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necessary, adjust the bowden cable
outer sheath at the engine support
bracket.
With the throttle valve lever on the full stop,
there must be a minimum of 3mm (0.125
in) clearance (bounce) between the face
plate and the throttle lever in the cockpit.
(7) Move the throttle control lever between IDLE
and FULL.
− Make sure the lever moves freely with no
restriction.
(8) Do items 5 and 6 again as necessary to get
the correct values.
(9) Do an inspection of the control connections
which you disconnected. If necessary for
your airworthiness authority, do a second
inspection of the controls.
(10) Install the ignition leads to the spark plugs.
Tighten the “B” nuts.
Torque to 12.4 Nm (110-120 in lbs).
(11) Connect the airplane battery. Refer to Chapter 24-31.
(12) Install the engine cowlings. Refer to Chapter 71-10.
(13) Do an engine test. Refer to the DA20-C1 Flight Manual.
DA20-C1 AMM
Engine Controls
Doc # DA201-C1
Rev. 10 76-00-00 Page 221
23 Jun 2004
B. Mixture Control Range Of Movement Test
Detail Steps/Work Items Key Items
WARNING: DO NOT STAND WITHIN THE DANGER AREA OF THE
PROPELLER. IF THE ENGINE STARTS, THE PROPELLER CAN
CAUSE DEATH OR INJURY TO PERSONS.
WARNING: YOU MUST MAKE SURE THAT THE ENGINE IS SAFE BEFORE
YOU DO WORK ON THE ENGINE CONTROLS. DISCONNECT THE
SPARK PLUG LEADS. MAKE SURE THAT :
- THE IGNITION SWITCH IS IN THE “OFF” POSITION.
- THE “P” LEADS ARE GROUNDED.
- THE THROTTLE IS SET TO “IDLE”.
- THE MIXTURE CONTROL IS SET TO “LEAN CUT-OFF”.
(1) Remove the engine cowlings. Refer to Chapter 71-10.
(2) Disconnect the airplane battery. Refer to Chapter 24-31.
(3) Make the engine safe:
− Disconnect the spark plug leads.
− Make sure that the ignition switch is in
the “OFF” position.
− Make sure the “P” leads are grounded.
− Set the throttle to IDLE.
Mixture control set to LEAN CUT-OFF.
(4) Remove the control knobs from these levers
at the center console:
− PARKING BRAKE.
− HEAT control ON OFF.
− HEAT distribution DEFROST FLOOR.
(5) Remove the 2 parts of the engine controls
face plate from the center console cover.
− Remove the four screws.
(6) Disconnect and remove the TRIM switch
from the face plate.
Disconnect the connector below the face
plate. Lever the TRIM switch clear.
(7) Remove the center console cover from the
center console:
− Remove the six screws from the two
sides of the center console cover.
Engine Controls
DA20-C1 AMM
Page 222
23 Jun 2004 76-00-00 Doc # DA201-C1
Rev. 10
Detail Steps/Work Items Key Items
(8) Move the mixture control lever between
RICH and LEAN CUT-OFF.
− Make sure the lever moves freely with no
restriction.
(9) Set the mixture control lever to RICH and
hold it in position.
For aircraft with a standard fuel pump:
− Make sure the mixture valve lever hits
the RICH stop at the mixture valve. If
necessary, adjust the bowden cable
outer sheath at the apron support
bracket.
For aircraft with an altitude compensating
fuel pump:
− Make sure the mixture valve lever hits
the RICH stop at the mixture valve. If
necessary, adjust the bowden cable
outer sheath at the throttle quadrant tab
With the mixture valve lever on the RICH
stop, the mixture lever in the cockpit must
contact the forward stop in the throttle
quadrant.
With the mixture valve lever on the RICH
stop, the mixture lever in the cockpit must
contact the forward stop in the throttle
quadrant.
(10) Set the mixture control lever to LEAN CUTOFF
and hold it in position.
For aircraft with a standard fuel pump:
− Make sure the mixture valve lever hits
the CUT-OFF stop at the mixture valve.
If necessary, adjust the bowden cable
outer sheath at the apron support
bracket.
For aircraft with an altitude compensating
fuel pump:
− Make sure the mixture valve lever hits
the RICH stop at the mixture valve. If
necessary, adjust the Bowden cable
outer sheath at the throttle quadrant tab.
With the mixture valve lever on the CUTOFF
stop, the mixture lever in the cockpit
must contact the aft stop in the throttle
quadrant.
With the mixture valve lever on the CUTOFF
stop, the mixture lever in the cockpit
must contact the aft stop in the throttle
quadrant.
(11) Move the mixture control lever between
　
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