Cyclo® HBB
Operation & Maintenance Manual 45
Cyclo® HBB
Troubleshooting
This troubleshooting guide provides assistance in identifying and overcoming common problems in reducers and motors. If you have a
problem with the reducer and/or the motor that is not listed below, please consult the factory for assistance.
Problem with the Reducer Possible Causes Suggested Remedy
Runs Hot
Overloading Load exceeds capacity of the reducer
Checktheratedcapacityofthereducer,replacewithunitofsucientcapacity
or reduce the load.
Improper lubrication
Insufficient lubricant Checklubricantlevelandincreasetorecommendedlevels.
Excessive lubricant Checklubricantlevelandreducetorecommendedlevel.
Incorrect lubricant Flush old lubricant from the unit and refill with correct recommended lubricant.
Vibration or
Noise
Loose foundation bolts
Weakmountingstructure
Inspect mounting of reducer. Tighten loose bolts and/or reinforce mounting &
structure.
Loose hold-down bolts Tighten bolts.
Worn disc and/or helical
gearing
Overloading of the unit may result in
damage to the Helical gearing and/or the
Cycloid discs.
If helical gearset is damaged, contact the factory.
If Cycloid discs are damaged, disassemble the Cyclo® portion and replace discs.
Re-checktheratedcapacityoftheunit.
Bearing Failure
Maybeduetolackoflubricant
If output bearings are damaged, contact the factory.
If bearings in Cyclo® portion are damaged, replace the affected bearings. Clean &
flush the reducer and fill with the correct type and quantity of lubricant.
Overload
Checktheratedcapacityofthereducer.Replacewithunitofsucientcapacity
or reduce the driven load.
Insufficient Lubricant
Level of lubricant in the reducer not
properly maintained.
Checklubricantlevelandadjusttofactory-recommendedlevel.
Damaged Cyclo® pins
and rollers
Overloading of reducer
Disassemble Cyclo® portion of reducer and replace ring
gearhousingpinsandrollers.Checkloadonreducer.
Output
Shaft/Hub does
not turn
Motorshaftbroken
Overloading of reducer can cause
this type of damage.
Replacebrokenshaft.Checkratedcapacityofreducer.
Inputshaftkeymissing
orbroken
Replacekey.
Eccentric bearing
broken
LackofLubricant
Replace the Eccentric Bearing in the Cyclo® portion. Flush
and refill the unit with the recommended lubricant.
Motor does not turn Motor Refer to the “Motor” portion of this Troubleshooting guide.
Oil Leakage
Worn seals
Caused by dirt or grit entering the seal
area.
Replace the oil seals. The breather filter may be clogged Replace or clean filter.
Leakageintomotor
Reducer has been overfilled with
lubricant.
Checkthelubricantlevelandadjusttotherecommendedlevel.
Air breather clogged.
Clean or replace element, being sure to prevent any dirt from falling into the
reducer.
Improper mounting position, such as
other than designed mounting angle.
Mount the unit in it’s designed mounting angle.