Komatsu Bulldozer D155AXI-8 SN 100040-UP Factory Workshop Service Repair Manual

Komatsu Bulldozer D155AXI-8 SN 100040-UP Factory Workshop Service Repair Manual

Loaded with Hi Resolution illustrations, instructions, photos, and diagrams, complete to service and repair your Komatsu. 

Pages: 3200+

Models Covered :

D155AXI-8 SN 100040-UP

Manual Covers :

INDEX AND FOREWORD:

INDEX

FOREWORD, SAFETY, BASIC INFORMATION

SPECIFICATIONS:

CONTENTS

SPECIFICATIONS

STRUCTURE AND FUNCTION:

CONTENTS

UREA SCR SYSTEM

BOOT-UP SYSTEM

ENGINE SYSTEM

COOLING SYSTEM

CONTROL SYSTEM

HYDRAULIC SYSTEM

POWER TRAIN SYSTEM

WORK EQUIPMENT SYSTEM

ICT SYSTEM

UNDERCARRIAGE AND FRAME

WORK EQUIPMENT

CAB AND ITS ATTACHMENTS

STANDARD VALUE TABLE:

CONTENTS

STANDARD VALUE TABLE FOR ENGINE

STANDARD VALUE TABLE FOR MACHINE

STANDARD VALUE TABLE FOR ELECTRICAL

TESTING AND ADJUSTING:

CONTENTS

RELATED INFORMATION ON TESTING AND ADJUSTING

ENGINE AND COOLING SYSTEM

POWER TRAIN

UNDERCARRIAGE AND FRAME

HYDRAULIC SYSTEM

WORK EQUIPMENT

CAB AND ITS ATTACHMENTS

ELECTRICAL SYSTEM

ICT SYSTEM

Pm CLINIC

TROUBLESHOOTING:

CONTENTS

RELATED INFORMATION ON TROUBLESHOOTING

TROUBLESHOOTING BY FAILURE CODE (DISPLAY OF CODE)

TROUBLESHOOTING OF ELECTRICAL SYSTEM (E-MODE)

TROUBLESHOOTING FOR HYDRAULIC AND MECHANICAL SYSTEMS (H MODE)

TROUBLESHOOTING OF ENGINE (S-MODE)

DISASSEMBLY AND ASSEMBLY:

CONTENTS

RELATED INFORMATION ON DISASSEMBLY AND ASSEMBLY

ENGINE AND COOLING SYSTEM

POWER TRAIN

UNDERCARRIAGE AND FRAME

HYDRAULIC SYSTEM

WORK EQUIPMENT

CAB AND ITS ATTACHMENTS

ELECTRICAL SYSTEM

MAINTENANCE STANDARD:

CONTENTS

ENGINE AND COOLING SYSTEM

POWER TRAIN

UNDERCARRIAGE AND FRAME

HYDRAULIC SYSTEM

WORK EQUIPMENT

CAB AND ITS ATTACHMENTS

APPENDIX:

CONTENTS

AIR CONDITIONER SYSTEM

COMPONENT PARTS OF AIR CONDITIONER SYSTEM

EXPLANATION OF PROCEDURE FOR TESTING AND TROUBLESHOOTING OF AIR CONDITIONER

CIRCUIT DIAGRAM AND ARRANGEMENT OF CONNECTOR PINS FOR AIR CONDITIONER

AIR CONDITIONER SYSTEM DIAGRAM

INSTALLATION LOCATIONS OF AIR CONDITIONER PARTS AND ARRANGEMENT OF CONNECTORS

TESTING AIR LEAKAGE (DUCT)

EXPLANATION FOR TESTING AIR CONDITIONER USING SELF-DIAGNOSIS FUNCTION

HOW TO OPEN THE ELECTRICAL SYSTEM ABNORMALITY RECORD SCREEN IN SERVICE MODE OF THE MACHINE MONITOR

TEST VENT (MODE) CHANGEOVER

TESTING FRESH/RECIRC AIR CHANGEOVER

TEST SUNLIGHT SENSOR

TEST (TRIPLE) PRESSURE SWITCH FOR REFRIGERANT

TEST RELAYS

AIR CONDITIONER TROUBLESHOOTING CHART 1

AIR CONDITIONER TROUBLESHOOTING CHART 2

INFORMATION DESCRIBED IN TROUBLESHOOTING TABLE

FAILURE CODE [879AKA] A/C Recirculation Air Temperature Sensor Open Circuit

FAILURE CODE [879AKB] A/C Recirculation Air Temperature Sensor Short Circuit

FAILURE CODE [879BKA] A/C Fresh Air Temperature Sensor Open Circuit

FAILURE CODE [879BKB] A/C Fresh Air Temperature Sensor Short Circuit

FAILURE CODE [879CKA] Ventilating Sensor Open Circuit

FAILURE CODE [879CKB] Ventilating Sensor Short Circuit

FAILURE CODE [879DKZ] Sunlight Sensor Open Circuit or Short Circuit

FAILURE CODE [879EMC] Ventilation Damper Malfunction

FAILURE CODE [879FMC] Air Mix Damper Malfunction

FAILURE CODE [879GKX] Refrigerant Pressure Input Signal Out of Range

A-1 TROUBLESHOOTING FOR POWER SUPPLY SYSTEM (AIR CONDITIONER DOES NOT OPERATE)

A-2 TROUBLESHOOTING OF COMPRESSOR SYSTEM (AIR IS NOT COOLED)

A-3 TROUBLESHOOTING FOR BLOWER MOTOR SYSTEM (NO AIR COMES OUT OR AIR FLOW IS ABNORMAL)

A-4 TROUBLESHOOTING FOR FRESH/RECIRC AIR CHANGEOVER

TROUBLESHOOTING USING GAUGE PRESSURE

CONNECTION OF SERVICE TOOL

PRECAUTIONS FOR DISCONNECTING AND CONNECTING HOSES AND TUBES IN AIR CONDITIONER PIPINGS

HANDLE COMPRESSOR OIL

CIRCUIT DIAGRAMS:

CONTENTS

HYDRAULIC CIRCUIT DIAGRAM

ELECTRICAL CIRCUIT DIAGRAM

EXTRAS:

Operation and Maintenance Manual

Field Assembly Manual

This manual is the same as the manual used by workshops. Service Manual contains detailed instructions and step by step diagrams for all workshop procedures.

Language: English 
Format: PDF

COMPATIBLE WITH ALL WINDOWS & MAC COMPUTERS 
(WINDOWS 11, WINDOWS 10, WINDOWS 8 ETC.)

Windows/Mac/Tablet/Phone Friendly

• Engine: 
  Komatsu SAA6D140E-7

  , a Tier 4 Final certified diesel engine.

• Horsepower: It delivers a net horsepower of 354 HP (264 kW) at 1,900 rpm.
• Piston displacement: The engine’s displacement is 930 cubic inches (15.24 liters).
• Aspiration: Features a Komatsu Variable Geometry Turbocharger (KVGT), cooled Exhaust Gas Recirculation (EGR), and an air-to-air aftercooler.
• Transmission: A TORQFLOW transmission with a lock-up torque converter. The lock-up feature transfers engine power directly to the transmission, reducing power loss and cutting fuel consumption.
• Operating weight: Approximately 90,610 lbs (41,100 kg), including standard equipment and a SIGMADOZER blade. 

• Automated operation: The dozer senses and controls blade load, minimizes track slip, and optimizes the start of the cut.
• Integrated technology: With factory-installed sensors, it eliminates the need for manual setup and removal of exposed hardware, such as GNSS antennas on the blade.
• Adaptive grading: The system “learns” from the operator’s blade input for increased adaptability and can look ahead at grade transitions to automatically alter the blade angle. 

• Blade capacity: With a standard SIGMADOZER blade, the capacity is 12.3 cubic yards. Komatsu’s patented SIGMADOZER blade is designed to dig and roll material to its center, reducing digging resistance and moving more soil.
• Undercarriage: The Parallel Link Undercarriage System (PLUS) is designed to extend undercarriage service life through features like lubricated track rollers and bushings with dust seals.
• K-bogie suspension: The track rollers are resiliently mounted with a bogie suspension system to maintain maximum traction and provide a smooth ride, even during grade changes. 

• PCCS control: All directional movements are controlled by a single ergonomic Palm Command Control System (PCCS) joystick, allowing for smooth handling and counter-rotation turns.
• Heated seat: The pressurized ROPS cab features a heated, air-suspension seat with lumbar and tilt adjustments for optimal comfort.
• LCD monitor: A 7-inch LCD color monitor provides vital machine data, including maintenance alerts and the view from the standard rearview camera.