Table of Contents
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Operation &
Maintenance Manual
D31EX, PX-21
D37EX, PX-21
D39EX, PX-21
BULLDOZER
SERIAL NUMBER
D31EX-21
D31PX-21
D37EX-21
D37PX-21
D39EX-21
D39PX-21
WARNING
Unsafe use of this machine may cause serious injury or
death. Operators and maintenance personnel must read
this manual before operating or maintaining this
machine. This manual should be kept inside the cab for
reference and periodically reviewed by all personnel who
will come into contact with the machine.
- 50501 and up
- 50501 and up
- 5501 and up
- 5501 and up
-1501 and up
-1501 and up
EEAM023900
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Table of Contents
Troubleshooting
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Summarization of Contents
FOREWORD
SAFETY INFORMATION
Safety precautions, warnings, and labels for operating the machine.
INTRODUCTION
Overview of the machine's capabilities and directional terminology.
NECESSARY INFORMATION
Details on product identification, serial numbers, and distributor contacts.
SAFETY
SAFETY LABELS
Explains the meaning and location of safety labels and pictograms on the machine.
GENERAL PRECAUTIONS
Covers essential safety rules, personal protective equipment, and fire prevention.
PRECAUTIONS FOR OPERATION
Guidelines for safe starting, operation, travel, and parking.
PRECAUTIONS FOR MAINTENANCE
Safety measures to take before, during, and after maintenance tasks.
OPERATION
GENERAL VIEW OF MACHINE
Visual overview of the machine's main external components.
GENERAL VIEW OF CONTROLS AND GAUGES
Identification and function of the operator's controls and instrument panel gauges.
EXPLANATION OF COMPONENTS
Detailed descriptions of various machine systems and controls.
CHECK BEFORE STARTING ENGINE, ADJUST
Essential daily checks and adjustments before starting the engine.
STARTING ENGINE
Step-by-step instructions for safely starting the engine.
STOPPING ENGINE
Procedures for properly shutting down the machine's engine.
MACHINE OPERATION
Covers basic machine movements like moving, stopping, and shifting.
PARKING MACHINE
Procedures for safely parking the machine, including on slopes.
TRANSPORTATION
Guidelines for loading, unloading, and securing the machine for transport.
COLD WEATHER OPERATION
Precautions and procedures for operating the machine in low temperatures.
LONG-TERM STORAGE
Instructions for preparing and maintaining the machine during long-term storage.
TROUBLESHOOTING
Guides users through diagnosing and resolving common operational issues.
MAINTENANCE
GUIDE TO MAINTENANCE
General principles and important notes for performing maintenance.
OUTLINE OF SERVICE
Information on fluids, lubricants, oil analysis, and fuel handling.
WEAR PARTS LIST
Lists common wear parts and their replacement intervals.
USE OF FUEL, COOLANT AND LUBRICANTS ACCORDING TO AMBIENT TEMPERATURE
Recommends appropriate fluids and lubricants based on ambient temperature.
STANDARD TIGHTENING TORQUES FOR BOLTS AND NUTS
Specifies torque values for critical bolts and nuts to ensure proper assembly.
PERIODIC REPLACEMENT OF SAFETY CRITICAL PARTS
Identifies safety-critical components that require scheduled replacement.
MAINTENANCE SCHEDULE CHART
Outlines required maintenance tasks at different service intervals.
SERVICE PROCEDURE
Detailed step-by-step instructions for performing various maintenance tasks.
SPECIFICATIONS
SPECIFICATIONS
Technical data, dimensions, and performance specifications for machine models.
ATTACHMENTS, OPTIONS
GENERAL PRECAUTIONS
General safety guidelines applicable to installing attachments and options.
HANDLING HYDRAULIC RIPPER
Instructions for operating and maintaining the hydraulic ripper attachment.
DELUXE SEAT
Details on adjusting the operator's deluxe seat for optimal comfort and safety.
HEADREST
Instructions for the removal of the headrest.
EQUIPPING FIRE EXTINGUISHER AND FIRST-AID KIT
Guidance on installing safety equipment like fire extinguishers and first-aid kits.
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