Removing Spent Grease - Siemens SIMOTICS HV C Operating And Installation Instructions

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Filling with oil for the first time

Esso Unirex N3

Shell Gadus S3 T100 2

Observe the following when changing over to an alternative type of grease that is permitted according

to the table:

Bearings with permanent lubrication:

● Completely remove the old grease from the bearing before regreasing it.

● Fill roller bearings completely with grease and cavities in the bearing cover only up to one

Bearings with regreasing:

If complete replacement of grease and cleaning of the bearing is not possible, keep the

operating time to a minimum when different greases are mixed. To do this, thoroughly grease

the bearing when the machine is running with about twice the amount of grease until spent

grease has been removed from the greasing ducts. Then regrease 4x at intervals of ¼ of the

normal greasing interval. During this time, very carefully monitor the bearing locations involved.

Then resume the normal greasing intervals.

NOTICE

Damage due to mixing grease types

If you mix greases and oils with different soap or oil bases, then the lubricating properties

may no longer be guaranteed.

Mixing low-temperature grease with normal temperature grease can cause lumps to form in

the lubricant. The consequence can be damage to the roller bearings due to overheating.

Never mix greases that have different thickening agents and different base oils.

9.3.7