Page 202 Doc # 6.02.01 09 Jan 2003 Rev. 4
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Electrical Power
AMM
4. Remove/Install a Circuit-Breaker
A. Remove a Circuit-Breaker
Detail Steps/Work Items Key Items/References
(1) Remove the top engine cowling. Refer to Section 71-10.
(2) Disconnect the battery: S Disconnect the negative cable from the battery. S Disconnect the positive cable from the battery. Refer to Section 24-31.
(3) Remove the instrument panel cover. Refer to Section 25-10.
(4) Remove the nuts and washers which attach the circuit-breakers to the instrument panel.
(5) Remove the screw which connects the circuit-breaker to the copper bus bar.
(5) Disconnect the wires from the circuit-breaker.
(7) Shift back the copper bus bar together with the remaining circuit-breakers.
(8) Remove the circuit-breaker from the instrument panel.
B. Install a Circuit-Breaker
Detail Steps/Work Items Key Items/References
(1) Put the circuit-breaker in position in the instrument panel.
(2) Move the copper bus bar forward together with the remaining circuit-breakers.
(3) Connect the wires to the circuit breaker. Refer to Chapter 92 for the Wiring Diagrams.
(4) Install the screw which attaches the circuit-breaker to the copper bus bar.
(5) Install the nuts and washers which attach the circuit-breakers to the instrument panel.
(6) Install the instrument panel cover. Refer to Section 25-10.
Doc # 6.02.01 Page 203
Rev. 4 09 Jan 2003
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AMM
DA 40 Series
Detail Steps/Work Items Key Items/References
(7) Connect the battery. Refer to Section 24-31. Connect the positive cable first.
(8) Install the top engine cowling. Refer to Section 71-10.
(9) Do a functional test of the circuit-breaker: S Set the ALT/BAT switch to ON. S Operate the electrical system related to the circuit-breaker you will test. S Pull the circuit-breaker. S Close the circuit-breaker. SSet the ALT/BAT switch to OFF. Apply the full electrical load to the system. The system must stop operating. Make sure there is no power to the system.
5. Remove /Install an Instrument Panel Switch
This procedure applies to the following switches:
) PITOT.
) LANDING, TAXI, POSITION and STROBE lights.
) AVIONIC MASTER.
) FUEL PUMP.
) ALT/BAT.
%) ESS. BUS (optional)
A. Remove an Instrument Panel Switch
Detail Steps/Work Items Key Items/References
(1) Remove the top engine cowling. Refer to Section 71-10.
(2) Disconnect the battery: S Disconnect the negative cable from the battery. S Disconnect the positive cable from the battery. Refer to Section 24-31.
Page 204 Doc # 6.02.01 09 Jan 2003 Rev. 4
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Electrical Power
AMM
DA 40 Series
Detail Steps/Work Items Key Items/References
(3) Remove the instrument panel cover. Refer to Section 25-10.
(4) Disconnect the electrical cables from the switch that you will remove.
(5) Remove the switch from the instrument panel: S Press the locking clips at the side of the switch to release the switch from the instrument panel. S Move the switch forward through the instrument panel and clear of the airplane. With your fingers from the back of the instrument panel.
B. Install an Instrument Panel Switch
Detail Steps/Work Items Key Items/References
(1) Hold the spring clips on the switch compressed and put the switch in position in the instrument panel. From the front of the instrument panel. Make sure that the clips have expanded and that the switch is correctly located.
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