4| Compressor assembly
4.9 Operating mode of the lockable service connections
1
1
3
3
Pipe connection
Pipe connection
2
2
Fig. 17
Opening the shut-off valve:
a) Spindle1:turntotheleft(counter-clockwise)asfarasitwillgo.
—> Shut-off valve fully opened / service connection 2 closed.
Fig. 18
Openingtheserviceconnection(2):
b) Spindle1:Turn½-1rotationtotheright.
—> Service connection 2 opened / shut-off valve opened.
Connection 3 is provided for safety devices and is not lockable.
Afteractivatingthespindle,generallytthespindleprotectioncapagainandtightenwith14-16Nm.
This serves as a second sealing feature during operation.