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Komatsu H285S Hydraulic Shovel Shop Manual H285S78067SM

$40.00

Type Of Manual: Shop Manual
Manual ID: H285S78067SM
Format: PDF
Size: 23.3MB
Number of Pages: 752

Category: Komatsu Shop Manual PDF

Model List:
- H285S Hydraulic Shovel

1. MAIN MENU
2. COVER
3. FOREWORD
4. LIST OF CONTENTS
5. PART 1
5.1. DIVISION OF MACHINE
5.2. SUPERSTRUCTURE
5.3. UNDERCARRIAGE
5.4. EQUIPMENT
5.5. SPECIAL EQUIPMENT
5.6. TOOTH SYSTEMS
5.7. LUBRICATION
5.8. REFILLING UNIT
5.9. HYDRAULIC SYSTEM
5.10. CONTROL
5.11. CONTROL UNITS
5.12. FILTERS OF THE HYDRAULIC OIL
5.13. ASSEMBLING THE EXCAVATOR
6. PART 2
6.1. LIST OF CONTENTS
6.2. HINTS FOR THE HYDRAULIC CIRCUIT DIAGRAM
6.3. ELECTRIC CIRCUIT DIAGRAM
6.3.1. HINTS FOR THE ELECTRIC CIRCUIT DIAGRAM
6.3.2. HINTS FOR CHECK AND ADJUSTMENTS
6.4. PROPULSION
6.4.1. CUMMINS ENGINE
6.4.2. SWITCHES, SENSORS AND FILTERS
6.4.3. RPM ADJUSTMENTS
6.4.4. FAN/FAN DRIVE
6.4.5. AIR FILTER
6.4.6. COUPLING
6.5. PUMP DISTRIBUTOR GEAR
6.5.1. GEAR LUBRICATION
6.6. HYDRAULIC PUMPS
6.7. PUMP BEARING LUBRICATION
6.8. PUMP REGULATION
6.8.1. LOAD LIMIT REGULATION
6.8.2. PRESSURE CUTOFF
6.8.3. SETTING OF THE LOAD LIMIT VALVE
6.8.4. MEASURING AND SETTING OF THE PRESSURE OF THE PRESSURE CUTOFF VALVE
6.8.5. MEASURING AND SETTING OF THE BEGINNING OF REGULATION WITHOUT A TEST BOLT
6.8.6. CHECKING WITH TEST SCREW
6.9. HYDRAULIC OIL COOLING
6.9.1. MEASURING AND SETTING OF THE FAN SPEED
6.9.2. COOLING CIRCUIT
6.9.3. MEASURING AND SETTING OF THE BACK PRESSURE VALVE
6.9.4. CHECKS TO BE PERFORMED IF HYDRAULIC TEMPERATURE IS TOO HIGH
6.10. HYDRAULIC OIL TANK
6.11. PILOT PRESSURE CIRCUITS
6.11.1. CONTROL OIL SUPPLY
6.11.2. CHECKS AND ADJUSTMENTS
6.11.3. CONTROL OIL FLOW FROM THE 4 FUNCTIONS PILOT CONTROL UNIT TO THE CONTROL BLOCKS
6.11.4. CONTROL OIL FLOW FROM PEDAL TO THE CONTROL BLOCK
6.11.5. CONTROL OIL FLOW FROM THE 2 FUNCTION CONTROL UNIT TO CONTROL BLOCK
6.11.6. TRAVEL PARKING BRAKE
6.11.7. SLEW PARKING BRAKE
6.12. SERVICE LINE CIRCUITS
6.12.1. MEASUREMENTS AND PRESSURE ADJUSTMENTS/SLEW CIRCUIT
6.12.2. TRAVEL MOTORS
6.12.3. MEASUREMENTS AND PRESSURE ADJUSTMENTS/TRAVEL MOTORS
6.12.4. BUCKET CYLINDER
6.12.5. MEASUREMENTS AND PRESSURE ADJUSTMENTS/BUCKET CYLINDER
6.12.6. CLAM CYLINDER
6.12.7. MEASURINGS AND PRESSURE ADJUSTMENTS/CLAM CYLINDER
6.12.8. STICK CYLINDER/LOADER ATTACHMENT
6.12.9. MEASURINGS AND PRESSURE ADJUSTMENTS/STICK CYLINDER/LOADER ATTACHMENT
6.12.10. BOOM CYLINDER/LOADER ATTACHMENT
6.12.11. MEASURINGS AND PRESSURE ADJUSTMENTS/BOOM CYLINDERS/LOADER ATTACHMENTS
6.12.12. BUCKET CYLINDER (BACK HOE ATTACHMENT)
6.12.13. MEASUREMENTS AND PRESSURE ADJUSTMENTS/BUCKET CYLINDER
6.12.14. STICK CYLINDER/BACK HOE ATTACHMENT
6.12.15. MEASURINGS AND ADJUSTMENTS/STICK CYLINDER/BACK HOE ATTACHMENT
6.12.16. BOOM CYLINDER/BACK HOE ATTACHMENT
6.12.17. MEASURINGS AND PRESSURE ADJUSTMENTS/BOOM CYLINDERS/BACK HOE ATTACHMENT
6.12.18. AIR CONDITION DRIVE
6.12.19. MEASUREMENT AND ADJUSTMENT/AIR CONDITION DRIVE
6.13. LUBRICATION SYSTEM
6.13.1. SINGLE CIRCUIT CENTRAL LUBRICATION SYSTEM WITH PROGRESSIVE DISTIBUTORS
6.13.2. ELECTRICAL FUNCTION
6.13.3. MEASUREMENT AND PRESSURE ADJUSTMENT/COMPRESSED AIR SYSTEM
6.13.4. SLEW RING TOOTHING MIST LUBRICATION
6.13.5. ELECTRICAL FUNCTION
6.13.6. MEASUREMENT AND PRESSURE ADJUSTMENT/COMPRESSED AIR SYSTEM
6.14. GENERATOR DRIVE
6.14.1. MEASUREMENTS AND ADJUSTMENTS/GENERATOR DRIVE
7. PART 3
7.1. LIST OF CONTENTS
7.2. PLATFORM
7.3. DIESEL MOTOR
7.3.1. COMPUSAVE ENGINE MOTOR
7.4. COUPLING
7.5. UNIVERSAL SHAFT
7.6. PUMP DISTRIBUTOR GEAR
7.7. HYDRAULIC PUMPS
7.7.1. MAIN PUMPS, A7V HDD
7.7.2. GEARED PUMPS
7.7.3. HYDRAULIC PUMP A2F
7.7.4. HYDRAULIC PUMP A10V 0
7.7.5. HYDRAULIC PUMP A7F 0/107
7.8. DIESEL FUEL TANK
7.8.1. ELECTRONIC SETUP
7.9. HYDRAULIC OIL TANK
7.10. HYDRAULIC OIL FILTERS
7.10.1. FILTERS IN THE PUMP LINE TO THE CONTROL BLOCKS
7.10.2. INLINE FILTER
7.10.3. RETURN OIL/CASE DRAIN FILTER IN THE HYDRAULIC RESERVOIR
7.10.4. BREATHER FILTER ON THE HYDRAULIC OIL RESERVOIR
7.11. CONTROL BLOCKS AND VALVES
7.11.1. FOLD CONTROL BLOCK M0 52
7.11.2. PRESSURE RELIEF VALVE, PILOT OPERATED
7.11.3. SECONDARY VALVE PRECONTROLLED
7.11.4. ANTICAVITATION VALVE (MAKEUP VALVE)
7.11.5. LOAD HOLDING VALVES INSIDE THE SPOOLS
7.11.6. SINGLE CONTROL BLOCK M0 40
7.11.7. PRESSURE INCREASING VALVE
7.11.8. PRESSURE RELIEF VALVE, PILOT OPERATED
7.11.9. CHECK VALVE
7.11.10. SHUTTLE VALVE
7.11.11. PRESSURE RELIEF VALVE, PRECONTROLLED
7.11.12. PRESSURE RELIEF VALVE, PILOT OPERATED
7.11.13. PRESSURE RELIEF VALVE, PILOT OPERATED
7.11.14. PRESSURE RELIEF VALVES TYPE DB/DBW
7.11.15. MAGNET VALVE
7.11.16. PRESSURE RELIEF VALVE, REMOTE CONTROLLED
7.11.17. LOAD LIMIT VALVE
7.11.18. NOZZLE BLOCK/PUMP REGULATING
7.11.19. PRESSURE SEQUENCE VALVE (PRESSURE CUT OFF VALVE)
7.11.20. RESTRICTOR BLOCK
7.11.21. PILOT CONTROL UNITS, 4 BOLT UNITS
7.11.22. PILOT CONTROL UNITS, 1 BOLT UNITS
7.11.23. TRAVEL BRAKE VALVE
7.12. PRESSURE ACCUMULATOR
7.12.1. TESTING THE PRECHARGE PRESSURE AND REFILLING
7.13. SLEW GEAR
7.13.1. REPLACEMENT OF THE DISKS
7.13.2. REPLACEMENT OF THE QUADRINGS
7.13.3. AXIAL PISTON MOTOR
7.14. SLEW RING
7.15. UNDERCARRIAGE
7.15.1. IDLER WHEEL ASSEMBLY
7.15.1.1. ALTERING THE TRACK TENSION
7.15.2. BOTTOM ROLLER
7.15.3. TOP ROLLER
7.15.4. CRAWLER DRIVE ASSY
7.15.5. TRAVEL GEAR
7.15.5.1. REPLACEMENT OF THE DISKS
7.15.5.2. REPLACEMENT OF THE QUADRINGS
7.15.6. DRIVE SPROCKET
7.15.7. CRAWLER CHAIN
7.15.8. AXIAL PISTON MOTOR
7.15.9. ROTARY DISTRIBUTOR
7.16. HYDRAULIC CYLINDERS
7.17. AIR CONDITIONING EQUIPMENT
7.17.1. MAINTENANCE SCHEDULE
7.17.2. PRESSURE MONITORING
7.18. COMPRESSED AIR SYSTEM
7.18.1. COMPRESSOR AT CU ENGINE
7.18.2. AIR DRYER
7.18.3. AUTOMATIC DRAIN VALVE
7.18.4. AIR EQUIPMENT SERVICE UNIT
7.18.5. SOLENOID VALVE
7.18.6. VENT VALVE ASSEMBLY
7.19. LUBE SYSTEM
7.19.1. METERING VALVE
7.19.2. PROGRESSIVE LUBE DISTRIBUTOR
7.19.3. PRESSURE CONTROL UNIT
7.19.4. TROUBLESHOOTING LUBRICATION SYSTEM
7.20. SHORT INFORMATION
7.20.1. REVOLUTIONS/PRESSURES
7.20.2. FILLING CAPACITIES
7.20.3. HYDRAULIC OIL
7.21. TORQUE CHART
7.21.1. TORQUE CHART NM
7.21.2. TORQUE CHART FT LBF
7.22. CONVERSION METRIC/INCH
8. TROUBLESHOOTING H285
8.1. GENERAL
8.2. MALFUNCTION WHEN EXTENDING OR RETRACTING CYLINDERS
8.3. TROUBLESHOOTING SLEW CIRCUIT
8.4. TROUBLESHOOTING SLEW BRAKE CIRCUIT
8.5. TROUBLESHOOTING SLEW HOUSE BRAKE CIRCUIT
8.6. TROUBLESHOOTING TRAVEL CIRCUIT
8.7. TROUBLESHOOTING THE TRAVEL BRAKE CIRCUIT
8.8. TROUBLESHOOTING PUMP REGULATION CIRCUIT
8.9. TROUBLESHOOTING OIL COOLER CIRCUIT
9. HYDRAULIC/ELECTRICAL DIAGRAM
9.1. CONTENTS
9.2. HYDRAULIC DIAGRAM
9.3. ELECTRICAL DIAGRAM

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