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Throttle Lever
Pivot Shaft
Stator Plates
Mixture Lever
Mixture Lock-out
Toothed Segment
Spring Washers Plastic Washers
Spacers
Stators
THROTTLE FRICTION
Figure 1: Engine Controls in the Cockpit
AIRCRAFT
DA 40 Series
AMM
Engine Controls
Doc # 6.02.01
Rev. 5 76-00-00 Page 3
20 Sep 2007
2. Description and Operation
Figure 1 shows the engine control assembly in the cockpit. Figures 2 and 3 show the details of each
control. An engine control assembly in the center console holds the throttle, mixture and propeller
control levers. The engine control assembly has a control lever friction-adjuster. Tubular spacers in
the control assembly make the stops for the control levers.
A. Friction Adjuster
The friction adjuster adjusts the force necessary to move the control levers in the engine control
assembly. The friction adjuster control knob is on the right side of the center console. The control
levers attach to a pivot shaft in the engine control assembly. The pivot shaft also has stator plates,
plastic washers and spacers. The other end of the stator plates attach to the control assembly with
a bolt. The friction between the levers, plastic washers and stator plates increases when the friction
adjuster control knob is tightened and decreases when the knob is released. Spring washers keep
the friction adjuster control knob setting.
AIRCRAFT
Engine Controls DA 40 Series
AMM
Page 4
20 Sep 2007 76-00-00 Doc # 6.02.01
Rev. 5
Throttle Cable
Split Bush
Pop Rivet
Split Shield
Throttle
Cable
Throttle Lever
Nut
Nut
Washer
Bolt
Front Adjustment Nut
for Outer Sheath
Rear Adjustment Nut
for Outer Sheath
Knob
Allen Bolt
Throttle Cable
Front Adjustment Nut
for Outer Sheath
Rear Adjustment Nut
for Outer Sheath
RH SIDE OF FUEL INJECTOR ON THE ENGINE
Nut Washer Bolt
Lock-nut
COCKPIT CONTROL
FIREWALL
FEED-THROUGH
Figure 2: Throttle Control Installation
AIRCRAFT
DA 40 Series
AMM
Engine Controls
Doc # 6.02.01
Rev. 5 76-00-00 Page 5
20 Sep 2007
B. Throttle
Figure 2 shows the throttle control installation.
The throttle control lever sets the position of the throttle lever on the fuel injector. Move the throttle
control lever fully forward to open the throttle on the injector and move it rearward to close the
throttle on the injector. The lever on the injector touches its stop before the control lever in the
cockpit touches the cockpit stop. The cockpit stops prevent the pilot from putting too much load on
the control system.
A Bowden cable connects between the throttle control lever in the cockpit and the fuel injector at
the engine. The Bowden cable eye end attaches to the throttle lever with a bolt. The outer sheath
of the Bowden cable has a threaded end fitting. Two nuts attach the end fitting to a bracket
attached to the sides of the engine control assembly.
The Bowden cable goes from the engine control assembly, up behind the instrument panel and
through the firewall to the engine bay. A feed-thru fitting holds the cable in position at the firewall.
A fire resistant compound seals the Bowden cable where it goes through the firewall.
From the firewall the Bowden cable goes down the right side of the engine and then under the
engine to the fuel injector. The outer sheath of the Bowden cable attaches to a bracket on the
bottom of the engine with two nuts. If you adjust these two nuts you adjust the range of movement
of the throttle control lever. The control rod eye end attaches to the throttle lever at the injector with
a nut, bolt and two washers. The eye end is adjustable. You can use it to set the correct range of
movement of the throttle valve.
AIRCRAFT
Engine Controls DA 40 Series
AMM
Page 6
20 Sep 2007 76-00-00 Doc # 6.02.01
Rev. 5
Bolt
Front Adjustment Nut
for Outer Sheath
Top Adjustment Nut
for Outer Sheath
Rear Adjustment Nut
for Outer Sheath
Bottom Adjustment Nut
for Outer Sheath
LH SIDE OF FUEL INJECTOR ON THE ENGINE
Washer
Nut
Lock-nut
COCKPIT CONTROL
FIREWALL FEED-THROUGH
Knob
Spring
Lock-out Lever
Bolt
Spacer
Plate
Washer
Nut
Swivel Fitting
Toothed Rack
Mixture Cable
Mixture Cable
Long Bolt
End Fitting
Spacer
Pop Rivet
Split Shield
Split Bush
Mixture Cable
Figure 3: Mixture Control Installation
AIRCRAFT
DA 40 Series
中国航空网 www.aero.cn
航空翻译 www.aviation.cn
本文链接地址：
钻石40系列AMM 3(72)
