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Servicing the external fan motor
● Perform an occasional visual inspection of the external fan motor and check it electrically
● Replace the permanently lubricated rolling bearing on the external fan motor after
9.1.14
Touch up any damaged paintwork
If the paint is damaged, it must be repaired in order to protect the unit against corrosion.
Note
Paint system
Contact the Service Center (Page 171) before you repair any paint damage. They will provide
you with more information about the correct paint system and methods of repairing paint
damage.
9.1.15
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
● If dust or humidity have infiltrated the terminal box, this should be cleaned and dried
● Check the insulators, connectors and cable connections in the terminal box.
● Replace any damaged components.
SIMOTICS FD 1LN1
Operating Instructions 01/2019
and mechanically every time the roller bearings are replaced.
40,000 operating hours or five years at the latest.
terminal connections.
(particularly the insulators).
Check all the seals and sealing surfaces and address the cause of the leakiness.
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
9.1 Inspection and maintenance
135
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