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A Service Manual (sometimes referred to as a Repair, Technical, Workshop or Shop Manual) is often
large and broken down in to sections for different parts of your equipment. Service
manuals cover absolutely every aspect of your machine unless mentioned otherwise. Sometimes, the
engine is covered in a separate service manual that is written specifically for the
engine. Most of the time though, it’s included in the main service manual. A service manual will
arm you with the same exact information that your local service center has and includes
electrical and hydraulic diagrams and which are usually color and or large foldout pages.
Most OEM service manuals will also include troubleshooting flow charts, error codes and
exploded views of components which are a great help for disassembly and re-assembly.

An Operator’s Manual typically describes basic equipment operation and maintenance. This
is the manual distributed with your equipment at the time of purchase from the dealer.

• Table of Contents
• Standard Specifications and Maintenance
• Hydraulic, Electrical, and Component Systems
• General Disassembly and Assembly
• Troubleshooting
• Engine
• Yanmar Service Manual Industrial Diesel Engine Model 3TNV and 4TNV Series
• Safety Precautions
• Table of Contents
• General
• Inspection and Adjustment
• Troubleshooting
• Disassembly, Inspection and Reassembly of Engines
• Lubrication System
• Cooling System
• Fuel Injection Pump/ Governor
• Turbochager
• Starting Motor
• Alternator
• Electric Wiring
• Service Standards
• Tightening Torque for Bolts and Nuts
• Schematic’s