Komatsu D31EX D31PX D37EX D37PX-21 Dozer Service Manual | 2004-2008

Complete OEM shop manual for the 2004-2008 Komatsu D31EX-21, D31PX-21, D37EX-21, and D37PX-21 crawler dozers, covering structure and function, maintenance standards, testing and adjusting, and full disassembly and assembly procedures for all major systems. Everything a technician or owner needs to service, repair, and overhaul these Komatsu blade dozers powered by the SAA4D102E-2 engine. Delivered instantly as a fully searchable PDF compatible with any device.

• Adobe Acrobat (PDF) format
• Fully searchable
• Easily print any or all content
• Everything needed to repair & maintain your machine
• Troubleshooting instructions, wiring diagrams, and reference material

• Komatsu D31EX-21 (Serial No. 50001 and up)
• Komatsu D31PX-21 (Serial No. 50001 and up)
• Komatsu D37EX-21 (Serial No. 5001 and up)
• Komatsu D37PX-21 (Serial No. 5001 and up)

• 01 General
• 10 Structure and Function, Maintenance Standard
• 20 Testing and Adjusting
• 30 Disassembly and Assembly
• 90 Others

• Complete engine disassembly and assembly procedures
• Carburetor, fuel system, and air cleaner diagnostics
• Electrical, ignition, and charging system procedures
• Cooling system inspection and maintenance
• Hydraulic system testing, pump repair, and control valve service
• Hydraulic cylinder inspection, seal replacement, and repair
• Drivetrain, final drive, and undercarriage service procedures
• Frame, chassis, and structural component service
• Troubleshooting charts and diagnostic workflows
• OEM specifications and torque tables
• High-resolution wiring and system diagrams

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