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• Replace permanently lubricated rolling bearings in the external fan motor as
specified in the operating instructions for the external fan motor.
7.1.8.7
Maintaining terminal box "Ex d"
Requirement
The machine is de-energized.
Check 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.
• Line entries inside the terminal box are part of the regular inspection in
accordance with IEC/EN 60079-17.
• Replace the damaged components if necessary.
!
Short-circuit hazard
Short-circuits can occur as a result of damaged components that can lead to
death, serious injury or material damage.
Replace damaged components.
7.1.8.8
Repainting
!
Explosion hazard caused by incorrect painting
The paint coat can become electrostatically charged where there is a thick
coat. Electrostatic discharges can occur. There is a risk of explosion if
potentially explosive mixtures are also present at this moment. This can result
in death, serious injury or material damage.
You must comply with one of the following requirements when you repaint
painted surfaces:
WARNING
WARNING
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