NOTE: The support rods are installed on the outer side of
____ the aft mounting flange of the turbine drive. Make sure the bolt heads point in for each support rod. The washers are installed adjacent to the bolt head and the nut and between the support rod and the flange.
 (l)  
Tighten the bolts (22, 24, and 26).

 (m)  
Install the clamp (13) on the pneumatic duct.

 1)  Use the turnbuckle that attaches the clamp to the structure to align the clamp if it is necessary.

 (n)  
Remove the caps from the hoses and the ports.

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 29-11-08
 ALL  ú ú 01 Page 414 ú Jun 18/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL

 (o) (p) (q)  Connect the pressurization hose (3) for the hydraulic reservoir to the pneumatic duct.Attach the clamps (4) around the wire harness with the bolts (5 and 8), the washers (6), the spacer (9), and the nuts (7).Tighten the turbine exhaust cascade (15) with the screws (16).
 (r) (s)  Connect the electrical connector (1), for the applicable system, to the position switch on the shutoff valve actuator: 1) DM647B for system 1 2) DM874B for system 4.Connect the electrical connector (14), for the applicable system, to the electrical component receptacle: 1) DM647A for system 1 2) DM847A for system 4
 S 414-078
 (4)  Install the auxiliary hydraulic pump (AMM 29-21-01/401).
 S 414-079
 (5)  Install the ADP (AMM 29-11-17/401).
 S 864-110
 (6)  Remove the DO-NOT-CLOSE tag and close the circuit breaker for the applicable system: (a) P7 Overhead Circuit Breaker Panel 1) 7J1 HYD DEMAND 1 for system 1 2) 7F1 HYD DEMAND 4 for system 4.
 S 614-081
 (7)  Fill the oil system for the turbine drive (2) if it is necessary (AMM 12-13-09/301).
 S 614-082
 (8)  Look at the EICAS HYD display to monitor the hydraulic reservoir level.
 (a)  Fill the hydraulic reservoir if it is necessary (AMM 12-12-01/301).
 S 794-096
 (9)  Do a test of the turbine drive installation: (a) Install the ADP muffler on the turbine exhaust.

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 29-11-08
 ALL  ú ú 07 Page 415 ú Jun 18/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 (b)  
Apply the leak detector to the pneumatic duct clamp (13) and the pressurization hose (3).

 (c)  
Supply pressure to the pneumatic system (AMM 36-00-00/201).

 (d)  
Put the applicable switch, on the P5 panel, in the ON position: 1) HYD DEMAND 1 for system 1 2) HYD DEMAND 4 for system 4.

 (e)  
Examine the turbine drive installation for leakage.
 1) If you find leakage, repair the cause of it.

 (f)  
Put the applicable switch, on the P5 panel, in the OFF position: 1) HYD DEMAND 1 for system 1 2) HYD DEMAND 4 for system 4.

 (g)  
Release the pressure in the pneumatic system
 (AMM 36-00-00/201).

 (h)  
Remove the ADP muffler.

 S 414-091
 CAUTION: MAKE SURE YOU LATCH THE FAIRING DOORS ON THE TRAILING EDGE
_______ CORRECTLY. DAMAGE CAN OCCUR IF THE DOORS OPEN DURING A FLIGHT.
 (10)
 Close the fairing doors on the trailing edge of the strut (AMM 54-62-00/201).

 S 864-092

 (11)
 Remove electrical power if it is not necessary for other operations (AMM 24-22-00/201).

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 29-11-08
 ALL  ú ú 03 Page 416 ú Jun 18/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 SHUTOFF AND SPEED CONTROL VALVE UNIT - REMOVAL/INSTALLATION
　
中國航空網 m.k6050.com
航空翻譯 www.aviation.cn
本文鏈接地址：747-400 AMM 飛機維護手冊 液壓 HYDRAULIC 1(121)