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Bedding-in (all Clutch/Brake Devices) The torque of clutches and brakes of the type wa manufacture is affeCted by the awraga coefficiant of friction across the tacas of th armalura and tha clutch\brake, and the clamplng pressure at the intartace of these parts. This effective pressura in increased if the surfaces are in good intimare contact when engaged. The dagree oiintimale contact is controUed to a minimum Jevel durmg production by grinciing the opposing tacas in contact. This increases during normal operatjon where some slip occurs naturaHy, the amount of slip depends upon the magnitude of the load, speed, and cycle rate thus increasing the torque. We consider bedding.in to be Bssential and in most cases inevitable. If maximum torque is required immediatehr after instaUadon then Lhis process can be accelerated by lowering the oparating voltage r0 40/SOX o[ tha nominal value. This Induces arlificial slip during oparalion and results in an contact. in an increase in the degree of Care must be taken not to slip the da,nce excessively as this willlead to an undasirable tharmalovarload causing elactrical failure. Thermaj ovarload may be avoided by cycling the unit 'on and off. allowing enough time for cooling belwaen the periods of shp.
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