
3. Check moving parts for alignment and binding issues
Before each use.
5. Dress grinding wheels
As needed.
4. Check the worklight
Before each use.
6. Replace grinding wheels (see manual section for specifics)
As needed.
7. Clean and vacuum dust from the motor housing and other grinder parts As needed.
Service beyond recommended maintenance on these tools should only be performed by an
authorized, qualified technician.
TROUBLESHOOTING
12
Service on these tools should only be performed by an authorized, qualified technician.
SYMPTOM
PROBABLE CAUSE
CORRECTIVE ACTION
Motor will not start.
1.Low Voltage.
2.Open circuit in motor or loose
connections.
3.Blown fuse or breaker.
1.Check power source for proper voltage.
2.Inspect all lead connection on motor
for loose or open connections.
(Send for Servicing.)
3.Short circuit.
(Send for Servicing.)
4.Improper match between tool and
circuit, fuse or breaker.
Motor will not start
-fuses or circuit breakers
tripping or blowing.
1.Short circuit in line, cord or
plug.
2.Short circuit in motor or loose
connections.
3.Incorrect fuses or circuit
breakers in power line.
1.Inspect cord or plug for damaged
insulation and shorted wires.
2.Inspect all connections on motor for
loose or shorted terminals and/or
worn insulation.
3.Install correct fuses or circuit breakers
or switch tool to an appropriately
sized circuit.
Motor overheats.
4.Motor overloaded.
5.Extension cord too long and
of insufficient gauge (weight).
4.Reduce load on motor.
5.Utilize an extension cord of
appropriate gauge and length or
plug tool directly into outlet.
Motor stalls (resulting
in blown fuses or
tripped circuit).
1. Short circuit in motor or
loose connections.
2. Low voltage
3. Incorrect fuses or circuit
breakers in power line.
4. Motor overload.
1.Inspect connections on motor for
loose or shorted terminals or worn
insulation.
(Send for Servicing.)
2.Correct low voltage conditions
(for example: improper extension
cord length and/or gauge).
3.Install correct fuses or circuit
breakers or plug tool into an
appropriate circuit, matched to
an appropriate fuse or breaker.
4.Reduce the load on the motor.
Machine slows
when operating.
1.Reduce the rate at which the workpiece
1.Feed rate too great.
is fed into the working area of the tool
the tool (grinding wheel).
