Page 37 - Goodyear2011PTMaintenanceManual

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, clean
belts and sheaves with gasoline.
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 — 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 — Split on side at the belt pitch line indicates use
of a sheave with a substandard diameter.
Correction — Redesign drive to utilize proper size sheaves.
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.
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 — Rough sheave sidewalls cause the cover
to wear off in an uneven pattern.
Correction — File or machine out the rough spot on the sheave
groove. If beyond repair, replace the sheave.
Cause of Failure — Ply separation caused by substandard sheave
diameter.
Correction — Redesign drive to use proper size sheaves.
Cause of Failure — The load carrying member has been broken by a
shock load or damage during installation.
Correction — Maintain proper tensioning and observe proper
installation procedures.
37
INSTALLATION GUIDE
Troubleshooting V-Belt Performance Analysis