| BELT PROBLEMS/CAUSES |
| PROBLEM |
MOST LIKELY CAUSE |
OTHER POSSIBLE CAUSES |
| Stack is Misplaced |
Belt squeals or slips.
Sidewall repeatedly worn. |
Cracked underside. |
| Belts rubs the guard |
Damaged tie band.
Sidewall repeatedly worn. |
Cover is worn. |
| Backside idler |
Cover is worn. |
Cracked underside. |
| Improper storage, stored too long |
Cracked underside.
Sidewall repeatedly worn. |
|
| Not enough tension |
Belts excessively vibrate.
Belts comes off pulley.
Sidewall repeatedly worn. |
Belts or squeals or slips. |
| Improper installation of pulley |
|
Wobbling pulley.
Bushings are cracked. |
| Too much tension |
Belts excessively vibrate.
Repeated breakage. |
Hot bearings.
Shaft bends. |
| Pulleys are misaligned |
Belts excessively vibrate.
Damaged tie band.
Sidewall repeatedly worn. |
|
| Pulleys are damaged |
Hot bearings.
Wobbling pulley.
Cracked underside.
Belts excesslively vibrate.
Bushings are cracked.
Shaft bends. |
Belts bottom out.
Damaged tie band.
Belt squeals or slips. |
| Too much heat |
Sidewall repeatedly worn. |
Cracked underside. |
| Bearing too far from pulley |
Hot bearings.
Shaft bends. |
|
| Poor bearing or shaft worn |
Hot bearings.
Wobbling pulley.
Shaft bends. |
|
| Belt has reached end of service life |
Belts bottomout. |
|
| Belts matched up wrong |
Belts excessively vibrate.
Sidewall repeatedly worn. |
|
| Wrong type of belt |
Belt rides too high.
Belts bottom out.
Belts squeals or slips.
Belt comes off pulley. |
|
| Machine induced impulse |
Repeated breakage. |
Belts excessively vibrate.
Belt comes off pulley. |
| Too much oil or grease |
Belt swells, is soft.
Hot bearings.
Belt squeals or slips.
Sidewall repeatedly worn. |
|
| Harsh operating conditions |
Sidewall repeatedly worn. |
|
| Grooves of pulley dirty (particles in them) |
Cracked underside.
Belt comes off pulley.
Repeated breakage. |
|
| Too much moisture |
Belt comes off pulley.
Repeated breakage. |
|
| Insufficient belt on small pulley |
Belt comes off pulley. |
Cover splits. |
