The Timberjack FB20 Drive to Tree Felling Head, identified by serial number WCFB20X005001, is engineered for efficient forestry operations. This felling head features a 20-inch sawtooth chain cutting system, capable of felling trees with a maximum diameter of 20 inches and a recommended diameter of 18 inches. Its robust design, weighing approximately 1100 lbs, is complemented by integrated grab arms for secure tree handling and a hydraulic actuated delimber for directional control. Designed for demanding environments, it requires a hydraulic flow of 20-35 GPM and a pressure of 2500-3000 PSI, attaching via a standard saw unit mount.

This Workshop Manual, presented in English and spanning 106 pages, serves as a comprehensive guide for the maintenance and repair of the Timberjack FB20 Drive to Tree Felling Head. It details essential procedures, including chain tensioning, lubrication with high-quality bar and chain oil, and hydraulic filter replacement. The manual also provides critical information on sawtooth sharpening angles and references specific sections for advanced maintenance tasks. Its purpose is to equip owners, mechanics, and technicians with the knowledge necessary to ensure the optimal performance, reliability, and longevity of this forestry equipment.