757 Schematics Layout 1

Pneumatic System Schematic

Boeing 757 Southeast Flight SupportSFS

60 80

20 0

DUCTPRESSPSI

40

LDUCKLEAK

BLEED

L ISLN

L ENG APU R ENG

L PACK R PACK

GROUNDPNEUMATIC

GROUNDPNEUMATIC

BLEED AIR

R WING ANTI-ICEL WING ANTI-ICE

PRESSURE

TEMP

PRE-COOLER

PANEL FLOW LINESFLOW LINES ONT ON PANEL

LP

HPSOV HPSOV

STARTER STARTER

R ISLN

ISOLATION

HI STAGE

DUCKLEAK

BLEED

HI STAGE

OFF

VALVE

OFF

FAN AIRMOD VALVE

FAN AIRMOD VALVEAPU

VALVE..

LP

TAI TAI


..

....FLT DECKAUTO

OFFC W

..

....FWD CABAUTO

OFFC W

..

....AFT CABAUTO

OFFC W

INOP

M I X M A N I F O L D

INOPINOP

6 8 7 5 7 1

INOP

INCPINOPPACKOFF

INCPINOPPACKOFF

COMPT TEMP

Trim Air

Mix Manifold AirExhaust Air

Pack Air

ON

OFF

ON

INOP

ON

INOP

AUTOOFF N

STBY

C

W

AUTOOFF N

STBY

C

W

PNEUMATIC SUPPLYPNEUMATIC SUPPLY

Air Conditioning System Schematic

L PACK R PACK

RESET RESET

Cargo Heat Schematic


.

.FORWARDCARGO

COMPARTMENT

AFT CARGOCOMPARTMENT

FORWARD CARGO HEAT FAN

AFT CARGO HEAT FAN

Equipment Cooling Schematic


COCKPITINSTRUMENTPANELS

AFT E/E

CRITICALEQUIPMENTSHELVES

FWD E/E

*AUX

*AS INSTALLED ETOPS

SUPPLY

MIX MANIFOLD

LAVATORY GALLEY VENT

L. RECIRC

OVERBOARDEXHAUST

EXHAUSTOUTFLOW

ALTN

OVHT

SMOKE

EQUIP COOLING

Electrical System Schematic ER


. .

BAT

BATON

OFF

STBY POWER

OFF

HOT BATBUS DC

BATTERYBUS DC

LEFTDC

BTB

FROMINVERTER

FROMHOT BATBUS

STANDBYDC

STANDBYAC

CenterACRightDC

APUBat

GNDSERV

CenterDC

MAINBAT

TT

C AUTO

o o o

OFF

HYD DRIVENGENERATOR

L=Xfr R=Xfr

F/O FLTINSTRUMENT

CAPT FLTINSTRUMENT

B

OFF

ON

AVAILON

AUTO

ISLN

AUTO

ISLN

BUS TIE

L BUS R BUS

APU GEN EXT POWER

BUS TIE

LGENCONT

RGENCONT

BUSOFF

UTILITY BUS

L R

L R

OFFDRIVEDRIVE

AC PowerDC Power

Flow lines not on panel:

B

R

DISCH

R

C

ONOFF ON

ON

OFF

ON

OFF

BUSOFF

GNDHANDLING

Battery Switch On Standby Selector To Auto

Boeing 757

LEFT DC

DC POWERAC POWERLIGHT ILLUMINATED

FLOW LINES NOT ON PANEL:

LEFT DC BUS (NON-ER)LEFT AC XLER BUS (ER)

BAT

BATON

OFF

STBY POWER

HOT BATBUS DC

BATTERYBUS DC

STANDBYDC

STANDBYACMAIN

BAT

C AUTOOFF

B

OFF

DISCH

Southeast Flight SupportSFS

LEFT DCLEFT DC BUS (NON-ER)LEFT AC XLER BUS (ER)

Battery Switch On Standby Selector To Battery

BAT

BATON

OFF

STBY POWER

HOT BATBUS DC

BATTERYBUS DC

STANDBYDC

STANDBYACMAIN

BAT

C AUTOOFF

B

DISCH

OFFINV

Battery Switch On Standby Selector To Off

BAT

BATON

OFF

STBY POWER

HOT BATBUS DC

BATTERYBUS DC

STANDBYDC

STANDBYACMAIN

BAT

C AUTOOFF

B

DISCH

OFF

LEFT DC LEFT DC BUS (NON-ER)LEFT AC XLER BUS (ER)

Flight Control Surfaces Schematic

Boeing 757

TRAILING EDGE FLAPS

RUDDER

ELEVATOR

STABILIZER

SPOILERS

LEADINGEDGE SLATS

AILERON

1 2 3 4C RL R 9 10 11 12

R L R C5 6L R

7 8R L

Spoiler Control Schematic

. .

SPOILERCONTROLLER

DOWN

ARMED

UP

.

.. .


GRD USE ONLY

Elevator Control Schematic


R

CL

C

RL

E L EV A

T OR E L E V A T O R

..

COLUMNOVERRIDE

RIGHTHYD PRESS

757 C & R

CENTERHYD PRESS

ELEVATORFEEL

ELEVATORFEEL

LEFTHYD PRESS

ELEVATORFEEL

CENTERHYD PRESS

ELEVATORFEEL.

..

Stabilizer Control Schematic

TRIM

STAB

CMD CMD CMD

BRAKE

RIGHTHYDPRESS

CONTROLCOLUMNCUT-OFF

MATCH/SPEED TRIM

CONTROLCOLUMNCUT-OFF

TRIM SWITCHES TRIM LEVERS

ELECTRICTRIM

SWITCHES

AUTOPILOT

(Some Airplanes) (Some Airplanes)

CENTERHYDPRESS

MOTOR

BRAKE

MOTOR

.. .. .. ......

. . . .

A/P ENGAGE

L C R

APLNOSE UP

ALTNSTAB TRM

APLNOSE ON

STAB TRM

CUTOUT


..

Flap / Slat Control Schematic

FLAPLEVER

ALTERNATEFLAP CONTROLS

LEFT HYDRAULICSYSTEM

M

.

M

LE SLATDRIVE

TE FLAPDRIVE

BYPASSVALVE

.

NORM

UP

1

5

30

15

20

25

ALTN ALTN

LE TE


.

.

.

Aileron Control Schematic

CAPTAIN FIRST OFFICER

LEFTWINGDOWN

RIGHTWINGDOWN

TRIMSWITCHES

642 0 246AILERON TRM

AILERON

... .


.M

. .

RC L R

AILERONS AILERONS

Rudder Control Schematic

Boeing 757

R RUDDER

L

C

INOP

ON

INOP A

15 10 5 0 5 10 15RUDDER TRIM

L R

YAW DAMPER

NOSE LEFT UNITS NOSE RIGHT

NOSELEFT

NOSERIGHT

A

ON

YAW DAMPERCONTROLLERS

RUDDERRATIO

CHANGER

L C

L

. ..

. ..

..

M

*

Southeast Flight SupportSFS

Hydraulic System Schematic


LEFTSYSTEM

CENTERSYSTEM

RIGHTSYSTEM

ENGINEPUMP

ENGINEPUMPS

L THRUSTREVERSER

R THRUSTREVERSER

LEFT AUTOPILOTSERVOS

CENTERAUTOPILOTSERVOS

RIGHTAILERON

LEFTAILERON

ELEVATORFEEL

STABTRIM

SPOILERS SPOILERS

RUDDER

ALTEMATEBRAKES

RIGHTAUTOPILOTSERVOS

SPOILERS

NORMALBRAKES

ELECTRICPUMP

ELECTRICPUMP

RATPUMP

ELECTRICPUMPS

SPOILERS

*

*

VALVE

RUDDER

ELEVATORS

YAWDAMPERS

RUDDERRATIO

LANDINGGEAR

HYDGEN

NOSE WHEELSTEERING

FLAPS &SLATS

VALVEPOWERTRANSFER UNIT

(PTU)

757-200ER

Hydraulic Control Panel/EICAS Display Schematic


PRESS

ON

PRESS

ON

PRESS

ON

PRESS

ON

PRESS

ON

PRESS

ON

OVHT OVHT OVHT OVHT

OVHTOVHT

SYSPRESS

RSVR

SYSPRESS

RSVR

SYSPRESS

RSVR

HYD PUMPSLENG

C1 - E L E C - 2

RENG

.12

3

4

5

OVERHEAD PANEL

1. ELECTRIC PUMPS SWITCH (L, C 1 & 2 R)Pressed - Activates respective electric pump.

- Illuminates ON light.Released - Deactivates respective pump.

- Extinguishes ON light.PRESS - Illuminates when respective pump pressure is low.

2. SYS PRESS LIGHT (L, C, R - Amber)Illuminates when respective system pressure is low.

3. RESERVOIR LIGHT (L, C, R - Amber)Illuminates when respective reservoir pressure and / or quantity is low.

4. ENGINE PUMP SWITCH (L,R)PRESSED -Activates respective engine pump when engine is running.

- Illuminates ON light.Released - Deactivates respective engine pump.

- Extinguishes ON light.PRESS - Illuminates when respective pump pressure is low.

5. OVHT LIGHT (6- Amber)Illuminates when respective electric or engine pump is overheated.

AA

A A

AAAA

A A A A

A

AA

A

A

A

ELEC ELEC

Amber

Amber

Right Hydraulic Schematic


BLEED AIR

TO USINGCOMPONENTS

TO BRAKES

SUPPLYVALVES

STANDPIPE

PRESS

ON

OVHT

PRESS

ON

OVHT

ELEC

L ENG

SYSPRESS

RSVR

M

RIGHT

DISCH

1 2

.

.

..

.

ON

RESERVEBRAKES

A

A

A

A

A

A

.

Left Hydraulic System Schematic

BLEED AIR

R HYDE POWER

POWERTRANSFERUNIT

TO FLAPS/SLATSLANDING GEAR& STEERING

TO USINGCOMPONENTS

PRESS

ON

OVHT

PRESS

ON

OVHT

ELEC

L ENG


SYSPRESS

RSVR

M

LEFT

DISCH

1 2

..

.

..

.

Center Hydraulic Schematic


BLEED AIR

TO FLTCONTROLS

MM

PRESS

ON

PRESS

ON

OVHT OVHT

C1 - E L E C - 2

HYD PUMPS .

UNLKD

PRESS

RAM AIR TURB

SYSPRESS

RSVR

.

..

..

Normal Brake System Schematic


PARKBRAKE

PARKBRAKE

ALTNBRAKEPRESS

PARKBRAKEVALVE

RETURN

R HYD SYSNORMAL &RESERVESOURCES

METERINGVALVE

METERINGVALVE

ACCUMULATORISOLATIONVALVE

AUTOBRAKEACCUMULATOR

ANTI-SKID RETURNANTI-SKID RETURN

ANTI-SKIDCONTROLLER

ANTI-SKID

ANTI-SKID RETURN

.

..

.

.

RTO

DISARM

AUTOBRAKES

OFF

1

2

3

4

MAXAUTO

AUTOBRAKE A

A

BRAKESOURCE

L HYDSYSTEM

RETURN

ANTI-SKID

..

ALTNMETERINGVALVE

ALTNMETERINGVALVE

ALTNANTI-SKIDVALVE

ALTNSOURCESEL VALVE

ALTNANTI-SKIDVALVE

R HYDSYSTEM

ANTI-SKIDCONTROLLER

..

Alternate Brake System Schematic


Reserve Brakes Schematic

RIGHT HYD SYSTEMELECTRIC PUMP

TO USINGCOMPONENTS

TO NORMALBRAKES


M

RIGHTRESERVOIR

ON

RESERVEBRAKES

Engine Anti-Ice Schematic

VALVE

ON

VALVE

ON

L RWINGANTI-ICE

PNEUMATICMANIFOLD

HEATEDSLATS

TO RIGHT WINGANTI-ICE VALVE

ACCESSORY PANEL

OVERHEAD PANEL

WINGANTI-ICE

WING ANTI-ICEVALVE

AIR/GNDLOGIC

TIMER


Engine Anti-Ice Schematic

LP

HP

NOTE: RIGHT ENGINE SIMILAR

BLEED AIRMANIFOLD

VALVE

ON

VALVE

ON

L RENGINEANTI-ICE


ENGVALVE

SPARVALVE

FUELMEASURINGSYSTEM

ENGINEVALVE

AIR/GROUND SENSINGFLAP POSITION

ENG ANTI-ICE

SPAR VALVE

FUEL CONTROL R

RUN

CUT OFF

OIL

FUEL FEED

HP PUMP

LP PUMP

LP FUELFILTER

Engine Fuel System Schematic

ELECTRONICENGINECONTROL

2.2

FF


FUELMETERINGUNIT

TRIMMOTOR

FUEL HEAT

...

R OIL FILTERR ENG OIL PRESS

70 70

90 90

20 20

Engine Oil System (PW Engine) Schematic

GEAR BOXBEARINGS

R ENGINEOIL PRESSOR

SCAVENGEPUMP

OILCOOLERS

OILFILTER

FUEL

MAIN

OILRESERVOIR

AIROIL PRESS

OIL TEMP

OIL OFF


757 Schematics Layout 1

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