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4| Compressor assembly
4.7
Operating the shut-off valves
Before opening or closing the shut-off valve, release the valve spindle seal by approx.
counter-clockwise.
After activating the shut-off valve, re-tighten the adjustable valve spindle seal clockwise.
Fig. 8
4.8
Operating mode of the lockable service connections
US
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.
Opening the service connection
Spindle: Turn
—> Service connection opened / shut-off valve opened.
After activating the spindle, generally fit the spindle protection cap again and tighten with 14-16 Nm
(10-12 lb-ft). This serves as a second sealing feature during operation.
12
Valve spindle seal
Service connection
closed
Spindle
Connection
blocked
Service connection
opened
Spindle
Connection
open
1 / 2
- 1 turn clockwise.
Release
Fig. 9
Pipe connection
Compressor
Pipe connection
Compressor
1 / 4
of a turn
Tighten
Fig. 10
Fig. 11
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