This Operation Manual describes the operation, maintenance, inspection and handling precautions of the Yanmar 2YM15, 3YM20, 3YM30 Marine Diesel Engine. Models Covered: ========= Yanmar Marine Diesel Engine 2YM15 Yanmar Marine Diesel Engine 3YM20 Yanmar Marine Diesel Engine 3YM30 Table of Contents: ========= INTRODUCTION 1. FOR YOUR SAFETY 1.1 Warning Symbols 1.2 Safety Precautions 1.3 Warning Labels 2. PRODUCT EXPLANATION 2.1 Use, Propulsion System, Etc. 2.2 Engine Specifications 2.3 Names of Parts 2.4 Major Service of Parts 2.5 Control Equipment 2.5.1 Instrument Panel 2.5.2 Controls and equipment 2.5.3 Meters 2.5.4 Alarm equipment (lamps and buzzer) 2.5.5 Normal action of alarm devices 2.5.6 Single Lever Remote Control Handle 2.5.7 Shut-down Equipment 3. OPERATION 3.1 Fuel Oil, Lubricating Oil, and Cooling Water 3.1.1 Fuel Oil 3.1.2 Lubricating Oil 3.1.3 Cooling fresh water 3.1.4 Handling of Coolant 3.2 Before Initial Operation 3.2.1 Supply Fuel Oil 3.2.2 Supply Engine Lubricating Oil 3.2.3 Supply Marine Gear Lubricating Oil 3.2.4 Supply Cooling Water 3.2.5 Cranking 3.2.6 Check and Re-supply Lubricating Oil and Cooling Water 3.3 Operating your engine 3.3.1 Daily Start Up Inspection 3.3.2 How to Start the Engine 3.3.3 Operation 3.3.4 Cautions During Operation 3.3.5 Engine shut-down 3.4 Long Term Storage 4. MAINTENANCE AND INSPECTION 4.1 General Inspection Rules 4.2 List of Periodic Inspection Items 4.3 Periodic Inspection Items 4.3.1 Inspection on Initial 50 Hrs. of Operation (or after 1 Month) 4.3.2 Inspection Every 50 Hrs. (or Monthly) 4.3.3 Inspection Every 100 Hrs (or six months). 4.3.4 Inspection Every 150 Hrs (or one year). 4.3.5 Inspection Every 250 Hrs (or one year). 4.3.6 Inspection Every 1000 Hrs (or 4 years). 4.3.7 Annually 4.4 EPA Requirements 4.4.1 EPA Certification Plate 4.4.2 Conditions to Insure Compliance with Emission Standards 4.4.3 Inspection and Maintenance 5. TROUBLE AND TROUBLESHOOTING 6. PIPING DIAGRAMS 7. WIRING DIAGRAMS =========== ** Model Specification: YANMAR 2YM15, 3YM20, 3YM30 MARINE DIESEL ENGINE ** Language: English ** File Format: PDF ** Requirements: Adobe PDF Reader ** ZOOM IN/OUT: YES ** INSTANT DELIVERY: YES ** Specifications: FULLY PRINTABLE & BOOKMARKED ** Compatible: All Versions of Windows & Mac, APP ISO, Iphone, Ipod, Android etc =========== This QUALITY manual is 100 percents COMPLETE and INTACT, no MISSING/CORRUPT pages/sections to freak you out! This PDF file is Bookmarked and SEARCHABLE to make what you need easy to find. This manual can be viewed on any computer, as well as zoomed and printed. Complete download comes in PDF format which can work under all PC based Windows operating system and Mac also. It saves to your hard-drive and can be burned to CD-ROM. INSTANT DOWNLOAD MEANS THERE WILL BE NO SHIPPING COSTS OR WAITING FOR A PAPER OR CD MANUAL TO ARRIVE IN THE MAIL. YOU WILL RECEIVE THIS MANUAL TODAY VIA INSTANT DOWNLOAD ON COMPLETION OF PAYMENT VIA OUR SECURE PAYMENT PROCESSOR. WE ACCEPT ALL MAJOR CREDIT/DEBIT CARDS AND PAYPAL. YOU CAN DO THE REPAIRS YOURSELF AND SAVE MONEY $$$$$$$ BUY FROM US AND I GUARANTEE YOU'LL BE A SATISFIED CUSTOMER AND CONTACT US IF YOU HAVE ANY QUESTIONS. Looking for some other Service Repair Manual, please check: