DOCUMENT NUMBER:
L500-912.820 ISSUE JUL 20, 2016
AMENDMENT: 00
DATE: 
CHAPTERPAGE 34
MAINTENANCE MANUAL STEMME S12
No. Name of Control Airframe Position
11. Propeller Pitch
Switch on center console. The forward position is the TAKE-
OFF position. A green light located in the upper area of left
instrument panel indicates if propeller pitch (not switch)
is in T/O)-position.
12. Fuel Valve
Red handle on the rear console between the seat back
rests. Turning the handle into its horizontal position (fuel
valve CLOSED) cuts o the fuel supply for the engine.
NOTICE
Throttle positions for 115% and 100% can be selected by feel. The rst stop is the 100% throttle
position. To select 115% the throttle lever must be moved through a throttle gate to the left and
then pushed to the next stop.