TROUBLESHOOTING
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. |
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| Cut material twice, one high pass and |
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| then mow at desired height. |
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| Cut 90 degrees to first pass. |
| Oil on belt from | Be careful not to |
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| lubricant from belt and pulleys with |
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| clean rag. |
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| Replace |
| Belt hung up or rubbing | Check belt position in pulleys and |
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| idlers. |
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| Check belt for free travel in pulleys. |
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| Check under mower and around |
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| blade spindle shaft for wire, rags, or |
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| other foreign material. |
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| Clean all material from under mower. |
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Frayed edges on belt cover | Belt misaligned | |
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| rub any other part while running. |
| Pulley misaligned | Inspect to ensure belt is running in |
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| center of backside idler. |
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| Shim idler as necessary to align. |
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Belt rollover | Pulley misaligned | |
| Damaged belt | Replace belt*. |
| Foreign object in pulley groove | Inspect all pulley grooves for rust, |
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| paint, or weld spots and remove. |
| Worn pulley groove | Replace pulley. |
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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. |
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| Avoid hitting the ground or large |
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| obstructions. |
| Belt came off drive | Check pulleys for foreign material in |
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| grooves. |
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| Avoid hitting solid objects or 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.
MAN0765 (12/5/2008) | Owner Service 23 |
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