Komatsu D61EXi-23 D61PXi-23 Bulldozer Shop Manual SEN06256-02 PDF

Description

Komatsu D61EXi-23 D61PXi-23 Bulldozer Shop Manual – SEN06256-02 PDF

The Komatsu D61EXi-23 D61PXi-23 Bulldozer Shop Manual SEN06256-02 PDF is the complete factory service and repair documentation for these tracked dozers, covering serial numbers D61EXi-30324 and D61PXi-30324 and up. This digital volume walks a technician through the entire machine — from the Komatsu SAA6D107E-2 common rail diesel engine, the hydrostatic transmission (HST pump, HST motor, charge pump and final drive), the work equipment and cooling fan hydraulics, undercarriage and main frame, the ROPS cab, and the full electrical, machine monitor and Intelligent Machine Control (iMC) system. If you need the pressure values, torque figures, diagnostic trees, disassembly procedures or assembly tolerances for these dozers, this manual carries them all in one place.

File Details

• Manual type: Shop Manual (service, repair and overhaul)
• Brand: Komatsu
• Models covered: D61EXi-23, D61PXi-23
• Engine: Komatsu SAA6D107E-2 diesel engine
• Serial numbers: D61EXi-30324 and up; D61PXi-30324 and up
• Document number: SEN06256-02
• Language: English
• File format: PDF
• Approximate length: 1,969 pages of factory content
• Coverage: Engine and cooling, power train, undercarriage, hydraulics, work equipment, cab, electrical, ICT and air conditioning appendix

Models, Engine and Serial Coverage

This Komatsu D61EXi-23 D61PXi-23 Bulldozer Shop Manual covers both the standard-build D61EXi-23 and the wider-shoe D61PXi-23, from serial number 30324 onward. The machine’s power source is the Komatsu SAA6D107E-2 4-cycle water-cooled in-line six-cylinder common rail diesel engine with turbocharger and air-cooled aftercooler. Both the EXi and PXi variants share the same engine, HST drive layout, hydraulic architecture and electrical platform, so a single copy of this manual serves both dozers for the serial range listed.

Chapters Covered

The manual is organized into nine top-level sections, each of which breaks down into focused sub-chapters:

• 00 — Index and foreword: safety notices, how to read the manual, tightening torque tables, abbreviations, conversion tables and handling precautions for fuel, intake, hydraulic and electrical equipment.
• 01 — Specification: specification drawings, full machine specifications, weight tables and the table of fuel, coolant and lubricants.
• 10 — Structure and function: KVGT, EGR system, EGR valve, EGR cooler, KCCV, KDPF, cooling system, cooling fan motor, damper, HST pump, HST motor, charge pump, solenoid valves, final drive, main frame, suspension, track frame and idler cushion, CLSS, control valve, ripper PPC valve, quick drop valve, angle control EPC valve, accumulator, blade, ripper, ROPS cab, cab mount, electrical control system, machine monitor system, KOMTRAX and sensors.
• 20 — Standard value tables: engine, machine and electrical system standard values plus repair limits.
• 30 — Testing and adjusting: engine speed, boost, exhaust color, valve clearance, compression, blowby, oil pressure, EGR and KVGT oil pressures, fuel pressure and flow, bleeding, HST pressures, solenoid output pressures, track tension, idler clearance, work equipment pressures, EPC outlet pressures, fan speed, cylinder internal leakage, machine monitor special functions, control box functions and much more.
• 40 — Troubleshooting: connector layout, fuse locations, failure-code tables and the full failure-code-by-code diagnostic procedures (CA, D and DA/DB-series), electrical E-mode, hydraulic and mechanical H-mode, and engine S-mode troubleshooting.
• 50 — Disassembly and assembly: full removal, installation, disassembly and assembly procedures with torque values, coating materials and special tools — covering the engine, cooling, power train, undercarriage, frame, hydraulic system, work equipment, cab and electrical components.
• 60 — Maintenance standard: wear limits, clearances, tolerances and repair/replacement criteria for engine mounts, cooling fan motor, HST pump and motor, charge pump, final drive, sprocket, suspension, idler, track roller, carrier roller, track shoe, hydraulic tank, pump, control valve, ripper PPC valve, quick drop valve, angle control EPC valve, blade, cutting edge, ripper, cylinders and sensors.
• 80 — Appendix (air conditioner): refrigerant precautions, refrigeration cycle, air conditioner unit, dual pressure switch, compressor, condenser, receiver drier, electrical diagram, troubleshooting charts and compressor oil handling.
• 90 — Diagrams and drawings: hydraulic circuit diagram with symbols and full electrical circuit diagram (12 sheets) with symbols.

Altogether, this volume gives a technician the same working reference the dealer workshop uses when servicing, diagnosing and rebuilding a D61EXi-23 or D61PXi-23. It combines the reasoning behind each system, the numeric standards you need to judge wear, the step-by-step procedures for removal and rebuild, and the wiring and hydraulic diagrams to trace a fault to its source.

What a Technician Gets From This Manual

Concretely, the Komatsu D61EXi-23 D61PXi-23 Bulldozer Shop Manual SEN06256-02 supports work such as:

• Removing and re-installing the supply pump, fuel injectors, cylinder head, radiator, aftercooler, hydraulic oil cooler, cooling fan drive, cooling fan motor, engine assembly, damper, KDPF, KCCV, KVGT, EGR cooler and EGR valve.
• Removing and re-installing the HST pump, HST motor, final drive, track frame, idler, recoil spring, track rollers, carrier rollers, segment teeth, pivot shaft and equalizer bar.
• Disassembling and reassembling the final drive, hydraulic cylinders (lift, tilt, angle and ripper), recoil spring, idler and track roller.
• Testing and adjusting engine speed, boost pressure, compression pressure, blowby pressure, engine oil pressure, fuel pressure, HST pressures, solenoid output pressures, EPC outlet pressures, fan speed and track tension.
• Reading and clearing failure codes on the machine monitor, using the service mode and adjustment menu, calibrating blade-edge geometry and setting up ICT controllers after replacement.
• Handling the Intelligent Machine Control (iMC) system — calibrating the IMU sensor, checking blade elevation, inputting wear amounts, testing stroke and reset sensors, and adjusting blade center-ball play.
• Working safely on the fuel system, intake system, hydraulic system and electrical system, following the manual’s safety notices and handling procedures.

Who This Manual Is For

Owners, fleet mechanics, workshop technicians, and independent heavy-equipment repair shops who maintain or rebuild Komatsu D61EXi-23 or D61PXi-23 bulldozers will find this manual directly useful. It is written for someone already familiar with diesel engines and hydraulic systems who wants the manufacturer’s specifications, procedures and diagrams rather than generic advice. Because the machine integrates Komatsu’s Intelligent Machine Control (iMC) platform, sections on the control box, GNSS receiver, IMU sensor and ICT sensor controller are also included for shops supporting these advanced dozers.

Why the Correct Procedures and Specs Matter

The D61EXi-23 and D61PXi-23 rely on tight hydraulic tolerances, electronically controlled HST capacity and blade control that depends on accurate sensor calibration. Guessing at a torque figure, using the wrong fluid, or skipping a calibration step can damage the HST, degrade finished grading, or put the machine into a fault-code state that limits travel and blade function. Working from the correct standard value table, the correct tightening sequence and the correct diagnostic flow is the difference between a repair that lasts and one that returns to the shop.

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Instant PDF Delivery

The Komatsu D61EXi-23 D61PXi-23 Bulldozer Shop Manual SEN06256-02 PDF is delivered as an instant digital download — no shipping, no waiting on a physical binder. Read it on a laptop, tablet or smartphone, print only the pages you need for the job at hand, and keep the whole manual at your fingertips for as long as you own the machine.