This comprehensive Yanmar TNM Series 3TNM68, 3TNM72 Industrial Engine Service Repair Workshop Manual provides detailed instructions and illustrations to guide you through every step of servicing and repairing your engine. It covers a wide range of topics, including:

* **Introduction:** An overview of the Yanmar TNM series engines.
* **Yanmar Warranties:** Information about Yanmar's warranty policies.
* **Safety:** Crucial safety guidelines to ensure your well-being during maintenance and repair procedures.
* **General Service Information:** Essential information regarding engine specifications, fluids, and maintenance schedules.
* **Periodic Maintenance:** Detailed instructions for routine maintenance tasks such as oil changes, filter replacements, and inspections.
* **Engine:** In-depth explanations of engine components and procedures for disassembly, repair, and reassembly.
* **Fuel System:** Guidance on servicing and troubleshooting the engine's fuel system, including injectors, fuel lines, and filters.
* **Cooling System:** Comprehensive coverage of the cooling system, including radiator, thermostat, and coolant maintenance.
* **Lubrication System:** Information on the lubrication system, oil pump, and oil filter.
* **Starter Motor:** Detailed procedures for inspecting, testing, and repairing the starter motor.
* **Alternator:** Instructions for maintenance, troubleshooting, and replacement of the alternator.
* **Electric Wiring:** Diagrams and explanations of the electrical system, including wiring, fuses, and components.
* **Troubleshooting:** A comprehensive troubleshooting section with diagnostic charts and steps to resolve common problems.

This manual is an invaluable resource for both experienced mechanics and DIY enthusiasts, providing the knowledge and instructions needed to keep your Yanmar TNM Series 3TNM68 or 3TNM72 engine running smoothly.

The Yanmar TNM Series 3TNM68 and 3TNM72 industrial engines are robust and reliable powerhouses designed for a wide array of demanding applications. These four-cylinder, turbocharged, water-cooled diesel engines boast exceptional fuel efficiency and low emissions, making them ideal for powering agricultural machinery, construction equipment, generators, and industrial machinery. The 3TNM68 displaces 3.2 liters and delivers a peak power output of 68 horsepower, while the 3TNM72 features a 3.6-liter displacement and generates a maximum power of 72 horsepower. Both engines are renowned for their durability and long service life, thanks to their robust design, high-quality materials, and advanced manufacturing processes.

Beyond their raw power, the TNM Series engines offer a host of features that enhance their performance and user experience. These include an advanced electronic control system for precise fuel management and emissions control, a durable cast-iron cylinder block for exceptional strength and longevity, and a robust crankshaft and connecting rods capable of handling heavy loads. The engines are also known for their smooth operation and low noise levels, contributing to a more comfortable and efficient work environment. The Yanmar TNM Series 3TNM68 and 3TNM72 engines are backed by a comprehensive network of service and support, ensuring that owners have access to the resources they need to keep their engines running smoothly and efficiently.