Electric Clutch used with Serpentine Belt for Clutch Pump Applications. Compatible with Force America Products.(Basic pump kits include: pump, idler pulley, clutch, serpentine belt, crankshaft pulley, pump mtg. Bracket’s as needed.NOTE TO INSTALLER Clutches will need a short burnishing period to generate the rated torque. This is a process of cycling the clutch to slightly wear the friction surfaces. This allows full contact and maximum magnetic attraction required for rated torque (or more).BURNISHING-TO AVOID BURNING OR HEAT DISTORTION, THE FOLLOWING PROCEDURE IS RECOMMENDED: After clutch is installed, run at 1000-1200 RPM. Cycle the clutch on/off at the rate of 1 second on – 1 second off for a minimum of 30-40 cycles. 90 Ft./Lbs. 5 1/2″ Ogura MA-N05