MRH-800DS— ROLLERTROUBLESHOOTING
TABLE 9. TROUBLESHOOTING
SYMPTOM | POSSIBLE PROBLEM | SOLUTION | |
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Unit does not travel. | Parking brake still engaged? | Release parking brake lever. | |
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| Defective centrifugal clutch? | Repair or replace clutch. | |
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| Damaged rubber coupling and flange? | Replace rubber coupling and flange. | |
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| Defective travel cable and link? | Repair or replacetravel cable and link. | |
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| Damaged scraper or too much mud in scraper? | Replace or repair scraper. | |
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Unit does not travel or | Damaged or clogged oil filter? | Replace filter. | |
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Damaged or leaking hydraulic pipe? | Repair or replace parts. | ||
travel is not smooth. | |||
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| Low oil level or contaminated oil? | Replenish or replace oil. | |
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| Damaged or leaking hydraulic pump? | Repair or replace hydraulic pump. | |
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| Damaged or leaking hydraulic motor? | Repair or replace hydraulic motor. | |
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| Damaged drum gear and bearing? | Repair parts. | |
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| Bad drum rotation? | Repair or replace drum. | |
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| Defective centrifugal clutch? | Repair or replace clutch. | |
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| Damaged or slipping | Replace | |
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| Damaged vibration cable and linkage? | Replace or repair vibration cable and | |
Unit does not vibrate or | linkage. | ||
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has weak vibration. | Damaged vibration clutch? | Adjust or replace clutch. | |
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| Defective clutch vibrator pulley | Replace | |
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| Vibrator does not turn smoothly with hand? | Check and repair vibrator. Check if oil | |
| level is not excessively high. | ||
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