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(8)  Remove the 2 screws which attach the distributor valve to the side walls of the floor panel.  In the cockpit. 
(9)  Move the distributor valve aft.  To give access to the control cables. Work through the hole in the firewall. 
(10)  Remove the bottom locknut from each control cable.  Where the cable outer sheath attaches to the distributor valve. 
(11)  Move the control cables clear of the valve. 
(12)  Move the valve forward through the firewall.  To give access to the rear of the valve. 
(13)  Disconnect the 4 hoses from the valve. 
(14)  Remove the valve from the airplane. 

Doc # 6.02.01 Page 205
Rev. 4 09 Jan 2003

21-00-00
AMM

B. Install the Distributor Valve
DA 40 Series

Detail Steps/Work Items  Key Items/References 
(1)  Hold the distributor valve in front of the firewall. 
(2)  Attach the 2 defrost hoses which go to the instrument panel cover to the top outlets.  Use cable binders. 
(3)  Attach the 2 hot air hoses which go from the passengers' footwells to the bottom outlets.  Use cable binders. 
(4)  Move the distributor valve aft through the hole in the firewall.  To give access to the control cables. Make sure that the control cables and hoses do not catch. 
(5)  Attach the outer sheath of the distributor valve control cable to the top rear of the distributor valve: S Put the cable through the hole. S Attach the locknut.  Work through the hole in the firewall. Turn the threaded adjuster into the hole. 
(6)  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. 
(7)  Move the valve into position in the firewall.  The hole in the firewall holds the front of the valve. 
(8)  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). 
(9)  Set the distribution control lever to .. Then move it down about 3 mm (0.1 in). 

Page 206 Doc # 6.02.01 09 Jan 2003 Rev. 4
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Air Conditioning
AMM

DA 40 Series

(10)  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. 
(11)  Do a test for correct operation of the flap in the distibutor valve.  Refer to Paragraph 5. 
(12)  Install the heat valve.  Refer to Paragraph 2. 
(13)  Connect the 2 flexible hot air hoses to the passengers' footwells.  Use cable binders. 
(14)  Install the pilots' seats.  Refer to Section 25-10. 
(15)  Install the instrument panel cover.  Refer to Section 25-10. 
(16)  Connect the battery.  Refer to Section 24-31. 
(17)  Install the engine cowlings.  Refer to Section 71-10. 

5. Test/Adjust the Distributor Valve
Detail Steps/Work Items  Key Items/References 
(1)  Remove the engine cowlings.  Refer to Section 71-10. 
(2)  Set the distribution control lever in the cockpit to ..  There must be 'bounce' of about 3 mm (0.1 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. 
(3)  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. 
　
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