The pick-up arm's movement in the bundler is controlled by a directional roller mechanism consisting of a crank, roller, and cam disk at one end of the pick-up arm. On the other end, an overrunning clutch is installed to prevent reverse rotation of the pick-up arm in case of unexpected situations. Additionally, the pick-up arm is equipped with a suspension and lifting device, ensuring a stable ground clearance for the pick-up arm tines.