General Notes About Maintenance Work - Siemens SINAMICS G115D Operating Instructions Manual

Additional information on the SIMOGEAR geared motor
12.3 Specific data gearbox
Faults
Gearbox over‐
heats.
Output shaft does
not turn when the
motor is running.
Geared motor only
starts with difficul‐
ty or not at all.
Excessive play at
drive input and out‐
put.
Speed and torque
drop.
12.3.23

General notes about maintenance work

Unintentional starting of the drive unit
Secure the drive unit to prevent it from being started up unintentionally.
Attach a warning notice to the start switch.
512
Causes
Motor fan cover and / or gearbox very
dirty.
Incorrect oil level for the mounting posi‐
tion being used.
Incorrect oil being used (e.g. incorrect
viscosity).
Oil is too old.
Excessive bearing play and / or bearing
defective.
Coolant temperature outside the per‐
missible range.
Force flow interrupted by breakage in
gearbox.
Incorrect oil level for the mounting posi‐
tion being used.
Incorrect oil being used (e.g. incorrect
viscosity).
Excessive external load on the drive in‐
put and output.
Motor brake is not released.
Flexible elements worn (e.g. on cou‐
plings).
Positive connection disrupted by over‐
load.
Belt tension too low (for belt drive).
WARNING
Remedy
Clean the fan cover and surface of the
geared motor (Page 437).
Check the mounting position
(Page 527) and the oil level
(Page 514).
Checking the oil quality (Page 517).
Check the date of last oil change. If re‐
quired, change the oil (Page 514).
Check the bearing and replace if neces‐
sary.
Adjust the cooling air to the appropriate
temperature.
Call Technical Support.
Check the mounting position
(Page 527) and the oil level
(Page 514).
Checking the oil quality (Page 517).
Check the load against rated data (you
might need to correct the belt tension,
for example).
Check the circuitry/connection of the
brake. Check brake for wear and readjust
if necessary.
Replace flexible elements.
Call Technical Support.
Check the belt tension and replace belt if
necessary.
SINAMICS G115D Wall Mounted distributed drive
Operating Instructions, 07/2023, FW V4.7 SP14, A5E52808211A AA