BRAKES
SLATS FLAPS
FROM
L RESERVOIR

RUDDER RATIO
NOSE GEARLANDING GEARYAW DAMPER CHANGER
STEERING ACTUATION
POWER
TRANSFER UNIT

SUPPLY PRESSURE
HYDRAULIC

1 AIRPLANES WITH HYDRAULIC
HYDHYDMOTOR DRIVENPUMP
MOTOR RETURN AIR MOTOR-DRIVEN GENERATOR
GENERATOR

1
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 29-11-00
 ALL  ú ú 04 Page 17 ú Jan 28/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
Hydraulic System Schematic
Figure 13

A
757
MAINTENANCE MANUAL

NORM OPEN
OPEN
BAT BUS

28V DCFROM RESERVOIRENG HYD PUMP
M
SOV L

28V DC
L BUS
DISCH

CLOSE
(SH 2)
L ENG HYD PUMP
1 2 CLOSED
DEPRESS VLV

A
OFF FIRE 28V DC
ENG HYD PUMP L SUPPLY
R BUS

GROUND SVCE.INSTR
SHUTOFF VALVE DISCONNECTELEC HYD PUMP LEFT ENG FIRE
WW
LTS CONTROL L
SW ON
INLET
ENGINE
ENG FIRE CONT MDL EDP
ACCESS DRIVE
P11 DRAIN ON OUTLET L ENG HYD PUMPENG HYD PUMP L SEL SW DEPRESS VALVE CD IN
PIN
SYS
PRESS

RSVR
TO HYD TEMPL
TO PTU SYS
IND SYSHYD ENG
L EDP CASE DRNTEMP SW ON
TO HYD PRESS.
PRESS

IND SYSENG HYD PUMPOVHT L PRESS. SW ELEC
T
AUTO

PRESSEDP PRESS./
OVHT OFF
CASE DRAINFLTR MDL
B (SH 2)
1
HEATEXCH
W WON
ON 4100
P.S.I.
TO HYD PRESS.
R
ELEC HYD PUMP L SEL SW
4 SUPPLY
IND SYS
CD L HYD SYS
HYD CONTROL PANEL P OUT OUT RETURN PRESS. SW
2PRESSURE L HYD RETURN
3
Left Hydraulic System Schematic
Figure 14 (Sheet 1)

EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 29-11-00
 ALL  ú ú 09 Page 18 ú Jan 28/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
H44347
A
757
MAINTENANCE MANUAL

FROMRESERVOIR INLET
115V/200V ACBUS R
A (SH 1)
B (SH 1) LEFT ACMPCONT RELAY 4 SECCONTROL MODULEL ACMP T/DMODULE T TO HYD TEMPCASEIND SYSDRAIN
ACMP ELCU
OUTLET

L ELECT HYD PUMP
MOTOR
　
中國航空網 www.k6050.com
航空翻譯 www.aviation.cn
本文鏈接地址：757 AMM 飛機維護手冊 液壓 CHAPTER 29 - HYDRAULIC POWER 1(23)