Maintenance and servicing
6
• Select maintenance cycles so that problems can be recognized in good time. Check the
following:
– The device for visible damage
– That the permitted temperatures are not exceeded
– That the cables are securely connected,
– Cable and conductor glands for damage
– Breather glands / venting nozzles for damage
– Enclosure gaskets for cracks and damage
– Breather glands / venting nozzles for dirty or clogged openings
– Bonding of seal on the enclosure cover and at the bonding positions
– Surface of seal for damage
• If the seal is damaged, replace the complete cover if necessary.
• If there is damage to the enclosure, there is a risk that the degree of protection is no longer
valid. In some cases, this might necessitate replacement of the enclosure.
• In case of damage to cable and conductor entries, replacement is only permissible with
original parts.
• In case of damage to breather glands / venting nozzles, replacement is only permissible with
original parts.
• Regularly inspect the breather glands/venting nozzles and the cable and conductor entries
for secure t and tightness once a year. Check the tightening torques.
If necessary, re-tighten the glands to the torques specied by the manufacturer. For
information on the torques, refer to the respective manufacturer documentation.
• Functional checks must be carried out in accordance with the EN 60079-17 guidelines.
DANGER
Explosion hazard
In some cases, ignitable sparks or unacceptable surface temperatures may be generated
during connection.
- Never install under explosive conditions!
Use a non-magnetic screwdriver when connecting the cables!
Distributed I/O device 6DL2804-1xxxx & 6DL2804-2xxxx
Hardware Installation Manual, 11/2023, A5E42025214-AC 27
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