Manual Details

KOMATSU D31EX-21, D31PX-21, D37EX-21, D37PX-21, D39EX-21 (JPN) BULLDOZER OPERATION & MAINTENANCE MANUAL SN 50501-UP – PDF DOWNLOAD

This is the official Operation & Maintenance Manual for the Komatsu D31, D37, and D39 Dash 21 series (Japanese Production) Bulldozers, covering serial numbers 50501 and up (D31), 5501 and up (D37), and 1501 and up (D39). This manual is an essential safety and service guide for owners and operators using these Tier 2 EPA/EU Stage II compliant machines. It features the powerful SAA4D102E-2 turbocharged engine and the high-performance KomStat II Hydrostatic Transmission (HST) system. The manual provides specific instructions on safety, daily inspection, and routine servicing required for this production range.

The manual is designed to be kept near the machine for constant reference, focusing on the Palm Command Control System (PCCS) and the electronic monitoring panel with on-board diagnostics. It includes comprehensive data on fluid capacities, lubrication points, and the maintenance of the dual-path closed-circuit HST system. By following these factory-recommended procedures, you can maximize machine uptime, ensure operator safety, and maintain the high performance of the Komatsu SAA4D102E-2 engine and its precision hydrostatic drive system.

What this operation & maintenance manual content covers

• FOREWORD & SAFETY INFORMATION
• SAFETY LABELS AND PRECAUTIONS
• OPERATION (PCCS Controls, HST Speed Modes)
• MAINTENANCE (Lubrication, Filter Intervals, Cooling Fan Service)
• SPECIFICATIONS
• ATTACHMENTS AND OPTIONS
• REPLACEMENT PARTS
• INDEX

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Who Should Use This Manual?

This manual is the primary reference for anyone interacting with the D31/D37/D39-21 series on a daily basis. It ensures that safety standards are met and that the machine is cared for according to factory specifications.

• Equipment Operators needing to understand the KomStat II travel controls, PCCS blade handling, and the signature super-slant nose visibility features.
• Maintenance Personnel responsible for checking the SAA4D102E-2 engine, HST fluid levels, and the swing-up hydraulic cooling fan.
• Site Managers ensuring that safety protocols and regional emission guidelines for Tier 2 machines are strictly followed.
• Owners looking to protect their investment through proper machine “break-in” and long-term storage procedures.

Operation & Maintenance Manual includes:

• SAA4D102E-2 Engine Daily Inspection and Routine Service
• Hydrostatic Transmission (HST) Speed Range and Variable Selection Settings
• Full Lubrication Chart and Specialized Filter Replacement Intervals
• Electronic Monitor Panel Warning Lamp and Diagnostic Display Explanations
• Undercarriage Maintenance for Sealed and Lubricated Track (SALT)
• Safety Precautions for Operation and Maintenance including Tow Valve Procedures

Frequent Ask Questions (FAQ)

How the manual will be delivered?
This manual is delivered through your given email.

In which format the manual is?
This manual is in PDF Format and fully printable and searchable.

Is this official OEM Komatsu Manual?
Yes, this is official OEM Komatsu manual include all details with diagrams.

Is there any hidden cost?
No, there is nothing hidden everything mentioned in the product.

Does that all files are printable and searchable?
Yes, all the pdf files are fully printable and searchable.

Why choose Sure Manuals?
Sure Manuals provides accurate clear manuals and reasonable prices and discounts for our valuable customers.