46 / 60
Troubleshooting
V-Belts Performance Analysis
Cause of Failure
– Excessive exposure to oil or grease has
caused the belt to swell, become soft and the bottom envelope
seam to “open up.”
Correction
– Provide splash guards, do not over lubricate and
clean belts and sheaves with gasoline.
Cause of Failure
– Constant slippage caused by insufficient
tension in belt.
Correction
– Tension drive in accordance with the
recommendations of the equipment manufacturer and
this manual.
Cause of Failure
– Belt has evenly spaced deep bottom cracks
from use of a substandard backside idler.
Correction
– Replace backside idler with the minimum
size recommendation.
Cause of Failure
–
Severe localized wear caused by a frozen or
locked driven sheave.
Correction
– Determine that the drive components turn freely
and tighten belt, if necessary.
Cause of Failure
– Cut bottom and sidewall indicate belt was
pried over sheave and damaged during installation.
Correction
– Be sure to use proper length belt and move
tensioning all the way “in” when installing belt.
Cause of Failure
– Weathering or “crazing” caused by the
elements and aggravated by small sheaves.
Correction
– Provide protection for the drive and replace belt
or belts.
46
Troubleshooting
V-Belts Performance Analysis