20. Electrical charging - check function
21. Radio and keys function - Check
22. Trim – Check function, return to neutral position
23. Flaps – Check free motion, retract
Electric fuel pump may not be switched “ON” with empty fuel tanks and closed fuel cock!
Max. time perion for engine start up is 10 seconds. It is possible to repeat starting up process with 2 min delay for
cooling of starting gear.
Oil pressure must rise within 10 seconds after start. When oil pressure is steady above 2 bars, it is possible to increase
engine speed!!!
4.4. Engine warm up and engine check
1. Control stick - pull fy to back position
2. Rudder pedals - set to neutral position
3. Engine speed - 2000 rpm and let run about 2 min., then warm up engine at 2500 rpm until oil temperature
reaches 50 C (120°F). Check temperatures and pressures.
4. Ignition test: Check alternately A and B magnetos with engine speed 4000 rpm; engine speed should not
decrease more than 300 rpm with one ignition circuit OFF. Dierence between A and B magneto “OFF” should
not exceed 115 rpm. Repeat 2 or 3 times
5. Short f throttle ground test - smoothly increase engine speed to maximum, hold approximately 5 sec.
6. Throttle - CLOSE
After engine waeming up let the engine cool at idling engine speed.
Do not carry out the engine check and warmin up the engine on dusty terrain (there is danger of propeller or engine
damage) !!!
- It is necessary for the pilot to be familiar with the instructions given in the engine Operator´s Manual
- Before starting the engine the aircraft must:
- be pointing into a headwind
- have the wheels xed by using chocks or the parking brake
- It is necessary to have an extinguisher ready near the aircraft in case of re. For this reason one more person, familiar with operating the
extinguisher, should be nearby.
- The engine must not be started, until the pilot is seated in the cockpit!
- Do NOT get into or out of the cockpit, while the engine is running!
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