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94
Troubleshooting
DAMAGE
CAUSE
REMEDY
Belt tooth jumping
Abnormal noise level
Belt side abrasion
Belt tooth abrasion
Belt tooth bottom abrasion
Belt back abrasion
Belt back cracking
Belt breakage
Tension member partial tear
Back covering abnormal abrasion
Pulley tooth abrasion
Over load (shock on the machine)
Overload due to machine accident
Shortage of teeth in mesh
Lack of initial tension
Pulley diameter too small
Moment of inertia for start and stop is not considered
Bad pulley alignment
Incorrect pulley tooth shape
Belt wider than pulley diameter
Over load
Belt over-tension
Bad pulley alignment
Poor flange shape
Pulley flange roughness
Presence of particles between belt and pulley
Over load
Over tension
Belt tooth jumping due to lack of initial tension
Bad pulley profile
Over tension
Contact with undesired element (i.e. machine frame)
Running under too low temperature
Pulleys too small
Over load (shock on the machine)
Undesired particles in mesh
Tension member corrosion
Belt run off over pulley flange
Not enough belt teeth in clamping plate
Clamping plate screws tightened incorrectly
Presence of undesired particles in mesh
Improper installation
Belt folded or twisted
Fatigue on side due to bad alignment
Aggressive environment
Presence of undesired particles in mesh
Over load
Belt over tension
Pulley material not adequate (too soft)
Increase belt size/modify design
Prevent reoccur of the accident
Increase teeth in mesh by using an idler
Correct initial tension
Change design
Change design
Adjust alignment
Change pulley
Change design
Change design
Correct initial tension
Adjust alignment
Correct flange bending or change flange
Change flange to an appropriate one
Improve environment or apply a protective cover
Change design (increase belt size)
Correct initial tension
Correct initial tension
Use correct pulley
Correct initial tension
Eliminate contact
Increase environment temperature or ask for special compound
Observe minimum pulley diameter recommendations
Increase belt size/modify design
Improve environment or apply a protective cover
Improve environment or use aramid/stainless steel cords
Adjust alignment and change pulley flange
Use larger clamping plate
Apply optimum torque to clamp plate screws
Improve environment or apply a protective cover
Pay care when installing
Pay care in handling
Correct alignment
Change belt back cover or improve environment conditions
Improve environment or apply a protective cover
Change design
Correct initial tension
Change pulley material or adopt surface treatment