TROUBLE SHOOTING
BELT CONDITIONS
PROBLEM | POSSIBLE CAUSE | SOLUTION |
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Belt slippage | Mower overloading; Material too | Reduce tractor ground speed but |
| tall or heavy | maintain full PTO rpm. Cut material |
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| twice, one high pass and then mow at |
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| desired height. Cut at 90 degrees to |
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| first pass. |
| Oil on belt from over lubrication | Be careful not to |
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| lubricant from belt and pulleys with |
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| clean rag. Replace |
| Belt hung up or rubbing | Check belt position in pulleys and |
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| idlers. Check belt for free travel in |
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| pulleys. Check under mower and |
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| around blade spindle shaft for wire, |
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| rags, or other foreign material. Clean |
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| all material from under mower. |
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Frayed edges on belt cover | Belt misaligned or belt rubbing | |
| guide | rub any other part while running. |
| Pulley misaligned | Inspect to ensure belt is running in |
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| center of backside idler. Shim idler as |
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| necessary to align. |
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Damaged belt | Rollover, high shock loads or | Replace belt.* |
| installation damaged |
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Belt breakage | High shock loads | Avoid abusive mowing. Avoid hitting |
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| the ground or large obstructions. |
| Belt came off drive | Check pulleys for foreign material in |
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| grooves. Avoid hitting solid objects or |
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| ground. |
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*Check belt for damage by laying it flat on the floor. A belt that does not lie flat (has humps or twists, indicating broken or stretched cords) must be replaced.
20 Troubleshooting | MAN0845 (1/12/2011) |
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