5130B Hydraulic Excavators CHAPTER : Hydraulic System
5130B HYDRAULIC SYSTEM COMPONENTS • Pilot System • Implement System • Travel System • Swing System • Cooling Systems
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5130B Hydraulic Excavators CHAPTER : Hydraulic System
HYDRAULIC SYSTEM SECMENTS
• Hydraulic System Segments: - Pilot system - Implement system - Travel system - Swing system - Cooling systems
The hydraulic system will be discussed in five segments, as shown by the slide above. In segment one, we will see how the pilot system supplies oil to the proportional reducing valves that control power shift pressure to the implement pumps. We will also see how pilot system oil is used in the automatic track tensioning system and the pilot control circuits for the implement, swing, and travel functions. Operation of the controls and control valves for the boom, stick, and bucket functions are covered in the implement system segment. Segment three covers the operation of the travel system including the travel brakes, while segment four covers the swing system including the swing brake. The final segment will cover the operation of the three cooling systems on the 5130B Excavator.
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AUTOMATIC TRACK TENSION
SWIVEL
SWING PRESSURE SWITCH
HIGH PILOT PRESSURE RELIEF VALVE
PILOT MANIFOLD
DUAL PRESSURE
PILOT SYSTEM LOCK VALVE
TO CONTROL VALVES
SWING BRAKE
FROM CONTROL VALVES
RH TRAV
IMPLEMENT PRESSURE SWITCH
SWING CONTROL VALVE
LOW PILOT PRESSURE RELIEF VALVE
PILOT ACCUMULATOR BUCKET CLOSE
TRAVEL PRESSURE SWITCH
REAR CONTROL VALVE
FRONT CONTROL VALVE WARMUP VALVES
LS DUAL PRESSURE RELIEF VALVE
BUCKET OPEN
PILOT FILTER
"G" PORT PRESSURE
TRAVEL BRAKES
AC COMPRESSOR DRIVE MOTOR
BOOM FLOAT SOLENOIDS
TRAVEL BRAKE
5130B PILOT SYSTEM
POWER SHIFT
BOOM FLOAT VALVES RELAY
SWING BRAKES
ENGINE COOLING
HYDRAULIC COOLING
MACHINE CONTROL
CONTROL MANIFOLD
ENGINE CONTROL
AESC CONTROL LINE
V.I.M.S.
5130B Hydraulic Excavators
CHAPTER : Hydraulic System
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5130B AUTOMATIC TRACK TENSION 4000 kPa Pilot RV
PILOT MANIFOLD
Track Adj. Pilot RV (7000 kPa)
ACCUMULATORS
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LEFT ROLLER FRAME
RIGHT ROLLER FRAME
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5130B Hydraulic Excavators
RELIEF VALVE
CHAPTER : Hydraulic System
CYLINDER
CHECK VALVE
CONTROL MANIFOLD
Line "G" Port
4000 kPa Implement Pilot Pressure
ENGINE CONTROL MODULE
Proportional Reducing Valve
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5130B Hydraulic Excavators
5130B PUMPS
Hyd. Cooling Fan Solenoid
CHAPTER : Hydraulic System
7000 kPa Track Tension Pilot Pressure
Eng. Cooling Fan Solenoid
5130B ME HYDRAULIC SYSTEM STICK
SWING MOTORS
BOOM
BUCKET CURL
RELIEF VALVE SWING CONTROL VALVE
6 Spool Valve
BALANCE LINES
PILOT MANIFOLD
BALANCE LINES
LEFT TRAVEL
3 SPOOL VALVE
TO PILOT SYSTEM HIGH PRESSURE SCREEN
TO CONTROL MANIFOLD
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PILOT FILTER
RIGHT TRAVEL
ENGINE
HIGH PRESSURE SCREEN
HYDRAULIC PUMPS
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5130B Hydraulic Excavators
TO TRACK TENSION CIRCUIT
CHAPTER : Hydraulic System
TO CONTROL MANIFOLD
5130B Hydraulic Excavators CHAPTER : Hydraulic System
FRONT MAIN CONTROL VALVE
BUCKET BOOM STICK
BUCKET BOOM STICK
LS Signal (From Trk Ctr Vl ) LS Signal (Output)
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5130B Hydraulic Excavators CHAPTER : Hydraulic System
REAR MAIN CONTROL VALVE TRAVEL BOTTOM DUMP
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5130B Hydraulic Excavators CHAPTER : Hydraulic System
Pressure Limitation 1.
Dual Pressure Load Sensing Relief Valve a. Implement Load Sensing Signal b. Travel Load Sensing Signal
2.
Differential Pressure Relief Valves
3.
Line Relief Valves
4.
Main Relief Valves
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5130B Hydraulic Excavators CHAPTER : Hydraulic System
Load Sensing Control 1. Sends equal signal to four hydraulic pumps 2. Allows individual hydraulic circuits to operate at different pressures 3. Limits maximum system pressure 4. Regulates pump flow according to flow demand
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5130B Hydraulic Excavators CHAPTER : Hydraulic System
SIGNAL DUPLICATION VALVE AND DUAL PRESSURELOAD SENSING RELIEF VALVE (Component Location)
DUAL PRESSURE LOAD SENSING RELIEF VALVE SIGNAL DUPLICATION VALVE
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5130B Hydraulic Excavators CHAPTER : Hydraulic System
SIGNAL DUPLICATION VALVE AND DUAL PRESSURE LOAD SENSING RELIEF VALVE IMPLEMENT ACTIVATED 5130B Condense hyd. schematic
DUAL PRESSURE LOAD SENSING RELIEF VALVE
TRAVEL SIGNAL
HIGHEST SIGNAL PRESSURE
SIGNAL DUPLICATION VALVE
LOAD SENSING PRESSURE
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5130B Hydraulic Excavators CHAPTER : Hydraulic System
SIGNAL DUPLICATION VALVE AND DUAL PRESSURELOAD SENSING RELIEF VALVE TRAVEL ACTIVATED 5130B Condense hyd. schematic
TRV CTR VAL
To Travel Control Valve
DUAL PRESSURE LOAD SENSING RELIEF VALVE
TRAVEL SIGNAL
HIGHEST SIGNAL PRESSURE
SIGNAL DUPLICATION VALVE
LOAD SENSING PRESSURE
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5130B Hydraulic Excavators CHAPTER : Hydraulic System
LOAD SENSING DIFFERENTIAL PRESSURE RELIEF VALVE
5130B Condense hyd. schematic
LOAD SENSING PRESSURE
TO IMPLEMENT AND TRAVEL CONTROL VALVES
HIGH PRESSURE SCREEN
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5130B Hydraulic Excavators CHAPTER : Hydraulic System
LINE RELIEF VALVE (Component Location)
FRONT MAIN CONTROL VALVE
LINE RELIEF VALVES
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5130B Hydraulic Excavators CHAPTER : Hydraulic System
LINE RELIEF VALVE 5130B Condense hyd. schematic
POPPET
RELIEF VALVE
TO IMPLEMENT CIRCUITS
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5130B Hydraulic Excavators CHAPTER : Hydraulic System
LOAD CHECK VALVES AND FLOW COMPENSATOR VALVES
VALVE LOCATIONS
FRONT MAIN CONTROL VALVE
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5130B Hydraulic Excavators CHAPTER : Hydraulic System
BUCKET CONTROL VALVE BUCKET CURL
LOAD SENSING SIGNAL FROM DUPLICATING VALVE TO SIGNAL DUPLICATION VALVE
LOAD SENSING SIGNAL TO PUMP CONTROLS
COMPENSATOR VALVE
FEEDER PASSAGE
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5130B Hydraulic Excavators CHAPTER : Hydraulic System
COMPENSATOR VALVE AND LOAD CHECK VALVE NEUTRAL
SIGNAL FROM OTHER HYDRAULIC CIRCUITS
LOAD SENSING SIGNAL FROM DUPLICATING VALVE
LOAD SENSING SIGNAL TO PUMP CONTROLS LOAD SENSING SIGNAL TO DUPLICATING VALVE
COMPENSATOR AND LOAD CHECK VALVE
ORIFICES
SUPPLY PASSAGE
FEEDER PASSAGE
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PROPORTIONAL PRIORITY PRESSURE COMPENSATED SYSTEM 5130B Condense hyd. schematic
LOAD SENSING SIGNAL DUPLICATION VALVE
TO STICK CYLINDER
RIGHT TANDEM PUMPS
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5130B Hydraulic Excavators
Page:
LEFT TANDEM PUMPS
BOOM VALVE
TO BOOM CYLINDERS
CHAPTER : Hydraulic System
STICK VALVE
FLOW COMPENSATOR VALVE
5130B BUCKET BOTTOM BUCKET OPEN DUMP RIGHT JOYSTICK
LEFT JOYSTICK
BUCKET OPEN/CLOSE
BOTTOM DUMP CLOSE
BOTTOM DUMP OPEN
AESC (ALL)
FROM HYDRAULIC ACTUATION VALVE Machine Control Module
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5130B Hydraulic Excavators
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TO HYDRAULIC ACTUATION VALVE
CHAPTER : Hydraulic System
3 SPOOL VALVE
5130B TRAVEL CIRCUIT
TO TRACK TENSION CIRCUIT
TRAVEL COUNTERBALANCE VALVES
FRONT CV
PILOT MANIFOLD LEFT TRAVEL
RIGHT TRAVEL
TO PILOT SYSTEM
TO CONTROL MANIFOLD BALANCE LINES TO CONTROL MANIFOLD PILOT FILTER
HIGH PRESSURE SCREENS
HYDRAULIC PUMPS
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5130B Hydraulic Excavators
ENGINE
CHAPTER : Hydraulic System
REAR CV
5130B TRAVEL COUNTERBALANCE AND RELIEF VALVES TRAVELING
B
A
B
TO MOTOR
SECTION OF AREA B
SECTION OF AREA A
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3 SPOOL CONTROL VALVE
24
5130B Hydraulic Excavators
A
CHAPTER : Hydraulic System
FROM MOTOR
5130B TRAVEL COUNTERBALANCE AND RELIEF VALVES COUNTERBALANCE FUNCTION
A
B
SECTION OF AREA A
SECTION OF AREA B
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3 SPOOL CONTROL VALVE
25
5130B Hydraulic Excavators
TO MOTOR
CHAPTER : Hydraulic System
FROM MOTOR
5130B TRAVEL BRAKE RELEASED LEFT TRAVEL
RIGHT TRAVEL ECM TRAVEL ALARM PRESSURE SWITCH MACHINE CONTROL
3 SPOOL VALVE
LOAD SENSING DUAL PRESSURE RELIEF VALVE
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LADDER POSITION SWITCH
LADDER POSITION SWITCH
PILOT PUMP
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HYDRAULIC ACTUATION VALVE
5130B Hydraulic Excavators
PILOT MANIFOLD
CHAPTER : Hydraulic System
TRAVEL ALARM
VIMS INTER. NO. 2
SWING MOTORS
5130B SWING SYSTEM
SWING BRAKES
LEFT JOYSTICK LADDER POSITION SWITCHES MACHINE CONTROL MODULE
RELIEF VALVE SWING CONTROL VALVE
ENGINE
HYDRAULIC PUMPS
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PILOT MANIFOLD
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SWING BRAKE SOLENOID VALVE
HYDRAULIC ACTUATION VALVE
PILOT FILTER
5130B Hydraulic Excavators
HIGH PRESSURE SCREEN
CHAPTER : Hydraulic System
SWING PRESSURE SWITCH
ENGINE CONTROL MODULE
5130B SWING CONTROL VALVE SWINGING
LEFT SWING PILOT SIGNAL
RESOLVER SIGNAL TO SWING PUMP
RIGHT SWING PILOT SIGNAL
HIGH PRESSURE RELIEF VALVE LOW PRESSURE RELIEF VALVE RETURN CHECK VALVE TO DRAIN SECTION C-C
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SECTION D-D
E
D
C
C E
SECTION B-B
RIGHT SWING MOTOR
SECTION E-E
28
5130B Hydraulic Excavators
D
CHAPTER : Hydraulic System
LEFT SWING MOTOR
SWING MOTORS
5130B SWING SYSTEM
SWING BRAKES
LEFT JOYSTICK LADDER POSITION SWITCHES MACHINE CONTROL MODULE
RELIEF VALVE SWING CONTROL VALVE
ENGINE
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HYDRAULIC PUMPS
PILOT MANIFOLD
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SWING BRAKE SOLENOID VALVE
HYDRAULIC ACTUATION VALVE
PILOT FILTER
5130B Hydraulic Excavators
HIGH PRESSURE SCREEN
CHAPTER : Hydraulic System
SWING PRESSURE SWITCH
ENGINE CONTROL MODULE
5130B Hydraulic Excavators CHAPTER : Hydraulic System
5130B SWING CONTROL VALVE SWINGING LEFT SWING MOTOR
RIGHT SWING MOTOR
RELIEF VALVE SECTION
CENTER MANIFOLD SECTION
HIGH PRESSURE LOAD SPOOL AND POPPET
DRAIN
No. 7
RELIEF VALVE SHUTTLE SPOOL
No. 8
DUMP SPOOL
No. 5
LOW PRESSURE LOAD SPOOL AND POPPET
No. 6 RESOLVER VALVE No. 4
RIGHT SWING PILOT SIGNAL
RESOLVER SIGNAL TO SWING PUMP
No. 3 No.1 SWING CONTROL SPOOL
No. 2
LEFT SWING PILOT SIGNAL
CONTROL SPOOL SECTION SWING PUMP FLOW
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5130B Hydraulic Excavators CHAPTER : Hydraulic System
COOLING SYSTEMS
• Engine And Aftercooler Cooling System • Hydraulic Cooling System • Pump Drive Cooling And Lubrication System
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5130B ENGINE/AFTERCOOLER COOLING SYSTEM MACHINE CONTROL
FUEL TANK CAB SUPPORT VIMS
ENGINE COOLING PUMP
ENGINE
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ENGINE COOLING PUMP CONTROL VALVE
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TEMPERATURE SENSOR
ECM
ENGINE RADIATOR
5130B Hydraulic Excavators
ENGINE COOLING FAN AND MOTOR
CHAPTER : Hydraulic System
HYDRAULIC TANK
ENGINE COOLING SYSTEM
VIMS ECM
TEMPERATURE SENSOR
SWING PUMP
Page:
PILOT PUMP
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5130B Hydraulic Excavators
MAKEUP VALVE
CHAPTER : Hydraulic System
ENGINE COOLING PUMP SOLENOID VALVE
ENGINE
5130B ENGINE COOLING SYSTEM FAN
1000 970 RPM 98°C
800 700
375 RPM 88°C
500 400 300 50
60
70
80
90
100
ENGINE COOLANT TEMPERATURE IN °C
110
120
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5130B Hydraulic Excavators
600
CHAPTER : Hydraulic System
FAN SPEED RPM
900
HYDRAULIC COOLING SYSTEM MACHINE CONTROL
MAKE UP VALVE HYDRAULIC OIL COOLER
FUEL TANK CAB SUPPORT VIMS
HYDRAULIC SYSTEM COOLING FAN AND MOTOR
TEMPERATURE SENSOR
ENGINE
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HYDRAULIC SYSTEM COOLING PUMP CONTROL VALVE
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HYDRAULIC SYSTEM COOLING PUMP
ECM
5130B Hydraulic Excavators
CHAPTER : Hydraulic System
HYDRAULIC TANK
HYDRAULIC COOLING SYSTEM
ENGINE COOLING PUMP SOLENOID VALVE MACHINE CONTROL
