11/19/02
09C-01
S-7S CARBURETOR HEAT
DESCRIPTION OF DESIGN
1.
Each one of the two carburetors of the Rotax 912ULS engine has a
separate pre-heating system consisting of a heat exchanger, heat control
unit and connecting duct hose. One control knob operates both systems.
2.
A heat exchanger is mounted to both sides of the exhaust muffler.
3.
The instrument panel mounted control knob opens or closes the valves in
both heat control units with a simple mixer simultaneously. The position of
the valve determines if the engine runs on “cool” air coming through the air
filter or on “hot” air coming from the heat exchanger.
ADJUSTMENT
4.
Initial and re-adjustment of valve position is possible with cable stops on
each unit.
5.
The full open and full closed position must be verified during initial
installation and later maintenance by removing the air filter and looking in
the unit from the top.
6.
A spring mounted to each control unit supports the closing of the heat
control valve and assures a fully closed valve when carburetor heat “off “is
selected and therefore cool air supply and maximum engine performance.
7. Refer
to
FIGURE 09C-07
for further details.
8.
A cable friction block on the main control cable allows for adjustment of
friction to support the “On” position of the heat control knob. Refer to
FIGURE 09-11
.
Summary of Contents for S-7S COURIER
Page 26: ...RIVETS CROSS REFERENCE LIST...
Page 28: ...1 T E 0703 TI ON 1 9 1 I I 8 T d 3 d d 0 3 OE O N t Z...
Page 44: ...09 01 2014 01E 02 FINAL INSTALLATION For final installation refer to RUDDER PEDAL INSTALLATION...
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