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10.4.16 Maintenance of the switching cabinet
Warning!
Contact with live components is prohibited.
► Disconnect the switching cabinet from electricity before starting mainte-
nance!
Terminal screws must be checked for tightness and if necessary tightened at reg-
ular intervals (every 5000 operating hours or at least once per year). Check the
contactor contacts for burnup.
10.4.17 Checking the earthing connections
Check the function of the earthing connections frequently (see the general
assembly drawing and the indications on the product).
Only a specialist company must be commissioned to carry out such checks.
10.4.18 Insulation
Check the insulation (if present) on components, tanks and pipes for damage.
Damaged insulation must be replaced. The insulation thickness should be selec-
ted in accordance with the temperature and humidity at the point of installation.
Details on the insulation are included in the P+I diagram.
Caution!
No screw connections must be used under the insulation if pipes are insula-
ted.
► It must be possible to remove the insulation and the pipes must prefera-
bly be welded.
10.4.19 Checking the tightening torques at the adjusting elements.
The tightening torques vary depending on the strength and size of the screw
used. The values for tightening torques are to be taken from the applicable DIN,
unless otherwise specified.
Notice
The tightening torques for the adjusting elements should be obtained from
the data sheet.
► The data sheet forms part of the product documentation.
Maintenance
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