Siemens SIMOTICS S-1FG1 Operating Instructions Manual page 152

Service and maintenance
9.2 Inspection and maintenance
Procedure
1. After the oil has been drained, wipe the gearbox clean of any remaining mineral oil using
a lint-free cloth.
2. Unscrew the vent plug.
Figure 9-6
3. Fill the gearbox completely with a flushing oil, using a filter (filter mesh max. 25 μm).
For the flushing oil, use the new oil or one that is compatible with the new oil and is less
expensive.
4. Operate the gearbox for 15 to 30 minutes under a low load.
5. Place a suitable and sufficiently large receptacle underneath the oil drain plug.
6. Remove the oil drain plug.
Drain all the oil into the receptacle.
Figure 9-7
7. After flushing, immediately seal the gearbox using the sealing element.
8. Repeat this step for the second flushing.
You have now flushed the gearbox twice and can pour in the new oil.
❒
150
Identifying marking of vent plug
Identifying marking for oil drain plug
SIMOTICS S-1FG1 servo geared motor
Operating Instructions, 07/2019, A5E47360747B AA