17. The supercharger assembly was then attached to the PTO bracket saddle on the back of the primary cover and then the serpentine style belt was adjusted to the proper tension. The serpentine belt tension was set via a tensioning pulley and jack screw attached to the supercharger bracket. As the screw was turned the pulley increased pressure on the belt and needed to be tightened until the belt was unable to be twisted past 90 degrees in order to achieve maximum belt grip on the pulleys. If the belt slips too much, the proper amount of boost may not be achieved.