Dairymaster ACR smart start ram plunger The Dairymaster ACR Smart Start ram plunger is a key mechanical component within the Automatic Cluster Removal (ACR) system’s Smart Start mechanism. This plunger is designed to precisely control the movement of the ram, which in turn regulates vacuum pressure to initiate the milking cluster attachment or removal process. By ensuring accurate and smooth movement, the ram plunger plays a critical role in the timing and reliability of cluster attachment at the start of milking. It helps prevent premature cluster release or delayed start, improving milking efficiency and animal comfort. Made from durable materials, the ram plunger is built to withstand repeated cycles of motion and vacuum pressure changes. Regular inspection and replacement of the plunger as needed help maintain optimal performance of the ACR Smart Start system. Including spring assembly