Operation
7
7.1 Normal operation of the coupling
The coupling runs quietly and shock-free during normal operation.
7.2 Faults - causes and rectification
A form of behaviour which is different to normal operation is classed as a fault and has to be
rectified immediately.
Look out specifically for the following faults during coupling operation:
● Unusual coupling noise
● Sudden occurrence of shocks
7.2.1 Procedure in the event of malfunctions
DANGER
Danger due to bursting of the coupling
There is a risk of fatal injury from flying fragments. Bursting of the coupling can lead to an
explosion in potentially explosive atmospheres.
● Switch off the unit at once if any malfunctions occur.
● Note during the maintenance work the possible causes of faults and the notes on rectifying
them.
Proceed as described below if there is a malfunction of the coupling during operation:
1. De-energise the drive immediately.
2. Initiate the required action for repair, taking into consideration the applicable safety
regulations.
If you cannot determine the cause or if you cannot carry out repair work with your own means,
request one of our customer service technicians.
7.2.2 Identifying the fault cause
Faults occur frequently due to application errors or they occur due to operational circumstances
such as wear of wearing parts or changes to the system.
N-EUPEX / N-EUPEX DS 3100en
Operating Instructions 10/2017 37
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