Mains Disconnection With Kes Electrical Connection; Maintenance - AUMA SQEx 05.2 Operation Instructions Manual

13.2.2 Mains disconnection with KES electrical connection

WARNING
Removing the plug 1. Loosen the screws [2].
Fitting the plug 4. Clean sealing faces of plug/socket connector and housing.

13.3 Maintenance

Maintenance intervals In compliance with EN 60079-17, Ex certified products either require repeated testing
Manual operation During maintenance, the mechanical parts of the handwheel activation, in particular
Lubrication •
Figure 47: KES Ex e electrical connection
[1]
[2]
[3]
[1] Cover
[3] O-ring
Ignition of potentially explosive atmospheres caused by sparks.
Risk of death or serious injury
à Before opening the flameproof enclosure, ensure absence of gas and voltage.
à Handle cover and housing parts with care.
à Flameproof joints must neither be damaged nor soiled in any way.
à Do not jam cover during fitting.
2. Remove electrical connection.
ð Cover [1] and plug-in type frame [4] or connection frame [5] remain together.
3. Seal open plug/socket connection, e.g. using AUMA protection cover and parking
frame.
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. Slightly grease the O-ring with acid-free grease (e.g. petroleum jelly) and insert
them correctly.
8. Replace electrical connection and fasten screws evenly crosswise.
at an interval of 3 years or continuous monitoring by trained personnel.
motor coupling, must be checked. Replace the parts in case of visible wear.
In the factory, the gear housing is filled with grease.
• Additional lubrication of the gear housing is not required during operation.
• Grease change is performed during maintenance
– Generally after 4 to 6 years for modulating duty.
[4]
[2] Screws for housing
[4] Connection frame
Servicing and maintenance
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