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09790-02.2018-DGbFEIRu

4| Compressor assembly

Fig. 16

Fig. 17

Valve spindle seal

Release

Tighten

Pipe connection

4.7 Operating mode of the lockable service connections

Fig. 18

Opening the shut-off valve:

Spindle: turn to the left (counter-clockwise) as far as it will go.

—> Shut-off valve completely opened / service connection closed.

Fig. 19

Opening the service connection

Spindle: Turn 1/2 - 1 turn clockwise.

—> Service connection opened / shut-off valve opened.

Connection

blocked

Spindle

Connection

open

Compressor

Service connec-

tion closed

Service connec-

tion opened

4.6 Operating the shut-off valves

Before opening or closing the shut-off valve, release the valve spindle seal by approx. 1/4 of a

turn counter-clockwise.

After activating the shut-off valve, re-tighten the adjustable valve spindle seal clockwise.

Afteractivatingthespindle,generallytthespindleprotectioncapagainandtightenwith14-16Nm.

This serves as a second sealing feature during operation.

GEA Bock HG8 Series User Manual

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