EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
71-11-05
ALL ú ú N01 Page 506 ú Oct 10/95
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
CORE COWL PANEL - MAINTENANCE PRACTICES (OPENING/CLOSING)
_________________________________________________________
1. General
_______
A. Two tasks are given in this subject. The first task opens the core cowl panel. The second task closes the core cowl panel. These two tasks are for the inboard and outboard core cowl panels.
B. The core cowl panel is held open by the hold-open rod. The lower end of the hold-open rod is attached to the core cowl by a universal joint. When you move the collar, it releases the top end of the hold-open rod from the stow bracket on the core cowl panel. This permits the hold-open rod to connect to the receiver bracket on the engine. When the hold-open rod is fully extended, it is automatically locked in its position. It is important to make sure that the hold-open rod is locked open because injury to persons can occur if the core cowl panel falls.
TASK 71-11-06-012-016-N00
2. Open the Core Cowl Panel (Fig. 201)
________________________
A. References
(1)
AMM 78-31-00/201, Thrust Reverser System
B.
Access
(1)
Location Zone
417 and 418 Core Cowl Panel - Engine 1
427 and 428 Core Cowl Panel - Engine 2
437 and 438 Core Cowl Panel - Engine 3
447 and 448 Core Cowl Panel - Engine 4
C.
Procedure
S 042-010-N00
WARNING: DO THE THRUST REVERSER DEACTIVATION PROCEDURE TO PREVENT THE
_______ OPERATION OF THE THRUST REVERSER. THE ACCIDENTAL OPERATION OF THE THRUST REVERSER CAN CAUSE INJURIES TO PERSONS OR DAMAGE TO EQUIPMENT.
(1) Do this procedure: Thrust Reverser Deactivation for Ground Maintenance (AMM 78-31-00/201).
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
71-11-06
ALL ú ú N01 Page 201 ú Jun 18/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES /MAINTENANCE MANUAL ////////////////////////
SEE A
STOW BRACKET
HOLD OPEN ROD
COLLAR
LATCH 1
RECEIVER BRACKET
CORE COWL PANEL
FWD
A
1 MAKE SURE THE LATCH FACES FORWARD
Core Cowl Opening Figure 201
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
71-11-06
ALL ú ú N01 Page 202 ú Jun 10/96
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
S 012-000-N00
WARNING: USE CAUTION WHEN YOU OPEN THE CORE COWL PANELS IN HIGH WINDS.
_______ IF YOU DO NOT USE CAUTION, INJURY TO PERSONS OR DAMAGE TO EQUIPMENT CAN OCCUR.
WARNING: DO NOT HOLD THE CORE COWL PANELS OPEN WITH THE HOLD-OPEN RODS
_______ IF THE WIND VELOCITY IS MORE THAN 60 KNOTS. THE HOLD-OPEN ROD CAN HAVE A FAILURE IN HIGH WINDS WHICH CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
(2) Open the latches on the bottom of the core cowl panel.
(a)
Open the forward latch. 1) Push the trigger to release the handle. 2) Pull the handle down to release the latch.
(b)
While you move to the rear, open the remaining latches.
S 012-004-N00
(3) Open the core cowl panel.
(a)
Move the collar for the hold-open rod down.
(b)
Remove the top end of the hold-open rod from the stow bracket.
WARNING: MAKE SURE THE HOLD-OPEN ROD IS FULLY EXTENDED AND LOCKED
_______ WHEN THE CORE COWL PANEL IS OPEN. IF THE HOLD-OPEN ROD IS NOT CORRECTLY LOCKED, THE CORE COWL PANEL CAN FALL. THIS CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
(c)
Fully extend the hold-open rod to the locked position.
(d)
Open the core cowl panel.
(e) 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 动力装置 POWER PLANT 2(76)
