11.2. Disconnection from the mains
If the device must be dismantled, e.g. for service purposes, it can be separated from the
mains without having to remove the wiring.
Flameproof enclosure, danger of explosion!
Risk of death or serious injury.
→
Before opening, ensure that there is no explosive gas and no voltage.
→
Handle cover and housing parts with care.
→
Joint surfaces must not be damaged or soiled in any way.
→
Do not jam cover during fitting.
Figure 30: Ex plug & socket connector KES
[1] Cover
[2] Screws for housing
[3] O-ring
[4] Frame (KES)
Removing the plug:
1. Loosen the screws [2].
2. Remove plug & socket connector.
➥
For plug & socket connectors of KES type, cover [1] and frame [4] remain assembled.
3. Seal open plug & socket connections, e.g. using AUMA protection covers and
parking frames.
Reinstalling the plug &
socket connector:
4. Clean sealing faces of housing and cover.
5. Preserve joint surfaces with an acid-free corrosion protection agent.
6. Check whether O-ring [3] is in good condition, replace if damaged.
7. Apply a thin film of non-acidic grease (e.g. petroleum jelly) to the O-ring and insert
it correctly.
8. Reinstall plug & socket connector and fasten screws evenly crosswise.
44
SAEx 07.2 – SAEx 16.2 / SAREx 07.2 – SAREx 16.2
Servicing and maintenance