Maintenance4325−1/A1
Winterthur Gas & Diesel Ltd.
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7) Use the handwheel (25, Fig. 5) to move the shut-off valve to the position AUTOMAT.
Make sure that the lever (34) engages with the groove in the spindle.
8) Make sure that no air flows from the bore of the screw plug (27). When no air flows,
the automatic function of the shut-off valves operates correctly.
6.3 Automatic Mode
1) Make sure that the shut-off valve is in the position AUTOMAT.
2) Slowly loosen the screw plug (27). Make sure that no air flows out.
Note: When you do the step below, air will flow through the pipe. This activates
the control valve (19, Fig. 2), which shows that the valve body (18) and
valve (12) operate.
3) Open the ball valve 35−8353_E0_2 to activate the control valve (19). The shut-off
valve opens automatically.
4) Make sure that air flows from the bore of the screw plug (27, Fig. 5).
5) Close the ball valve 35−8353_E0_2.
6) Make sure that no air flows from the bore of the screw plug (27).
7. Completion
1) Use the handwheel to move the shut-off valve to the position CLOSED.
2) Install the screw plug (27).
3) Connect the pipes (2, 35) to the shut-off valve.
2015
Shut-off Valve for Starting Air: Cleaning and Function Check
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