**Komatsu 140-3 Series Diesel Engine**

**Overview**

The Komatsu 140-3 Series Diesel Engine is a powerful and versatile engine designed for a wide range of applications. It is known for its durability, reliability, and fuel efficiency. The engine features a compact design with a high power-to-weight ratio, making it ideal for use in various types of construction equipment.

**Engine Design and Construction**

The 140-3 Series Diesel Engine is a four-stroke, direct-injection engine. It uses a turbocharged and intercooled design to maximize performance and reduce emissions. The engine block is made of ductile iron for strength and longevity, while the cylinder head is made of cast iron for durability and heat resistance.

**Fuel System**

The engine utilizes a high-pressure common rail fuel system that delivers precise fuel injection for enhanced combustion and reduced emissions. The system features a high-pressure fuel pump and electronically controlled injectors that provide precise fuel delivery under varying engine operating conditions.

**Emissions Control**

The 140-3 Series Diesel Engine meets strict emission regulations through advanced technologies, including exhaust gas recirculation (EGR), variable valve timing (VVT), and a diesel particulate filter (DPF). These technologies work together to reduce nitrogen oxide (NOx), particulate matter (PM), and other harmful emissions.

**Performance and Efficiency**

The engine delivers impressive performance with high power output and torque. It is known for its fuel-efficient operation, reducing fuel consumption and operating costs. The engine's advanced turbocharging and intercooling systems enhance air flow and combustion efficiency, leading to optimal power delivery and fuel savings.

**Durability and Reliability**

The Komatsu 140-3 Series Diesel Engine is renowned for its durability and reliability in demanding construction applications. Its robust design, high-quality components, and advanced engineering ensure maximum uptime and reduce maintenance requirements. The engine's long service life and extended maintenance intervals provide significant cost savings and increase productivity.

**Applications**

The Komatsu 140-3 Series Diesel Engine is widely used in a variety of construction equipment, including excavators, dozers, wheel loaders, and other heavy-duty applications. Its compact design and versatility make it suitable for various machine sizes and configurations.

**Conclusion**

The Komatsu 140-3 Series Diesel Engine is a testament to the company's commitment to delivering premium-quality engines for the construction industry. Its powerful performance, fuel efficiency, emissions control, durability, and versatile applications make it an ideal choice for contractors and equipment manufacturers worldwide. The engine's reputation for reliability and cost-effectiveness ensures maximum productivity and reduced operating expenses over its long service life.

The Komatsu 140 3 Series Diesel Engine Service Repair Manual Download is the complete factory service and repair manual for your Komatsu 140 3 Series this service manual covers all the manuals below:

-Komatsu 140 3 Series Diesel Engine Service Repair Manual Download

Completly bookmarked and complete searcheble so you can easily find what you are looking for. This is the same Repair Service manual your local dealer will use when doing a repair. These are real files not scans. Complete Manuals in PDF format

This KOMATSU Series manual contains all the information about:

*GENERAL
*STRUCTURE AND FUNCTION
*TESTING AND ADJUSTING
*DISASSEMBLY AND ASSEMBLY
*MAINTENANCE STANDARD
*REPAIR AND REPLACEMENT OF PARTS


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