Figure 78: KL electrical connection
[1] Cover
[2] Screws for cover
[3] O-ring
[4] Screws (with gaskets) within connection frame
[5] Connection frame
[6] Grub screws within connection frame
Ignition of potentially explosive atmospheres caused by sparks.
Risk of death or serious injury.
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Before opening the flameproof enclosure, ensure absence of gas and voltage.
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Handle cover and housing parts with care.
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Joint surfaces must not be damaged or soiled in any way.
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Do not jam cover during fitting.
Removing the plug:
1. Loosen the screws [2].
2. Remove cover [1].
3. Remove grub screws [6] inside the connection frame.
4. Loosen screws [4] inside the connection frame.
5. Remove electrical connection.
Fitting the plug/socket
connector:
6. Clean sealing faces of plug/socket connector, cover and housing.
7. Preserve joint surfaces with an acid-free corrosion protection agent.
8. Check whether O-rings [3] are in good condition, replace if damaged.
9. Apply a thin film of non-acidic grease (e.g. petroleum jelly) to the O-rings and
insert them correctly.
10. Fit electrical connection (connection frame) and fasten screws [4] (with gaskets)
evenly crosswise.
11. Fasten grub screws [6] (tightening torque approx. 10 Nm).
Information: The flameproof enclosure is only guaranteed provided the grub
screws are fastened [6].
12. Fit cover [1] and fasten screws [2] evenly crosswise.
12.3. Maintenance
Manual operation
During maintenance, the mechanical parts of the handwheel activation, in particular
motor coupling and retaining spring, must be checked. Replace the parts in case of
visible wear.
Lubrication
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In the factory, the gear housing is filled with grease.
82
SAEx 07.2 – SAEx 16.2 / SAREx 07.2 – SAREx 16.2 Control unit: electronic (MWG)
Servicing and maintenance ACExC 01.2 Non-Intrusive Profinet
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