AEROPRAKT-32 Pilot Operating Handbook
A32-240-POH
37
7.7.5 Engine controls
Fig. 9. Engine RPM controls
The engine control system includes engine RPM (throttle) controls, engine starting fuel
mixture (choke) controls, carburetor heating controls (with air intake box installed). The
engine controls are located on the central console and are accessible from both right and
left side pilot seat.
The engine RPM control (
) is achieved using the throttle lever (1) connected with the
cables to the throttle control arms of the right (2) and left (3) carburetor. The cables are
passed through the flexible sheaths
– the right (4) and the left (5) one. The throttle lever
friction force can be adjusted on the ground by tightening the bolt (6) or in flight
– using the
friction force adjusting lever (
7
).
Rearmost throttle lever position corresponds to MIN engine RPM, the foremost position
– to
MAX engine RPM. Pulling the friction force adjusting lever back increases the throttle lever
friction, pushing it forward
– reduces.
Engine pre-start mixture control (
) is achieved using the choke control lever (1),
connected with cables to the choke control arms of the right (3) and left (4) carburetor. The
cables are passed through the flexible sheaths
– the right (5) and the left (6) one.
Rearmost choke lever position corresponds to OFF, the foremost position
– to ON.
Carburetor heating control (
) is achieved by means of controlling the position of the
shutter (2) in the air intake box (1) covering the air filters of the carburetors. The control lever
(3) is connected to the shutter with forward (4) and rear (5) push-pull cables and clip (6).
The cables are enclosed in forward sheath (7, fixed to air intake box) and rear sheath (8,
fixed to the instrument panel) connected to each other with a clamp (9).
