OPERATION No MA. 142-O SD : (I
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Op. MA. 142-O SD 1
f SIi’III)ISH \IAKKl:‘/ ,‘1,,,( 1.1’) ,
CHECKING THE SAFETY DEVICE FOR THE CHOKE i ( \ ?XO ,
2
1. Electrical components :
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a
Switch on the ignition
4
Pull the choke control knob the CC WEBER a) electto-valve ( 1) must be heard. If not use a test lamp to check
its electricity supply and its earthing. If the electro-valve is not supplied. check its energizinq and its
2
earthinq via the choke control.
5
;
E
; 2.P
neurotic components :
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“7
Disconnect from the air-supply valve ( 3 ) the pipe from the valve to the exhaust manifold ( 2 j
Plug the tube so as to avoid the exhaust pressure deteriorating the end of the tube and the valve
Use the starter to rotate the engine.
In this position the air-pump must not supply air through the opening in the air-supply valve previously
disconnecied.
CHECKING THE AIR INJECTION
Push bock the choke
In this position the air pump must supply air throuqh the previously disconnected opening in the air-supply
valve.
Accelerate the enqine. and suddenly decelerate
The injection of air through the openinq must stop for a short while.
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