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Troubleshooting
Symptom
>
Belt is slipping or stops under load
Belt does not move without load
Belt will not track at drive end
Belt will not track at tail end
Belt will not track at center idlers
Belt is brittle, delaminating or is discolored
Motor is hot
Speed reducer is getting hot
Speed reducer is leaking oil
Bearing noise
Belt is traveling reverse of desired direction
Conveyor belt has prematurely worn out
If you are unable to remedy the problem with these corrective actions, please contact QC Conveyors Customer Service at (513) 753-6000. Failure to correct the problem may
lead to abnormal use of the conveyor, thereby voiding the warranty.
Possible Cause
Demand is more than the conveyor is rated for
Lubrication between drive pulley and belt
Belt is not tensioned properly
Timing belt under drive guard is not connected
Belt is not tensioned properly
Accumulation or belt wear
Improper tension
Irregular product loading or belt wear
Improper tension
Belt is being attacked by chemicals or excessive heat
Belt life has expired
Urethane belts can discolor when exposed to UV light
Motor can run with a skin temperature of 221ºF
Motor is not protected with overload protection and is
drawing too much current.
Speed reducer can run with skin temperature of 225ºF
Speed reducer's life has expired
Installation was performed incorrectly and input seal
was damaged
Bearings are damaged or failing
Motor or speed reducer not wired properly
Correct belt not selected for application
Corrective Action
Verify conveyor capacity
Clean bottom of belt and drive pulley
Refer to section on tensioning the belt (page 26)
Contact factory
Refer to section on tensioning the belt (page 26)
Refer to Belt Tracking section of this manual (page 23)
Refer to Belt Tensioning section of this manual (page 26)
Refer to Belt Tracking section of this manual (page 23)
Refer to Belt Tensioning section of this manual (page 26)
Contact factory to discuss belt application
Replace belt
No corrective action
No corrective action
Install overload protection on motor
No corrective action
Replace speed reducer
Replace speed reducer
Refer to Bearing Replacement section of this manual
(page 28)
Check wiring and correct per wiring instructions
Contact factory to discuss belt application
AS40-CD Conveyors | Installation & Maintenance Instructions
19
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