plano hidraulico 777f

7/23/2019 Plano Hidraulico 777F

1/4


2/4RENR8305VOL1

30Page,Color2

DRAIN

/

RETURN

LINE

HYDRAULIC

CIRCUIT

COLOR

DESCRIPTIONS

ELECTRICAL

CIRCUITS

STEERING

PUMP

CIRCUIT

BRAKE

CHARGING

CIRCUIT

PUMP

TRANSMISSION

AND

TORQUE

CONVERTER

SCAVENGE

PUMP

CIRCUIT

LOCK-

UP

CLUTCH

VALVE

PUMP

CIRCUIT

BRAKE

COOLING

HOIST

PUMP

CIRCUIT

PUMP

SUPPLY

LINE

TRANSMISSION

CHARGE

PUMP

CIRCUIT

HOIST

CYLINDERS

CIRCUIT

BRAKE

CIRCUIT

(FRONT

an

d

REAR)

TORQUE

CONVERTER

CHARGE

PUMP

CIRCUIT

SECONDARY

STEERING

PUMP

CIRCUIT

THISSCHE

MATICISFORTHE777FOFFHIGHWAYTRUCK

PART#:255-6188CHG04

Componentsare

showninstalledonafullyoperablemachinewiththekeyandengineoffandtransmission

shifterinneutral.

Refertotheapp

ropriateServiceManualforTroubleshooting,SpecificationsandSystemsOperations

8

6

5

4

3

2

1

ABCDEF

1

2

3

4

5

6

8

F E D C B A

7 7

LINEPATTERNS

Drain/ReturnLines

ComponentGroup

Pilot/LoadSensingPressure

PressureLine

Attachment

AirLine

CALLOUTS

Taps(Pressure,Sampling,Sensor)byletter

Componentsbynumber

YY

52

A

BD

E

59

8

FromTorqueConverter

Lock-upClutchPilot

(Volume2,

F-3)

ADJUSTERGP-SLACK

RIGHTREAR

LEFTREAR

M

P T

A

1 2 4 5

P1

T1

A1

PARKBRAKE

SOLENOID

BLEEDDOWN

SOLENOID

3

ECM

P2

LEFT

FRONT

RAISESOLENOID

LOWER,

FLOAT,

SNUBSOLENOID

BRAKECOOLIN

GRELIEF

LOWER

FLOAT

SNUB

HOLD

RAISE

RAISERELIEF

LOWERRELIEF

DUALSTAGE

SIGNAL

SPOOL

MAINRELIEF

DUMPSPOOL

7

10 1

0

28

27

11A

11A

9

20

13

14

5

2B

4B

15

35

54

11B

11B

23

24

22

1

4A

3

2A

28

27

12

21

FRONTBRAKES

WET

DRY

LEFT

FRONT

RIGHT

FRONT

RIGHT

FRONT

17

16

58

6

H

G

P

18

M

N

O L

K

D

E

F

29

C BA

J

FromTorqueConverter

Lock-upClutch.

(Volume2,

F-3)

FromTorqueConverter

Lock-upClutch.

(Volume2,

E-2)

FromTorqueConverter

(Volume2,

F-4)

SeeNoteA

SeeNoteA

SeeNoteA

19

47

26

14

I

A:Drybr

akeconfiguration

NO

TES


3/4


4/4RENR8305VOL2

30Page,Color2

DRAIN

/

RETURN

LINE

HYD

RAULIC

CIRCUIT

COLOR

DESCRIPTIONS

ELECTRICAL

CIRCUITS

STEERING

PUMP

CIRCUIT

BRAKE

CHARGING

CIRCUIT

PUMP

TRANSMISSION

AND

TORQUE

CONVERTER

SCAVENGE

PUMP

CIRCUIT

LOCK-

UP

CLUTCH

VALVE

PUMP

CIRCUIT

BRAKE

COOLING

HOIST

PUMP

CIRCUIT

PUMP

SUPPLY

LINE

TRANSMISSION

CHARGE

PUMP

CIRCUIT

HOIST

CYLINDERS

CIRCUIT

BRAKE

CIRCUIT

(FRONT

an

d

REAR)

TORQUE

CONVERTER

CHARGE

PUMP

CIRCUIT

SECONDARY

STEERING

PUMP

CIRCUIT

THISSCHEMATICIS

FORTHE777FOFFHIGHWAYTRUCK

PART#:255-6188CHG

04

Componentsareshowninstalledonafullyoperablemachinewiththekeyandengineoffand

transmissionshifterinneutral.

RefertotheappropriateServiceManualforTroubleshooting,SpecificationsandSystemsOperations

8

6

5

4

3

2

1

ABCDEF

1

2

3

4

5

6

8

F E D C B A

7 7

ECM

M

B A

C

LINEPATTERNS

Drain/ReturnLines

ComponentGroup

Pilot/LoadSensingPressure

PressureLine

Attachment

AirLine

CALLOUTS

Taps(Pressure,

Sampling,Sensor)byletter

Componentsbynumber

YY

52

D

E

A

B

LOADSENSESTEER

INGSYSTEM

POWERTRAIN:

TRANSMISS

IONANDTORQUECONVERTER

15

35

54

53

52

51

50

41

55

47

26

46

48

42

1

43

25

18

49

60

4445

S

39

30

38

31

61

40

Q

33

32

36

34

V

T

U

R

W

HYDRAULIC

CONTROLS

TORQUE

CONVERTER

TRANSMISSION

LOCKUP

VALVE

LOCK-UPCLUTCH

PRESSURE

TOBRAKE

COOLING

TOBRAKE

COOLING

ToTractionControlValve

ToHoistPilot

SignalResolver

ToRockfordFan

ClutchControl

(Attachment)

37

56

57

XY

plano hidraulico 777f

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