HYDRAULIC SCHEMATIC
HYDRAULIC TROUBLESHOOTING
PROBLEM | CAUSE | SOLUTION | |
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Hopper will not lift | Loss of power to rocker | Key switch must be on check circuit breaker | |
switch | |||
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| ||
| Low hydraulic fluid | Add hydraulic fluid | |
| Hopper overloaded | Empty hopper | |
| Rocker switch failure | Test – replace switch | |
| Speed control orifice | Clean or replace orifice (located behind the lower | |
| plugged | cylinder fitting) | |
| Pump solenoid failure | Replace pump solenoid | |
| Check valve failure | Replace check valve or solenoid | |
| Lift cylinder failure | Replace cylinder seals | |
| Gear pump failure | Replace pump or pump motor | |
Hopper will not lower | Loss of power to rocker | Key switch must be on, check circuit breaker | |
switch | |||
|
| ||
| Rocker switch failure | Test – replace switch | |
| Speed control orifice | Clean or replace orifice (located behind the lower | |
| plugged | cylinder fitting) | |
| Check valve failure | Replace check valve or solenoid |
| QTFSG/QTFSD 98349 05/15/03 |
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