Description
Komatsu D31EX-22 D37EX-22 Workshop Manual provides comprehensive servicing, testing, troubleshooting and repair information for the D31EX-22, D31PX-22, D37EX-22 and D37PX-22 bulldozers.
This extensive 1,054-page workshop manual contains the technical information required to inspect the machines, diagnose faults and complete routine servicing or major repairs. It is suitable for professional engineers, plant repair workshops, fleet maintenance departments and experienced owners maintaining these Komatsu bulldozers.
Technical specifications, system descriptions, testing procedures, adjustment instructions and step-by-step repair guidance are provided throughout the manual. Illustrations, sectional drawings and diagrams assist with component identification, dismantling, inspection, reassembly and installation.
ENGINE AND ASSOCIATED SYSTEMS
The Komatsu D31EX-22 D37EX-22 Workshop Manual contains detailed information for inspecting, testing, servicing and repairing the engine and its supporting systems. Specifications and measurement information can be used to assess component condition and identify excessive wear.
Engine-related information includes:
• Engine specifications and technical data
• Cooling-system inspection and servicing
• Fuel-system components and operation
• Lubrication-system information
• Air-intake and exhaust components
• Engine testing and adjustment
• Component inspection procedures
• Engine removal and installation guidance
POWERTRAIN AND TRANSMISSION
The powertrain sections explain the construction and operation of the components responsible for transferring engine power through the machine. Testing and troubleshooting information can help identify the cause of poor performance, abnormal operation or unusual noise.
Powertrain information includes:
• Transmission and drive components
• Steering-system components
• Brake-system components
• Final-drive assemblies
• Powertrain control equipment
• Powertrain testing procedures
• Adjustment and inspection information
• Component removal and installation
• Dismantling and assembly guidance
HYDRAULIC SYSTEM
The Komatsu D31EX-22 D37EX-22 Workshop Manual provides detailed hydraulic information to help engineers understand the operating circuits and diagnose pressure, leakage or performance problems.
Hydraulic subjects include:
• Hydraulic-system specifications
• Hydraulic circuit information
• Pumps and pump-control components
• Main control valves
• Blade lift and tilt circuits
• Hydraulic cylinders and pipework
• Pressure testing and adjustment
• Leakage and performance checks
• Hydraulic troubleshooting procedures
• Component removal and installation
UNDERCARRIAGE AND WORK EQUIPMENT
The undercarriage requires regular inspection because its components operate under demanding conditions. The manual provides information for checking wear, completing adjustments and repairing the track system.
Information is provided for both EX and PX machine configurations where applicable.
Undercarriage and work-equipment subjects include:
• Track frames and track assemblies
• Track chains, shoes and links
• Track rollers and carrier rollers
• Front idlers and sprockets
• Track-tension adjustment
• Wear limits and inspection procedures
• Blade and mounting components
• Work-equipment linkages
• Pins, bushes and related components
• Removal and installation procedures
ELECTRICAL AND ELECTRONIC SYSTEMS
The electrical sections contain system information and testing procedures for diagnosing electrical and electronic faults. Diagrams and component information help engineers trace circuits and identify the correct inspection points.
Electrical and electronic information includes:
• Battery and electrical connections
• Starting and charging systems
• Switches, relays and sensors
• Warning and monitoring equipment
• Instruments and machine displays
• Electronic control components
• Wiring and electrical circuits
• Electrical testing procedures
• Fault diagnosis and troubleshooting
• Component removal and installation
TESTING AND ADJUSTMENT
The Komatsu D31EX-22 D37EX-22 Workshop Manual includes testing and adjustment information for checking the operating condition of the machines and their major systems.
Specifications, standard values and wear limits allow workshop measurements to be compared with the manufacturer’s technical information. These procedures help determine whether adjustment, repair or component replacement is required.
Testing and adjustment subjects include:
• Standard service measurements
• Pressure and performance checks
• Inspection standards and wear limits
• Engine and machine operating tests
• Adjustment procedures
• Fault symptoms and possible causes
• Recommended diagnostic checks
• Corrective action guidance
TROUBLESHOOTING AND REPAIR
Troubleshooting information guides engineers through an organised sequence of checks when investigating mechanical, hydraulic, electrical or electronic problems. This can reduce unnecessary dismantling and prevent serviceable components from being replaced.
Repair procedures explain how to remove, inspect, dismantle, assemble and reinstall major components. The correct tools, safe lifting equipment and appropriate workshop procedures should always be used during repair work.
The Komatsu D31EX-22 D37EX-22 Workshop Manual can also help engineers prepare for repairs by confirming specifications, component arrangements and inspection standards before dismantling begins.
MODELS COVERED
Komatsu D31EX-22 Bulldozer
Komatsu D31PX-22 Bulldozer
Komatsu D37EX-22 Bulldozer
Komatsu D37PX-22 Bulldozer
MANUAL DETAILS
Manual type: Workshop Manual
Format: Digital PDF
Language: English
Number of pages: 1,054
The complete machine model and identification details should be checked before purchase to confirm that this is the correct manual for the bulldozer.
This workshop manual is intended for detailed mechanical, hydraulic, electrical and electronic diagnosis and repair. The corresponding operation and maintenance manual should also be used for everyday operating instructions, safety information and routine service schedules.
The Komatsu D31EX-22 D37EX-22 Workshop Manual is an essential technical reference for owners, engineers and workshops responsible for servicing and repairing these models. It provides the specifications, diagrams and procedures needed to investigate faults and complete repairs correctly.
Keeping the Komatsu D31EX-22 D37EX-22 Workshop Manual available allows specifications, adjustment values, testing procedures and component arrangements to be checked before work begins.
Download instructions are supplied following purchase, allowing the complete digital PDF manual to be delivered electronically.
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