Hydraulic Troubleshooting
Problem |
| Cause |
| Remedy |
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|
|
|
|
Cylinder rod will not move | 1. | Broken drive shaft. | 1. | See authorized service dealer. |
| 2. | Shipping plugs left in hydraulic | 2. | Disconnect hydraulic hoses, remove |
|
| hoses. |
| shipping plugs, reconnect hoses. |
| 3. | Set screws in coupling not adjusted | 3. | See operator’s manual for correct |
|
| properly. |
| adjustment. |
| 4. | Loose shaft coupling. | 4. | Correct engine/pump alignment as |
|
|
|
| necessary. |
| 5. | Gear sections damaged. | 5. | See authorized service dealer. |
| 6. | Damaged relief valve. | 6. | See authorized service dealer. |
| 7. | Hydraulic lines blocked. | 7. | Flush and clean hydraulic system. |
| 8. | Incorrect oil level. | 8. | Check oil level. |
| 9. | Damaged directional valve. | 9. | See authorized service dealer. |
| 10. | Blocked directional valve. | 10. | Flush and clean hydraulic system. |
Slow cylinder shaft speed | 1. | Gear sections damaged. | 1. | See authorized service dealer. |
while extending and | 2. | Excessive pump inlet vacuum. | 2. | Make certain pump inlet hoses are clear |
retracting. |
|
|
| and |
|
|
|
| diameter inlet hoses. |
| 3. | Slow engine speed. | 3. | See authorized service dealer. |
| 4. | Damaged relief valve. | 4. | See authorized service dealer. |
| 5. | Incorrect oil level. | 5. | Check oil level. |
| 6. | Contaminated oil. | 6. | Drain oil, clean reservoir, and refill. |
| 7. | Directional valve leaking internally. | 7. | See authorized service dealer. |
| 8. | Internally damaged cylinder. | 8. | See authorized service dealer. |
Leaking cylinder | 1. | Broken seals. | 1. | See authorized service dealer. |
| 2. | Scored cylinder. | 2. | See authorized service dealer. |
Engine runs but wood will | 1. | Small gear section damaged. | 1. | See authorized service dealer. |
not split or wood splits too | 2. | Pump check valve leaking. | 2. | See authorized service dealer. |
slowly | 3. | Excessive pump inlet vacuum. | 3. | Make certain pump inlet hoses are clear |
|
|
|
| and unblocked. |
| 4. | Incorrect oil level. | 4. | Check oil level. |
| 5. | Contaminated oil. | 5. | Drain oil, clean reservoir, and refill. |
| 6. | Directional valve leaking internally. | 6. | See authorized service dealer. |
| 7. | Overloaded cylinder. | 7. | Do not attempt to split wood against the |
|
|
|
| grain. |
| 8. | Internally damaged cylinder. | 8. | See authorized service dealer. |
Engine stalls during | 1. | Low horsepower/weak engine. | 1. | See authorized service dealer. |
splitting | 2. | Overloaded cylinder. | 2. | Do not attempt to split wood against the |
|
|
|
| grain or see authorized service dealer. |
Engine will not turn or | 1. | Engine/pump misalignment. | 1. | Correct alignment as necessary. |
stalls under low load | 2. | Frozen or seized pump. | 2. | See authorized service dealer. |
conditions | 3. | Low horsepower/weak engine. | 3. | See authorized service dealer. |
| 4. | Hydraulic lines blocked. | 4. | Flush and clean hydraulic system. |
| 5. | Blocked directional valve. | 5. | Flush and clean hydraulic system. |
Leaking pump shaft seal | 1. | Broken drive shaft. | 1. | See authorized service dealer. |
| 2. | Engine/pump misalignment. | 2. | Correct alignment as necessary. |
| 3. | Gear sections damaged. | 3. | See authorized service dealer. |
| 4. | Poorly positioned shaft seal. | 4. | See authorized service dealer. |
| 5. | Plugged oil breather. | 5. | Make certain reservoir is properly |
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|
|
| vented. |
NOTE: For repairs beyond those listed here, contact your nearest authorized service center.
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