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Komatsu 4D106 Series User Manual

Komatsu 4D106 Series
280 pages
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SHOP MANUAL
WEBMTNV000
DIESEL ENGINE
3D82AE SERIES
3D84E SERIES
3D88E SERIES
4D88E SERIES
4D98E SERIES
4D106 SERIES
S4D84E SERIES
S4D98E SERIES
S4D106 SERIES
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Komatsu 4D106 Series Specifications

General IconGeneral
Engine Model4D106 Series
Number of Cylinders4
Cooling SystemWater-cooled
Starting SystemElectric starter
Bore x Stroke106 mm x 125 mm
Displacement4.4 L
AspirationNaturally aspirated
Lubrication SystemForced lubrication
Type4-cycle, water-cooled, in-line

Summary

Safety Labels and Warnings

General Safety Precautions

Operational and Environmental Safety

Safety measures for fasteners, electrical systems, and hazardous waste disposal.

Further Operational Safety

Additional safety measures for fueling, hot surfaces, rotating parts, and burn prevention.

Engine Disassembly, Inspection, and Reassembly

Complete Disassembly and Reassembly Overview

General procedures, special tools, and precautions for engine disassembly and reassembly.

Cylinder Head Service Procedures

Detailed steps for cylinder head disassembly, inspection, and reassembly.

Fuel Injection Pump and Governor Service

Pump Components and Disassembly

Identification of fuel injection pump parts and step-by-step disassembly procedures.

Pump Assembly and Servicing

Procedures for reassembling the fuel injection pump and key servicing checks.

Turbocharger Service Procedures

Turbocharger Troubleshooting Guide

Diagnosing and resolving common turbocharger faults like smoke, noise, and output issues.

Starting Motor Service Procedures

Starting Motor Troubleshooting Guide

Flowcharts and guidance for diagnosing and resolving starting motor issues.

Alternator Service Information

Alternator Inspection and Troubleshooting

Procedures for inspecting V-belts, wiring, charge lamp, and troubleshooting alternator faults.

Electric Wiring Precautions

Service Standards Reference

Torque Specifications for Bolts and Nuts

Main Engine Bolts and Nuts Torque

Critical tightening torque values for major engine bolts like cylinder head and connecting rod.

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