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TABLE 13 Sheaves Worn or Damaged
Symptom / Observation Possible Causes
Sheave grooves worn
(check with groove
gauge).
Sheaves damaged or
broken.
TABLE 14 Belt Moves and Vibrates
Symptom / Observation Possible Causes
Belt moves too much and
laterally.
Belt vibrates.
4283528M1
Excessive belt tension.
Contamination of sheave grooves
with damaging trash or debris.
Belt forced onto the sheaves.
Trash or debris fell into the sheave
grooves.
Not correct method used to install
the sheave.
Belt tension too loose.
Sheaves not aligned.
Belt strands not extended equally.
Excessive radial or lateral run out
of the sheaves.
Loose drive components.
Belt profile does not equal the
sheave groove profile.
General Information
Corrections / Remedy
Replace the worn sheaves.
Properly install new belt and adjust the
tension.
Replace the worn sheaves.
Correct the cause or source of damaging trash
or debris entering the sheave grooves.
Make sure all protective shields are installed.
Properly install new belt and adjust the
tension.
Replace damaged or broken sheaves.
Back off tension when installing belt.
Replace the worn sheaves.
Correct the cause of damaging trash or debris
entering the sheave grooves.
Make sure all protective shields are installed.
Properly install the new belt and adjust the
tension.
Used correct method to install the sheave.
Corrections / Remedy
Properly adjust the belt tension.
Align the sheaves.
Adjust the belt tension.
Properly install a new original equipment belt
and adjust the belt tensioner.
Replace the sheaves with defects.
Tighten the loose drive components.
Properly install a new original equipment belt
and adjust the belt tensioner.
01-35
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