Description
Komatsu D51EXi Workshop Manual covering D51EXi-22 and D51PXi-22 crawler bulldozers provides comprehensive technical information for servicing, maintenance, testing, troubleshooting, adjustment, repair and overhaul.
This extensive 1587-page workshop manual is a valuable technical reference for owners, mechanics, engineers, technicians, contractors and professional plant repair workshops working on Komatsu D51EXi-22 and D51PXi-22 bulldozers.
The Komatsu D51EXi Workshop Manual provides detailed information for routine maintenance through to complex fault diagnosis and major component repair. It covers the principal workshop areas including specifications, structure and function, standard values, testing and adjusting, troubleshooting, disassembly and assembly and other technical information.
MODELS COVERED
• Komatsu D51EXi-22
• Komatsu D51PXi-22
MANUAL DETAILS
• Manufacturer: Komatsu
• Models: D51EXi-22 and D51PXi-22
• Series: D51 -22
• Machine type: Crawler Bulldozer
• Manual type: Workshop Manual
• Pages: 1587
• Format: Digital PDF
KOMATSU D51EXi WORKSHOP MANUAL INFORMATION
The Komatsu D51EXi Workshop Manual provides detailed technical information required when maintaining, diagnosing and repairing D51EXi-22 and D51PXi-22 crawler bulldozers.
These machines operate in demanding construction and earthmoving conditions and are subjected to heavy loads, vibration, dirt, dust and long working periods. Accurate technical information is therefore important when carrying out maintenance or repair work.
The manual can be consulted before dismantling components to understand how the relevant machine system operates. During repairs it provides specifications and workshop procedures, and it can be referred to again during reassembly, adjustment and final testing.
SPECIFICATIONS
Technical specifications provide an important reference when assessing machine condition or diagnosing an operating problem.
Workshop specifications allow actual measurements and operating values to be compared with the correct technical data.
This information can help determine whether a component is operating normally or whether further adjustment, inspection or repair is required.
STRUCTURE AND FUNCTION
Understanding the structure and operation of a machine system is particularly valuable during fault diagnosis.
The manual provides technical information explaining the relationship between major systems and components.
This helps technicians understand how the machine should operate before beginning testing or replacing components.
STANDARD VALUE TABLES
Standard values provide important reference information for testing and diagnosis.
Measurements taken from the machine can be compared with the appropriate workshop values to help identify abnormal operation.
This can be especially useful when investigating performance problems where the cause is not immediately apparent.
TESTING AND ADJUSTING
Testing and adjustment procedures form an important part of professional machine diagnosis and repair.
The Komatsu D51EXi Workshop Manual provides technical information that can assist when checking machine systems and determining whether adjustment or further repair is necessary.
After repair work has been completed, relevant specifications and procedures can also be used when carrying out final adjustments and checks.
TROUBLESHOOTING AND FAULT DIAGNOSIS
Fault diagnosis can be one of the most difficult parts of heavy equipment repair.
Mechanical, hydraulic, electrical and machine control systems work together, meaning that a symptom appearing in one area may sometimes originate elsewhere.
The workshop manual provides structured technical information to assist with systematic fault diagnosis rather than relying on trial and error.
Correct troubleshooting can reduce workshop time and help avoid unnecessary replacement of serviceable components.
DISASSEMBLY AND ASSEMBLY
Major repair work frequently requires components or complete assemblies to be removed and dismantled.
Correct procedures are important when taking assemblies apart and when rebuilding them after inspection or repair.
The manual provides workshop information for applicable disassembly and assembly procedures, helping technicians carry out major repairs in a logical sequence.
REPAIR AND OVERHAUL INFORMATION
With 1587 pages, this is a substantial technical manual suitable for routine workshop work as well as extensive component repair and overhaul.
Repair procedures may require assemblies to be dismantled, individual components inspected, wear checked, damaged parts replaced and the assembly correctly rebuilt.
Technical information within the manual may assist with systems and components including:
• Engine and cooling system
• Power train
• Transmission and drivetrain
• Steering and braking
• Undercarriage and frame
• Hydraulic systems
• Work equipment
• Blade equipment
• Electrical systems
• Electronic controls
• Sensors and instrumentation
• Testing and adjustment
• Troubleshooting
• Disassembly and assembly
• General service information
ENGINE AND COOLING SYSTEM
Correct engine and cooling system operation is fundamental to bulldozer performance and reliability.
Problems in these areas can result in reduced performance, overheating or other operating difficulties.
The workshop manual provides technical information to assist with applicable inspection, testing, servicing and repair procedures.
POWER TRAIN AND DRIVE SYSTEM
The power train transfers engine power through the machine and is essential to crawler bulldozer performance.
Wear, incorrect adjustment or component failure can cause poor performance, abnormal operation or loss of drive.
The Komatsu D51EXi Workshop Manual provides a valuable technical reference when diagnosing drivetrain problems and carrying out inspection, repair and adjustment work.
HYDRAULIC SYSTEM
Hydraulic systems operate important machine and work equipment functions.
Weak, slow or irregular operation can be caused by component wear, contamination, incorrect settings or faults elsewhere within the hydraulic system.
Correct technical information allows pressures, operating values and components to be checked systematically before major parts are removed or replaced.
The manual can assist with hydraulic testing, adjustment, diagnosis and repair procedures covered by the original publication.
UNDERCARRIAGE AND FRAME
Crawler bulldozer undercarriage components operate under extremely demanding conditions.
Tracks, rollers, idlers, sprockets, final drives and associated components are subjected to continuous loads and wear.
Regular inspection is important, and the workshop manual provides useful technical information when assessing component condition and carrying out relevant repair work.
WORK EQUIPMENT
The blade and associated work equipment are subjected to heavy working loads throughout normal bulldozer operation.
Correct maintenance, inspection and repair are important for dependable operation.
The workshop manual provides technical information for work equipment and associated systems covered by the original publication.
ELECTRICAL AND MACHINE CONTROL SYSTEMS
Electrical and electronic control systems can make accurate technical information particularly important during fault diagnosis.
Problems involving sensors, wiring, controls or instrumentation can be difficult to identify without understanding the correct system operation.
The Komatsu D51EXi Workshop Manual provides useful information for investigating electrical and control system faults and carrying out appropriate testing.
KOMATSU D51EXi-22
The Komatsu D51EXi-22 crawler bulldozer is specifically covered by this workshop manual.
Correct identification of the complete model is important because specifications, systems and workshop procedures can differ between standard D51EX machines and D51EXi versions.
KOMATSU D51PXi-22
The Komatsu D51PXi-22 crawler bulldozer is also covered.
Owners and repair workshops maintaining either the D51EXi-22 or D51PXi-22 therefore have extensive technical information available within this 1587-page workshop reference.
WHO IS THIS MANUAL FOR?
This workshop manual is suitable for:
• Komatsu D51EXi and D51PXi owners
• Plant mechanics
• Heavy equipment technicians
• Construction equipment engineers
• Earthmoving contractors
• Agricultural contractors
• Independent plant repair workshops
• Fleet maintenance departments
• Machinery repair specialists
• Owners carrying out their own servicing and repairs
WHY THE CORRECT D51EXi MANUAL MATTERS
Komatsu produced several versions and generations of the D51 crawler bulldozer, including standard and intelligent machine control variants.
Although machines can appear similar, specifications, components, controls and workshop procedures may differ between models.
This manual specifically covers the Komatsu D51EXi-22 and D51PXi-22.
Using workshop information appropriate to the correct machine model can save considerable time during fault diagnosis and repair and helps ensure that the correct technical procedures and specifications are being followed.
DIGITAL PDF WORKSHOP MANUAL
The digital PDF format makes this large technical manual convenient for regular workshop use. It can be stored on a desktop computer, laptop or suitable portable device and referred to whenever technical information is required.
With 1587 pages of detailed workshop information, the Komatsu D51EXi Workshop Manual provides a comprehensive technical reference for servicing, maintaining, testing, troubleshooting, repairing and overhauling D51EXi-22 and D51PXi-22 crawler bulldozers.
Whether carrying out routine maintenance, diagnosing a machine fault, testing hydraulic or electrical systems, repairing drivetrain components or undertaking a major overhaul, this manual provides valuable workshop information for these Komatsu D51 -22 Series bulldozers.
Digital PDF workshop manual.
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