Sumitomo Bevel Buddybox 4 - Troubleshooting; Reducer and Motor Problem Diagnosis and Solutions

Manual BBB4_ENG_01_2016_991301 55
Troubleshooting
ReducerTroubleshooting
ReducerTroubleshooting
This troubleshooting guide provides assistance in identifying and overcoming common problems with reducers and motors. If a
problemwiththereducerand/orthemotorisnotlistedbelow,pleaseconsultthefactoryforassistance.
ReducerTroubleshooting
Problem with the Reducer Possible Causes SuggestedRemedy
Runs Hot
Overloading Load exceeds capacity of the reducer
Checktheratedcapacityofthereducer,replacewithunitofsucientcapacity
or reduce the load
Improper lubrication
Insucientlubricant Check lubricant level and increase to recommended level
Excessive lubricant Check lubricant level and reduce to recommended level
Incorrect lubricant Flush old lubricant from the unit and refill with correct recommended lubricant
Vibration or
Noise
Loose foundation bolts
Weak mounting structure
Inspectmountingofreducer.Tightenlooseboltsand/orreinforcemounting&
structure
Loose hold-down bolts Tighten bolts
Worn disc and/or bevel
gearing
Load exceeds capacity of reducer
Ifbevelgearsetisdamaged,contactthefactory.
IfCycloiddiscsaredamaged,disassembletheCycloportionandreplacediscs.
Re-check the rated capacity of the unit
Bearing failure
Insucientlubricant
Ifoutputbearingsaredamaged,contactthefactory
IfbearingsinCycloportionaredamaged,replacetheaectedbearings.Clean&
flush the reducer and fill with the correct type and quantity of lubricant
Load exceeds capacity of reducer
Checktheratedcapacityofthereducer.Replacewithunitofsucientcapacity
or reduce the driven load
Insucientlubricant Insucientlubricant Checklubricantlevelandadjusttorecommendedlevel
Damaged Cyclo pins
and rollers
Load exceeds capacity of reducer
Disassemble Cyclo portion of reducer and replace ring
gear housing pins and rollers. Check load on reducer
Output
Shaft/Hub
does
not turn
Motor shaft broken
Load exceeds capacity of reducer or
repetitive shock loading
Replace broken shaft. Check rated capacity of reducer
Key missing or sheared
off on input shaft
Replace key
Eccentric bearing
broken
Insucientlubricant
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
Leakage into motor
Excessive lubricant
Checkthelubricantlevelandadjusttotherecommendedlevel
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 its designed mounting angle