contd ••••.••••
4
replacing the flywheel retaining nut.
BE SURE TO: Lubricate the LANDING WHEELS, by squtr-ttnç ott
directly tnto the axle tubes, and the TAIL WHEEL,
frequently. All moving parts of the control system should
be kept clean and l ightly otted ,
ADJUSTMENTS FOR DIAPHRAGM CARBURETTOR
The following procedure must be adopted with a new atr-cr-art ,
Fi 11fuel tank with prescribed mix.
Be sure that the ignition cut-out switch
t
s tn the OFF position (DOWN).
Loosen the screw retaining the plastic filler bowl on the underside of
the car-buretto r •
Turn on the fuel tap to allow the fuel to run down the fuel line and
drain from the base of the car-bur-ettor-,
When air bubbles in the fuel line have been eradicated , ttghten up the
fuel bowl screw.
Remove spark plug from engine.
Open the throttle full; spin the propeller with the palm of one hand
over- the inlet of the carburettor untH the carburettor floods. This
will ensure that the carburettor
t
s pr-trned,
Spin the propeller over several times with the inlet open to
discharge excess fuel From the engine.
Replace the spark plug and start the engine, as per the Instructions.
WHEN VOU RECEIVE YOUR AIRCRAFT, THE ENGINE HAS BEEN RUN
UP AND THE CARBURETTOR ADJUSTED.
However, there are three adjustments on the carburettor with which the
Owner should be Familiar:-
1• The idle speed regulating screw.
2. The idle adjustment screw, marked "L".
3. The main adjustment screw, marked "H".
The idle speed regulattng screw should be screwed inwards to increase the
engine revolutions at idle.
The idle adjustment screw should be set at turns anU-clockwise.
The main adjustment screw should be set at not less than 1-1/4 turns
anti-clockwise.
WHEN MAKING SUBSEQUENT ADJUSTMENTS, IF NECESSARY, DO
NOT FORCE THE ADJUSTMENT SCREWS "L" AND "H" INTO THEIR
SEATS.
EXAMPLE: To adjust main adjustment screw "H", turn the screw
clockwise unttl
tt
bears on
it
s seat; then turn the screw 1-1/2 turns
anti-clockwise.
Repeated UNNECESSARY ac.ju.strner-t.sto the Carburettor COULD RESUL T
lN DAMA GE to the NEEDLE ADJUSTMENT SEATS.
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