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ON and hold it in position:
S Make sure that the alternate air control valve
is in the fully open position and that the 2
rows of holes in the valve align.
AIRCRAFT
Power Plant DA 40 Series
AMM
Detail Steps/Work Items Key Items/References
Page 210
20 Sep 2007 71-60-00 Doc # 6.02.01
Rev. 5
(8) If the adjustment of the control is not correct then
you must adjust the 2 adjusting nuts at the
alternate air control lever in the cockpit.
(9) Do items 5 - 8 again as necessary to get the
correct settings.
(10) Do an inspection of the control connections which
you disconnected. If necessary for your
airworthiness authority, do a second inspection of
the controls.
(11) Install the cables to the spark plugs. Torque to 12.4 - 13.6 Nm (110 - 120
in.lb).
(12) Connect the airplane battery. Refer to Section 24-31.
(13) Install the engine cowlings. Refer to Section 71-10.
(14) Do an engine run-up. Refer to the DA 40 Airplane Flight
Manual.
AIRCRAFT
DA 40 Series
AMM
Power Plant
Doc # 6.02.01
Rev. 5 71-61-00 Page 1
20 Sep 2007
Section 71-61
Air Intakes - TAE 125 Diesel Engine
1. General
An air filter housing, air filter and alternate air valve assembly make the engine air intake system for the
DA 40 airplane. The engine bottom cowling has a molded air intake duct and a flexible seal attached
to the air filter housing. Figure 1 shows the engine air filter and alternate air valve.
2. Description
The air intake has 3 main parts:
) Alternate air valve assembly.
) Air filter housing.
) Air filter.
A. Alternate Air Valve Assembly
Refer to Figure 1. The alternate air valve is attached to the top face of the air filter housing. The air
filter attaches to the bottom of the alternate air valve. The alternate air valve also has an inlet direct
from the engine compartment. A flap in the valve can select either filtered air or warm, unfiltered air.
B. Air Filter Housing
The air filter housing is made of sheet aluminum. It has a flexible seal which makes a seal between
the air intake assembly and the engine bottom cowling. 2 bolts attach the air filter housing to the
engine mount.
C. Air Filter
Refer to Figure 1. The air filter is a K&N RB-0700 or RD-0700 high-flow air filter. The air filter locates
on the air filter housing, on the right of the engine compartment, just forward of the firewall. It is held
to the bottom of an alternate air valve by a worm-drive clamp.
AIRCRAFT
Power Plant DA 40 Series
AMM
Page 2
20 Sep 2007 71-61-00 Doc # 6.02.01
Rev. 5
Alternate Air Inlet
Air Outlet to
Turbo-Charger
Air Filter
Swivel Fitting
Inner Control
Cable
Outer Sheath
with Adjuster
Top Face of
Air Filter Housing
Alternate
Air Valve
Attaching
Nut and Washer
Attaching
Screw
Alternate Air
Valve Flap
Worm-Drive Clamp
Worm-Drive Clamp
%
%
%
%
%
%
%
%
%
%
%
%
%
%
%
%
%
%
%
%
%
%
%
%
%
%
%
%
%
%
%
%
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%
%
% Figure 1: Engine Air Filter and Alternate Air Valve
AIRCRAFT
DA 40 Series
AMM
Power Plant
Doc # 6.02.01
Rev. 5 71-61-00 Page 101
20 Sep 2007
Trouble-Shooting
1. General
The table below lists the defects you could have with the air intake system. If you have the trouble
detailed in the Trouble column read across to the Possible Cause column. Then do the repair given in
the Repair column.
Trouble Possible Cause Repair
Engine does not develop full
power.
Air filter blocked/defective. Replace air filter.
AIRCRAFT
Power Plant DA 40 Series
AMM
Page 102
20 Sep 2007 71-61-00 Doc # 6.02.01
Rev. 5
Intentionally left blank
AIRCRAFT
DA 40 Series
AMM
Power Plant
Doc # 6.02.01
Rev. 5 71-61-00 Page 201
20 Sep 2007
Maintenance Practices
1. General
These maintenance practices tell you how to remove and install the air filter and the alternate air valve
assembly. They also tell you how to adjust, remove and install the alternate air control cable.
Refer to the TAE 125-01 Operator's Manual for the data on the fuel injection system.
2. Remove/Install the Air Filter
A. Remove the Air Filter
Detail Steps/Work Items Key Items/References
WARNING: DO NOT STAND WITHIN THE DANGER AREA OF THE PROPELLER.
IF THE ENGINE STARTS, THE PROPELLER CAN CAUSE DEATH OR
　
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