This factory service manual covers structure and function, testing and adjusting, disassembly and assembly and maintenance standards.

Please Note: The print quality of this manual is poor.  Some information is difficult to read.  This is the only manual available from Komatsu.

Komatsu Models Covered:

• D20A-5 Serial: 45001 and up
• D20P-5 Serial: 45003 and up
• D20PL-5 Serial: 45001 and up
• D21A-5 Serial: 45001 and up
• D21P-5 Serial: 45003 and up
• D21PL-5 Serial: 45001 and up

Contents:

• General Information & Specifications
• Engine
• Intake & Exhaust System
• Engine body
• Lubrication system
• Fuel system
• Cooling system
• Powertrain
• Main clutch & Inertia brake
• Transmission
• Damper & Universal Joint
• Steering
• Undercarriage
• Track shoe
• Idler
• Carrier roller, track roller
• Recoil Spring
• Track frame
• Hydraulic system

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