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5| Compressor assembly
5.9 Operating the shut-off valves
Before opening or closing the shut-off valve, release the valve spindle seal by approx. ¼ of a turn
counter-clockwise.
After activating the shut-off valve, re-tighten the adjustable valve spindle seal clockwise.
Fig. 27 Fig. 28
Valve spindle seal
release
tighten
Pipe connection
Pipe connection
5.10 Operating mode of the lockable service connections
Fig. 29
Opening the shut-off valve:
Spindle:turntotheleft(counter-clockwise)asfarasitwillgo.
—>Shut-offvalvecompletelyopened/serviceconnectionclosed.
The connection which cannot be shut off is intended for safety devices.
Fig. 30
Opening the service connection
Spindle:Turn½-1turntotherightclockwise.
—>Serviceconnectionopened/shut-offvalveopened.
The connection which cannot be shut off is intended for safety devices.
Service connection
closed
Connection
blocked
Spindle
Connection cannot
be shut off
Connection cannot
be shut off
Ser
vice connection
opened
Spindle
Connection
open
Compressor
Compressor
Afteractivatingthespindle,generallytthespindleprotectioncapagainandtightenwith14-16Nm.
This serves as a second sealing feature during operation.