S 495-037 WARNING: REFER TO AMM 32-00-30/201 FOR LOCK INSTALLATION PROCEDURE.
_______ RAPID ACTION OF DOORS MAY INJURE PERSONNEL OR DAMAGE EQUIPMENT IF LOCKS ARE NOT PROPERLY INSTALLED.
 (6)  
Install wing and body gear door locks (AMM 32-00-30/201). S 215-038

 (7)  
Make sure that the body landing gear doors are held open by the door actuators acting alone.

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 32-33-00
 ALL  ú ú 01 Page 505 ú Oct 15/98
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 (8)  S 485-039Make sure that a rigging pin can be inserted without binding in the left and right body gear door operated sequence valves.
 (9)  S 865-044Move the landing gear control lever to the OFF position.
 S 485-040

 (10)
 Make sure that a rigging pin can be inserted without binding in the left and right body gear downlock operated sequence valves.

 S 085-041

 (11)
 Remove rig pins from door operated sequence valves.

 S 085-042

 (12)
 Remove rig pins from downlock operated sequence valves.

 S 095-014
 WARNING:_______REFER TO AMM 32-00-30/201 FOR LOCK PROCEDURE. RAPID ACTION OF DOORS MAY INJURE PERSONNEL OR DAMAGE EQUIPMENT.
 (13)
 Remove body and wing gear door locks (AMM 32-00-30/201).

 S 095-015

 (14)
 Remove the body and wing gear ground lock pins (AMM 09-11-00/201).

 S 865-045

 (15)
 Move the ground release handles for the doors for the main landing gear to the doors closed position.

 S 735-016

 (16)
 Continue the test of the body gear downlock operated sequence valve rigging.

 (a)  
Move the landing gear control lever to the DOWN position. 1) Make sure that the "GEAR DISAGREE" message disappears from the upper EICAS display. 2) Make sure that the "GEAR DOOR" message disappears from the upper EICAS display when the doors close. 3) Turn the EIU select switch on the P2-4 panel between L, C, and R. 4) Make sure the GEAR DISAGREE and GEAR DOOR messages do not appear for the L, C, and R EIUs. 5) Turn the EIU select switch on the P2-4 panel between L, C, and R. 6) Make sure the gear DOWN message appears on the upper EICAS display for the L, C, and R EIUs.

 7)  Make sure that the upper EICAS gear display shows a single box indicating "DN".
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 32-33-00
 ALL  ú ú 01 Page 506 ú Oct 15/98
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
 (b)
(c)

(d)

A
747-400
MAINTENANCE MANUAL

 8)  Make sure that the EICAS "GEAR" lower display indicates that all five gear doors are closed.
 9)  Make sure the EICAS GEAR lower display shows that all five
 gear doors are closed for the L, C, and R EIUs.
Move the landing gear control lever to the "UP" position.
 1)  Make sure that the landing gear control lever moves to the
 "UP" position without use of the lever lock overide switch.
 NOTE: This verifies that the gear tilt proximity switch____
 targets are installed correctly.
 2)  Make sure that the "DN" indication on the upper EICAS gear
 display changes to the in-transit indication (a slashed
 box) as soon as the landing gear starts retracting.
 3)  Make sure that the gear retracts and that the doors close.
 a) Make sure the components attached to the landing gear
 do not interfere with the landing gear as it retracts.
 4)  Make sure that the gear in-transit indication changes to
 the gear "UP" indication on the upper EICAS gear display
 when the landing gear has retracted.
 5)  Turn the EIU select switch on the P2-4 panel between the L,
 C, and R EIUs.
　
中國航空網 www.k6050.com
航空翻譯 www.aviation.cn
本文鏈接地址：747-400 AMM 飛機維護手冊 起落架 LANDING GEAR 4(119)