The standard P.T.O. speed, 540 rpm, is increased by the gearbox to the optimal speed conditions for the pump. Different input speeds are accepted but the output speed should not exceed 3000 rpm. Minimum and maximum temperatures should not exceed -20C and +80C. Torque data listed is for continuous duty and can be increased by 25% intermittently. The oil level must be maintained to the proper level and should be changed after the first 35/50 hours use and thereafter at least every 12 months.