B. Install the ADF Receiver
Detail Steps/Work Items Key Items/References
(1) Remove the protective covers from the connectors on the replacement unit.
(2) Slide the unit into the rack. Engage the locking screw so that the latch front-lobe touches the rack.
(3) Turn the locking screw clockwise so that the rear lobe engages the mounting rack. Refer to Figure 1.
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Detail Steps/Work Items Key Items/References
CAUTION: DO NOT OVER-TIGHTEN THE LOCKING SCREW. YOU CAN DAMAGE THE LOCKING MECHANISM.
(4) Continue to turn the screw until the unit is fully installed in the mounting rack.
(5) Close the ADF circuit-breaker.
(6) Do a test of the ADF system. Refer to Paragraph 5.
3. Remove/Install the ADF Indicator
A. Remove the ADF Indicator
Detail Steps/Work Items Key Items/References
(1) Remove the instrument panel cover. Refer to Section 25-10.
(2) Dis-connect the connector from the rear of the ADF indicator.
(3) Remove the screws which attach the ADF indicator to the panel. Hold the instrument!
(4) Remove the ADF indicator from the panel.
B. Install the ADF Indicator
Detail Steps/Work Items Key Items/References
(1) Put the ADF indicator in position in the panel.
(2) Install the screws which attach the ADF indicator to the panel.
(3) Connect the connector to the rear of the ADF indicator.
(4) Install the instrument panel cover. Refer to Section 25-10.
(5) Do a test of the ADF system. Refer to Paragraph 5.
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4. Remove/Install the ADF Antenna
A. Remove the ADF Antenna
Detail Steps/Work Items Key Items/References
(1) Remove the passengers' seat. Refer to Section 25-10.
(2) Release the co-axial connector from the antenna.
(3) Release the screws, nuts and washers which hold the antenna. Release the bonding cable from the antenna.
(4) Carefully pull the antenna clear of the fuselage and hold it. If necessary, carefully cut the sealant around the base of the antenna. You must not damage the fuselage skin.
(5) Move the antenna clear of the airplane.
B. Install the ADF Antenna
Detail Steps/Work Items Key Items/References
(1) Carefully remove any sealant from the area where the antenna attaches to the fuselage.
(2) Clean the area where the antenna attaches to the fuselage.
(3) Put the antenna in position under the fuselage.
(4) Attach the antenna with the screws, washers and nuts. Attach the bonding cable to one of the screws.
(5) Connect the co-axial connector to the antenna.
(6) Seal the outer edge of the antenna to the fuselage skin with sealant. Use Dow Corning 732 RTV.
(7) Install the passengers' seat. Refer to Section 25-10.
(8) Do a test of the ADF system. Refer to Paragraph 5.
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5. Test the ADF System
DA 40 Series
Detail Steps/Work Items Key Items/References
(1) Switch the ADF ON: S Set the master switch ON. S Set the avionics master switch ON. S Turn the ADF ON/OFF/VOL knob clockwise. The ADF display must light. The ADF indicator must operate.
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本文链接地址：钻石40飞机维护手册 DA 40 SERIES AMM 4(6)
