This service workshop manual covers the Kohler TRIAD OHC series engines, specifically the TH520, TH575, and TH650 models. These gasoline-powered, air-cooled internal combustion engines are designed for demanding industrial, commercial, and agricultural equipment applications. Featuring an overhead camshaft (OHC) valve train and a horizontal crankshaft configuration, these V-twin engines deliver between 16 to 18 horsepower, providing robust performance and reliability for a variety of heavy-duty tasks. Their engineering prioritizes durability and consistent operation in challenging environments.

The purpose of this manual is to provide comprehensive guidance for the maintenance, repair, and technical understanding of the Kohler TRIAD OHC engines. It details essential procedures, including recommended service intervals, oil specifications, and air filter maintenance, alongside technical specifications and troubleshooting information. This resource is intended for owners, mechanics, and technicians to ensure optimal performance, longevity, and safe operation of their equipment powered by these engines. All information is presented in English for clarity and ease of use.

This service workshop manual covers the Kohler TRIAD OHC series engines, specifically the TH520, TH575, and TH650 models. These gasoline-powered, air-cooled internal combustion engines are designed for demanding industrial, commercial, and agricultural equipment applications. Featuring an overhead camshaft (OHC) valve train and a horizontal crankshaft configuration, these V-twin engines deliver between 16 to 18 horsepower, providing robust performance and reliability for a variety of heavy-duty tasks. Their engineering prioritizes durability and consistent operation in challenging environments.

The purpose of this manual is to provide comprehensive guidance for the maintenance, repair, and technical understanding of the Kohler TRIAD OHC engines. It details essential procedures, including recommended service intervals, oil specifications, and air filter maintenance, alongside technical specifications and troubleshooting information. This resource is intended for owners, mechanics, and technicians to ensure optimal performance, longevity, and safe operation of their equipment powered by these engines. All information is presented in English for clarity and ease of use.