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(12) Loosen the screw which holds the control cable
to the swivel fitting in the distributor valve.
(13) Remove the front locknut from the control cable
for the distributor valve.
(14) Move the control cable clear of the valve.
(15) Disconnect the 2 canopy defrost hoses from the
valve.
(16) Disconnect the 2 hot air hoses to the passengers'
footwells from the valve.
(17) Remove the valve from the airplane.
AIRCRAFT
Air Conditioning DA 40 Series
AMM
Page 206
20 Sep 2007 21-01-00 Doc # 6.02.01
Rev. 5
B. Install the Distributor Valve
Detail Steps/Work Items Key Items/References
(1) Hold the distributor valve in front of the firewall.
(2) Attach the 2 hot air hoses which go from the
passengers' footwells to the bottom outlets.
Use cable binders.
(3) Attach the 2 defrost hoses which go to the
instrument panel cover to the top outlets.
Use cable binders.
(4) Attach the outer sheath of the distributor valve
control cable to the bracket at the top rear of the
distributor valve:
S Put the cable through the hole.
S Attach the locknut.
(5) Set the distribution control lever to DEFROST.
Then move it down about 3 mm (1/8 in).
(6) Attach the distributor valve control cable:
S Put the control cable through the hole in the
swivel fitting.
S Make sure that the flap is hard against the
bottom of the valve.
S Tighten the screw in the swivel fitting.
(7) Do a test for correct operation of the flap in the
distributor valve.
Refer to Paragraph 5.
(8) Attach the outer sheath of the heat valve control
cable to the top front of the distributor valve:
S Put the cable through the hole.
S Attach the locknut.
Where the cable outer sheath attaches
to the distributor valve.
Turn the threaded adjuster into the
hole.
(9) Move the distributor valve aft through the hole in
the firewall.
Make sure that the control cables and
hoses do not catch.
AIRCRAFT
DA 40 Series
AMM
Air Conditioning
Doc # 6.02.01
Rev. 5 21-01-00 Page 207
20 Sep 2007
Detail Steps/Work Items Key Items/References
(10) Move the valve into position on the cockpit side of
the firewall.
The hole in the firewall holds the front of
the valve.
(11) Install the 2 attaching bolts and washers. In the side walls of the floor panel in the
cockpit. Torque: 6.4 Nm (4.7 ft.lb).
(12) Install a new copper seal between the distributor
valve and the firewall.
Use self-adhesive copper tape.
(13) Install the heat valve. Refer to Paragraph 2.
(14) Connect the 2 flexible hot air hoses to the
passengers' footwells.
Use cable binders.
(15) Install the pilots' seats. Refer to Section 25-10.
(16) Install the instrument panel cover. Refer to Section 25-10.
(17) Connect the battery. Refer to Section 24-34.
(18) Install the engine cowlings. Refer to Section 71-11.
5. Test/Adjust the Distributor Valve
Detail Steps/Work Items Key Items/References
(1) Set the distribution control lever in the cockpit
to DEFROST.
There should be 'bounce' of about
3 mm (1/8 in) between the back of the
lever and the cockpit stop.
WARNING: IF THE ENGINE HAS BEEN RUNNING, TAKE CARE WHEN YOU
TOUCH THE DISTRIBUTOR VALVE. THE DISTRIBUTOR VALVE
GETS HOT.
(2) Make sure that the flap is hard against the bottom
of the of the distributor valve.
Reach through the outlet hole for the
pilots' footwells in the floor panel. Push
against the bottom of the flap. Then let
it return.
(3) Set the distribution control lever in the cockpit
to FLOOR.
There should be 'bounce' of about
3 mm (1/8 in) between the back of the
lever and the cockpit stop.
AIRCRAFT
Air Conditioning DA 40 Series
AMM
Page 208
20 Sep 2007 21-01-00 Doc # 6.02.01
Rev. 5
Detail Steps/Work Items Key Items/References
(4) Make sure that the flap is hard against the top of
the of the distributor valve.
Reach through the outlet hole for the
pilots' footwells in the floor panel.
(5) If the valve is not correctly adjusted, do the
following items.
(6) Remove the top cover plate from the engine
control assembly.
Refer to Section 31-11.
(7) Adjust the control cable in the swivel fitting to give
the correct bounce:
S Set the distribution control lever close to
DEFROST.
S Loosen the screw in the swivel fitting.
S Move the flap a small distance.
S Tighten the screw in the swivel fitting.
At the cockpit end of the control cable.
If there was no bounce in the
DEFROST position, then move the flap
　
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