Problem – Diagnosis – Solution: Multi V-belts

Building on Experience

Multi V-belt checklist
Tension Tensioning system??
Damage to back of belt Backside idlers/backside idler bearings?
Foreign object?
Wear on ribbed section, chipping/chunking Foreign object?
Pulley bearings?
Pulley alignment?
Aging?
Contamination Leak from the engine or in the engine compartment?
Operating noise Tension?
Pulley alignment?
Contamination?

 

Multi V-Belts
Problems and probable causes Solutions
Hardened, polished sidewalls  
Incorrect pretension Replace belt, set correct tension
Tensile member of the belt damaged by improper installation Replace belt and install correctly
Uneven profile wear  
Pulley misalignment Check the drive, align pulleys, replace them if necessary, replace belt
Severe belt vibration Check tension, tighten or replace belt if necessary
Belt noise during operation  
Insufficient tension Tighten or replace belt
Service life exceeded Replace belt
Chipping and chunking in base/body rubber  
Insufficient/excessive belt tension Replace belt, set correct tension
Service life exceeded Replace belt
Foreign bodies Replace belt
Belt tears after short period of operation  
Tensile member damaged due to improper installation Replace belt and install correctly
Excessive tension Replace belt, set correct tension
Contamination of the belt  
Leak from engine or in engine compartment (e.g. leaking oil, antifreeze, etc.) Repair leak, replace belt
Damage to back of belt  
Backside idler defective (sluggish, damaged surface, e.g. due to foreign object) Replace belt, replace backside idlers
Severe wear on ribbed section  
Pulleys/idlers/assemblies defective (sluggish) Replace pulleys/idlers/assemblies, replace belt
Pulley misalignment Align or replace pulleys, replace belt
Problem – Diagnosis – Solution:  Multi V-Belts