Eagle ICA-D212-725, Instructions Manual

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ICA-D212-725 (96)
Page 38 of 90
CHAPTER 96 – ELECTRICAL SYSTEM (96-00-00)

COPYRIGHT

2007 BY DART AEROSPACE LTD.

THIS DOCUMENT IS PRIVATE AND CONFIDENTIAL AND IS SUPPLIED ON THE EXPRESS CONDITION THAT IT IS NOT TO BE USED FOR ANY PURPOSE OR COPIED OR COMMUNICATED TO ANY
OTHER PERSON WITHOUT WRITTEN PERMISSION FROM DART AEROSPACE LTD.
Revision:
4
Date: 11.06.01
96.3.19 Power Diode Functional
Checkout Procedure
Perform diode functional checkout procedures
when loss of No.1 or No.2 DC essential bus
occurs due to tripping of power circuit breakers or
when power diode short circuit or power diode
open circuit is suspected. Power diode functional
checkout is also required during scheduled
inspection (Chapter 5). Power diodes
incorporated in BUS 1 and BUS 2 FEEDER
circuits consists of diodes CR30, CR31, CR32,
and CR33, refer to Wire Diagram Figure 98-11 for
electrical bus wiring schematic and Wire Diagram
Figure 98-10 for DC generator wiring diagram.
SPECIAL TEST EQUIPMENT
TYPE OR MODEL NOMENCLATURE
Fluke Model 85 or equivalent Digital
Multimeter
96.3.19.1
Refer to Table 96-6 and Figure 96-
4 and perform diode functional checkout
procedures.
96.3.19.2
Replace defective diodes, wiring or
components identified during checkout
procedures.
Note: Instructions (Refer to Figure 96-4)
96.3.19.3
Position all switches not listed
below in OFF or NORMAL position and close all
circuits not listed below.
96.3.19.4
Perform tests A through E.
96.3.19.5
Replace all diodes found to be
open or shorted.
Table 96-6. Power Diode Functional Checkout Procedures.
CIRCUIT BREAKERS AND SWITCHES A B C D E
1 BATTERY switch ON ON ON ON ON
2 NONESS BUS switch (OFF=NORMAL) OFF OFF OFF OFF OFF
3 Pilot side No.2 ESS BUS FEEDER circuit breaker
(inboard)
Open Close Open Open Open
4 Pilot side No.2 ESS BUS FEEDER circuit breaker
(outboard)
Open Open Open Close Open
5 Copilot side No.1 ESS BUS FEEDER circuit breaker
(inboard)
Open Open Open Open Close
6 Copilot side No.1 ESS BUS FEEDER circuit breaker
(outboard)
Open Open Close Open Open
MONITOR RESULTS NECESSARY FOR PROPER
OPERATION
DC Voltmeter No.1 0VDC 0VDC +VDC 0VDC +VDC
External Voltmeter( Connected to No.2 ESS BUS 0VDC +VDC 0VDC +VDC 0VDC
FEEDER)
NOTE: Tests are designed for main battery only.