en – Translation of the Original Instructions
e-SV series – Additional Installation, Operation and Maintenance Instructions 33
Settling of the mechanical seal
The pumped liquid lubricates the seal faces of the mechanical seal; under normal conditions, a
small amount of liquid may leak out. When the unit is run for the first time, or immediately after
the seal is replaced, more liquid may temporarily leak out. To help the seal settle and to
reduce leaking:
1. Close and open the on-off valve on the discharge side two or three times with the unit
running.
2. Stop and start the unit two or three times.
5.5 Stopping
1. Shut the on-off valve located on the discharge line.
2. Stop the pump unit and check that the motor slows down gradually.
3. Gradually re-open the on/off valve and check that the motor remains still.
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