This document provides comprehensive technical information for tractors, specifically covering models DK50S, DK55, DK501, and DK551. These tractors are recognized for their robust construction and versatility, suitable for a wide range of agricultural, landscaping, and utility tasks. Engineered by a reputable South Korean manufacturer, tractors are known for their reliability and performance, featuring turbocharged diesel engines, known for delivering strong pulling power.

This factory workshop repair service manual is designed to assist servicing personnel, mechanics, agricultural technicians, and owner-operators in maintaining and repairing these tractor models. It offers detailed coverage of all major systems, including the engine, clutch, transmission, axles, brakes, steering, hydraulics, cabin, and electrical system. The manual includes essential maintenance procedures, systematic troubleshooting guides, step-by-step repair instructions, and critical technical specifications, ensuring that the tractors can be serviced and repaired accurately for optimal performance and longevity.