Komatsu D51EX-24 & D51PX-24 Bulldozer Operation and Maintenance Manual – EENAM03560

Description

The Komatsu D51EX-24 & D51PX-24 Bulldozer Operation and Maintenance Manual – EENAM03560 is the complete factory-issued reference for operating, inspecting and maintaining the Komatsu D51EX-24 and D51PX-24 bulldozers. Covering every machine from serial D51EX-24-10001 and D51PX-24-10001 onward, this 382-page manual documents the full workflow of daily checks, safety practices, scheduled maintenance intervals, engine and hydraulic system procedures, undercarriage service, DEF handling and detailed specifications for both variants. It is written for machine operators, technicians and maintenance planners who need to run the machine correctly and service it to the intervals Komatsu specifies.

File Details

• Manual type: Operation & Maintenance Manual
• Brand / manufacturer: Komatsu
• Machine models: D51EX-24, D51PX-24 Bulldozer
• Serial numbers covered: D51EX-24-10001 and up; D51PX-24-10001 and up
• Language: English
• File format: PDF
• Page count: 382 pages
• Document number: EENAM03560
• Publication date: 01-2017
• Publisher reference: 2017 KOMATSU, Printed in Belgium

Chapters Covered

• Foreword and Read This Manual
• Safety – Safety Labels, Contents of Safety Labels, General Precautions Common to Operation and Maintenance, Precautions Before Starting Operation, Precautions for Operation, Start Engine, Precautions for Maintenance, Precautions for DEF
• Introduction – Main Use of Machine, Directions of Machine, Visibility from Operator’s Seat, Protective Structures (ROPS), Engine Technology to Conform Exhaust Gas Emission, Diesel Exhaust Fluid (DEF), Fluorinated Greenhouse Gases, Service Meter Location, Serial Numbers and Distributor, Serial Plate, Declaration of Conformity
• Operation – Explanation of Components, Machine Monitor, Controls and Gauges, Machine Operations and Controls, Checks and Adjustment Before Starting Engine, Method for Starting Engine, Method for Operations and Checks After Starting Engine, Method for Stopping Engine, Method for Starting Machine (Travel Forward and Reverse) and Stopping Machine, Shift Gears, Method for Switching Between Forward and Reverse, Method for Steering Machine, Recommended Working Modes for Works, Precautions for Operation, Precautions When Operating on Slope, Precautions for Floating Operation, Recommended Applications, Method for Adjusting Work Equipment, Tips for Longer Undercarriage Life, Method for Parking Machine, Lock, Handle Air Conditioner, Handle Radio, Transportation, Cold Weather Operation, Precautions for Long-Term Storage, Troubles and Actions
• Maintenance – Precautions for Maintenance, Standard Tightening Torque for Bolts and Nuts, Maintenance Schedule, Maintenance Procedure (When Required; Every 50, 250, 500, 1000, 2000, 4000, 4500, 8000 and 9000 Hours), Maintenance Interval When Diesel Fuel Mixed With Bio-Fuel Is Used
• Specifications – D51EX-24 and D51PX-24
• Attachments and Options – Hydraulic Ripper
• Replacement Parts – Periodic Replacement of Defined Life Parts, Consumable Parts, Recommended Fuel, Coolant and Lubricant, Lubrication Chart
• Index

Beyond the chapter list, the D51EX-24 and D51PX-24 operation and maintenance manual walks through every procedure a machine requires in its working life. Daily and pre-start checks are laid out in walk-around sequence with the checks the operator must perform before switching on the engine – coolant level, fuel level, DEF level, engine oil level, air cleaner condition, wiring inspection, dust indicator, water separator draining and brake pedal stroke testing. The machine monitor section explains every caution lamp, action level and menu screen so the operator can interpret warnings correctly and react to L01 through L04 fault levels without guesswork. Controls and gauges are documented with illustrations – fuel control dial, blade control lever, joystick (steering, directional and gear shift lever) with Palm Command Control System logic, decelerator/brake pedal, parking brake lever, work equipment lock lever and every switch on the monitor panel.

For machine operation, the manual covers forward and reverse travel, gear shifting in both quick shift and variable shift modes, steering and counter-rotation turn methods, recommended working modes for dozing, leveling, cutting into hard or frozen ground and felling trees and removing stumps. Adjustments to the blade edge angle, center ball and pitch ball are documented. Cold-weather operation, long-term storage, transportation loading and unloading with ramps and towing procedures are all included. The maintenance chapter is where this D51EX-24 and D51PX-24 manual earns its place in a workshop: standard tightening torques for metric and UNF bolts, full maintenance intervals from every 50 hours up to every 9000 hours, engine oil and filter replacement, fuel prefilter and main filter cartridge procedures, hydraulic tank and hydraulic filter service, HST oil filter, DEF filter replacement, KCCV filter element service, air cleaner cleaning and replacement, track tension adjustment, idler clearance adjustment, track shoe bolt retorquing, cutting edge and end bit inverting and radiator fin cleaning including the hydraulic fan reverse procedure. Every section lists torque values, refill capacities, adjustment tolerances and inspection criteria exactly as Komatsu publishes them.

Specifications for both D51EX-24 and D51PX-24 are provided as tables, including machine weight, overall length and width, travel speed, engine rated horsepower and ambient working range. The hydraulic ripper attachment section documents the ripper control lever, digging depth adjustment with pin-hole positions and ripper point replacement. The recommended fuel, coolant and lubricant section provides ambient-temperature charts for engine oil, power train oil, hydraulic oil, grease, DEF and Non-Amine Engine Coolant, and the lubrication chart maps every grease fitting and fluid change point. Consumable parts are listed with part numbers and intervals.

Why This Manual Matters in the Workshop

Working on a D51EX-24 or D51PX-24 without the correct procedure is expensive. The undercarriage alone – track tension, idler clearance, link pitch, grouser height – is where most wear-related costs accumulate, and each of those has a documented adjustment range and inspection interval. The engine is a Komatsu SAA6D107E-3 (D51EX-24) or SAA4D107E-3 (D51PX-24) diesel that complies with EU Stage IV emissions and uses a Urea SCR system with DEF injection, a Diesel Particulate Filter and a KCCV ventilator – all of which require specific maintenance and specific DEF quality. Getting the air filter, fuel filter, DEF filter and KCCV element replacements right protects the injectors, pump and turbocharger. Getting the brake stroke wrong affects steering and braking force. Getting the hydraulic circuit pressure relief and air bleeding wrong can damage the pump. This manual documents each of those procedures so nothing is left to memory.

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Instant PDF Delivery

The Komatsu D51EX-24 & D51PX-24 Bulldozer Operation and Maintenance Manual – EENAM03560 is delivered as an instant-download PDF once payment is complete. There is no shipping, no waiting for a paper copy and no need to keep a physical book in the cab. The file can be opened on a laptop, tablet or smartphone, printed page-by-page for the workshop and searched for torque values, capacities or fault codes when you need them. Because the manual covers both the D51EX-24 and the D51PX-24 with serial-based applicability, one download keeps both machines’ operation and maintenance procedures at hand for the lifetime of the equipment.