793D(neumatico)
2
RENR9866 20 Page RENR9866 October 2005 793D Off-Highway Truck Air System FDB1-UP © 2005 Caterpillar All Rights Reserved Printed in U.S.A. Description Part Number Machine Location Schematic Location Air Gun - Clean Out 156-0927 C-3 , E-6 1 Compressor Gp - Air 160-9820 D-4 , D-10 2 Cylinder Gp - Front Master 8W-3406 C-1 , C-8 3 Cylinder Gp - Rear Master 8W-3405 C-1 , C-8 4 Dryer As - Air 101-8352 D-3 , D-10 5 Governor As 4N-9680 D-4 , D-10 6 Reservoir - Air (Main) 5T-1049 E-3 , D-8 8 Reservoir - Air (Secondary) 162-7880 B-2 , C-6 9 Sensor Gp - Air Pressure 141-5746 D-2 , D-8 10 Switch As - Sec & Park Brake Press D-2 , C-7 11 Switch As - Sec & Park Lockout Press B-3 , B-7 12 Switch As - Service Brake 3E-2034 D-2 , D-10 13 Valve As - Park & Secondary 213-1081 C-3 , C-6 14 Valve As - Service Brake Retract 236-6570 B-4 , C-10 15 Valve Gp - Air Horn Solenoid 7T-9074 C-3 , E-6 16 Valve Gp - Air Start Solenoid 7D-6081 D-2 , D-7 17 Valve Gp - Air Starter Relay 115-9190 E-2 , D-7 18 Valve Gp - Auto Lube Solenoid 7D-6081 C-3 , E-7 19 Valve Gp - Diverter Solenoid 251-7763 D-1 , B-5 20 Valve Gp - Diverter Lockout Sol 188-3580 D-2 , B-6 21 Valve Gp - Drain (Main Reservoir) 7X-7655 E-3 , D-8 22 Valve Gp - Drain (Sec Reservoir) 7X-7655 D-2 , D-6 23 Valve Gp - Engine Waste Gate Sol 7T-9074 D-2 , D-5 24 Valve Gp - Inversion (Sec & Park Brk) 172-6232 B-3 , C-6 25 Valve Gp - Park Brake SW (Detented) 128-4971 B-3 , B-7 26 Valve Gp - Pressure Protect 2G-8815 C-3 , D-7 27 Valve Gp - Regulator (Waste Gate) 8D-4755 D-2 , D-5 28 Valve Gp - Relay (Master Cyl) 159-5149 D-1 , C-9 29 Valve Gp - Sec & Park Brake Control 149-4133 C-2 , C-7 30 Valve Gp - Sec & Park Brake Lock Sol 188-3580 D-2 , B-7 31 Valve Gp - Sec Foot Air Brake 247-1293 B-4 , C-6 32 Valve Gp - Service Brake 247-1292 C-4 , C-10 33 Valve Gp - Shuttle 6D-3781 C-4 , C-10 34 Component Locations 205-4824 170-1133 4W-6633 D-2 , D-7 7 Motor Gp - Air Start TDI Turbine Ingersol Turbine Ingersol Vane ONE POSITION TWO POSITION THREE POSITION VENTED PRESSURIZED RETURN ABOVE FLUID LEVEL RETURN BELOW FLUID LEVEL LINES CROSSING LINES JOINING TWO-WAY THREE-WAY FOUR-WAY SPRING CONTROL VALVES RESTRICTION LINE RESTRICTION (FIXED) 2-SECTION PUMP MAIN AUX. SPRING (ADJUSTABLE) VARIABILITY LINE RESTRICTION (VARIABLE) LINE RESTRICTION VARIABLE and PRESSURE COMPENSATED PRESSURE COMPENSATION PUMP: VARIABLE and PRESSURE COMPENSATED ENERGY TRIANGLES HYDRAULIC PNEUMATIC MEASUREMENT PRESSURE TEMPERATURE FLOW ROTATING SHAFTS UNIDIRECTIONAL BIDIRECTIONAL PUSH-PULL LEVER PEDAL GENERAL MANUAL PUSH BUTTON SPRING MANUAL CONTROL SYMBOLS HYDRAULIC MOTORS FIXED DISPLACEMENT VARIABLE DISPLACEMENT NON-COMPENSATED UNIDIRECTIONAL BIDIRECTIONAL HYDRAULIC PUMPS FLUID STORAGE RESERVOIRS CROSSING AND JOINING LINES VALVE ENVELOPES VALVE PORTS BASIC COMPONENT SYMBOLS FLUID CONDITIONER PUMP or MOTOR FLUID POWER SYMBOLS FIXED DISPLACEMENT VARIABLE DISPLACEMENT NON-COMPENSATED UNIDIRECTIONAL BIDIRECTIONAL VALVES PILOT CONTROL SYMBOLS RELEASED PRESSURE EXTERNAL RETURN INTERNAL RETURN REMOTE SUPPLY PRESSURE SIMPLIFIED COMPLETE INTERNAL SUPPLY PRESSURE ACCUMULATORS SPRING LOADED GAS CHARGED SOLENOID or MANUAL SOLENOID and PILOT SOLENOID and PILOT or MANUAL COMBINATION CONTROLS SOLENOID SERVO THERMAL DETENT HYDRAULIC AND PNEUMATIC CYLINDERS DOUBLE ACTING SINGLE ACTING BASIC SYMBOL SPRING LOADED CHECK VALVES TWO POSITION INFINITE POSITIONING FLOW IN ONE DIRECTION FLOW ALLOWED IN EITHER DIRECTION THREE POSITION CROSS FLOW PARALLEL FLOW INTERNAL PASSAGEWAYS NORMAL POSITION AB PT AB PT SHIFTED POSITION INFINITE POSITION CONTROL VALVES ATTACHMENT MANUAL SHUTOFF SHUTTLE PILOT CONTROLLED Hydraulic & Pneumatic Symbols (Electrical) Electrical Symbols Table 325-AG135 PK-14 Circuit Identification Number Wire Color Wire Gauge Harness identification code This example indicates wire 135 in harness "AG". 325-PK-14 Wire Gauge Wire Color Circuit Number Identification Wire Number Identification Codes Current Standard Previous Standard Electrical Schematic Example Hydraulic Schematic Example 325-PK Wire Color Circuit Number Identification B A Wire Wire (EXAMPLE VALVE) Current Standard Transducer (Fluid) Transducer (Gas / Air) G Generator Electrical Wire Pressure Switch M Electric Motor Pressure Switch (Adjustable) Temperature Switch T Pressure Symbol Temperature Symbol Level Symbol Flow Symbol Electrical Symbols (Electrical) 242-8903 242-8903 Description Media Number Parts Book: SEBP3976 Air System & Brake SOTA RENR8330 Steering System RENR8336 Fan Drive Hydraulic System RENR8341 Traction Control System SENR2986 Schematic RENR8333 Schematic RENR8331 Hydraulic System: Related Manuals Parts Manual: Machine System: Electrical System: FRONT VIEW FRONT VIEW REAR VIEW REAR VIEW LEFT SIDE VIEW 28 24 1 7 18 17 17 18 7 26 14 9 12 23 11 31 25 15 34 32 33 15 23 9 25 16 19 23 10 13 21 27 2 6 5 8 30 4 3 29 8 22 30 4 3 5 2 6 29 20 1 3 4 5 7 6 2 CAB WALL R.H. PLATFORM GP OPERATORS COMPARTMENT FRAME AS. OPERATORS COMPARTMENT PORT NO.2 CONTROL GP - BRAKE K CAB LINES GP-AIR PORT 2 L.H. FRAME AS. E INSIDE VIEW OF CAB JUNCTION PLATE CAB AIR SYSTEM AIR START ATTACHMENTS CHASSIS AIR SYSTEM ENGINE 6 ARC SIGNAL 5 SERVICE/RETARDER/ARC SIGNAL TO DIVERTER 4 SERVICE/RETARDER SIGNAL 3 SECONDARY/PARK SIGNAL 2 PROTECTED AIR 1 CAB SUPPLY PORT CAB PORT FUNCTION 7 LUBE SYSTEM
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Transcript of 793D(neumatico)
RENR9866
20Page
RENR9866October 2005
793D Off-Highway TruckAir SystemFDB1-UP
©2005 CaterpillarAll Rights Reserved
Printed in U.S.A.
Description PartNumber
MachineLocation
SchematicLocation
Air Gun - Clean Out 156-0927 C-3 , E-6 1Compressor Gp - Air 160-9820 D-4 , D-10 2Cylinder Gp - Front Master 8W-3406 C-1 , C-8 3Cylinder Gp - Rear Master 8W-3405 C-1 , C-8 4Dryer As - Air 101-8352 D-3 , D-10 5Governor As 4N-9680 D-4 , D-10 6
Reservoir - Air (Main) 5T-1049 E-3 , D-8 8Reservoir - Air (Secondary) 162-7880 B-2 , C-6 9Sensor Gp - Air Pressure 141-5746 D-2 , D-8 10Switch As - Sec & Park Brake Press D-2 , C-7 11Switch As - Sec & Park Lockout Press B-3 , B-7 12Switch As - Service Brake 3E-2034 D-2 , D-10 13Valve As - Park & Secondary 213-1081 C-3 , C-6 14Valve As - Service Brake Retract 236-6570 B-4 , C-10 15Valve Gp - Air Horn Solenoid 7T-9074 C-3 , E-6 16Valve Gp - Air Start Solenoid 7D-6081 D-2 , D-7 17Valve Gp - Air Starter Relay 115-9190 E-2 , D-7 18Valve Gp - Auto Lube Solenoid 7D-6081 C-3 , E-7 19Valve Gp - Diverter Solenoid 251-7763 D-1 , B-5 20Valve Gp - Diverter Lockout Sol 188-3580 D-2 , B-6 21Valve Gp - Drain (Main Reservoir) 7X-7655 E-3 , D-8 22Valve Gp - Drain (Sec Reservoir) 7X-7655 D-2 , D-6 23Valve Gp - Engine Waste Gate Sol 7T-9074 D-2 , D-5 24Valve Gp - Inversion (Sec & Park Brk) 172-6232 B-3 , C-6 25Valve Gp - Park Brake SW (Detented) 128-4971 B-3 , B-7 26Valve Gp - Pressure Protect 2G-8815 C-3 , D-7 27Valve Gp - Regulator (Waste Gate) 8D-4755 D-2 , D-5 28Valve Gp - Relay (Master Cyl) 159-5149 D-1 , C-9 29Valve Gp - Sec & Park Brake Control 149-4133 C-2 , C-7 30Valve Gp - Sec & Park Brake Lock Sol 188-3580 D-2 , B-7 31Valve Gp - Sec Foot Air Brake 247-1293 B-4 , C-6 32Valve Gp - Service Brake 247-1292 C-4 , C-10 33Valve Gp - Shuttle 6D-3781 C-4 , C-10 34
Component Locations
205-4824170-11334W-6633
D-2 , D-7 7Motor Gp - Air Start TDI Turbine
Ingersol TurbineIngersol Vane ONE POSITION TWO POSITION THREE POSITION
VENTED PRESSURIZED RETURN ABOVE FLUID LEVEL RETURN BELOW FLUID LEVEL
LINES CROSSING LINES JOINING
TWO-WAY THREE-WAY FOUR-WAY
SPRING CONTROL VALVES RESTRICTION LINE RESTRICTION(FIXED)
2-SECTION PUMP
MAIN AUX.
SPRING(ADJUSTABLE)
VARIABILITY LINE RESTRICTION(VARIABLE)
LINE RESTRICTIONVARIABLE and PRESSURE
COMPENSATED
PRESSURECOMPENSATION
PUMP: VARIABLE andPRESSURE COMPENSATED
ENERGY TRIANGLESHYDRAULIC PNEUMATIC
MEASUREMENT
PRESSURE TEMPERATURE FLOW
ROTATING SHAFTS
UNIDIRECTIONAL BIDIRECTIONAL
PUSH-PULL LEVER PEDALGENERAL MANUAL PUSH BUTTON SPRING
MANUAL CONTROL SYMBOLS
HYDRAULIC MOTORS
FIXEDDISPLACEMENT
VARIABLE DISPLACEMENTNON-COMPENSATED
UNIDIRECTIONAL
BIDIRECTIONAL
HYDRAULIC PUMPS
FLUID STORAGE RESERVOIRS
CROSSING AND JOINING LINES
VALVE ENVELOPES VALVE PORTS
BASIC COMPONENT SYMBOLS
FLUID CONDITIONERPUMP or MOTOR
FLUID POWER SYMBOLS
FIXEDDISPLACEMENT
VARIABLE DISPLACEMENTNON-COMPENSATED
UNIDIRECTIONAL
BIDIRECTIONAL
VALVES
PILOT CONTROL SYMBOLSRELEASED PRESSURE
EXTERNAL RETURN INTERNAL RETURN
REMOTE SUPPLY PRESSURE
SIMPLIFIED COMPLETE INTERNALSUPPLY PRESSURE
ACCUMULATORS
SPRING LOADED GAS CHARGED
SOLENOIDor MANUAL
SOLENOIDand PILOT
SOLENOID andPILOT or MANUAL
COMBINATION CONTROLS
SOLENOID SERVO THERMAL DETENT
HYDRAULIC AND PNEUMATIC CYLINDERS
DOUBLE ACTINGSINGLE ACTING
BASICSYMBOL
SPRINGLOADED
CHECK VALVES
TWOPOSITION
INFINITEPOSITIONING
FLOW IN ONEDIRECTION
FLOW ALLOWED INEITHER DIRECTION
THREEPOSITION
CROSSFLOW
PARALLELFLOW
INTERNAL PASSAGEWAYS
NORMAL POSITION
A B
P T
A B
P TSHIFTED POSITION INFINITE POSITION
CONTROL VALVES
ATTACHMENT
MANUAL SHUTOFF
SHUTTLE PILOTCONTROLLED
Hydraulic & Pneumatic Symbols (Electrical)
Electrical Symbols Table
325-AG135 PK-14
Circuit IdentificationNumber
Wire Color Wire Gauge
Harness identification codeThis example indicateswire 135 in harness "AG".
325-PK-14
Wire Gauge
Wire Color
Circuit NumberIdentification
Wire Number Identification Codes
Current Standard
Previous Standard
Electrical Schematic Example Hydraulic Schematic Example
325-PK
Wire ColorCircuit NumberIdentification
B A
Wire
Wire
(EXAMPLE VALVE)
Current Standard
Transducer(Fluid)
Transducer(Gas / Air)
G
Generator
Electrical WirePressure Switch
MElectric Motor
Pressure Switch(Adjustable)
Temperature Switch
T
PressureSymbol
TemperatureSymbol
LevelSymbol
FlowSymbol
Electrical Symbols (Electrical)
242-8903242-8903
Description Media Number
Parts Book: SEBP3976
Air System & Brake SOTA RENR8330Steering System RENR8336Fan Drive Hydraulic System RENR8341Traction Control System SENR2986
Schematic RENR8333
Schematic RENR8331Hydraulic System:
Related Manuals
Parts Manual:
Machine System:
Electrical System:
FRONT VIEW
FRONTVIEW
REARVIEW
REARVIEW
LEFT SIDE VIEW
28
24
1
7
18
17
17
187
26
14
912
23
11
31
2515
34
32
33
15
23
9
25 16
19
23
10
13
21
27
2
6
5
8
30
4 329
8
22
30
4
3
5
2
6
29
20
1
3
4
5
7
6
2
CAB WALL
R.H. PLATFORM GP
OPERATORS COMPARTMENT
FRAME AS.
OPERATORS COMPARTMENT
PORT NO.2
CONTROL GP - BRAKE K
CABLINES GP-AIR
PORT 2
L.H. FRAME AS.
E
INSIDE VIEW OF CAB JUNCTION PLATE
CAB AIR SYSTEM
AIR START
ATTACHMENTS
CHASSIS AIR SYSTEM
ENGINE
6 ARC SIGNAL
5 SERVICE/RETARDER/ARCSIGNAL TO DIVERTER
4 SERVICE/RETARDER SIGNAL
3 SECONDARY/PARK SIGNAL
2 PROTECTED AIR
1 CAB SUPPLY
PORT
CAB PORT FUNCTION
7 LUBE SYSTEM
RENR9866
20Page,Color2
AIR CIRCUIT COLOR DESCRIPTIONSAIR COMPRESSOR OUTPUT
AIR HORN CICUIT
AUTO LUBE CIRCUIT
PILOT PUMP OUTPUT
CLEAN OUT CIRCUIT
AIR START MOTOR CIRCUIT
SECONDARY & PARKING BRAKE CONTROL CIRCUIT
DIVERTER CONTROL CIRCUITSERVICE BRAKE CONTROL CIRCUIT
ENGINE WASTE GATE CIRCUIT
AIR CIRCUIT COLOR DESCRIPTIONSAIR COMPRESSOR OUTPUT
AIR HORN CICUIT
AUTO LUBE CIRCUIT
PILOT PUMP OUTPUT
CLEAN OUT CIRCUIT
AIR START MOTOR CIRCUIT
SECONDARY & PARKING BRAKE CONTROL CIRCUIT
DIVERTER CONTROL CIRCUITSERVICE BRAKE CONTROL CIRCUIT
ENGINE WASTE GATE CIRCUIT
LINE PATTERNS
Component Group
Pilot / Load Sensing Pressure
Pressure Line
Attachment
678910
678910
A
B
C
D
E
F
A
C
D
E
F
B
12345
12345
VALVE GPDIVERTERLOCKOUTSOL188-3580
VALVE GPINVERSION(SEC & PARKBRAKE)172-6232
VALVE ASYPARK & SEC213-1081
SSWWIITTCCHH AASSSSEECC && PPAARRKKLLOOCCKKOOUUTTPPRREESSSSUURREEXXXXXX--XXXXXXXX
VALVE GPSEC & PARKBRAKE CONTROL149-4133
VALVE GPDRAIN(SEC RESV)7X-7655
TRUCK RUNNING. PARKING BRAKE APPLIED.
VALVE GPDRAIN(MAIN RESV)7X-7655
NOTE A:
SWITCH ASSERVICE BRAKE3E-2034
VALVE GPSHUTTLE6D-3781
GOVERNOR AS4N-9680
VALVE GPSERVICE BRAKE247-1292
SENSOR GPAIR PRESSURE141-5746
RESERVOIRAIR (MAIN)5T-1049
DRYER ASYAIR101-8325
COMPRESSOR GPAIR160-9820
Y Y
SEE HYDRAULIC SYSTEM SCHEMATIC
4
3
1
2
2
3
1
Y
12
10
3
2 1
CYLINDER GPREAR MASTER8W-3405
XXX
VALVE GPRELAY159-5149
MAINRESERVOIR
X
Y
EXTERNALAIR SUPPLY
VALVE ASSERVICE BRAKERETRACT236-6570
ATTACHMENT
ATTACHMENT
2
1
4
3
21
2
1
1210
3
2
1
2
1
1210
3
2
SEE HYDRAULIC SYSTEM SCHEMATIC
AIR SEAT(BUDDY)
ENGINEWASTE GATE
3
2
AUTOLUBE
1
12
10
SECONDARYRESERVOIR
1
1
2
2
3
3
2
1
X
Y
AIRHORN
AIRSEAT
1
VALVE GPINVERSION(SEC & PARKBRAKE)172-6232
VALVE GPPARK BRAKE SW(DETENTED)128-4971
SWITCH ASSEC & PARKLOCKOUTPRESSURE242-8903
RESERVOIRAIR (SEC)162-7880
VALVE GPSEC & PARKBRAKE CONTROL149-4133
VALVE GPSEC FOOTAIR BRAKE247-1293
VALVE GPPRESS PROTECT2G-8815
VALVE GPREGULATOR(WASTE GATE)8D-4755
AIR GUN(CLEAN OUT)156-0927
VALVE GPAUTO LUBE SOL7D-6081
VALVE GPAIR STARTERRELAY115-9190
MOTOR GPAIR START205-4824
SEE HYDRAULIC SYSTEM SCHEMATIC
1210
3
2
1
Y
X
VALVE GPBRAKE DIVERTERSOLENOID251-7763
VALVE ASYPARK & SEC213-1081
ATTACHMENT
3
2
1
3
2
1
VALVE GPDIVERTERLOCKOUT SOL188-3580
3 1
2
6 ARC SIGNAL
5 SERVICE/RETARDER/ARCSIGNAL TO DIVERTER
4 SERVICE/RETARDER SIGNAL
3 SECONDARY/PARK SIGNAL
2 PROTECTED AIR
1 CAB SUPPLY
PORT
CAB PORT FUNCTION
7 LUBE SYSTEM
CHECKVALVE
DD
CA
B
F
E
MENGINE
WASTEGATE
P
L
K
EXTERNALAIR SUPPLY
INV VALVEDELIVERY
INV VALVE SUP
INV VALVE CTRL
FROM
UNLOADPORT
AIRDRYER
Z
Y
F
M
7 6 5 4 3 2
JUNCTIONBLOCK
H
BB
W
U
DBL CKVALVE
T
S
N
M
AA
G
SAFETYVALVE
J
REAR CAB WALL
CLEANOUTHOSE
1
BB
J
H
O
S
BUDDYAIRSEAT
CABCAB
PARK BRAKEAPPLIED
AUTOLUBETANK
AIRSEAT
SECONDARY
CC
BKON
D S
RETR
CHECKVALVE
X
F
E
D
C
A
PRIMARYAIR
RESERVOIR
SECONDARYRESERVOIR
AIRHORN
SAFETYVALVE
PARK/SECVALVE
AB
FE
CLEANOUT
AIR SYSTEM BLOCK DIAGRAMAIR SYSTEM SCHEMATIC
CYLINDER GPFRONT MASTER8W-3406
VALVE GPDRAIN(SEC RESV)7X-7655
VALVE GPSEC & PARKBRAKE LOCKOUTSOLENOID188-3580
VALVE GPAIR START SOL7D-6081
VALVE GPAIR HORN SOL7T-9074
VALVE GPENGINE WASTEGATE SOL7T-9074
AIR
OIL
AIR
OIL
AIR
OIL
AIR
OIL
SWITCH ASSEC & PARKPRESSURE242-8903
VALVE GPDRAIN(MAIN RESV)7X-7655
RESERVOIRAIR (MAIN)5T-1049
DRYER ASYAIR101-8325
COMPRESSOR GPAIR160-9820
GOVERNOR AS4N-9680
CYLINDER GPREAR MASTER8W-3405
CYLINDER GPFRONT MASTER8W-3406
VALVE GPRELAY159-5149
RESERVOIRAIR (SEC)162-7880
VALVE GPSHUTTLE6D-3781
VALVE GPSERVICE BRAKE247-1292
VALVE ASSERVICE BRAKERETRACT236-6570
AIR GUN(CLEAN OUT)156-0927
VALVE GPAUTO LUBE SOL7D-6081
VALVE GPAIR HORN SOL7T-9074
VALVE GPDIVERTERSOLENOID251-7763
VALVE GPPRESS PROT2G-8815
VALVE GPSEC FOOTAIR BRAKE247-1293
VALVE GPPARK BRAKE SW(DETENTED)128-4971
VALVE GPAIR STARTERRELAY115-9190
MOTOR GPAIR START205-4824 (TDI TURBINE)170-1133 (INGERSOL TURBINE)4W-6633 (INGERSOL VANE)
VALVE GPAIR START SOL7D-6081
VALVE GPSEC & PARKBRAKE LOCKSOLENOID188-3580
SSWWIITTCCHH AASSSSEECC && PPAARRKKPPRREESSSSUURREEXXXXXX--XXXXXXXX
SWITCH ASSERVICE BRAKE3E-2034
SENSOR GPAIR PRESSURE141-5746
VALVE GPREGULATOR(WASTE GATE)8D-4755
VALVE GPENGINE WASTEGATE SOL7T-9074
LINE PATTERNS
Component Group
Pilot / Load Sensing Pressure
Pressure Line
Attachment
ATTACHMENTS
ATTACHMENTS
ATTACHMENTS
THIS SCHEMATIC IS FOR THE 793D OFF-HIGHWAY TRUCKPart #: 193-6208 CHG 00Components are shown installed on a fully operable machine with the key and engineoff and transmission shifter in neutral.Refer to the appropriate service manual for System Operation, Troubleshooting and Specifications.
