Yanmar 2YM15 Manuale utente

series

OPERATION MANUAL

2YM15

3YM20

3YM30

P/N: 0AYMM-G00100

MARINE

ENGINES

Disclaimers:

All information, illustrations and specifications in this manual are based on the latest

information available at the time of publishing. The illustrations used in this manual are

intended as representative reference views only. Moreover, because of our continuous

product improvement policy, we may modify information, illustrations and / or specifications

to explain and / or exemplify a product, service or maintenance improvement. We reserve

the right to make any change at any time without notice. Yanmar and are

registered trademarks of Yanmar Co., Ltd. in Japan, the United States and / or other

countries.

No part of this publication may be reproduced or used in any form by any means - graphic,

electronic, or mechanical, including photocopying, recording, taping, or information storage

and retrieval systems - without the written permission of Yanmar Marine International.

0907

ii YM Series Operation Manual

TABLE OF

CONTENTS

Page

Introduction .............................................................. 1

Record of Ownership .............................................. 2

Safety ....................................................................... 3

Safety Precautions ................................................. 4

General Information ......................................... 4

Before You Operate ......................................... 4

During Operation and Maintenance ..................... 4

Location of Safety Decals ........................................ 8

Product Overview ...................................................... 9

Yanmar YM Features and Applications ....................... 9

New Engine Break-In ...................................... 10

Component Identification ........................................ 11

Service Side - 2YM15 ..................................... 11

Non-Service Side - 2YM15 ............................... 11

Service Side - 3YM20 ..................................... 12

Non-Service Side - 3YM20 ............................... 12

Service Side - 3YM30 ..................................... 13

Non-Service Side - 3YM30 ............................... 13

Location of Nameplates .......................................... 14

Function of Major Components ................................ 15

Control Equipment ................................................ 16

Instrument Panel (Optional) .............................. 16

Single-Lever Remote Control Handle .................. 19

Before You Operate .................................................. 21

Diesel Fuel .......................................................... 21

Diesel Fuel Specifications ................................ 21

Filling the Fuel Tank ........................................ 24

Bleeding the Fuel System ................................ 25

YM Series Operation Manual iii

Engine Oil ........................................................... 26

Engine Oil Specifications ................................. 26

Engine Oil Viscosity ........................................ 26

Checking the Engine Oil .................................. 27

Adding Engine Oil .......................................... 27

Marine Gear or Sail Drive Oil ................................... 28

Marine Gear Oil Specifications .......................... 28

Sail Drive Oil Specifications - SD20 .................... 28

Checking Marine Gear Oil ................................ 28

Adding Marine Gear Oil ................................... 29

Checking and Adding Sail Drive Oil .................... 29

Engine Coolant ..................................................... 29

Engine Coolant Specifications ........................... 29

Checking and Adding Coolant ........................... 30

Cranking the Engine .............................................. 32

Daily Checks ....................................................... 33

Visual Checks ............................................... 33

Checking Diesel Fuel, Engine Oil and Engine

Coolant Levels .............................................. 34

Checking and Refilling Marine Gear Oil ............... 34

Checking the Battery Electrolyte Level ................ 34

Checking the Alternator Belt ............................ 34

Checking the Remote Control Handle ................. 34

Checking the Alarm Indicators ........................... 34

Preparing Fuel, Oil and Coolant in Reserve .......... 34

Engine Operation ...................................................... 35

Starting the Engine ................................................ 36

Restarting After Starting Failure ......................... 37

Starting at Low Temperatures ........................... 37

After the Engine Has Started ............................. 38

Remote Control Handle Operation ............................ 39

Acceleration and Deceleration .......................... 39

Shifting the Engine ......................................... 39

Shutting Down the Engine ....................................... 40

Emergency Shutdown ..................................... 40

Checking the Engine After Operation ......................... 41

Periodic Maintenance ................................................ 43

Safety Precautions ................................................ 43

Precautions ......................................................... 45

The Importance of Periodic Maintenance ............. 45

Performing Periodic Maintenance ...................... 45

The Importance of Daily Checks ........................ 45

TABLE OF CONTENTS

iv YM Series Operation Manual

Keep a Log of Engine Hours and Daily Checks ..... 45

Yanmar Replacement Parts .............................. 45

Tools Required .............................................. 45

Ask Your Authorized Yanmar Marine Dealer or

Distributor For Help ........................................ 45

Tightening Fasteners ...................................... 46

EPA Maintenance Requirements .............................. 47

EPA Requirements for USA and Other Applicable

Countries ..................................................... 47

Conditions to Ensure Compliance with EPA

Emission Standards ........................................ 47

Inspection and Maintenance ............................. 47

Periodic Maintenance Schedule ............................... 48

Inspection and Maintenance of EPA Emission-

Related Parts ................................................ 51

Periodic Maintenance Procedures ............................ 52

After Initial 50 Hours of Operation ...................... 52

Every 50 Hours of Operation ............................. 56

Every 100 Hours of Operation ........................... 58

Every 150 Hours of Operation ........................... 59

Every 250 Hours of Operation ........................... 59

Every 1000 Hours of Operation ......................... 62

Troubleshooting ....................................................... 65

Troubleshooting After Starting ................................. 65

Troubleshooting Information ............................. 66

Troubleshooting Chart ........................................... 67

Long-Term Storage ................................................... 71

Prepare Engine for Long-Term Storage ...................... 71

Draining the Cooling System ................................... 72

Specifications .......................................................... 75

Principal Engine Specifications ................................ 75

2YM15 Engine Specifications ........................... 75

3YM20 Engine Specifications ........................... 77

3YM30 Engine Specifications ........................... 79

Marine Gear and Sail Drive Specifications ........... 81

System Diagrams ..................................................... 83

Piping Diagrams ................................................... 83

Wiring Diagrams ................................................... 88

Emission System Warranty ........................................ 91

Non-Road Emission System Warranty ....................... 91

TABLE OF CONTENTS

YM Series Operation Manual v

Yanmar Co., Ltd. Limited Emission Control

System Warranty - USA Only ............................ 91

Maintenance Log ........................................... 94

TABLE OF CONTENTS

vi YM Series Operation Manual

INTRODUCTION

Welcome to the world of Yanmar Marine!

Yanmar Marine offers engines, drive

systems and accessories for all types of

boats, from runabouts to sailboats, and from

cruisers to mega yachts. In marine leisure

boating, the worldwide reputation of Yanmar

Marine is second to none. We design our

engines to respect nature. This means

quieter engines, with minimal vibrations,

cleaner than ever. All of our engines meet

applicable regulations, including emissions,

at the time of manufacture.

To help you enjoy your Yanmar YM series

engine for many years to come, please

follow these recommendations:

• Read and understand this Operation

Manual before you operate the engine to

ensure that you follow safe operating

practices and maintenance procedures.

• Keep this Operation Manual in a

convenient place for easy access.

• If this Operation Manual is lost or

damaged, order a new one from your

authorized Yanmar Marine dealer or

distributor.

• Make sure this manual is transferred to

subsequent owners. This manual should

be considered a permanent part of the

engine and remain with it.

• Constant efforts are made to improve the

quality and performance of Yanmar

products, so some details included in this

Operation Manual may differ slightly from

your engine. If you have any questions

about these differences, please contact

your authorized Yanmar Marine dealer or

distributor.

• The specifications and components

(instrument panel, fuel tank, etc.)

described in this manual may differ from

ones installed on your vessel. Please refer

to the manual provided by the

manufacturer of these components.

• Refer to the Yanmar Limited Warranty

Handbook for a complete warranty

description.

YM Series Operation Manual 1

RECORD OF OWNERSHIP

Take a few moments to record the information you need when you contact Yanmar for

service, parts or literature.

Engine Model:

Engine Serial No.:

Date Purchased:

Dealer:

Dealer Phone:

INTRODUCTION

2YM Series Operation Manual

SAFETY

Yanmar considers safety of great

importance and recommends that anyone

who comes in close contact with its

products, such as those who install,

operate, maintain or service Yanmar

products, exercise care, common sense

and comply with the safety information in

this manual and on the engine’s safety

decals. Keep the decals from becoming

dirty or torn and replace them if they are lost

or damaged. Also, if you need to replace a

part that has a decal attached to it, make

sure you order the new part and decal at the

same time.

This safety alert symbol appears

with most safety statements. It

means attention, become alert,

your safety is involved! Please

read and abide by the message

that follows the safety alert

symbol.

DANGER

Indicates a hazardous situation which, if

not avoided, will result in death or

serious injury.

WARNING

Indicates a hazardous situation which, if

not avoided, could result in death or

serious injury.

CAUTION

Indicates a hazardous situation which, if

not avoided, could result in minor or

moderate injury.

NOTICE

Indicates a situation which can cause

damage to the engine, personal property

and / or the environment or cause the

equipment to operate improperly.

YM Series Operation Manual 3

SAFETY PRECAUTIONS

General Information

There is no substitute for common sense

and careful practices. Improper practices or

carelessness can cause burns, cuts,

mutilation, asphyxiation, other bodily injury

or death. This information contains general

safety precautions and guidelines that must

be followed to reduce risk to personal safety.

Special safety precautions are listed in

specific procedures. Read and understand

all of the safety precautions before operation

or performing repairs or maintenance.

Before You Operate

DANGER

The safety messages that follow have

WARNING level hazards.

NEVER permit anyone to

install or operate the

engine without proper

training.

• Read and understand this Operation

Manual before you operate or service the

engine to ensure that you follow safe

operating practices and maintenance

procedures.

• Safety signs and decals are additional

reminders for safe operating and

maintenance techniques.

• See your authorized Yanmar Marine

dealer or distributor for additional training.

During Operation and

Maintenance

DANGER

The safety message that follows has

DANGER level hazards.

Crush Hazard

NEVER stand under a hoisted

engine. If the hoist mechanism

fails, the engine will fall on you.

Fire Hazard

Ensure that appropriate fire

detection and extinguishing

equipment are installed and

checked periodically for

proper operation.

SAFETY

4YM Series Operation Manual

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