Section 6: Service; Troubleshooting - Grizzly H8170/H8171 Owner's Manual

SECTION 6: 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.
Operation Tshooting
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. Motor ON/OFF switch is at fault.
4. Wiring is open/has high resistance.
5. Start capacitor faulty.
6. Motor is at fault.
Machine stalls or is 1. Plug/receptacle is at fault.
underpowered.
2. Excessively long extension cord.
3. Motor bearings are at fault.
4. Machine is undersized for the task.
5. Motor has overheated.
6. Motor is at fault.
Machine has 1. Motor or component is loose.
vibration or noisy
.
operation
2. Motor fan is rubbing on fan cover.
3. Dirt in motor fan enclosure
Electric motor 1. Bleeder screw closed.
operating properly
2. Hydraulic fluid low.
but the hydraulic
3. Hydraulic system damaged or fluid is leak-
ram won't split logs.
ing out.
Ram works, but logs 1. Log unsuitable: twisted grain, high moisture
are hard to split.
content, heavily knotted.
2. Splitting wedge is dull.
3. Splitting wedge is damaged.
Ram does not 1. Debris lodged in the ram return path or in
retract properly.
the return springs.
2. Damaged seals in hydraulic system.
H8170/H8171 Hydraulic/Electric Log Splitter

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. Replace faulty ON/OFF switch.
4. Check for broken wires or disconnected/corroded
connections, and repair/replace as necessary.
5. Test/repair/replace.
6. Test/repair/replace.
1. Test for good contacts; correct the wiring.
2. Move splitter closer to the power supply.
3. Test by rotating shaft; rotational grinding/loose shaft
requires bearing replacement.
4. Stop operation.
5. Clean off motor, let cool, and reduce workload.
6. 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. Clean, reassemble.
1. Open screw two full turns.
2. Check fluid level, add fluid.
3. Repair/replace damaged parts.
1. Don't attempt to split unsuitable logs.
2. Sharpen wedge.
3. Stop operations/repair wedge.
1. Clear debris.
2. Repair/replace damaged parts.
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