Komatsu D120A-18, D125A-18 Workshop Manual PDF (S/N D120A-18: 2540-UP)

Download the official Komatsu workshop manual for the D120A-18, D125A-18 bulldozer in convenient PDF format.
This professional service guide includes everything you need to repair, rebuild, and maintain your dozer with confidence — perfect for mechanics, technicians, and equipment owners.

Manual Includes:
✔️ Engine & Cooling System – Specs, EGR system, turbo, oil pressure
✔️ Power Train – HST pump & motor, brake controls, final drive
✔️ Hydraulics – Blade/ripper controls, cylinders, EPC valves
✔️ Electrical – Full wiring diagrams, KOMTRAX diagnostics, sensors
✔️ Disassembly & Assembly – Step-by-step rebuild procedures
✔️ Maintenance Standards – Wear limits, torque specs, inspection values

Compatible with:
✔️ Komatsu D120A-18, D125A-18
Serial Number Range: D120A-18: 2540-UP

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