(q)
Release the pedal. 1) Make sure the pedal moves to neutral | 1.0 degrees.
(r)
Remove the tool.
S 865-099
(8)
Make sure this circuit breaker is closed:
(a)
P7, Overhead Circuit Breaker Panel
1) 7F24, LANDING GEAR LEVER LOCK
(9)
Pressurize hydraulic system No. 1 and 4 (AMM 29-11-00/201).
S 865-101
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
32-41-00
ALL ú ú 01 Page 536 ú Jun 18/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
S 495-049
WARNING:_______ YOU MUST CAREFULLY INSTALL THE GROUND LOCKS IN ALL LANDING
GEAR. AN ACCIDENTAL RETRACTION OF THE LANDING GEAR CAN CAUSE
INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
(10) Make sure the ground locks are installed in all landing gear (AMM 09-11-00/201).
S 495-053
WARNING: YOU MUST CAREFULLY DO THE STEPS IN THE TASK BELOW TO INSTALL
_______ THE DOOR LOCKS ON THE LANDING GEAR DOORS. THE DOORS CAN CLOSE QUICKLY IF YOU DO NOT INSTALL THE DOOR LOCKS CORRECTLY. THIS CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
(11)
Do this task: "Install the Door Locks for all the landing gear" (AMM 32-00-30/201).
S 495-081
(12)
Do this task: "Installation of the Door Locks on the Body Landing Gear" (AMM 32-00-30/201).
S 735-040
(13)
Do the steps that follow to do a test of automatic braking after landing gear retraction:
(a)
Make sure the pressure indication for hydraulic systems No. 1 and 4 on EICAS shows 2900 - 3150 psig.
(b)
Move the landing gear lever to the UP position.
NOTE: Push the LOCK OVERRIDE button while you move the lever
____ to the UP position.
(c) Make sure that each brake pressure begins to rise instantly.
NOTE: You must fully open the right body gear door to achieve
____ the brake pressure. Hold or tie back the door in the full open position if the door actuator has been disconnected.
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
32-41-00
ALL ú ú 01 Page 537 ú Feb 18/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
(d)
Make sure the pressure gages on the brakes show an immediate pressure increase to 500 - 700 psig in 6 seconds.
(e)
Make sure there is no noise or sign of high frequency instability.
(f)
Move the landing gear lever to the DN position.
H.
Put the Airplane Back to Its Usual Condition
S 845-083
(1)
Put the No. 1 through and 4 TAIL FLIGHT CONTROL SHUTOFF switches and the WING FLIGHT CONTROL switches No. 1 through 4 on the P461 panel to the ON position.
S 095-053
(2)
Remove rig pin No. 3 from the forward rudder quadrant (left side).
S 865-082
(3)
Remove the DO-NOT-CLOSE tags and close these circuit breakers:
(a)
P414, Power Distribution Center - Left Panel
1) 414D8, CAPT PWR SEAT
(b)
P415, Power Distribution Center - Right Panel 1) 415H32, F/O PWR SEAT
S 865-043
(4)
Remove the power from hydraulic systems No. 1, 2, and 4
(AMM 29-11-00/201).
S 845-085
(5)
Make sure the parking brake is released.
(6)
Remove the pressure gage from each brake (16 locations).
(7)
Install a brake bleeder assembly at each brake (16 locations).
S 095-057
S 435-045
NOTE: The brake bleeder assembly has a bleeder valve installed in a
____ bleeder adapter fitting. The bleeder adapter fitting is installed in the brake assembly. Open and close the bleeder valve to bleed the brake.
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
中国航空网 www.aero.cn
航空翻译 www.aviation.cn
本文链接地址：747-400 AMM 飞机维护手册 起落架 LANDING GEAR 6(49)
