Troubleshooting - BONFIGLIOLI 300 Series Installation Use And Service Manual

10.0 - TROUBLESHOOTING

The following information is intended to serve as an aid in locating and eliminating defects and faults. In
some cases, problems may be caused by the plant or machine to which the gear unit is assembled and hen-
ce, the cause and remedy will be described in the Manufacturer's technical documentation for the machi-
ne/plant in question.
FAULT
Bearing temperature too high
Operating temperature too high
Abnormal running noise
Abnormal noise at gear unit
mounting
Oil leaks
Gear unit does not run or runs
with difficulty
Output shaft does not turn with
motor running
CAUSE
Oil level too low
Oil spent
Defective bearings
Oil level too high
Oil spent
Contaminant in oil
Gears damaged
Bearing axial backlash too high
Bearings defective or worn
Excessive load applied
Contaminant in oil
Mounting bolts loose
Mounting bolts worn
Oil level too high
Casing/coupling seals inadequate
Gaskets worn
Oil viscosity too high
Oil level too high
Excessive load applied
Gears damaged
REMEDY
Top up oil level
Replace oil
Contact authorised workshop
Check oil level
Replace oil
Replace oil
Contact authorised workshop
Contact authorised workshop
Contact authorised workshop
Correct load to rated values given
in Sales Catalogue
Replace oil
Tighten bolts to specified torque
Replace bolts
Check oil level
Contact authorised workshop
Contact authorised workshop
Replace oil (see recommended
lubricant chart)
Check oil level
Redesign drive for actual load
required
Contact authorised workshop
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