Trouble Shooting - HYTROL 138-ACC Manual De Instalacion Y Mantenimiento Con Informacion Sobre Seguridad Y Lista De Partes

Trouble Shooting

The following charts list possible problems that may occur in the operation of a powered conveyor.
TROUBLE SHOOTING DRIVES
TROUBLE
Conveyor will not start or motor quits fre-
quently.
Drive chain and sprockets wear excessively.
Loud popping or grinding noise.
Motor or reducer overheating.
TROUBLE SHOOTING DRIVE BELT TRACKING
TROUBLE
Belt slips or won't move, but drive runs.
Belt moving, but tread rollers not turning.
22
CAUSE
1) Motor is overloaded.
2) Motor is drawing too much current.
1) Lack of lubrication on chain causing chain
stretch 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.
CAUSE
1) Conveyor is overloaded
2) Belt too loose.
3) Too much pressure against belt from
pressure rollers
1) Not enough pressure against belt from
pressure rollers.
2) Bolt in the pressure roller suspension
angle binding will not allow adjustment of
pressure rollers.
3) Missing or broken springs or adjustment
nuts.
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.
SOLUTION
1) Check capacity of conveyor and reduce load to recommended level.
2) Re-position take-up sheaves in hole closer to double groove
sheaves.
3) Loosen spring tension on pressure rollers in area of stalled rollers.
See "Minimum Pressure Adjustment" in Operation section of this
manual.
1) Tighten spring tension on pressure rollers in area of stalled rollers.
See "Minimum Pressure Adjustment" in Operation section of this
manual.
2) Loosen bolt and adjust spring tension as required. Check for burs
or foreign material behind angles.
3) Replace and re-adjust.