Leser 330 Instructions De Service page 27

Operation
Switching Change-over Valve
Procedure for single or inlet side combination
1. Clean the actuator assembly.
2. Fully open the optional locking device of the actuator assembly.
3. Turn the handwheel to move the disc to the opposite side. Stop turning the
handwheel when there is resistance.
4. Adjust the handwheel by hand to seal the Change-over Valve.
5. Release the pressure/medium from the blocked elbow.
»
The Change-over Valve is switched.
For two-side combinations:
1. As above.
2. Turn first handwheel (e.g. at inlet side Change-over Valve) to move both
discs to the opposite sealing position. Stop turning the handwheel when
there is some resistance.
3. Adjust first handwheel by hand (at inlet side).
4. Adjust second handwheel (outlet side Change-over Valve) by hand to seal
the Change-over Valve.
5. See item 5. above
The disc can now be returned to its initial position.
EN
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