ABSTRACT
Speed loss is an hourly loss that occurs when equipment is run at a lower speed than its standard or rated speed. Some factories think of machine speed and speed loss in terms of parts produced per hour. Most often, we assume that the current machine speed is the standard speed. The equipment may operate at its standard machine cycle time initially, but once trouble occurs, we make only a halfhearted attempt to search for the causes. Since the cycle time remains slow, we get used to it and think it's normal. Machine operators sometimes run into problems on equipment with a hydraulic drive because the amount of oil passing through the flow control valve fluctuates as the oil's viscosity increases or decreases with temperature changes. The result is often a speed loss from increased machine cycle time after the morning startup, especially in the winter.
