I regularly operate a PTR self contained compactor. I was provided reasonably thorough verbal instructions and visual operation demonstration by a representative of the owner of the compactor. But I was not provided a manufacturer operation guide or instruction video and there is no instruction/safety list posted on the compactor or by the controls. I am wondering about operating cycles and when it is OK to press the start button. The compactor motor has a distinct "spin down" sound as it reaches the end of it's cycle. Is it OK to press the start button during this "spin down" to immediately start the next cycle? Or is doing so potentially harmful to the motor or mechanical system of the compactor? Should the motor be fully stopped (no audible sound) before pressing the start button for the next cycle? It takes several (approx. 5-7) cycles to clear the trash loading area when full. I can check the compactor for a model number if that is helpful.