This manual covers the Nissan Forklift Internal Combustion 1F1 and 1F2 Series. These forklifts are engineered for industrial applications, offering robust performance and reliability. The series includes comprehensive service information for the base forklift models, as well as detailed coverage for the K15, K21, and K25 gasoline/LPG engines, and the QD32 diesel engine. This manual is designed to provide in-depth technical data for these powerful and dependable machines. The purpose of this service manual is to equip owners, mechanics, and technicians with the necessary information for the maintenance, repair, and troubleshooting of the Nissan Forklift Internal Combustion 1F1 and 1F2 Series. It includes detailed procedures for various systems such as the engine, transmission, brakes, steering, and hydraulic systems, along with electrical and body components. With clear instructions and diagrams, this manual facilitates efficient and accurate service, ensuring optimal performance and longevity of the forklift.