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gahe / BA EvoGear status as of July 13, 2021
Page 18 of 22
10.2 Possible Faults
Faults
Causes
Remedy
•
Changed operating
noise
•
Damage to gearings
•
Bearing clearance is increased.
•
Bearing is defective
•
Check geared components; if
necessary, replace any damaged
components
•
Adjust the bearing clearance, contact
the Service Department
•
Replace defective bearing, contact
the Service Department
•
Increased
temperature at the
bearing points
•
Oil level in the gearbox housing
is too low or too high
•
Oil is too old
•
Bearing is defective
•
Check oil level at room temperature,
if necessary replenish or drain oil.
•
Check when the last oil change has
been carried out.
•
If necessary, change the oil
•
Check the bearing condition; replace
if necessary; contact the Service
Department
•
Gearbox is oily on
the outside
•
Insufficient sealing of the
bearing flanges and gearbox
covers
•
Check seals, replace if necessary
•
Seal the bearing flanges and gearbox
covers
•
Oil leakage at the
ventilation filter
•
Oil foams
•
Oil level in the gearbox too high
•
Incorrect design of the
ventilation
•
See fault
“Oil foams in gearbox”
•
Decrease oil level in gearbox to the
specified level
•
Prevent any direct oil injection by
attaching suitable extensions or
angle pieces
•
Oil leakage from
the shafts
•
Radial shaft seal rings or seal
seat defective or pressed out of
its seat
•
Check radial shaft seal rings, replace
if necessary.
•
Oil foams in the
gearbox
•
Water in the oil
•
Oil too old (De-foaming agent
used up).
•
Unsuitable oils mixed up
•
Examine oil condition for water
ingress by means of a test tube
sample.
•
Have the oil sample analysed,
change the oil
•
Examine oil, change oil
•
Examine oil, change oil
•
Water in the oil
•
Water condenses in the
gearbox due to external climatic
conditions, sun, wind, cold:
Ambient temperatures change
to a large extent
•
Protect gearbox against temperature
influences
•
Increased
operating
temperature
•
Oil level in the gearbox too high.
•
Oil is too old
Oil is highly contaminated
•
Check the oil level. Correct if
necessary.
•
Check when the last oil change was
carried out, change the oil
•
Have the oil sample analysed,
change the oil
