Part of the Yanmar Operator Manuals.
Run a 4JH3 out of fuel once, or swap the filter element without bleeding the lines afterward, and you can crank until the battery gives up. The bleeding procedure that ends that afternoon is in this book, along with everything else Yanmar expects the person running the engine to know. It is the factory operator manual, publication 49961-202851, covering the 4JH3-TE, 4JH3-TCE, 4JH3-HTE and 4JH3-DTE marine diesels and the KMH4A marine gear, delivered as a 65-page English PDF.
Inside are separate specification tables for each variant, fuel, lube oil and cooling water requirements, starting and cold-starting procedure, the periodic inspection schedule with filter tightening torques, the blower wash routine for the RHB52 turbocharger, a troubleshooting chart, and wiring diagrams for every instrument panel type.
Bought once, it is yours to keep for this engine: print the pages you need and leave the rest on the laptop.
Complete the set for your 4JH3 Series
What's Inside This Operator Manual
| System | Pages | Key Topics |
|---|---|---|
| Introduction | 2 | For Safe Operation, Explanation of Product, Preparation for Operation, Operation, Maintenance & Inspection |
| For Safe Operation | 5-8 | Warning Symbols, Safety Precautions, Location of Product Safety Labels |
| Product Explanation | 9-21 | Use & Driving System, Engine Specifications (4JH3-Te, 4JH3-Tce, 4JH3-Hte, 4JH3-Dte), Names of Parts, Major Servicing Parts |
| Before Operation | 22-27 | Fuel Oil, Lube Oil and Cooling Water, Supplying Fuel (Filling the Fuel Tank, Bleeding the Fuel System), Supplying Engine Lube Oil, Supplying Marine Gear Lube Oil |
| How to Operate | 28-38 | Inspection Before Starting, Checking the Illumination Lamps of the Panel Meters (Alarm Devices) |
| Maintenance & Inspection | 39-50 | List of Periodic Inspections |
| Trouble and Troubleshooting | 51-54 | Simple Problems and the Appropriate Countermeasures, Emergency Repairs for Marine Gear Trouble, Consulting Your Yanmar Dealer or Distributor |
| Memo | 55 | |
| System Diagram | 56-63 | Wiring Diagram (B Type Instrument Panel, C Type / C Type × B Type Instrument Panel, New B Type Instrument Panel, New C Type / New C Type × New B Type, Instrument Panel) |
| Colophon | 64 | Operation Manual, Models |
| Back-Address | 65 | Overseas Operations Division, Yanmar Diesel America Corp., Yanmar Europe B.V., Yanmar Asia (Singapore) Corporation Pte Ltd., User's Record |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| All Models | ||
| Fuel filter element replacement interval | Every 250 Hrs. or 1 yr. | p. 40 |
| Fuel filter tightening torque | 11.8~15.6N•m(1.2~1.6kgf•m) | p. 45 |
| Turbocharger model | RHB52(IHI) Water cooled and forced lubrication system | p. 10 |
| Turbocharger blower wash interval | Every 250hrs (1 yr.) | p. 40 |
| Recommended battery capacity | 12V-120A or greater | p. 10 |
| all 4JH3-X models | ||
| Engine Displacement | 1.995 L | p. 10 |
| Engine High Idling Speed | 4300±25 rpm | p. 10 |
| Engine Low Idling Speed | 700±25 rpm | p. 10 |
| Alternator Output | DC12V-55A | p. 10 |
| Recommended Battery Capacity | 12V-120A or greater | p. 10 |
| all 4JH3-X models with 0° raked angle | ||
| Engine Lube Oil Capacity (All, 0° raked angle) | 7.5 L | p. 11 |
| KMH4A | ||
| Marine Gear Lube Oil Capacity (KMH4A) | 2.0 L | p. 10 |















