Section 7: Service; Troubleshooting - Grizzly H8259 Owner's Manual

SECTION 7: SERVICE

Review the troubleshooting and procedures in this section to fix or adjust your machine if a problem devel-
ops. If you need replacement parts or you are unsure of your repair skills, then feel free to call our Technical
Support at (570) 546-9663.
Motor & Electrical
Symptom Possible Cause
Machine does not 1. Plug/receptacle is at fault or wired incor-
start or a breaker
rectly.
trips.
2. Power supply is at fault/switched OFF.
3. Lockout key is at fault.
4. Motor ON button or ON/OFF switch is at
fault.
5. Wiring is at fault.
6. Motor is at fault.
Machine stalls or is 1. Plug/receptacle is at fault.
underpowered.
2. Motor bearings are at fault.
3. Motor has overheated.
4. Motor is at fault.
Machine has vibra- 1. Motor or component is loose.
tion or noisy opera-
tion.
2. Motor fan is rubbing on fan cover.
3. Workpiece or chuck is at fault.
4. Motor bearings are at fault.
Wood Lathe Operation
Symptom Possible Cause
Vibration noise 1. Belt cover loose.
while machine
is running; noise
changes when 2. Belt cover bent or dented and is making
speed is changed. contact with the motor pulley or belt.
H8259 10" x 18" Benchtop Lathe

Troubleshooting

Possible Solution
1. Test for good contacts; correct the wiring.
2. Ensure hot lines have correct voltage on all legs and
main power supply is switched ON.
3. Install/replace lockout key; replace switch.
4. Replace faulty ON button or ON/OFF switch.
5. Check for broken wires or disconnected/corroded
connections, and repair/replace as necessary.
6. Test/repair/replace.
1. Test for good contacts; correct the wiring.
2. Test by rotating shaft; rotational grinding/loose shaft
requires bearing replacement.
3. Clean off motor, let cool, and reduce workload.
4. Test/repair/replace.
1. Inspect/replace stripped or damaged bolts/nuts, and
re-tighten with thread locking fluid.
2. Replace dented fan cover; replace loose/damaged
fan.
3. Center workpiece in chuck or face plate; reduce
RPM; replace defective chuck.
4. Test by rotating shaft; rotational grinding/loose shaft
requires bearing replacement.
Possible Solution
1. Tighten the belt cover lock handle; if necessary
install a soft, vibration dampening material (between
the belt cover and the headstock casting.
2. Remove belt cover and inspect the inside for dents,
bends, or indications of rubbing. Tap out the dent
with a rubber mallet, bend back into proper shape,
or shim belt cover away from the motor pulley.
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