LIMBACH L 2000 EA - Engine Test Run; Engine Preservation

Page: 37/48
Operating Manual L 2000
Edition: 01.03.2016
201.253.
905.000
8.20 Engine Test Run
Check of starting performance.
At normal conditions (temperature, maintenance condition) the engine starts easily. If
this is not the case check fuel supply and ignition system.
Caution:
Do not operate the starter a prolonged period of time (Risk of overheating).
Warming up
Run engine for approx. 2 min. between 1000 to 1200 min
-1
. Then increase speed to 1500 rpm
until the oil temperature gauge indicates 50 °C.
Temperatures and pressures
Refer to "Technical Data".
Check of throttle response.
Move power lever steadily to full throttle. Engine must show immediate response, engine
speed must increase steadily.
Engine performance check.
Move throttle lever to full-throttle stop. Engine has to reach the full-throttle static
speed (refer to flight and maintenance manual of aircraft manufacturer). Set variable pitch
propellers to Take-off pitch.
8.21 Engine Preservation
Engines that are take out of operation for more than 6 months shall be preserved.
Note:
At high humidity, it is recommended to close the exhaust muffler exit.
8.21.1 Compliance
Installed engine:
 Warm up engine and drain engine oil after engine shut-down.
 Clean oil screen.
 Clean engine thoroughly.
 In any case, corrosion protection has to be performed by using fresh engine oil.
 Charge 2.5 l of engine oil and run engine for approx. half a minute with increased idle speed.
 Remove air filter and spray 25 to 30 cm
3
of engine oil slowly into the carburetor(s) of the running
engine. Stop engine during spraying.
 Wet all carburetor hinges with engine oil.
 Close all openings to avoid entry of dirt or moisture.
 Spray engine surface with engine oil. Take care of not exposing rubber parts and eletrical connectors
to engine oil.
Caution:
After corrosion protection, the engine must not run any more as this would disable
corrosion protection.