Restore the smooth, precise action of your lever group with the genuine Stud Roller Bushing Lever Group (Part # F.3.086). If you are experiencing grinding resistance or asking, "Why is my espresso machine lever stiff?", a worn stud roller or bushing is often the culprit. This critical OEM component ensures the seamless mechanical connection and pivot necessary for perfect water flow regulation in your lever group, providing the low-friction support required to translate your lever pull into the piston movement without binding or excessive wear. The F.3.086 Stud Roller Bushing is engineered for exceptional durability and high-temperature resistance, guaranteeing longevity even under high-volume commercial use. Its features include precision-machined metal for an exact fit and a smooth-rolling surface designed to minimize friction. Replacing this part directly addresses operational problems like "difficulty pulling espresso machine lever" and inconsistent pre-infusion due to mechanical hesitation, which is vital for achieving the consistent pressure profiles your lever machine is known for. Don't let a failing bushing compromise your espresso quality. If you are searching for "how to fix a noisy espresso machine lever" or need genuine replacement parts to maintain factory performance, the Stud Roller Bushing Lever Group (F.3.086) is the solution. Trust only genuine OEM components from Kaldi.com to ensure compatibility and maintain the hydraulic integrity of your commercial lever espresso machine, keeping your equipment operating flawlessly and helping you avoid expensive repairs down the line.