Komatsu D275A-5R Bulldozer Operation and Maintenance Manual

This manual provides essential guidance for operators and maintenance personnel to ensure safe, efficient, and reliable machine performance. This comprehensive manual includes detailed operating instructions, safety guidelines, maintenance schedules for the D275A-5R model.

Designed to improve machine uptime and extend equipment life, it covers daily checks, periodic servicing, and component care. Ideal for field use and workshops, this manual is a valuable resource for maximizing productivity while minimizing downtime and repair costs.

Cover
Foreword
Read This Manual
Safety Information
Introduction
Use of Machine
Front/rear, Left/right Directions of Machine
Visibility From Operator’s Seat
Necessary Information
Product Identification Number (Pin), Machine Serial No. Plate
Engine Serial Number Plate
Blade Serial No. Plate Position
Ripper Serial No. Plate Position
Rops, Fops No. Plate Position
Position of Service Meter
Table to Enter Serial No. And Distributor
Contents
Safety
Safety
Safety Labels
Positions of Safety Pictograms
Safety Labels
General Precautions Common to Operation and Maintenance
Precautions Before Starting Operation
Preparations for Safe Operation
Fire Prevention
Precautions When Getting on or Off Machine
Do Not Get Caught in Work Equipment
Precautions Related to Protective Structures
Unauthorized Modification
Precautions Related to Attachments and Options
Precautions When Running Engine Inside Building
Precautions for Operation
Precautions for Jobsite
Starting Engine
Operation
Transportation
Towing
Precautions for Maintenance
Precautions Before Starting Inspection and Maintenance
Precautions for Inspection and Maintenance
Operation
General View
General View of Machine
General View of Controls and Gauges
Explanation of Components
Front Panel
Switches
Control Levers, Pedals
Dust Indicator
Power Source
Fuse Box
Door Open Lock
Sash Glass Intermediate Lock
Cap With Lock
Door Pocket
Ashtray
Tool Box
Car Stereo, Handling
Air Conditioner, Handling
Operation
Check Before Starting Engine, Adjust
Starting Engine
Operations and Checks After Starting Engine
Stopping Engine
Moving Machine
Stopping Machine
Shifting Gear
Shifting Between Forward and Reverse
Steering Machine
Precautions for Operation
Parking Machine
Check After Stopping Engine
Check After Finishing Work
Locking
Work Possible Using Bulldozer
Ripper Operation
Operating Method for Ripping Operations
Adjusting Posture of Work Equipment
Tips for Longer Undercarriage Life
Transportation
Transportation Procedure
Loading, Unloading Work
Method of Lifting Machine
Installation of Cab
Installation of Rops
Cold Weather Operation
Precautions for Low Temperature
After Completion of Work
After Cold Weather
Long-term Storage
Before Storage
During Storage
After Storage
Starting Machine After Long-term Storage
Troubleshooting
After Running Out of Fuel
Method of Towing Machine
If Battery is Discharged
Other Trouble
Maintenance
Guides to Maintenance
Outlines of Service
Handling Oil, Fuel, Coolant, and Performing Oil Clinic
Outline of Electric System
Wear Parts
Wear Parts List
Recommended Fuel, Coolant, and Lubricant
Recommended Brands, Recommended Quality for Products Other Than Komatsu Genuine Oil
Standard Tightening Torques for Bolts and Nuts
Torque List
Periodic Replacement of Safety Critical Parts
Safety Critical Parts
Maintenance Schedule Chart
Maintenance Schedule Chart
Service Procedure
Initial 250 Hours Service (Only After the First 250 Hours)
When Required
Check Before Starting
Every 250 Hours Service
Every 500 Hours Service
Every 1000 Hours Service
Every 2000 Hours Service
Every 4000 Hours Service
Every 8000 Hours Service
Specifications
Specifications
Attachments, Options
General Precautions
Precautions Related to Safety
Selection of Track Shoe
Selection of Track Shoes
Procedure for Selecting Ripper Point
Procedure for Selecting Ripper Point
Effective Method of Operation for Dual Tiltdozer
Blade Condition
Dozing Work
Leveling (Spreading) Operation
Ditching Operation
Boulder Raising Operation
Side-cutting Operations
Horizontal Dozing Operations From Side Slope (Rough Ground)
Shoe Slip Control
Mode Selection Switch Panel (Shoe Slip Control)
Effective Use of Mode Selection System
If Mode Selection System Flashes
Handling Machines Equipped With Komtrax
Basic Precautions
Index

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