Komatsu Bulldozer D155AX-8 SN 100001-UP Factory Workshop Service Repair Manual

Komatsu Bulldozer D155AX-8 SN 100001-UP Factory Workshop Service Repair Manual

Loaded with Hi Resolution illustrations, instructions, photos, and diagrams, complete to service and repair your Komatsu. Read and print pages, or copy the entire manual to your hard drive.

Pages: 3100+

Models Covered :

D155AX-8 SN 100001-UP

Manual Covers :

INDEX AND FOREWORD:

INDEX

ABBREVIATION LIST

FOREWORD, SAFETY, BASIC INFORMATION

SPECIFICATIONS:

CONTENTS

ABBREVIATION LIST

SPECIFICATIONS

STRUCTURE AND FUNCTION:

CONTENTS

ABBREVIATION LIST

UREA SCR SYSTEM

BOOT-UP SYSTEM

ENGINE SYSTEM

COOLING SYSTEM

CONTROL SYSTEM

HYDRAULIC SYSTEM

POWER TRAIN SYSTEM

WORK EQUIPMENT SYSTEM

UNDERCARRIAGE AND FRAME

WORK EQUIPMENT

CAB AND ITS ATTACHMENTS

STANDARD VALUE TABLE:

CONTENTS

ABBREVIATION LIST

STANDARD VALUE TABLE FOR ENGINE

STANDARD VALUE TABLE FOR MACHINE

STANDARD VALUE TABLE FOR ELECTRICAL

TESTING AND ADJUSTING:

CONTENTS

ABBREVIATION LIST

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

Pm CLINIC

TROUBLESHOOTING:

CONTENTS

ABBREVIATION LIST

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

ABBREVIATION LIST

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

ABBREVIATION LIST

ENGINE AND COOLING SYSTEM

POWER TRAIN

UNDERCARRIAGE AND FRAME

HYDRAULIC SYSTEM

WORK EQUIPMENT

CAB AND ITS ATTACHMENTS

APPENDIX:

CONTENTS

ABBREVIATION LIST

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)

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)-(879GKX)

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

A-2 TROUBLESHOOTING FOR COMPRESSOR AND REFRIGERANT 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

ABBREVIATION LIST

HYDRAULIC CIRCUIT DIAGRAM

ELECTRICAL CIRCUIT DIAGRAM

EXTRAS:

Operation and Maintenance Manual SN 100099-UP

Operation and Maintenance Manual SN 100070-UP

Operation and Maintenance Manual SN 100001-100069

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: The 
  D155AX-8

   is powered by a Komatsu 

  SAA6D140E-7

   diesel engine.

• Net horsepower: The engine produces 354 HP at 1,900 rpm, delivering powerful performance for heavy-duty dozing and ripping.
• Transmission: The dozer uses an automatic, electronically controlled power train with an auto-locking torque converter. This provides high efficiency by sending engine power directly to the transmission when it’s not needed by the torque converter.
• Operating weight: The maximum operating weight is approximately 89,300 lbs (40,500 kg). 

• Blade capacity: The 
  D155AX-8

   offers flexible blade options:

  • SIGMADOZER blade

    : Has a capacity of 12.3 yd³. Its unique design rolls material to the center of the blade, which can boost productivity compared to a conventional semi-U blade.

  • Full-U blade

    : Provides a larger capacity of 15.6 yd³.

• Undercarriage: The machine is equipped with Komatsu’s Parallel Link Undercarriage System (PLUS), which uses rotating bushings to extend the wear life of components and reduce maintenance costs. 

• Controls: An ergonomic Palm Command Control System (PCCS) joystick provides precise control of all dozer functions with minimal operator fatigue.
• Cab environment: The cab is designed for operator comfort and safety with features including a heated, air-suspension seat, an integrated ROPS/FOPS structure, and a quiet, pressurized interior to keep out dust.
• Monitoring: A 7-inch LCD color monitor in the cab displays vital machine data, including maintenance alerts, a rearview camera feed, and fuel consumption guidance.
• Connectivity: The dozer includes KOMTRAX remote monitoring technology, which records machine data for fleet management and reports on fuel levels, operating hours, and diagnostics. 

• Tier 4 Final: The SAA6D140E-7 engine meets EPA Tier 4 Final emissions standards, which significantly reduce nitrogen oxides and particulate matter.
• Reduced consumption: The combination of the Tier 4 Final engine, automatic transmission, and lock-up torque converter reduces fuel consumption by as much as 10% compared to previous models