Komatsu D61EXi-24 D61PXi-24 Japan Workshop Manual

Description

Komatsu D61EXi-24 D61PXi-24 Japan Workshop Manual for crawler bulldozers with serial numbers 40001 and up.

This comprehensive 2,994-page workshop manual provides detailed technical information for servicing, maintaining, diagnosing and repairing Japan-specification Komatsu D61EXi-24 and D61PXi-24 bulldozers. It is intended for professional mechanics, plant engineers, service technicians and experienced owners responsible for maintaining these advanced machines.

The Komatsu D61EXi-24 D61PXi-24 Japan Workshop Manual explains the construction and operation of the bulldozer’s mechanical, hydraulic, electrical, electronic and intelligent machine-control systems. Detailed specifications, technical diagrams, illustrations and step-by-step procedures support accurate diagnosis, adjustment and repair.

This edition specifically covers Japan-market D61EXi-24 and D61PXi-24 machines beginning with serial number 40001. Machines manufactured for other markets or serial-number ranges may use different components, specifications and service procedures. The complete machine model and serial number should therefore be confirmed before work begins.

Workshop manual coverage includes:

Engine and related systems – Technical information covering the diesel engine, fuel supply equipment, lubrication system, cooling system, air intake, exhaust equipment, engine mounting and associated components.

Power train – Detailed structure, testing and repair information for the torque converter, transmission, drive shafts, steering equipment, brakes, final drives and other power-transmission components.

Undercarriage – Inspection, adjustment and repair procedures for track assemblies, track frames, rollers, carrier rollers, idlers, sprockets, recoil mechanisms and track-tension equipment.

Hydraulic system – Structure, operation, testing and overhaul information for hydraulic pumps, control valves, cylinders, tanks, filters, hoses, pipework and hydraulic circuits.

Work equipment – Service and repair procedures for the blade, lift cylinders, tilt mechanism, linkages, pins, mounting components and ripper equipment where fitted.

Electrical system – Information covering batteries, starting and charging equipment, wiring, connectors, switches, sensors, lighting, warning equipment and machine-monitoring components.

Electronic control equipment – Descriptions and diagnostic procedures for electronic control units, machine monitors, sensors, switches and related electronic components.

Intelligent machine-control system – Specialised technical information relating to the integrated control equipment fitted to the D61EXi-24 and D61PXi-24 models, including components associated with automated blade-control operation.

Operator’s compartment – Removal, installation and servicing information for the cab, seat, pedals, control levers, displays, heating, ventilation and air-conditioning components.

Testing and adjustment – Procedures for checking hydraulic pressures, operating speeds, electrical measurements, component clearances and overall machine performance.

Troubleshooting – Symptom-based diagnostic guidance for identifying mechanical, hydraulic, electrical and electronic faults. Possible causes and recommended checks help technicians follow an organised diagnostic sequence.

Disassembly and assembly – Detailed instructions for removing, dismantling, inspecting, rebuilding and reinstalling major machine components and assemblies.

Maintenance standards – Standard dimensions, permissible wear limits, component clearances and inspection criteria used when deciding whether parts remain serviceable.

The Komatsu D61EXi-24 D61PXi-24 Japan Workshop Manual is especially valuable when investigating difficult starting, loss of engine power, overheating, transmission problems, steering difficulties, ineffective braking, hydraulic weakness, slow blade movement, electrical failures or machine warning indications.

The troubleshooting information helps technicians identify the affected system before unnecessary dismantling begins. Hydraulic pressures, electrical signals, mechanical clearances and operating speeds can be compared with the specified values to determine whether components are working correctly.

Structure and function sections explain how the machine’s individual components and complete systems operate. This information is useful when diagnosing faults involving several connected systems, such as an electronic control problem affecting hydraulic operation or a sensor input influencing machine performance.

Testing and adjustment procedures allow the technician to measure machine condition before beginning repairs. The appropriate tests can be repeated after the work has been completed to confirm that the bulldozer has been correctly assembled, adjusted and returned to the required operating standard.

Detailed removal, disassembly and assembly procedures support major workshop operations involving the engine, transmission, steering and braking equipment, final drives, hydraulic pumps, control valves, cylinders, work equipment and undercarriage assemblies.

Important precautions, measurements and tightening requirements are included throughout the manual. Following the correct procedures helps reduce the risk of component damage, hydraulic contamination, incorrect adjustment or improper assembly.

The intelligent machine-control sections provide technical information specifically for the “i” models. These machines use integrated electronic, sensor and hydraulic systems to assist blade control. Accurate model-specific information is therefore essential when diagnosing control faults or replacing related components.

The Komatsu D61EXi-24 D61PXi-24 Japan Workshop Manual can also be used for preventative maintenance and planned repairs. Regular inspection of the undercarriage, hydraulic system, electrical equipment and work equipment can identify developing wear before it causes a serious breakdown.

Maintenance standards help technicians assess the condition of shafts, bearings, gears, pins, bushes and other service components. Comparing measurements with the specified limits helps determine whether a part can be reused or requires repair or replacement.

Workshops can use the manual when preparing repair estimates, planning major overhaul work and identifying the tools, lifting equipment and replacement components required for a job. Using the correct technical information can reduce unnecessary labour and machine downtime.

Machine coverage:

Komatsu D61EXi-24 Japan Bulldozer – Serial Number 40001 and up
Komatsu D61PXi-24 Japan Bulldozer – Serial Number 40001 and up

The EX and PX versions use different track and undercarriage configurations to suit different applications and ground conditions. Technicians should confirm the exact model before applying specifications, making adjustments or ordering replacement parts.

This manual should not be confused with publications for standard D61EX-24 and D61PX-24 bulldozers without the “i” designation. It is also important to distinguish this Japan edition from manuals covering machines manufactured for other regional markets.

With 2,994 pages of detailed technical information, the Komatsu D61EXi-24 D61PXi-24 Japan Workshop Manual provides an extensive reference for routine servicing, fault diagnosis, testing, adjustment, component repair and complete machine overhaul.

Supplied as a digital PDF workshop manual for convenient use on a workshop computer, laptop or compatible device.