(17)
Remove all rigging pins (Fig. 401 and 402).
S 094-030
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747-400 MAINTENANCE MANUAL
F. Test Command Transducer
S 864-031
(1)
Make sure that the landing gear control handle is in the DN position.
S 864-032
(2)
Provide electrical power (AMM 24-22-00/201).
S 864-033
(3)
Close the following circuit breakers:
(a)
P7 Overhead Circuit Breaker Panel
1) 7F22 LANDING GEAR DSP & CONT PRI
2) 7F23 LANDING GEAR DSP & CONT ALT
3) 7F25 PSEU SECT 1
4) 7F26 PSEU SECT 2
5) 7G25 NOSE GR STRG PRI
6) 7G26 NOSE GR STRG ALT
7) 7G23 BODY GR STRG ARM AC
8) 7G24 BODY GR STRG ARM DC
(b)
On the P180 DC Power Distribution Panel
1) 180J07 ANTI-SKID 1, 3
2) 180F07 ANTI-SKID 2,4
3) 180J22 ANTI-SKID 5, 7
4) 180F22 ANTI-SKID 6, 8
5) 180F23 ANTI-SKID 9, 11
6) 180J23 ANTI-SKID 10, 12
7) 180F08 ANTI-SKID 13, 15
8) 180J08 ANTI-SKID 14, 16
9) 180F10 BRK CONT IND/TEST 2
10) 180F25 BRK CONT IND/TEST 1
S 864-034
(4)
Make sure that the captain's and the first officer's tillers are in the neutral position.
(5)
Make sure that the rudder pedals are in the neutral position.
S 014-036
(6)
Disconnect the nose gear torsion links at the apex
(AMM 32-21-03/201).
S 224-037
(7)
Measure the angle of the steering collar on the protractor at the nose gear wheel.
S 014-038
(8)
Disconnect the body gear torsion link from the steering actuators (AMM 32-53-11/201).
S 864-035
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747-400 MAINTENANCE MANUAL
S 224-039
(9)
Make sure that the actuators and their fittings are free to move throughout the range of travel of each actuator in the extend and retract directions.
S 864-040
(10)
Move the landing gear control handle to the DN position.
S 864-041
(11)
Make sure that the rudder trim is at the zero position.
S 864-042
(12)
Make sure that the rudder pedals are in the neutral position.
S 864-043
(13)
Make sure that the captain's and first officer's tillers are in the neutral position.
S 864-044
(14)
Make sure that the EIU source is set to AUTO for the EFIS/EICAS display.
S 864-045
(15)
Make sure that the following hardware is functional and operational:
-EIU
-EICAS
-PSEU
-CMC
S 864-046
WARNING: MAKE SURE THAT PERSONS AND EQUIPMENT ARE CLEAR OF ALL CONTROL
_______ SURFACES BEFORE YOU SUPPLY HYDRAULIC POWER. AILERONS, RUDDERS, ELEVATORS, FLAPS,SPOILERS,LANDING GEAR, AND THRUST REVERSERS CAND MOVE QUICKLY WHEN YOU SUPPLY HYDRAULIC POWER. THIS CAN CAUSE INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.
(16)
Provide system No. 1 hydraulic power (AMM 29-11-00/201).
S 744-047
(17)
Do a BITE check of the lock switches with the nose gear centered.
(a)
Push the OTHER FUNCTIONS on page 2 of the CDU main menu.
(b)
Push the button next to INPUT MONITORING.
(c)
Enter in E/070/271/00 on the scratchpad.
(d)
Push the line select key 1L.
(e)
Push the NEXT PAGE button.
(f)
Enter in E/070/273/00.
(g)
Push the line select key 1L.
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本文链接地址：747-400 AMM 飞机维护手册 起落架 LANDING GEAR 8(43)
