BELT PROBLEM REFERENCE CHART

Belts do so much to keep your equipment running smoothly. That's why it's important to keep them working in peak condition. Check them regularly to avoid serious problems. The chart below shows some possible signs of belt problems and solutions regarding belts. This chart can be used as a general guide and is not meant to be used as the sole source of information on belt problems.

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