Rotax 447 UL SCDI, Руководство по установке

Страница: 44 / 68

INSTALLATION MANUAL
AIRCRAFT ENGINES
page 16 - 2
Initial issue, May 01/99
Effectivity: 447 UL SCDI, 503 UL DCDI, 582 UL DCDI /mod. 99
d00326
16.1) Carburetor air intake
The carburetor air intake must be protected against the ingestion of water,
dirt and foreign material. Use a Rotax approved air filter. Avoid paper, foam
and synthetic material types that absorb water.
Equal air pressure conditions must prevail in the vicinity of the carburetor
air intake and the carburetor float chamber vent pipes (i.e. the pressure
must not be influenced by the propeller air stream).
If necessary, the carburetor intake should be shielded against effects of
the slipstream by a sheetmetal shield or air intake box, and the carburetor
vent pipes should be routed to a calm air zone or connected to a vent
chamber (see sketch below).
Engines supplied with an intake silencer must not be operated without it
unless the carburetor calibration has been altered. Consult the engine
supplier or manufacturer (in writing)for details.The correct carburetor
calibration is also described in the parts list.
If the aircraft is to be operated in climatic conditions where carburetor icing
is likely to occur, a heating system must be fitted.
No modifications should be made to the carburetor and air intake system
without consulting the engine manufacturer (in writing).
Ausgleichbohrungen für Vergaser-Entlüftung
compensation bores for carburetor venting
02816
fig. 31