The restraining arm on a Pacific filler serves two purposes: (1) it keeps the the stator plate from turning, and (2) it allows adjustment of the start of fill/end of fill.
The “restraining” function holds the stator plate in the proper position. This is important to ensure the rotating plate receives the proper amount of product.
The “adjustment” function provides flexibility to improve fill appearance. The restraining arm can be “advanced” or “retracted” to set the desired start of fill and end of fill location. This adjustment eliminates aeration and stringing.
There are two rules to always follow with the restraining arm: