Flight Manual STEMME S 10 Date of Issue Oct. 10, 1990 page: 26
Amendment No.: -- Date: --
LBA-approved
A4010013_08a-26/13.11.2015 14:34:00/14:34
4.5 Normal Operating Procedures and Recommended Airspeeds
4.5.1 Engine Starting, Warming-up and Taxying Procedures
Starting Up
• With cold engine: Choke "ON".
• Throttle in idling position (pulled).
• Propeller area free of persons and obstacles.
• Master switch "ON"
• Engine master switch "ON"
• Electrical fuel pump (right fuel tank) "ON". Pump noise O.K. (clicking with decreasing frequency if fuel
cock "OPEN")
• Operate starter with push button until propeller blades are folded out and turn regularly. Only then ignition
switch ON".
• As soon as engine fires, release starter switch. If engine has not fired after 10 seconds, repeat operation.
Caution: Switching on of ignition before folding out of the propeller blades results in unnecessary
loading of the propulsion system.
• Adjust engine revolutions to between 1,500 and 2,000 rpm (reduce choke until engine fires smoothly, then
choke "OFF").
• Check oil pressure (GREEN arc; minimum 0.07 p.s.i.).
Warning: If the lowest required engine oil pressure is not indicated within 10 seconds, stop engine
immediately!
• Check extinguishing of alternator charging light.
• If engine does not fire up after operating the starter five times, there is a possibility of too much fuel in the
cylinders.
In this case Choke "OFF". Throttle fully forward and operate starter. When propeller folds out, ignition switch
"ON" and operate starter until engine fires. Stop this procedure after 15 seconds the latest, wait one
minute and repeat start up attempt.
Should this method be without success, remove the sparking plugs to dry out.
Note: The construction of the propulsion system does not permit turning over of the engine by hand.
A warm engine is to be started without choke and with some throttle.
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