Abbot & Ashby TM402-200 Manual del usuario - Página 10
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TROUBLESHOOTING
SYMPTOM
1. Low Voltage.
2. Open circuit in motor or loose
connections.
Motor will not start.
3. Blown fuse or breaker.
4. Not plugged in or switched on
at wall
1. Short circuit in line, cord or plug.
Motor will not start –
2. Short circuit in motor or loose
fuses or circuit
connections.
breakers tripping or
3. Incorrect fuses or circuit breakers
blowing.
in power line
1. Motor overloaded.
Motor overheats.
2. Extension cord too long and
insufficient gauge (weight).
1. Short circuit in motor or loose
connections.
Motor stalls (resulting
2. Low voltage.
in blown fuses or
3. Incorrect fuses or circuit breakers
tripped circuit).
in power line.
4. Motor overload.
Machine slows when
1. Feed rate too great.
operating.
1. Machine vibrating.
Wavy condition on
2. Workpiece is not being held firmly
surface of workpiece
3. Wheel face uneven.
4. Wheel is too hard.
Lines on surface of
1. Impurity on surface of wheel.
workpiece.
2. Workpiece not being held tightly
Burning spots or
1. Improper type of grinding wheel.
cracks in the
2. Improper feed rate.
workpiece.
1. Feed rate is too aggressive.
2. Wheel is soft.
Wheel dulls quickly, grit
3. Wheel diameter too small.
falls off
4. Bad wheel dressing.
5. Defective wheel bonding.
Wheel clogs and
1. Wheel is too hard.
workpiece shows
2. Feed rate is too slow.
burn marks.
3. Bad wheel dressing.
10
CAUSE
CORRECTIVE ACTION
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.
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.
1. Reduce load on motor.
2. Utilize an extension cord of appropriate gauge and length or plug
tool directly into outlet.
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.
1. Reduce the rate at which the workpiece is fed into the working
area of the tool
1. Ensure machine is securely mounted on a solid surface.
2. Use a holding device to firmly retain the workpiece.
3. Dress the grinding wheel.
4. Use softer wheel, or reduce the feed rate.
1. Dress the grinding wheel.
2. Try holding the device to more firmly retain
1. Try wheels with softer bond or coarser grit.
2. Slow down the rate at which the workpiece is fed into the wheel.
1. Decrease feed rate of workpiece into grinding wheel.
2. Select a grinding wheel with a harder bond of material.
3. Replace wheel.
4. Dress the wheel.
5. DO NOT USE – return wheel to point of purchase
1. Select a grinding wheel with a softer bond of material.
2. Increase the feed rate of the workpiece into the grinding wheel.
3. Dress the wheel.
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TM402-200 OPERATOR'S MANUAL