Schmidt AS 990 - Page 57

Translation of Original Operating Instructions
Airport Sweeper / Airport Stand Cleaner
2017-02-02 57
Commissioning:
 Start the auxiliary engine.
 Roll out and connect (2) the spray hose (1).
 Set ball valve (3) to "spraying hose" function.
 Press button (4). (The engine speed increases
to approximately 1100 rpm.)
 Turn spray tube to the left: open
Shutting down:
 Turn spray tube to the right: close
 Press button (4).
 Set ball valve (5) to "Off".
 Open the spray tube briefly to reduce the water
pressure in the spray hose.
 Disconnect the hose and roll it up.
 Cut off the water connection with the cover (6).
TIP
After cleaning, always set the ball valve to "off";
otherwise debris hopper cleaning is active.
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