What is a good temperature for hydraulic oil?
Hydraulic Fluid Temperature While the operation of any hydraulic system at temperatures above 180°F should be avoided, fluid temperature is too high when viscosity falls below the optimum value for the hydraulic system’s components. This can occur well below 180°F, depending on the fluid’s viscosity grade.
How hot can hydraulic oil run?
A typical petroleum based hydraulic fluid has flash point that range from 300 to 600 degrees fahrenheit and an auto ignition temperature of 500 to 750 degrees fahrenheit. However, when hydraulic fluid is accidentally discharged under high pressure an easily ignited fine oil mist is sprayed over the surrounding area.
What will destroy a hydraulic system?
Over time, the fluid used in your hydraulic system can get contaminated with particles and other harmful materials. Dirty fluid can wear down the components of your hydraulic system, damaging pumps, valves and other important parts that must work together for system functionality.
What is the hydraulic problem?
Telltale signs of hydraulic problems include noise, elevated temperatures and slow/erratic operation. Heat, air contamination and water contamination are the most common causes of poor hydraulic performance. The hydraulic pump is the heart of the system – and the most expensive component to replace.
How do you remove moisture from a hydraulic system?
Vacuum distillation employs a combination of heat and vacuum to remove water from hydraulic fluid. At 25 inches Hg, water boils at 133°F (56°C). This enables water to be removed at a temperature that does not damage the oil or its additives.
How does water get into hydraulic system?
A major point of water ingression is through the reservoir head space. Many hydraulic system reservoirs are fitted with breather caps that allow moisture (and particles) to enter the reservoir as the oil volume changes through either thermal expansion and contraction, or the actuation of cylinders.
Why is my hydraulic fluid milky white?
Oil turning milky white generally means that water is entering the reservoir. When the unit is shut down, air in the reservoir cools down, which causes water to condense into liquid form. This water should be drained out the drain plug.