Yanmar 6LT Series User Manual

6LT Series Operation Manual
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TABLE OF
CONTENTS
6LT Series Operation Manual
Page
Introduction ............................................................................................. 1
Record of Ownership........................................................................... 2
Safety........................................................................................................ 3
Safety Precautions .............................................................................. 4
Product Overview.................................................................................... 9
Yanmar 6LT Common Rail Series Features and Applications ............ 9
New Engine Break-in........................................................................... 9
Component Identification................................................................... 10
Nameplates ....................................................................................... 14
Vessel Control System (VC20).......................................................... 16
Control the Backup Panel.................................................................. 22
Engine Management from Relay Box................................................ 23
Before You Operate............................................................................... 25
Diesel Fuel Specifications ................................................................. 26
Refilling.............................................................................................. 28
Engine Operation .................................................................................. 29
Preliminary Checks ........................................................................... 30
For Proper Use of the Engine............................................................ 30

Yanmar 6LT Series Specifications

General

Combustion System	Direct injection
Aspiration	Turbocharged
Cooling System	Water-cooled
Starting System	Electric starter
Lubrication System	Forced lubricating

Summary

Introduction

Record of Ownership

Section to record engine model, serial number, purchase date, and dealer information.

Safety

Hazard Definitions and Safety Alerts

Explains hazard levels (DANGER, WARNING, CAUTION, NOTICE) and safety alert symbols.

General Safety Precautions

Covers general safety guidelines and precautions before operation.

Operation and Maintenance Safety

Details safety warnings related to engine operation and maintenance hazards.

Product Overview

Engine Series Overview

Key features, applications, and initial break-in recommendations for the 6LT series engines.

Component Identification

Visual identification of engine parts from various views (right, left, front, rear).

Nameplates and Data

Information on engine nameplates, including family, serial number, and power ratings.

Vessel Control System (VC20)

Detailed explanation of the VC20 electronic control system and its components.

Operator Controls and Safety

Operation of the switch panel, emergency stop, and other operator controls.

Before You Operate

Introduction and Safety

Overview of the section and reminder to review safety precautions.

Fuel Specifications and Requirements

Detailed specifications for diesel and biodiesel fuels, including additives and quality standards.

Refilling Capacities

Information on engine coolant and lubrication oil capacities for refilling.

Engine Operation

Pre-Start Checks and Proper Use

Essential checks before starting and guidelines for optimal engine usage.

Special Operational Warnings

Critical warnings regarding high coolant temperature, burn hazards, and oil pressure.

Starting the Engine (VC20)

Step-by-step guide to starting the engine using the VC20 system.

Throttle and Shift Control

Detailed instructions on operating the throttle and gear shift controls.

Operational Cautions and Shutdown

Important operational cautions and safe engine shutdown procedures.

Inspection and Maintenance

Importance of Checks and Logs

Emphasizes the importance of daily checks and maintaining engine hour logs.

Periodic Maintenance Importance

Explains why periodic maintenance is crucial for engine longevity and reliability.

Maintenance Schedule and Procedures

Comprehensive schedule and detailed procedures for engine maintenance tasks.

Specifications

Principle Engine Specifications

Key technical specifications for the Yanmar 6LT engine models.

EPA Warranty USA Only

Warranty Rights, Obligations, and Coverage

Owner rights, obligations, warranty period, and coverage for the emission control system.

Warranty Exclusions and Owner Responsibility

Conditions excluded from warranty and owner's duties for maintenance and claims.

EU Declaration of Conformity

Declaration of Conformity

Official declaration of engine conformity with Recreational Craft Regulations.