1.71 | TROUBLE SHOOTING | 1.71 |
TROUBLE SHOOTING | Continued. |
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PROBLEM | POSSIBLE CAUSE | REMEDY |
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Cutterheads fail to start | Faulty seat sensor switch. | Check mechanical and elec- | ||
up when lowered into |
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| trical operation of switch. | |
work. |
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| Low oil level. | Fill hydraulic oil reservoir to | ||
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| correct level. | |
| Diverter valve jammed. | Free off and lubricate or | ||
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| replace the diverter valve as | |
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| necessary. | |
| Sheared drive shaft. | Check motor and cylinder | ||
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| drive shafts and replace if | |
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| necessary. | |
Pressure relief valve jammed open or wrongly set.
Cutting cylinder jammed.
Cutting cylinder tight on bottom blade.
Cutterhead control valve in the ‘off’ position caused by:
-Defective control valve.
-Electrical fault.
Have relief valve cleaned and pressure checked. Consult your Hayter dealer.
Free off as necessary.
Readjust setting.
Overhaul control valve.
Have electrical system checked.
Cylinders rotate in | Hoses wrongly connected. | Check hydraulic circuit and |
wrong direction. |
| reconnect as necessary. |
| Cutterhead drive switch wrongly connected. | Check switch electrical con- |
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| nections. |
924916KG251004