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Trouble Shooting
The following charts list possible problems that may occur in the operation of the conveyor.
TROUBLE SHOOTING DRIVES
TROUBLE
Conveyor will not start or motor quits frequently.
Drive chain and sprockets wear excessively.
Loud popping or grinding noise.
Motor or reducer overheating.
Belt does not move, but drive runs.
TROUBLE SHOOTING DRIVE BELT TRACKING
TROUBLE
Entire length of belt creeps off at one spot only.
Belt creeps to one side at tail pulley.
Entire belt creeps to one side.
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CAUSE
1) Motor is overloaded.
2) Motor is drawing too much current.
1) Lack of lubrication on chain causing chain
s t retch which creates improper chain to
sprocket mesh.
2) Sprockets are out of alignment.
3) Loose chain.
1) Defective bearing.
2) Loose set screws in bearing.
3) Loose drive chain.
1) Conveyor is overloaded.
2) Low voltage to motor.
3) Low lubricant level in reducer.
1) Conveyor is overloaded.
2) Belt is too loose.
3) Lagging on drive pulley is worn.
CAUSE
1) One or more idlers (usually near trouble
spot) are out of line.
2) One conveyor section not level or square.
3) Material build-up on pulleys or idlers.
1) Tail pulley, return idler, or snub idler near tail
pulley not properly aligned or square with
bed.
1) Conveyor not straight.
2) Conveyor not level.
3) Material build-up on rollers, pulleys, or idlers.
SOLUTION
1) Check for overloading of conveyor.
2) Check heater or circuit breaker and change if necessary.
1) Replace chain and sprockets. Provide adequate lubrication.
NOTE: If problem reoccurs, a chain take-up may be required.
2) Align sprockets. See "Drive Chain Alignment and Tension".
3) Tighten chain.
1) Replace bearing.
2) Tighten set screw.
3) Tighten chain.
1) Check capacity of conveyor and reduce load to recommended
level.
2) Have electrician check and correct as necessary.
3) Relubricate per manufacturer's recommendations. For HYTROL reducer,
refer to separate manual.
1) Reduce load.
2) Use belt take-up to tighten belt.
3) Replace drive pulley lagging and tighten belt.
SOLUTION
1) Adjust idlers as necessary. See "Tracking the belt" in this manual for
details.
2) Make necessary adjustments to supports.
3) Remove residue from pulleys or idlers. install belt, cleaners, or scrappers
if possible.
1) Adjust as necessary. See "Belt Tracking Pre-Tracking Inspection" in this
manual for details.
1) Re-align bed sections as necessary.
2) Correct as necessary.
3) Remove residue and install belt cleaners or scrapers if possible.
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