Siemens REDUREX Assembly And Operating Instructions Manual page 55

Faults
Oil leakage from the gear unit.
Oil foaming in the gear unit.
Water in oil.
Increased operating
temperature.
Fault in oil­supply system.
Causes
Inadequate sealing of housing
covers and/or joints.
Radial shaft­sealing rings defective.
Preservation agent not completely
drained.
Oil­supply system has been
operated too long at low
temperatures.
Gear unit too cold in operation.
Water in oil.
Oil too old
(defoaming agent used up).
Unsuitable oils mixed up.
Oil foams in sump.
Defective oil­supply system or
cooling coil.
Gear unit exposed to cold air from
machine­room ventilator: Water
condensing.
Climatic conditions.
Oil level in housing too high.
Oil too old.
Oil badly contaminated.
Defective oil­supply system or
cooling coil.
BA 5200 EN 08/2010
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Remedy
Check and, if necessary,
replace sealings. Seal joints.
Check radial shaft­sealing rings
and, if necessary, replace.
Oil change.
Stop oil­supply system.
Allow the oil to degas.
Shut down gear unit and have oil
degassed. Restart without cooling
water.
Test the oil, change oil if necessary.
Test the oil, change oil if necessary.
Test the oil, change oil if necessary.
Check state of oil by the test­tube
method for water contamination.
Have oil analysed by laboratory.
Check the oil­supply system or
cooling coil, replace any defective
parts. Consult operating instructions
for oil­supply system.
Protect gear unit with suitable heat
insulation. Close air outlet or alter its
direction by structural measures.
Contact Customer Service.
If necessary, fit wet­air filter.
Check oil level and,
if necessary, adjust.
Check date of last oil change and,
if necessary, change oil.
See section 10.
Change oil. See section 10.
Check the oil­supply system or
cooling coil, replace any defective
parts. Consult operating instructions
for oil­supply system.
Consult operating instructions
for oil­supply system.