Rotax 912 Series Maintenance Manual page 43

Effectivity: 912 Series
AIRCRAFT ENGINES
MAINTENANCE MANUAL II
CAUTION:
— Water and dirt in the fuel may cause engine failure and performance
drop.
— Leaks in the fuel system may cause performance drop and bad idling
of the engine
— Unsuitable routing of fuel tubes may cause engine failure.
— After maintenance work the fuel system has to be checked for leaks.
— Always use clean and non-translucent, safety approved fuel containers.
At refuelling use filter funnel. Do not smoke, do not allow open flames
or sparks in the vicinity.
— Never refuel with engine running.
— Do not refill tank brimfull, allow for expansion of the fuel.
— Remove split fuel immediately, dispose of it respecting environmental
regulations.
— Gasoline is highly inflammable and under certain conditions explosive.
Handling of fuel in well ventilated places only.
— Faultless function of the carburetors cannot be warranted if the fuel
pressure is below 0,15 bar (2,2 psi) or over 0,4 bar (5,8 psi). If the
required fuel pressure is not achieved, use of an electric backing pump
is necessary.
— Between fuel tank and fuel pump a suitable fuel filter of mesh size 0,1
mm (.004 in) has to be placed. Do not use a paper filter.
— Choose fuel lines respecting the national directives for aviation. A
minimum diameter of 5 mm (.2 in.) should be respected.
— The tank must be provided with a fuel cock (with filter) to cut off fuel
supply at any time.
— The float needle valve cannot retain the fuel pressure over a longer
period or during transport of the aircraft.
— If problems with fuel supply are encountered and cannot be resolved,
contact a ROTAX
®
authorized Distributor or Service Center.
page 43
Initial issue, Jan. 01/2002