Regreasing (Optional); Cleaning - Siemens SIMOTICS SD Operating Instructions Manual

Maintenance
9.3 Maintenance
9.3.2

Regreasing (optional)

For machines with regreasing system, relubrication intervals, grease quantity and grease
grade are provided on the lubricant plate. Additional data can be taken from the main
machine rating plate.
Grade of grease for standard motors (IP55) UNIREX N3 - ESSO).
Note
It is not permissible to mix different types of grease.
Prolonged storage periods reduce the useful lifetime of the bearing grease. Check the
condition of the grease if the equipment has been in storage for more than 12 months. If the
grease is found to have lost oil content or to be contaminated, the machine must be
immediately relubricated before commissioning. For information on permanently-greased
bearings, please refer to the section titled Storage (Page 96).
Procedure
To relubricate the roller bearings, proceed as follows:
1. Clean the grease nipples at the drive end and non-drive end.
2. Press in the type and quantity of grease specified (see rating/lubricant plate data).
– Please observe the information on the rating and lubricant plates.
The bearing temperature rises sharply at first, then drops to the normal value again when the
excess grease is displaced out of the bearing.
9.3.3

Cleaning

Cleaning the greasing channels and used grease chambers
The used grease collects outside each bearing in the used grease chamber of the outer
bearing cap. When replacing bearings, remove the used grease.
Note
You have to separate the active parts of the bearings to replace the grease that is in the
greasing channel.
94
– Regreasing should be carried out when the motor is running (max. 3600 rpm).
Operating Instructions, 05/2014, 5 610 00000 02 000
Low-voltage motors