Yanmar 3JH4E 4JH4AE 4JH4-TE 4JH4-HTE JH4 SERIES MARINE ENGINES OPERATION MANUAL 0AJH4–G00102 – PDF DOWNLOAD
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Yanmar 3JH4E 4JH4AE 4JH4-TE 4JH4-HTE JH4 SERIES MARINE ENGINES OPERATION MANUAL 0AJH4–G00102 – PDF DOWNLOAD
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Yanmar 3JH4E 4JH4AE 4JH4-TE 4JH4-HTE JH4 SERIES MARINE ENGINES OPERATION MANUAL 0AJH4–G00102 – PDF DOWNLOAD
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Yanmar 3JH4E 4JH4AE 4JH4-TE 4JH4-HTE JH4 SERIES MARINE ENGINES OPERATION MANUAL 0AJH4–G00102 – PDF DOWNLOAD
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.
TABLE OF CONTENTS:
Yanmar 3JH4E 4JH4AE 4JH4-TE 4JH4-HTE JH4 SERIES MARINE ENGINES OPERATION MANUAL 0AJH4–G00102 – PDF DOWNLOAD
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 13
Yanmar JH4 Features and Applications 13
New Engine Break-In 13
Component Identification 15
Service Side – 3JH4E 15
Non-Service Side – 3JH4E 15
Service Side – 4JH4AE 16
Non-Service Side – 4JH4AE 16
Service Side – 4JH4-TE 17
Non-Service Side – 4JH4-TE 17
Service Side – 4JH4-HTE 18
Non-Service Side – 4JH4-HTE 18
Location of Nameplates 19
Function of Major Components 20
Control Equipment 21
Instrument Panel (Optional) 21
Single Lever Remote Control Handle 26
Before You Operate 27
Diesel Fuel 27
Diesel Fuel Specifications 27
JH4 Series Operation Manual iii
Filling the Fuel Tank 30
Bleeding the Fuel System 30
Engine Oil 32
Engine Oil Specifications 32
Engine Oil Viscosity 33
Checking the Engine Oil 33
Adding Engine Oil 33
Marine Gear or Sail Drive Oil 34
Marine Gear Oil Specifications 34
Sail Drive Oil Specifications – SD50 34
Checking Marine Gear Oil 35
Adding Marine Gear Oil 35
Checking and Adding Sail Drive Oil 35
Engine Coolant 36
Engine Coolant Specifications 36
Coolant (Closed Cooling System) 36
Checking and Adding Coolant 36
Cranking the Engine 39
Daily Checks 40
Visual Checks 40
Checking Diesel Fuel, Engine Oil and Engine
Coolant Levels 41
Checking and Refilling Marine Gear Oil 41
Checking the Battery Electrolyte Level 41
Checking the Alternator Belt 41
Checking the Remote Control Handle 41
Checking the Alarm Indicators 41
Preparing Fuel, Oil and Coolant in Reserve 41
Engine Operation 43
Starting the Engine 44
Restarting After Starting Failure 45
Starting at Low Temperatures 45
After the Engine Has Started 46
Remote Control Handle Operation 46
Acceleration and Deceleration 46
Shifting the Engine 46
Switching to Trolling (KMH4A only) 47
Shutting Down the Engine 48
Emergency Shutdown 48
Checking the Engine After Operation 49
Periodic Maintenance 51
Safety Precautions 51
TABLE OF CONTENTS
iv JH4 Series Operation Manual
Precautions 53
The Importance of Periodic Maintenance 53
Performing Periodic Maintenance 53
The Importance of Daily Checks 53
Keep a Log of Engine Hours and Daily Checks 53
Yanmar Replacement Parts 53
Tools Required 53
Ask Your Authorized Yanmar Marine Dealer or
Distributor For Help 53
Tightening Fasteners 54
EPA Maintenance Requirements 55
EPA Requirements for USA and Other Applicable
Countries 55
EPA Requirements 55
Conditions to Ensure Compliance with EPA
Emission Standards 55
Inspection and Maintenance 56
Periodic Maintenance Schedule 57
Inspection and Maintenance of EPA Emission-
Related Parts 60
Periodic Maintenance Procedures 61
After Initial 50 Hours of Operation 61
Every 50 Hours of Operation 65
Every 250 Hours of Operation 67
Every 500 Hours of Operation 73
Every 1000 Hours of Operation 74
Troubleshooting 77
Troubleshooting After Starting 77
Troubleshooting Chart 79
Troubleshooting Information 82
Long-Term Storage 83
Prepare Engine for Long-Term Storage 83
Drain Seawater Cooling System 84
Specifications 87
Principal Engine Specifications 87
3JH4E Engine Specifications 87
3JH4E Marine Gear Specifications 89
4JH4AE Engine Specifications 90
4JH4AE Marine Gear or Sail Drive
Specifications 94
4JH4-TE Engine Specifications 96
4JH4-HTE Engine Specifications 98
TABLE OF CONTENTS
JH4 Series Operation Manual v
4JH4-TE and 4JH4-HTE Marine Gear or Sail Drive
Specifications 100
System Diagrams 101
Piping Diagrams 101
Wiring Diagrams 116
EPA Warranty USA Only 129
Yanmar Co , Ltd Limited Emission Control System
Warranty – USA Only 129
Your Warranty Rights and Obligations: 130
Warranty Period: 130
Warranty Coverage: 131
Exclusions: 131
Owner’s Responsibility: 131
Customer Assistance: 132
Emission System Warranty 133
Non-Road Emission System Warranty 133
Yanmar Co , Ltd Limited Emission Control
System Warranty – USA Only 133
TABLE OF CONTENTS
vi
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