 Below is the chart to help remedy some common pulley problems. This chart can be used as a general guide and is not meant to be used as sole source of information on pulley problems.
| PROBLEM |
Possible Cause |
Recommended Remedy |
| Frozen or sluggish pulley |
Defecive bearing. |
Replace with new bearing. |
| |
Bent Shaft. |
Remove pulley and replace shaft. Inspect for damage to bearings and replace as necessary. |
| Excessiv noise |
Belt slipping on pulley face. |
Adjust tension at take-up device. |
| |
Loose mounting. |
Tighten mounting. Check level and alignment of pulley shaft or belt will not track properly. |
| |
Bearing not adequately lubricated. |
If bearing is excessively worn, replace with new bearing. Check fit of inner race to ensure against bearing distortion. Check level and alignment at pulley shaft. Check shaft for straightness. |
| |
Bent shaft pulley. |
Remove pulley to replace shaft. Inspect bearings for damage and replace as necessary. |
| |
Loose bearing mount. |
Tighten bearing lock mounting bolts. Check level and alignment of pulley shaft. |
| Excessive wear to belt or pulley face |
Belt tension too low. Belt slips on pulley causing wear. |
Adjust take-up tension until slippage ceases. |
| |
Gritty material ground between belt and pulley. |
Clean pulley face and pulley side of belt by brushing and wiping. Guard against spillage between belt and pulley. |
| |
Splicing fastensers protruding. |
Tighten or replace fasteners as necessary. |
| |
Oil or grease on lagging. |
Remove oil or grease. If lagging has deteriorated, replace pulley. |
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