relubrication. This is indicated by the fact that during relubrication, oil or grease escapes at the
bearing cover.
● To remove the spent grease, loosen the outer bearing cap.
NOTICE
Removing spent grease
If the spent grease is not removed, then the roller bearings become too hot and can seize
up as the grease distribution mechanism is disturbed.
WARNING
Working on the locating bearing
If the motor is in a vertical position, the rotor can fall out while work is being performed on
the locating bearing. This can result in death, serious injury or material damage.
Support or reduce the load on the rotor when carrying out work with the machine in a
vertical position.
9.2.9 Maintaining terminal boxes
Requirement
The machine is de-energized.
Checking the terminal box
● Terminal boxes must be regularly checked for tightness, undamaged insulation, and tight
terminal connections.
● If dust or humidity have infiltrated the terminal box, this should be cleaned and dried
(particularly the insulators).
Check all the seals and sealing surfaces and address the cause of the leakiness.
● Check the insulators, connectors and cable connections in the terminal box.
● Replace any damaged components.
WARNING
Short-circuit hazard
Short-circuits can occur as a result of damaged components. This can result in death,
serious injury or material damage.
Replace damaged components.
Maintenance
9.2 Inspection and maintenance
SIMOTICS HV C 1NA14544WA600AG0-Z
Operating Instructions 06/2018 83
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