This document provides an overview and instructions for operating the Husky 60 foam proportioning system. Some key details include: - The Husky 60 uses a balanced pressure principle to automatically regulate foam concentrate pressure equal to water pressure. - It has a maximum operating pressure of 250 psi and can output 60 gallons per minute of foam concentrate. - Instructions are provided for operating the system at 3% and 6% foam concentrations, filling the foam tank, starting and stopping foam operations, and periodic testing of the system. - The manual override mode is described for use if the automatic balancing system fails.