(e)
Make sure that the CDU display shows a positive angle of 24.0 |1.5 degrees for the side B.
(f)
Set the automatic vane positioning tool to -10.0 degrees.
(g)
Make sure that the CDU display shows a positive angle of 4.0 |1.5 degrees for the side B.
(h)
Remove the angle-of-airflow sensor calibration tool from the right alpha vane.
S 865-040
(4)
Close the R ALPHA VANE HEATER and L ALPHA VANE HEATER circuit breakers on the P18-3 Circuit Breaker Panel.
S 745-177
(5)
Push the INIT/REF key on the CDU keyboard to get out of the BITE.
M. Put the Airplane Back to Its Initial Condition
S 865-154
(1)
Remove hydraulic power if it is not necessary (AMM 29-15-00/201).
S 085-123
(2)
Remove all the test equipment.
S 085-124
(3)
Remove the feel pitot system pressure air supply.
S 015-125
(4)
Close all the access panels and doors.
(5)
Close all the circuit breakers.
(6)
Remove electrical power if it is not necessary (AMM 24-22-00/201).
S 865-126
S 865-155
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A
737-300/400/500MAINTENANCE MANUAL
TASK 22-11-00-735-138
5. DC Bus Isolation Bus____________________
NOTE: This is a scheduled maintenance task.
____
A. Reference
(1) AMM 34-31-00/501, VOR/ILS Navigation System
B. Bus Isolation Bus
S 865-163
(1)
Set the meter selector switch for the Transformer Rectifier Unit (TRU) on the Pilots' Overhead Panel to the TR2 position.
S 865-104
(2)
Open the AFCS B FCC DC circuit breaker on the P6-2 Circuit Breaker Panel.
S 865-105
(3)
Open the TR2 and TR3 circuit breakers on the P6-4 Circuit Breaker Panel.
S 745-183
(4)
Make sure that the DC voltmeter on the Pilots' Overhead Panel, P5-13 reads 22 to 30v dc.
S 745-106
(5)
Push the INIT/REF key on the CDU keyboard to show the POS INIT page or PERF INIT page.
(6)
Push the LSK adjacent to <INDEX to show the INIT REF INDEX 1/1 page.
S 745-108
(7)
Push the LSK adjacent to MAINT> to show the MAINT BITE INDEX 1/1 page.
S 745-107
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737-300/400/500MAINTENANCE MANUAL
(8) S 745-109Push the LSK adjacent to <DFCS to show the DFCS BITE TEST LINE MAINT 1/2 page.
(9) S 745-110Push the NEXT PAGE key on the CDU keyboard to show the DFCS BITE TEST OVERNIGHT MAINT 2/2 page.
S 745-111
(10) Push the LSK adjacent to <GROUND FUNCTIONAL.
NOTE: The CDU display will show TEST IN PROGRESS during the
____ 13-second cross-channel test.
S 745-112
(11)
Follow the CDU instructions until the CDU display shows the CHANNEL SELECTION page.
S 745-113
(12)
Push the LSK adjacent to <CHANNEL A to show the FCC memory contents of channel A.
S 745-114
(13)
Push the LSK adjacent to <TEST SELECTION.
S 745-115
(14)
Use the CDU keyboard to put the library test No. 13 into the CDU scratchpad.
S 745-116
(15)
Push the LSK 6R to put the library test No. 13 on the screen and in the memory.
S 745-117
(16)
Push the LSK adjacent to <EXECUTE to do the test 60.13 "AFDS FMA" is shown on the CDU.
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