2 products RINGFEDER Automatic Coupling Oiler Proper lubrication eases movements and makes the coupling less prone to wear and corrosion. This increases reliability and reduces the need for repairs. RINGFEDER JK retrofit kit for RF50 When reversing, an acoustic signal alerts the driver via a buzzer if the drawbar angle is at the risk of jackknifing, preventing equipment damage, downtime and costly repairs. The buzzer is connected ...