A 747-400 MAINTENANCE MANUAL
D633U101-E1
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 747-400 MAINTENANCE MANUAL
CHAPTER 29 - HYDRAULIC
TABLE OF CONTENTS_________________
Chapter
Section
Subject_______ Subject_______ Page____ Effectivity___________
HYDRAULIC POWER_______________ 29-00-00
Description and Operation 1 ALL
General 1
Fluid - Hydraulic 4
Supply Systems - Main Hydraulic 1
Systems - Indicating and Warning 2
Tubing, Hoses, and Fittings - 3
Hydraulic
Units - Modular 3
Valves - Hydraulic System Check 3
Hydraulic Fluid 601
Inspection/Check 601 ALL
MAIN HYDRAULIC SUPPLY SYSTEM____________________________ 29-10-00
Component Location 101 ALL
Component Index
Component Location
MAIN HYDRAULIC SUPPLY SYSTEM 29-11-00
Description and Operation 1 ALL
General 1
Exchanger - Heat 5
Filters - Hydraulic Fluid 5
Module (HYDIM) - Hydraulic 6
Interface
Module - Case Drain 6
Module - Pressure 5
Module - Reservoir 6
Pressurization
Module - Return 6
Pump - Demand 4
Pump - Engine-Driven 1
Reservoir 4
Valve - Hydraulic Supply 5
Shutoff
Operation 6
29-CONTENTS
GUN Page 1 Feb 18/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
CHAPTER 29 - HYDRAULIC
TABLE OF CONTENTS
_________________
Chapter Section Subject_______ Subject ____ Effectivity
_______ Page ___________
Maintenance Practices 201 ALL General 201 Bleed the Hydraulic System 227 Depressurization - Hydraulic 218
System
Fluid - Hydraulic System, 244
Replacement
Flush a Demand Pump Pressure 236
Line and Case Drain Line
Flush a Return Line 239
Flush an EDP Pressure Line and 230
Case Drain Line
Flush the Hydraulic System 221
Pressurization - Hydraulic 211
System, With a Demand Pump
Pressurization - Hydraulic 205
System, With a Hydraulic
Service Cart
Pressurization - Hydraulic 216
System, With an Auxiliary AC
Hydraulic Pump
Pressurization - Hydraulic 213
System, With an Engine-Driven
Pump (EDP)
29-CONTENTS
GUN Page 2 Feb 18/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
CHAPTER 29 - HYDRAULIC
TABLE OF CONTENTS
_________________
Chapter Section
Subject_______ Subject ____ Effectivity_______ Page ___________
Inspection/Check 601 ALL General 601 Differential Pressure 674
Indicators - Pressure and
Return Filters
Gross Internal Leakage Check -602
Hydraulic System No. 1
Gross Internal Leakage Check -606
Hydraulic System No. 2
Gross Internal Leakage Check -610
Hydraulic System No. 3
Gross Internal Leakage Check -615
Hydraulic System No. 4
Hydraulic System External 680D
Leakage Check
Internal Leakage Check 680H
Internal Leakage Check -619
Hydraulic System No. 1
Internal Leakage Check -632
Hydraulic System No. 2
Internal Leakage Check -647
Hydraulic System No. 3
Internal Leakage Check -662
Hydraulic System No. 4
Movement of the Fluid Between 680L
the Hydraulic Systems Check
29-CONTENTS
GUN Page 3 Feb 18/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 747-400 MAINTENANCE MANUAL
CHAPTER 29 - HYDRAULIC
TABLE OF CONTENTS
_________________
Chapter Section Subject_______ Subject ____ Effectivity
_______ Page ___________
AIR FILTER AND WATER SEPARATOR -29-11-15
TURBINE DRIVE
Maintenance Practices 201 ALL General 201 Air Filter and Water 203
Separator - Installation Air Filter and Water 202 3
Separator - Removal Clean an Air Filter 213 Clean the Water Separator 215
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