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Belt Wizard Home Page
Utilities Page
Premature Belt Failure
 Belt Stretches Beyond 
 Banded (Joined) Belt Problems
Bearings Running Too Hot
Sprocket Problems
Belt Noise
Problems With Pulleys
Performance Problems
V Belts Turn Over or Come Off
Unusual Vibration
Problems With Other Drive Parts
Synchronous Belt Problems

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Blue Diamond Belt Problem Wizard - Unusual Vibration

The table below lists the possible causes for premature belt failures. To return to the wizard main menu please click here.

Symptoms Probable Cause Solution
Belts flapping 1. Belts under-tensioned
2. Mismatched belts
3. Pulleys misalignment		 1. Retention
2. Install new matched set
3. Align pulleys
Excessive vibration in drive system 1. Incorrect belt
2. Poor machine or equipment design
3. Pulley out of round
4. Loose drive components		 1. Use correct belt cross-section in
    pulley
2. Check structure and brackets for adequate strength
3. Replace pulley
4. Check machine components and
    guards, motor mounts, motor pads,
    bushings, brackets and framework for
    stability, adequate design strength,
    proper maintenance and proper
    installation

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