Section 7: Service; Troubleshooting - Grizzly T10814 Owner's Manual

SECTION 7: SERVICE

Review the troubleshooting and procedures in this section if a problem develops with your machine. If you
need replacement parts or additional help with a procedure, call our Technical Support at (570) 546-9663.
Note: Please gather the serial number and manufacture date of your machine before calling.
Symptom Possible Cause
Grinding wheel 1. Belt is loose.
slows during
operation.
Spindle is noisy 1. Damaged spindle bearing.
during operation.
Tooling finish is not 1. Grinding wheel not true to spindle.
smooth.
2. Grinding wheel loaded up.
3. Wrong type of grinding wheel being used.
Machine vibrates 1. Machine not sitting flat.
during operation.
2. Grinding wheel out of balance.
3. Grinding wheel loose.
4. Motor or component loose.
5. Motor bearings at fault.
Machine does not 1. Break or short in wiring; or loose
start.
connections.
2. Power supply switched off/has incorrect
voltage.
3. Wall circuit breaker tripped.
4. Motor ON/OFF switch at fault.
5. Capacitor at fault.
6. Motor at fault.
Machine stalls or is 1. Plug/receptacle at fault.
underpowered.
2. Machine undersized for task.
3. Motor at fault.
4. Motor bearings at fault.
Grinding wheel 1. Too much pressure applied.
clogs or dulls
2. Grinding wheel loaded up.
quickly.
3. Grinding wheel stored in damp
environment.
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Troubleshooting

Possible Solution
1. Adjust tension of belt (see Belt Tension &
Replacement on Page 32).
1. Replace bearing.
1. True the grinding wheel (see Truing/Dressing
Wheel on Page 21).
2. Dress grinding wheel (see Truing/Dressing Wheel
on Page 21); replace grinding wheel.
3. Ensure grinding wheel is appropriate to tooling
material.
1. Ensure machine is on solid, flat surface.
2. True the grinding wheel (see Truing/Dressing
Wheel on Page 21).
3. Retighten grinding wheel with wheel puller.
4. Inspect/replace damaged bolts/nuts and retighten.
5. Test by rotating shaft; loose/grinding spindle
requires bearing replacement.
1. Trace/replace broken or corroded wires; fix loose
connections.
2. Switch power supply on/verify voltage.
3. Ensure circuit size is correct/replace weak breaker.
4. Replace switch.
5. Test/repair/replace.
6. Test/repair/replace.
1. Test for good contacts/correct wiring.
2. Use new grinding wheel; reduce feed rate.
3. Test/repair/replace.
4. Test by rotating shaft; loose/grinding spindle
requires bearing replacement.
1. Reduce pressure and feed rate.
2. Dress grinding wheel (see Truing/Dressing Wheel
on Page 21); replace grinding wheel.
3. Replace grinding wheel; store wheels in cool, dry
area.
Model T10814 (Mfd. Since 5/15)