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AMM
Page 4
20 Sep 2007 31-10-00 Doc # 6.02.01
Rev. 5
2. Description
A. Instrument Panel
The Figures in Paragraph 1 show the instrument panels which are available for the DA 40 with the
Lycoming engine installed. The airplane has an aluminum alloy instrument panel. The panel has
cut-outs for instruments and switches. A large cut-out in the middle of the panel has the avionic
equipment. Brackets between the shelf and the avionic equipment rack make the installation rigid.
The bottom of the panel bends up at 87º to make a shelf. The shelf has mountings for electrical
equipment such as relays and multi-pin connectors. Each side of the shelf has a row of ground
terminals. Large cut-out areas in the shelf allow cooling air to move past the instruments and out
through holes in the instrument panel cover.
AIRCRAFT
DA 40 Series
AMM
Indicating Systems
Doc # 6.02.01
Rev. 5 31-10-00 Page 5
20 Sep 2007
Throttle
Throttle
Propeller
Propeller
Mixture
Mixture
Heat and Brake
Throttle Friction Adjuster
Parking
Brake
Tubular
spacers
Engine Controls Pivot
Brake/Heat
Controls Pivot
Top Cover Plate
Bottom Cover Plate
Floor
Panel
Distributor Valve
Control Cable
Heat Valve
Control Cable
% Figure 3: Engine Control Assembly in the Center Console
AIRCRAFT
Indicating Systems DA 40 Series
AMM
Page 6
20 Sep 2007 31-10-00 Doc # 6.02.01
Rev. 5
B. Engine Control Assembly
The engine control assembly in the center console has these controls:
) Throttle.
) Propeller.
) Mixture.
) Parking brake.
) Cabin Heat control lever.
) Distribution control lever for Cabin Air.
The 3 engine control levers are on one pivot shaft at the rear of the assembly. A knob on the right
side of the assembly adjusts throttle (mixture and propeller) friction. The parking brake and cabin
heat control levers are also on one shaft at the top front of the assembly. Friction discs, stators and
spring washers hold both groups of levers in position on the shafts.
The assembly has 2 aluminum-alloy side-plates. Four sheet-metal brackets hold the outer sheaths
of the control cables. A metal bracket at the front top attaches to the bottom of the instrument panel.
A metal bracket at the back attaches to the elevator trim mounting. Rivets attach all of the metal
brackets to the side plates.
Bolts hold 5 tubular spacers between the side plates. The spacers make fixed stops for the control
levers. Two of the spacers also hold one end of the friction stators for each group of levers.
Two bolts attach the engine control assembly to the bottom of the instrument panel. Bolts attach
the assembly to the side walls of the floor panel.
AIRCRAFT
DA 40 Series
AMM
Indicating Systems
Doc # 6.02.01
Rev. 5 31-10-00 Page 101
20 Sep 2007
Trouble-Shooting
1. General
Trouble Possible Cause Repair
Engine control levers do not
stay in the set position.
Too much wear in the friction
washers.
Friction tension too low.
Replace the friction washers.
Adjust the friction.
Parking brake or cabin heat
control levers do not stay in the
set position.
Friction tension too low.
Too much wear in the friction
washers.
Adjust the friction.
Replace the friction washers.
AIRCRAFT
Indicating Systems DA 40 Series
AMM
Page 102
20 Sep 2007 31-10-00 Doc # 6.02.01
Rev. 5
Intentionally left blank
AIRCRAFT
DA 40 Series
AMM
Indicating Systems
Doc # 6.02.01
Rev. 5 31-10-00 Page 201
20 Sep 2007
Maintenance Practices
1. General
These maintenance practices tell you how to remove/install the engine control assembly. See the
related Chapter for data about indicators in other systems.
2. Remove/Install the Central Control Panels
A. Remove the Engine Control Assembly
Detail Steps/Work Items Key Items/References
(1) Remove the knob from the fuel selector valve:
S Remove the cross-head screw from the
center of the control-knob and pull the knob
up and off the fuel selector valve.
S Remove the mounting plate.
(2) Remove the engine control assembly rear cover
plate:
S Remove the 4 cross-head screws which
attach the cover plate.
S Lift the rear of the cover plate a small amount
and pull the cover plate backwards and clear
of the control assembly.
(3) Remove the front cover plate:
S Remove the 2 hex-headed bolts which attach
the cover plate to the control assembly.
　
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