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Parker Gear Pump - Gear Pump Oil Change: 3 Ways


Parker Gear Pump shows that there are three common oil pumping methods for gear pump: fixed cycle oil
change method, on-site identification oil change, and 绢 comprehensive analysis oil change

  1 fixed cycle oil change method This method is based on different equipment, different working conditions and different oil products, the hydraulic oil use time is specified for half a year, one year, or after 1000 ~ 2000h work to replace the hydraulic oil. Although this method is widely used in practical work, it is not scientific, and it is impossible to find abnormal pollution of hydraulic oil in time, nor can it protect the hydraulic system well, let alone use hydraulic oil resources reasonably.

  2 On-site identification of oil change This method is to put the identified hydraulic oil into a transparent glass and glass container and compare it with new oil for visual inspection. Determine the degree of pollution by intuition, or use the pH test paper for nitric acid etching test on site. In order to determine whether the identified hydraulic oil needs to be replaced, the details can be found on the site to identify the hydraulic oil pollution project table and the hydraulic oil appearance judgment and external measures.

  3绢 Comprehensive analysis of oil change This method is a regular sampling test of the gear pump to determine the necessary physical and chemical properties, in order to continuously monitor the deterioration of the hydraulic oil, and determine when to change the oil according to the actual situation. This method has a scientific basis and is therefore accurate and reliable, in line with the principle of oil change. However, certain equipment and laboratory instruments are often required. The operation technology is complicated, the test results have a certain lag, and it must be tested by the oil company. This method has been widely adopted internationally.

  In actual work, if only one indicator of hydraulic oil exceeds the value specified in Table 4-12, you can continue to use it while observing the signs. If there are three indicators that have exceeded the specified value, the hydraulic oil should be replaced immediately.
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