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Yanmar 4JH3E User Manual

Yanmar 4JH3E
48 pages
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Table of Contents

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Yanmar 4JH3E Specifications

General IconGeneral
Engine Model4JH3E
Number of Cylinders4
AspirationNaturally aspirated
Cooling SystemFresh water cooling with heat exchanger
Fuel SystemDirect injection
Engine Type4-stroke, water-cooled, diesel
Bore x Stroke84 mm
Starting SystemElectric
Lubrication SystemForced lubrication
RotationCounterclockwise, viewed from flywheel side

Summary

Yanmar Marine Diesel Engine Operation Manual

California Proposition 65 Warning

A warning regarding diesel engine exhaust and its constituents.

For Your Safety

Warning Symbols

Explains the meaning of various safety symbols used in the manual.

Safety Precautions

Essential safety instructions for operating and maintaining the engine.

Warning Labels

Identifies the location and part numbers of warning labels on the engine.

Product Explanation

Use, Driving System, etc.

Overview of engine application and drive system integration.

Detail of Name Plate

Information on identifying engine and marine gear by their nameplates.

Engine Specifications

Detailed technical specifications for various engine models.

Names of Parts

Identifies and labels key components on the engine's operation and non-operation sides.

Major Servicing Parts

Lists and defines the function of essential parts for servicing and maintenance.

Control Equipment

Details the components for remote operation, including the control panel.

Single Lever Remote Control Handle

Explains the operation of the optional Morse type single lever remote control.

Stopping Equipment

Describes manual and electric methods for stopping the engine.

Operation

Fuel Oil, Lube Oil, and Cooling Water

Guidelines for selecting and handling essential engine fluids.

Before Initial Operation

Procedures to perform before the engine's first use, including fluid supply.

Cranking

Procedure for distributing lube oil by cranking the engine before starting.

Check and Resupply Lube Oil and Cooling Water

Steps for checking and refilling fluids after a trial engine run.

Operating Your Engine

Daily inspections and checks required before starting the engine.

How to Start the Engine

Step-by-step guide for starting the engine using the electric system.

Engine Operation and Controls

Procedures for accelerating, decelerating, and engaging/disengaging the clutch.

Cautions During Operation and Stopping

Critical operational warnings to prevent damage or injury.

Long Term Storage

Steps for preparing the engine for extended periods of non-use.

Maintenance & Inspection

General Inspection Rules

Guidelines for performing periodic inspections and using genuine parts.

List of Periodic Inspection Items

An overview of inspection and servicing tasks based on usage intervals.

Periodic Inspection Items

Detailed procedures for initial inspections and maintenance tasks.

Inspection on Initial 50 Hrs. of Operation (or after 1 Month)

First-time replacement of engine oil, lube filter, and clutch lube oil.

Inspection Every 50 Hours (or Monthly)

Routine checks and maintenance performed every 50 operating hours.

Adjusting the Remote Control Cable

Procedures for checking and adjusting remote control cable tension for proper operation.

Inspection Every 150 hours.

Maintenance tasks including oil and filter replacement at 150-hour intervals.

Inspection Every 300 Hrs.

Fuel filter replacement and V-belt tension adjustment at 300-hour intervals.

Inspection Every 600 Hrs.

Procedures for replacing fresh water cooling and inspecting seawater pump parts.

EPA Requirements

Conditions and requirements for compliance with EPA emission standards.

EPA Certification Plate Information

Information about the engine's EPA certification plate and its attachment position.

Emission Compliance Conditions

Specifies surrounding conditions and fluids for meeting emission standards.

EPA Related Inspection and Maintenance

Specific inspection and maintenance tasks for EPA-related parts.

Trouble and Troubleshooting

Alarm Buzzer and Lamps On During Operation

Troubleshooting steps when alarm indicators are active during operation.

Engine Lube Oil Pressure Warning Lamp

Steps to take when the engine lube oil pressure warning lamp is illuminated.

Starting Failures

Common causes and solutions for engine starting problems.

Abnormal Exhaust Colour

Diagnosing and addressing issues causing abnormal exhaust smoke colors.

WARRANTY SERVICE

Information on owner satisfaction and procedures for warranty claims and dealer interaction.

Piping Diagram

NOTATION

Key to symbols used in the piping diagrams.

NOTES:

Specific notes and clarifications regarding the piping diagrams.

Wiring Diagrams

Colour coding for wiring diagrams

Key for understanding wire colors used in electrical diagrams.

Declaration of Conformity

DESCRIPTION OF ENGINE(s) AND ESSENTIAL REQUIERMENTS

Details of engine models and their compliance with essential requirements.

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