unidad 5 - plano hidráulico
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INTERACTIVE SCHEMATIC
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Cover Page
Tables
Schematic
Machine Views
Component
Connector
Chassis View
Cab View
Engine View
Features
Options
Bookmarks X
EC-C3
EC-C2 E-C60
EC-C1
E-C61
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SCHEMATIC SYMBOLS AND DEFINITIONS
Spring
Control
Valves
Restriction Line Restriction
(Fixed)
2-Section
Pump
MAIN AUX.
Spring
(Adjustable)
Variability
Line Restriction
(Variable)
Pressure
Compensation
Pump: Variable and
Pressure Compensated
Hydraulic Pneumatic
Energy Triangles
Fluid
Conditioner
Attachment
Pump
or Motor
BASIC HYDRAULIC
COMPONENT SYMBOLS
Line Restriction
Variable and Pressure
Compensated
Pressure Temperature Flow
MEASUREMENT
Unidirectional Bidirectional
ROTATING SHAFTS
One Position Two Position Three Position
Two-way Three-Way Four-Way
ENVELOPES
PORTS
CONTROL
Basic
SymbolSpring
Loaded
Normal Position
A B
P T
A B
P T
Shifted Position Infinite Position
Shuttle Pilot
Controlled
VALVES
CHECK
Solenoid
or Manual
Solenoid
and Pilot
Solenoid and
Pilot or ManualSolenoid Servo Thermal Detent
COMBINATION CONTROLS
External Return Internal Return
Simplified CompleteInternal
Supply Pressure
RELEASED PRESSURE
REMOTE SUPPLY PRESSURE
PILOT CONTROL
Spring Loaded Gas Charged
ACCUMULATORS
Crossing Joining
LINES
Double ActingSingle Acting
CYLINDERSUnidirectional
Bidirectional
FIXED DISPLACEMENT
VARIABLE DISPLACEMENT
NON- COMPENSATED
PUMPS
Unidirectional
Bidirectional
Unidirectional
Bidirectional
FIXED DISPLACEMENT
VARIABLE DISPLACEMENT
NON- COMPENSATED
MOTORS
Unidirectional
Bidirectional
Two
Position
Infinite
Positioning
FLOW IN ONE
DIRECTION
FLOW ALLOWED IN
EITHER DIRECTION
Three
Position
CROSS
FLOW
PARALLEL
FLOW
INTERNAL PASSAGEWAYS
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KENR8398-06June 2013
793F and 793F WTR OEM
Hydraulic System
793F:SND1-UP
SSP1-UP
793F WTR OEM:SXP1-UP
Off-Highway Truck
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COMPONENT TABLE
Description
Part
Number
Machine
Location
Schematic
Location
Accumulator Gp - Brake (ACC1) 291-1546 1 I-5
Accumulator Gp - Brake (ACC2) 291-1546 2 I-14
Accumulator Gp - Steering 308-2856 3 F-11
Breather 157-7911 4 D-7
Connector - Orifice 311-6676 6 G-4, G-5
Cylinder Gp - Telescoping, Hoist 295-5708 7 H-13
Filter - Oil, Adv Eff., Breather 4T-6788 8 D-5
Filter Gp - Case Drain 290-2569 9 D-7
Filter Gp - Fan / Steering Return 339-9706 10 A-5
Filter Gp - Oil, Brake 290-2567 11 F-5
Filter Gp - Oil, Hoist / Brk Cooling 339-9702 12 I-9
Fitting - Orifice 8X-7851 13 G-4
Fitting - Orifice 8X-7851 14 F-8
Fitting - Orifice 8X-7851 15 E-11
Motor Gp - Fan 240-7790 16 E-9
Pump / Motor Gp - Brake Release 5T-1060 17 I-8
Pump Gp - Fan / Steering 291-7263 18 B-9
Pump Gp - Hoist / Brake 310-4846 19 F-6
Pump Gp - Metering (HMU) 9T-1318 20 C-2
Screen - Pmp Brng Flushing Return 247-8298 21 C-7
Screen Gp - Hoist Lines 6E-5472 22 H-10
Slack Adjustor Gp - Front 205-0560 23 G-2
Slack Adjustor Gp - Rear 205-0560 24 G-14
Valve Gp - Check 332-7350 25 C-7
Valve Gp - Check 6E-4701 26 I-5
Valve Gp - Check, Brk Rel Pump 123-4750 27 I-8
Valve Gp - Check, Brk Rel, El Pump 123-4750 28 I-14
Valve Gp - Cntrl, Hoist / Brk Cooling 356-5705 29 I-12
Valve Gp - Makeup 183-7170 30 E-9
Valve Gp - Sol / Mnfld 198-6577 31 F-8
Valve Gp - Sol / Rlf, Str Acc. 272-9849 32 E-11
Valve Gp - Steering 9T-8931 33 F-3
Control Gp - Foot Brake 315-5037 34 I-13
Cylinder Gp - Steering 9T-8912 35 F-3
Filter Gp - Oil, RAX 333-6434 36 G-13
Manifold Gp - Control, RAX 299-3258 37 F-12
Motor Gp - Brake Cooling 198-6041 38 C-4
Motor Gp - RAX 202-9940 39 D-12
Pump Gp - Brake Cooling 197-8885 40 C-5
Pump Gp - RAX 341-4837 41 D-12
Screen As - Hydr. Oil Cooler 149-2754 42 I-9
Tank Gp - Hydraulic 288-5701 43 B-5
Valve / Mtg Gp - Cntrl, Brks, Std Whl 371-4190 44 H-4
Valve / Mtg Gp - Cntrl, Brks, XL Whl 371-4191 45 H-3
Valve Gp - Relief, Brake Oil Cooler 6E-5855 46 D-5
Valve Gp - Traction Control 222-4744 47 I-7
Accumulator Gp - Steering (PED) 348-9270 48 F-11
Cooler Gp - RAX Oil Cooler 320-8196 49
Motor Gp - RAX Oil Cooler Fan 307-1504 50
Plug As - Rear Axle Cooler 242-7114 51 D-8
Valve Gp - Press. Rdc, Rad Fan Cntrl 389-1181 52 D-9
Core As - Oil Cooler, Brake 290-2729 53 J-8
Core As - Oil Cooler, Brake 336-9641 54 J-9
Core Gp - Oil Cooler, Steering 199-6683 55 A-8
Sensor Gp - Press., Brake Pump 221-3405 56 I-5
Sensor Gp - Press., Brk Acc. (ACC1) 221-3405 57 I-5
Sensor Gp - Press., Brk Acc. (ACC2) 221-3405 58 I-13
Sensor Gp - Press., Differential Oil 221-3415 59 F-12
Sensor Gp - Press., Rr Brk Oil, LH 221-3410 60 I-7
Sensor Gp - Press., Rr Brk Oil, RH 221-3410 61 E-9
Orifice
Orifice
219-8800
219-8800
69
70
I-5
I-4
Mechanical Drive (Hydraulic Arrangement 278-8418)
Attachments
Misc. Ref.
Component Locations
Description
Part
Number
Machine
Location
Schematic
Location
Component Locations
G-11
G-11
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TAP TABLE
DescriptionTap
Number
Schematic
Location
Brake Pump Filter Outlet Pressure R F-5
Brake Pump Pressure N F-6Case Drain Return Filter Pressure P2 C-7
Front Slack Adjuster Pressure I1 G-1
Front, Left Parking Brake Release Press. J1 J-1
Front, Right Parking Brake Release Press. J2 D-1
Hoist Control Pilot Pressure L1 H-11
Hoist Control Pilot Pressure L2 G-11
Hoist Pump 1 Pressure M1 F-6
Hoist Pump 2 Pressure M2 F-6
Left, Front Wheel, Brake Cooling Input Press. K1 J-2
Left, Front Wheel, Brake Cooling Output Press. K2 I-1
Left, Rear Wheel, Brake Cooling Input Press. K5 J-13
Tap Locations
Pressure, Sampling and Sensor
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K
ENR8398-06
36Page,(Dimensions:48inchesx35inches)
Componentsareshowni nstalledona fully operablemachinewith thekey andengineoff, transmissionshifter
inneutraland withparkingbrake set.
Refertothe appropriateServiceManual forTroubleshooting, Specifications andSystems Operations.
SCHEMATICPART NUMBER: 278-8439, CHANGE: 01, VERSION: -
MEDIA NUMBER: KENR8398-06
793F AND793F WTROEM OFF-HIGHWAY TRUCKHYDRAULICSYSTEMSCHEMATIC
A
B
C
D
E
F
1234567891011121314
G
H
I
J
1234567891011121314
A
B
C
D
E
F
G
H
I
J
LINE PATTERNS
Drain/ ReturnLines
Component Group
AirLine
Pilot / LoadSensingPressure
PressureLine
CALLOUTS
Taps (Pressure, Sampling, Sensor-by letter)YY
(52)VALVE GP- CONTROL
138-1234
Callout Number(MachineLocationfrom
Component LocationsTable)
Component
Name
Part Number
HYDRAULICCIRCUIT COLORDESCRIPTIONS
BRAKE RELEASE PUMP ANDCIRCUIT
DRAIN/ BRAKE COOLING
HOIST PUMP ANDCIRCUIT
STEERING CIRCUIT
SUPPLY LINE
FANPUMP ANDCIRCUIT
BRAKE PUMP ANDCIRCUIT
SUPPLY PUMP ANDCIRCUIT
PARKING BRAKE CIRCUIT
REARAXLE LUBE PUMP ANDCIRCUIT
DRAIN/ RETURNLINE
HIGHPRESS.
RLF
LOW PRESS.
RLF
DUALSTAGE
SIGNALSPOOL
SIGNALORIFICE #2
SIGNALORIFICE #1
ORIFICE
COUNTERBALANCEVALVE CARTRIDGE
RODENDVENTSLOTACROSS
STEM
SOS
LEFT REAR
RIGHT REAR
LEFT FRONT
RIGHT FRONT
MAINRELIEFDUMPSPOOL
AP
B
SW
M1U B
REARAXLE BANJO HOUSING SUMPSEE POWERTRAINSCHEMATIC
FINAL
DRIVEDIFFERENTIAL
HP
P
LS HT
T
EF
RL
CRCL
BRAKE SYSTEM, STEER AND FAN, HOIST AND BRAKE COOLING, MECHANICAL DRIVE: RM757 and RM952
M
TO
FAN/ STEERING
PUMP
ACC2
BCD
HOIST
TCS
PS2
ACC1
PS1
RAX
T2
TANK
PB
PS5 R SUPPLY PS4 F
FSB
T1
TSB
PS3
P
T
A
SV3
FL1PR1
SQ1
RV1
LE1
SV2
OR1
CV1 CV2
PD1
0R5 0R6
HF1 SV1
0 R2 0 R9
0R3 0R7
PD2
SH1
HF2 PD3
PLUG1
HF3
SH2
0R4 0R8
MECHANICAL
PUMPDRIVE
T 1 T 2 R G2 Ma Mb B G1 R T 2 T 1
Qmin Qmax
M1 S M1
Qmax Qmin
A U2SL
L1U1
TO
MECHANICAL
DRIVE
RAISE HO L D SNUB F L O AT L O WERSpoolsections by color=
K2
B
I2
K6
J3
K8 J4
K7
K5
P2
H
F
K4
K3
I1
K1
Q
P1
S1
S2
P3
D
R
J2
J1
G
E
A
L2
L1
N M1 M2
C
(1)ACCUMULATORGPBRAKE (ACC1)
291-1546(2)ACCUMULATORGPBRAKE (ACC2)291-1546
(4)BREATHER157-7911
(7)CYLINDERGPTELESCOPING
HOIST: 295-5708
(8)FILTEROILBREATHER: 4T-6788
(9)FILTERCASE DRAIN
290-2569
(10)FILTERGPFAN/ STEERRETURN339-9706
(11)FILTERGPOILBRAKE290-2567
(12)FILTERGP- OILHOIST/ BRK COOLING
339-9702
(13)FITTING ORIFICEA.C. ONLY: 8X-7851
(16)MOTORGPFAN: 240-7790
(17)PUMP/ MOTORGPBRAKE RELEASE5T-1060
(18)PUMPGPFAN/ STEERING
291-7263
(19)PUMPGPHOIST/ BRAKE310-4846
(20)PUMPGPMETERING (HMU)
9T-1318
(21)SCREEN-PUMPBEARINGFLUSHING RET.:247-8298
(22)SCREENGPHOISTLINES6E-5472
(23)SLACK ADJ GPFRONT: 205-0560
(24)SLACK ADJ GPREAR: 205-0560
(25)VALVE GPCHECK: 332-7350
(26)VALVE GPCHECK: 6E-4701
(27)VALVE GPCHECK BRK REL
ELPUMP: 123-4750
(28)VALVE GP-CHECKBRK REL: 123-4750
(29)VALVE GP-CONTROLHOIST/ BRK COOLING:
247-1437
(30)VALVE GPMAKEUP: 183-7170
(31)VALVE GPSOL/ MNFLD198-6577
(32)VALVE GP-SOL/ RLFSTRACC.: 272-9849
(33)VALVE GPSTEERING9T-8931
(6)CONNECTORORIFICE: 311-6676
(34)CONTROLGPFOOTBRAKE315-5037
(35)CYLINDERGP-STEERING9T-8912, 205-0560
(36)FILTERGPOIL, RAX: 333-6434
(37)MANIFOLDGPCONTROLRAX:299-3258
(38)MOTORGP-
BRAKE COOLING198-6041
(39)MOTORGP-RAX: 202-9940
(40)PUMPGPBRAKE COOLING
197-8885
(41)PUMPGP-RAX: 214-1555
(42)SCREENASHYDR. OILCOOLER149-2754(ExtraRetardingOnly)
(43)TANK GPHYDRAULIC
288-5701
(44)VALVE / MTG GP- CONTROLBRAKES(STDWHL): 285-5630(45)VALVE / MTG GP- CONTROLBRAKES(XLWHL)NOTSHOWN: 283-9559
(46)VALVE GPRELIEF BRAKE
OILCOOLER6E-5855
(47)VALVE GPTRACTIONCONTROL
222-4744
ACCUMULATORGPSTEERING (PED)
(48)308-3556, (3)308-2856(51)PLUG AS
REARAXLE CLR242-7114
(52)VALVE GP-PRESS RDC. RAD.FANCNTRL: 226-0835
(53)CORE AS -OILCOOLERBRAKE: 290-2729(ExtraRetardingOnly)
(54)CORE AS -OILCOOLER
BRAKE: 336-9641
(55)CORE GP-OILCOOLERSTEERING: 199-6683
(56)SENSORGPPRESS. BRAKE PUMP221-3405
(57)SENSORGP-PRESS. BRK (Acc1)
221-3405(69)ADAPTER319-8800
(58)SENSORGPPRESS. BRK (ACC2)221-3405
(59)SENSORGPPRESS. DIFF. OIL221-3415
(60)SENSORGPPRESS. RRBRK OIL, LH221-3410
(65)SENSORGPPRESS. RRBRK OIL, RH
221-3410
(62)SENSORGPPRESS. STEERACC.
221-3405
(63)SENSORGPPRESS. STEERACC.221-3405
(64)SENSORGP-SPEEDCOOLING PUMPDRI VE186-0131
(61)SENSORGPSPEED, FAN: 186-0131
(68)SWITCHAS -PRESS.SERV. BRK (REAR)
A.C. ONLY: 128-5091
(67)SWITCHAS -PRESS.SERV. BRK (FRNT)128-5091
(14)FITTINGORIFICE 8X-7851
(15)FITTINGORIFICE: 8X-7851
(50)MOTORGPRAX OILCLRFAN
307-1504
(49)COOLERGP-RAX OILCLR
320-8196
(6)CONNECTORORIFICE: 311-6676(13)FITTING ORIFICE
A.C. ONLY: 8X-7851
(70)ADAPTER319-8800
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TRACTION CONTROL
Left Side, Center of Chassis, Inside of Frame
S2
S1
67
61
60
47
VIEW ALL CALLOUTS
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STEERING CONTROL
35
35
31
20
14
VIEW ALL CALLOUTS
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SERVICE AND PARKING BRAKES
J2J1
I1
34
23
21
VIEW ALL CALLOUTS
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PUMPS AND DRIVE
Brake
Pump
FanPump
SteeringPump
Hoist
Pump
Pump
DriveP3
M2 M1
19
18 N
VIEW ALL CALLOUTS
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HYDRAULIC OIL TANK
8
4
VIEW ALL CALLOUTS
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HOIST CONTROL
L2
L1
29
22
VIEW ALL CALLOUTS
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FAN CIRCUIT
55
10
VIEW ALL CALLOUTS
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BRAKE COOLING
K4
K3K2
K1
54
53
46
VIEW ALL CALLOUTS
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BRAKE CONTROL
69 57 5645 44
28
26
H
G
6
2
1
VIEW ALL CALLOUTS
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RAX OIL COOLER
63
59
51
50 49
4139 3736
31 Q
D
VIEW ALL CALLOUTS
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