plano hidraulico 777f
TRANSCRIPT
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7/23/2019 Plano Hidraulico 777F
1/4
-
7/23/2019 Plano Hidraulico 777F
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
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7/23/2019 Plano Hidraulico 777F
3/4
-
7/23/2019 Plano Hidraulico 777F
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