Maintenance & Service Tips
Click the symptom below that most closely matches your experience.
Won't split wood or slow splitting, engine still runs.
| POSSIBLE CAUSE | SERVICE TIPS |
| Insufficient oil to pump. | Keep oil reservoir full and clean. |
| Foaming-air in oil. | Keep oil reservoir full and clean. Return tube to tank should be below oil level. |
| Excess pump inlet vacuum. | Check pump inlet hose for kinks. Use as short and as large a diameter inlet hose as possible. |
| Leakage through pump check valve. | Contact Customer Service for corrective action. |
| Pump high-pressure gearset damaged. | Contact Customer Service for corrective action. |
| Internal leakage in directional valve. | Contact Customer Service for corrective action. |
| Relief valve setting too low. | Do not adjust valves without the proper equipment (pressure gauges). |
| Cylinder overloaded. | Do not split logs against the grain. |
| Internal leakage in cylinder. | Contact Customer Service for corrective action. |
Engine stalls while splitting.
| POSSIBLE CAUSE | SERVICE TIPS |
| Sequence valve setting too high. | Do not adjust valves without the proper equipment (pressure gauges). Contact Customer Service for corrective action. |
| Relief valve setting too high. | Do not adjust valves without the proper equipment (pressure gauges). |
| Cylinder overloaded. | Do not split logs against the grain. |
| Weak engine--low horse-power. | Contact Customer Service for corrective action. |
Slow cylinder travel extending and retracting.
| POSSIBLE CAUSE | SERVICE TIPS |
| Insufficient oil to pump. | Keep oil reservoir full and clean. |
| Foaming-air in oil. | Keep oil reservoir full and clean. Return tube to tank should be below oil level. |
| Excess pump inlet vacuum. | Check pump inlet hose for kinks. Use as short and as large a diameter inlet hose as possible. |
| Pump gearsets damaged. | Contact Customer Service for corrective action. |
| Internal leakage in directional valve. | Contact Customer Service for corrective action. |
| Relief valve damaged. | Do not adjust valves without the proper equipment (pressure gauges). Contact Customer Service for corrective action. |
| Internal leakage in cylinder. | Contact Customer Service for corrective action. |
| Engine speed too slow. | Contact Customer Service for corrective action. |
Cylinder won't move.
| POSSIBLE CAUSE | SERVICE TIPS |
| Insufficient oil to pump. | Keep oil reservoir full and clean. Tail |
| Pump gearsets damaged. | Contact Customer Service for corrective action. |
| Driveshaft broken. | Contact Customer Service for corrective action. |
| Directional valve damaged. | Contact Customer Service for corrective action. |
| Obstruction in directional valve. | Flush and clean hydraulic system. Contact Customer Service for corrective action. |
| Obstruction in hydraulic lines. | Flush and clean hydraulic system. |
| Relief valve damaged. | Do not adjust valves without the proper equipment (pressure gauges). Contact Customer Service for corrective action. |
| Shalf coupling loose. | Precise alignment of engine and pump is necessary (do not force). |
Engine won't turn or stalls at no load.
| POSSIBLE CAUSE | SERVICE TIPS |
| Pump seized--frozen up. | Contact Customer Service for corrective action. |
| Obstruction in directional valve. | Flush and clean hydraulic system. Contact Customer Service for corrective action. |
| Obstruction in hydraulic lines. | Flush and clean hydraulic system. |
| Weak engine--low horse-power. | Contact Customer Service for corrective action. |
| Improper engine/pump alignment. | Precise alignment of engine and pump is necessary (do not force). |
Pump shaft seal leaks.
| POSSIBLE CAUSE | SERVICE TIPS |
| Tank breather plugged. | Tank must be vented to atmospheric pressure. |
| Shaft seal improperly vented. | Contact Customer Service for corrective action. |
| Pump gearsets damaged. | Contact Customer Service for corrective action. |
| Driveshaft broken. | Contact Customer Service for corrective action. |
| Improper engine/pump alignment. | Precise alignment of engine and pump is necessary (do not force). |
