This comprehensive workshop service and repair manual provides in-depth information for technicians and DIY enthusiasts working on Ruggerini MD2 series air-cooled, indirect injection diesel engines, specifically models MD150, MD151, MD190, and MD191. The manual is designed to guide users through various repair and maintenance procedures with detailed illustrations and step-by-step instructions. The manual covers a wide range of topics, including general information, troubleshooting, safety instructions, model identification, technical specifications, overall dimensions, special tools required, and complete maintenance procedures. It also offers detailed instructions for disassembling and reassembling the engine, including components like the crankcase, fuel injectors, oil pressure indicator plug, crankshaft gear, flywheel side main bearing, camshaft gear, flywheel, camshaft, central main bearings, connecting rods, crankshaft, cylinders, cylinder heads, fuel pump push-rod, governor lever and spring, injection pump plug nuts and control rods, oil pump, oil seal rings, piston rings, pistons, piston pins, rocker arms, tappets and push rods, valves, guides, seats, valves and springs, injection pumps, injectors, fuel circuit, and electrical equipment. The manual provides detailed instructions for checking and setting injectors, checking injection pumps, disassembling and reassembling injectors, testing air tightness, checking electrical equipment, checking the alternator, and performing various adjustments like camshaft and central main bearing clearances, checking injector protrusion, connecting rod and crankshaft clearances, cylinder head and cylinder inspections, electric shut-off adjustments, feed pump adjustments, governor tie rod adjustments, injection checks, injection pump settings, injector and injector pipe inspections, main bearing clearances, oil filter checks, oil pump inspections, piston inspections, crankcase preparation, pulley and flywheel checks, timing cover inspections, valve clearance adjustments, oil leak checks, oil pressure checks, dyno testing, speed adjustment, and engine preparation for operation and storage. The manual also includes information on standard screw tightening torques and temporary protection procedures. This comprehensive manual offers the necessary information for successful engine repair and maintenance, ensuring optimal performance and longevity of your Ruggerini MD2 series diesel engine.

The Ruggerini MD2 series, encompassing the MD150, MD151, MD190, and MD191 models, represents a range of compact and robust diesel engines designed for a variety of applications. Known for their reliability and durability, these engines are commonly found in agricultural machinery, construction equipment, generators, and industrial machinery. The MD150 and MD151 models boast a power output of 15 hp, while the MD190 and MD191 deliver 19 hp. This power range, coupled with their compact size, makes them ideal for applications requiring efficient and reliable power in confined spaces. Their sturdy construction, incorporating cast iron cylinder blocks and high-quality components, ensures long-term performance and resistance to harsh operating conditions. The Ruggerini MD2 series is designed for ease of maintenance, with readily accessible components and a simple design that minimizes downtime. Ruggerini MD2 series engines are renowned for their low fuel consumption and low emission levels, contributing to their environmental friendliness. They feature a direct injection system for efficient fuel combustion, resulting in optimal performance and reduced operating costs. The engines are equipped with a robust cooling system to maintain optimal operating temperatures, ensuring longevity and optimal performance. These engines are also known for their low noise levels, making them suitable for applications where noise pollution is a concern. The availability of a comprehensive workshop service and repair manual, referenced as "# 1," provides detailed instructions and technical specifications for maintenance and repair, simplifying the process for mechanics and owners alike. The Ruggerini MD2 series remains a reliable and versatile choice for various industries, providing dependable and efficient power in a compact and easy-to-maintain package.