FasTension™ Chain Tensioning System

ECHO’s FasTension™ (99988802200) is a tool-less chain tensioning system for the CS-370 and CS-400 chainsaws. FasTension makes chain tensioning adjustments quick and easy without use of a scrench or tightening tool. Designed with a rotating lever that replaces locking nuts and a tensioning wheel that replaces an adjustment screw, FasTension allows for adjustments to be made in four easy steps for the perfect amount of tension in less time over traditional methods.