Faults, Causes And Remedies - Siemens SINAMICS G115D Operating Instructions Manual

Additional information on the SIMOGEAR geared motor
11.3 Specific data gearbox
11.3.22

Faults, causes and remedies

Note
Faults and malfunctions that occur during the warranty period and requiring repair work on
the gearbox must be remedied only by Technical Support. If faults occur without a clearly
identifiable cause, Siemens AG recommends the services of the Technical Support even after
the warranty period has elapsed.
If you need the help from the Technical Support, please have the following information
ready:
• Rating plate data
• Nature and extent of the fault
• Suspected cause
Table 11- 43 Faults, causes and remedies
Faults
Unusual noise on
the gearbox.
Unusual noise
from the drive
unit.
Unusual motor
noise.
Oil escapes.
466
Causes
Oil level too low.
Foreign bodies in the oil (irregu-
lar noise).
Excessive bearing play and / or
bearing defective.
Defective gearing.
Fastening bolts loose.
Excessive external load on the
drive input and output.
Transport damage.
Damage due to blockage during
commissioning.
Drive unit bearing not lubricated
(motor frame size 160 and higher).
Excessive bearing play and / or
bearing defective.
Fastening bolts loose.
Excessive bearing play and / or
bearing defective.
Motor brake is rubbing.
Converter parameterization.
Incorrect oil level for the mount-
ing position being used.
Gearbox leaks.
Overpressure due to lack of
venting.
Overpressure due to soiled venting.
Shaft sealing rings defective.
Cover / flange bolts loose.
Operating Instructions, 12/2020, FW V4.7 SP13, A5E48681219B-002
Remedy
Check the oil level (Page 469).
Checking the oil quality (Page 472). Cleaning
the geared motor (Page 395). General safety
instructions (Page 469).
Check the bearing and replace if necessary.
Check the gearing and replace if necessary.
Checking the tightness of fastening bolts
(Page 481).
Check the load against rated data (you might
need to correct the belt tension, for example).
Check the gearbox for damage in transit.
Call Technical Support.
Regrease the bearing (Page 476).
Check the bearing and replace if necessary.
Checking the tightness of fastening bolts
(Page 481).
Check the bearing and replace if necessary.
Check air gap and adjust if necessary.
Correct the parameterization.
Check the mounting position (Page 482) and
the oil level (Page 469).
Checking the gearbox for leaks (Page 480).
Mount the venting as appropriate for the
mounting position (Page 482).
Clean the venting (Page 480).
Replace the shaft sealing rings.
Checking the tightness of fastening bolts
(Page 481). Continue to monitor the gearbox.
SINAMICS G115D distributed drive