Komatsu 68E-88E Series Diesel Engine Shop Manual SEBM011501

Description

• Model List:
  • 68E-88E Series Diesel Engine

• 1. MAIN MENU
• 2. COVER
• 3. CONTENTS
• 4. SPECIFICATIONS AND PERFORMANCE
• 5. CROSS SECTION VIEWS
• 5.1. SPECIAL SWIRL PRECOMBUSTION CHAMBER SYSTEM (INDIRECT INJECTION SYSTEM)
• 5.2. DIRECT INJECTION SYSTEM
• 6. COOLING WATER, LUBRICATING OIL AND FUEL OIL
• 6.1. COOLING WATER
• 6.2. LUBRICATING OIL
• 6.3. FUEL OIL
• 7. TROUBLESHOOTING
• 7.1. TROUBLE CAUSES AND REMEDIES
• 7.2. TROUBLE DIAGNOSIS THROUGH MEASUREMENT OF COMPRESSION PRESSURE
• 8. SPECIAL SERVICE TOOLS AND MEASURING INSTRUMENTS
• 8.1. SPECIAL SERVICE TOOLS
• 8.2. MEASURING INSTRUMENTS
• 9. MESUREMENT, INSPECTION AND ADJUSTMENT
• 9.1. MEASURING THE COMPRESSION PRESSURE
• 9.2. ADJUSTING THE VALVE HEAD CLEARANCE
• 9.3. CHECKING THE VBELT TENSION
• 9.4. MEASURING AND CHECKING THE INJECTION PRESSURE AND SPRAY PATTERNS OF THE FUEL INJECTION VALVE
• 9.5. CHECKING AND ADJUSTING THE FUEL INJECTION TIMING
• 9.6. ADJUSTING THE NOLOAD MAXIMUM (OR MINIMUM) REVOLUTIONS
• 9.7. CHECKING THE COOLING WATER SYSTEM AND RADIATOR FOR WATER LEAKAGE
• 9.8. CHECKING THE BATTERY
• 9.9. CHECKING THE SENSORS
• 9.10. CHECKING THE OIL COOLER
• 9.11. CHECKING THE PISTON COOLING NOZZLE
• 10. MEASURING PROCEDURES, SERVICE DATA AND CORRECTIVE ACTION
• 10.1. CYLINDER HEAD
• 10.2. CYLINDER BLOCK
• 10.3. VALVE ROCKER ARM
• 10.4. PISTON AND PISTON RING
• 10.5. CONNECTING ROD
• 10.6. CAMSHAFT
• 10.7. CRANKSHAFT
• 10.8. GEARS
• 10.9. TROCHOID PUMP
• 11. DISASSEMBLY AND REASSEMBLY
• 11.1. DISASSEMBLY
• 11.2. PRECAUTIONS BEFORE AND DURING REASSEMBLY
• 12. SERVICE DATA
• 12.1. CYLINDER HEAD
• 12.2. CYLINDER BLOCK
• 12.3. VALVE ROCKER ARM
• 12.4. PISTON
• 12.5. PISTON RING
• 12.6. CONNECTING ROD
• 12.7. CAMSHAFT
• 12.8. CRANKSHAFT
• 12.9. SIDE GAP AND BACKLASH
• 12.10. OTHERS
• 13. TIGHTENING TORQUE
• 13.1. MAIN BOLT/NUT
• 13.2. STANDARD BOLT AND NUT
• 14. FUEL INJECTION PUMP FOR INDIRECT INJECTION SYSTEM
• 14.1. EXPLODED VIEW
• 14.2. DISASSEMBLY
• 14.3. INSPECTION
• 14.4. REASSEMBLY
• 15. FUEL INJECTION PUMP FOR DIRECT INJECTION SYSTEM
• 15.1. EXPLODED VIEW (YPES TYPE)
• 15.2. SPECIAL SERVICE TOOLS FOR DISASSEMBLY AND REASSEMBLY
• 15.3. DISASSEMBLY
• 15.4. INSPECTION
• 15.5. REASSEMBLY
• 16. GOVERNOR
• 16.1. EXPLODED VIEWS OF GOVERNOR FOR INDIRECT INJECTION SYSTEM
• 16.2. EXPLODED VIEWS OF GOVERNOR FOR DIRECT INJECTION SYSTEM
• 16.3. DISASSEMBLY
• 16.4. INSPECTION
• 16.5. REASSEMBLY
• 17. TURBOCHARGER
• 17.1. SPECIFICATIONS
• 17.2. CONSTRUCTION
• 17.3. WASTE GATE VALVE ADJUSTING METHOD
• 17.4. EXPLODED VIEW OF TURBOCHARGER (WITH WASTE GATE)
• 17.5. TIGHTENING TORQUE
• 17.6. SERVICE STANDARDS
• 18. SERVICE INFORMATION FOR CARB ULG REGULATION
• 18.1. LIMITING THE HIGH IDLE AND LOW IDLE ADJUSTMENT SCREW
• 18.2. LIMITING THE FUEL VOLUME LIMITER SCREW
• 19. ATTACHED DRAWING
• 19.1. EXPLODED VIEWS OF ENGINE COMPONENTS
• 19.2. EXPLODED VIEWS OF ENGINE COMPONENTS
• 20. EPA CERTIFIED ENGINE
• 20.1. APPLICABLE MACHINE, SERIAL NUMBER (EPA CERTIFIED ENGINE)
• 20.2. EPA CERTIFICATION PLATE ATTACHING LOCATION
• 20.3. DIFFERENCES WITH THE CURRENT PRODUCTION MODEL
• 20.4. FUEL INJECTION TIMING ADJUSTMENT
• 20.5. SPECIFICATIONS