How to solve the three common faults of Roots oil pump and pay attention to oil discharge issues

[1] How to solve the three common faults of Roots oil pump? Any equipment will have some common faults, even Roots oil pump is no exception. So understanding its common faults and solutions can help you operate the equipment well and also solve problems when the equipment malfunctions. So let's talk about its three common faults and corresponding solutions below

1. The LC Roots pump is very hot, which is due to our selection of a front stage pump with poor pumping speed, resulting in excessive compression ratio, high pressure, poor cooling, smooth gearbox oil, contact between the rotor and pump casing, and poor smoothness of gears, bearings, and oil seals.

Solution: Select the front stage pump from scratch, adjust and control the pressure, ensure smooth cooling, adjust the oil volume, trim, and ensure that the oil volume is appropriate and smooth

2. Unstable operation, excessive noise, low efficiency, and other issues during the operation of the Roots oil pump are actually related to our own maintenance. Unstable operation is caused by factors such as voltage and improper assembly

Solution: Excessive noise is caused by the device being unstable or not smooth enough, so it's worth trying to smooth the machine

3. Sometimes, the pipeline of the Roots oil pump cannot function properly due to conductivity, resulting in a decrease in pumping speed of the front stage pump and air leakage at the relief valve, leading to a lack of pumping speed, etc

Solution: Increase the conductivity of the pipeline, repair or replace the previous stage pump, and tidy up the overflow valve

In fact, many common faults of Roots oil pumps are caused by not carefully checking the equipment before starting, not operating correctly during operation, and not doing a good job in maintenance and repair operations in the later stage. Therefore, to reduce the failure rate of the equipment, it is necessary to strictly follow the correct operating steps to inspect, start, use the equipment, etc., in order to truly reduce the occurrence rate of equipment failures

[2] What should be paid attention to when draining oil from the Roots pump

When the lubricating oil inside the Roots pump deteriorates or contains a large amount of impurities that cannot be used anymore, it is necessary to drain the lubricating oil inside the equipment and then add new lubricating oil.

. Otherwise, the unqualified lubricating oil will continue to remain inside the equipment, which will only cause serious wear and damage to the equipment. But at the same time, when carrying out oil discharge treatment, attention should also be paid to whether one's operating method is correct, etc. Otherwise, the wrong oil discharge method not only will not discharge the oil cleanly, but also will affect the quality of new lubricating oil. So let's focus on some operational precautions when draining oil from the equipment

If you want to drain all the oil in the body, you can unscrew the oil drain plug at the bottom of the box to drain the oil

2. When the Roots pump is discharging oil externally, the liquid level should not exceed 30 millimeters from the top plate of the oil tank for lubrication and cooling of the bearings inside the pump. When the working chamber volume of the jack is too large, an additional oil tank should be installed, and the liquid level after oil discharge should not be less than 100 millimeters to avoid suction

3. After the first 500 hours of operation of the variable speed hydraulic pump, the oil should be changed and the oil tank and filter should be cleaned. Use visual and laboratory methods to test the oil quality, and change the oil in a timely manner when the oil quality deteriorates. When changing the oil, both the fuel tank and the oil filter should be cleaned at the same time. If there are metal shavings or water in the oil, investigate the cause and troubleshoot

4. Within a short period of time when the liquid level drops, the bearings are lubricated by the splashing oil from the attached oil and plunger spring. The oil filter in the oil tank and the oil filter under the pump are made of 230 mesh/inch copper wire mesh. The oil filter mesh should be cleaned regularly to prevent blockage. When in use, the oil temperature in the oil tank should not exceed 60 ℃, and appropriate measures should be taken for cooling

Whether it is oil discharge treatment or maintenance treatment for Roots pumps, it is necessary to use the correct method and strictly regulate one's own operating behavior. Otherwise, incorrect methods will always cause damage to the equipment itself to some extent. Therefore, before any operation on the equipment, it is necessary to learn how to operate correctly and how to respond correctly and urgently