Description
Komatsu D31EX-21 D31PX-21 D37EX-21 D37PX-21 Workshop Manual provides comprehensive service, repair, maintenance, troubleshooting and overhaul information for these Komatsu crawler bulldozers.
This detailed 464-page workshop manual is a valuable technical reference for owners, mechanics, engineers and professional workshops responsible for maintaining and repairing Komatsu D31EX-21, D31PX-21, D37EX-21 and D37PX-21 bulldozers.
The manual contains the technical information required for routine servicing, fault diagnosis, adjustment, component repair and major overhaul work. It is particularly useful when dismantling and rebuilding machine components because the workshop procedures and specifications can be consulted throughout the repair.
Models Covered
• Komatsu D31EX-21
• Komatsu D31PX-21
• Komatsu D37EX-21
• Komatsu D37PX-21
Manual Details
• Manual type: Workshop Manual
• Manufacturer: Komatsu
• Machine type: Crawler Bulldozer
• Series: D31 and D37
• Pages: 464
• Format: Digital PDF
Workshop Service and Repair Information
The Komatsu D31EX-21 D31PX-21 D37EX-21 D37PX-21 Workshop Manual is designed to provide the workshop information required when servicing and repairing these machines.
A proper workshop manual is particularly valuable when diagnosing mechanical, hydraulic or electrical problems. Instead of relying on trial and error, the mechanic can refer to the appropriate technical information, specifications and workshop procedures before dismantling components or making adjustments.
The manual can assist with routine maintenance as well as more involved workshop repairs. It provides a technical reference when inspecting components for wear, identifying possible causes of faults and determining the correct procedure for repair and reassembly.
Service information is also useful when a bulldozer has been purchased second-hand and its previous maintenance history is unknown. The manual gives the owner or technician a reliable reference when inspecting the machine and planning servicing or repair work.
Repair and Overhaul Reference
These Komatsu D31 and D37 crawler bulldozers contain a number of major mechanical and hydraulic systems which must operate correctly together. When repairs are required, access to the correct workshop information can make a substantial difference to the time required to diagnose and rectify a problem.
The manual provides information useful when carrying out dismantling, inspection, adjustment, repair and reassembly procedures. It can also be consulted during major component overhaul work where correct specifications and procedures are particularly important.
Depending upon the section of the original manual being consulted, workshop information may cover areas associated with the engine, power train, transmission, steering, brakes, undercarriage, hydraulic equipment, work equipment, electrical system, controls and general machine servicing.
The manual should always be used in conjunction with normal workshop safety procedures, suitable tools and appropriate service equipment.
Troubleshooting and Fault Diagnosis
Fault finding on a crawler bulldozer can be difficult without accurate technical information. A symptom in one part of the machine can sometimes be caused by a problem elsewhere in the system.
The Komatsu D31EX-21 D31PX-21 D37EX-21 D37PX-21 Workshop Manual provides a useful starting point for systematic diagnosis. Specifications and service information can be used to help determine whether components are operating correctly before unnecessary parts are replaced.
This can be particularly useful for workshops maintaining older machines where dealership support or printed technical literature may no longer be readily available.
Maintenance and Adjustment
Regular maintenance is essential to the reliability and working life of construction machinery. Bulldozers frequently operate in demanding conditions involving dust, mud, heavy loads and prolonged operation.
Correct servicing and adjustment can help prevent minor wear or deterioration developing into more expensive failures.
The workshop manual can be used when carrying out inspections, servicing and adjustments and when checking machine condition during planned maintenance.
It is also valuable after repairs have been completed because specifications and adjustment information can be checked before the machine is returned to work.
D31EX-21 and D31PX-21 Models
The D31EX-21 and D31PX-21 models form part of Komatsu’s D31 crawler bulldozer range. This manual provides workshop information applicable to these specific -21 series machines.
Using a manual that identifies the correct model series is important because specifications, components and service procedures can differ between generations of apparently similar Komatsu machines.
D37EX-21 and D37PX-21 Models
The manual also covers the Komatsu D37EX-21 and D37PX-21 crawler bulldozers.
Owners and technicians working on D37 machines therefore have the relevant D37EX-21 and D37PX-21 workshop information included within the same 464-page manual.
Who Is This Manual For?
This workshop manual is suitable for:
• Komatsu bulldozer owners
• Plant and construction engineers
• Agricultural and earthmoving contractors
• Independent repair workshops
• Professional mechanics and technicians
• Fleet maintenance departments
• Machinery restorers
• Owners carrying out their own servicing and repairs
It can be used as a day-to-day workshop reference or retained for occasions when more extensive repair or overhaul work becomes necessary.
Why the Correct Komatsu Workshop Manual Matters
Komatsu has produced many different versions and generations of the D31 and D37 bulldozer. A generic D31 or D37 manual may therefore not contain the correct information for a particular machine.
This manual specifically identifies the D31EX-21, D31PX-21, D37EX-21 and D37PX-21 models. Checking the machine model before beginning repair work helps ensure that the appropriate workshop information is being used.
The Komatsu D31EX-21 D31PX-21 D37EX-21 D37PX-21 Workshop Manual provides 464 pages of technical information in one convenient PDF reference.
It is suitable for routine maintenance, troubleshooting, workshop repair, component inspection, adjustment, dismantling, reassembly and overhaul work on the covered Komatsu bulldozers.
For anyone responsible for keeping one of these machines working, having the correct workshop manual available can save considerable time when a fault occurs and provide essential technical information during servicing and repair.
Digital PDF workshop manual.
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