How to correctly replace the pump core of the vane pump? Zhejiang Yongling Hydraulic Machinery Co., Ltd. elaborated:


1. When replacing the pump core, first check whether the positioning hole in the pump casing is deformed, and whether the matching part of the external spline and the internal spline of the pump core is worn or deformed. If the positioning hole is deformed or the shaft key is worn, it is recommended that the user replace the entire pump.

2. Check whether the shaft seal is aging and deformed, and whether the bearing is worn and loose. Care should be taken when replacing. It is recommended to use a flat hard object with an outer diameter that is consistent with the shaft seal and an outer diameter slightly larger than the inner diameter of the bearing and an inner diameter slightly larger than the outer diameter of the pump shaft In a fixed position, to prevent deformation of the shaft seal and damage to the bearing.

3. Check the model of the new and old pump cores, whether the working direction is the same, and then confirm that they can be installed. Before installation, clean the inner wall of the pump casing, add lubricating oil and then install the pump core. Whether the stator of the pump core and the oil distribution plate are concentric. After adjusting the concentricity, install it. After installation, make sure that the positioning pin of the pump core is fixed on the positioning hole of the pump casing. In order to prevent the seals from being trimmed, the connection angle of the pump casing should be tightened gradually and evenly.

4. When adjusting the direction of the oil pump inlet and outlet, as long as the fixed screw of the pump casing is unscrewed, you can rotate the upper pump casing, rotate the guide to the required position and then tighten the screw; The positioning holes of the pump casing are misaligned or the sealing rings at the connection of the upper and lower pump casings are misaligned.

5. When installing the oil pump, first check whether the sealing ring of the oil pump inlet and outlet flanges and all pipes are aging and deformed. At the same time, the inner wall of the oil inlet pipe should be cleaned of dirt, and the sealing performance of each connection of the oil inlet pipe should be checked.

6. Check whether the shaft and bearing of the motor are deformed and worn. If the shaft swings, you should confirm whether the shaft is deformed or the bearing is worn, to prevent the problem of the motor from affecting the life of the pump.

7. Check whether the coupling is worn and deformed, whether the pump shaft is concentric with the motor shaft after the oil pump is installed, the simple method is to turn the coupling by hand to feel the rotation strength is even and flexible.

8. Before starting the motor, check whether the hydraulic oil in the oil tank is sufficiently clean and whether the filter screen is deformed and clean. It is recommended to thoroughly clean the oil tank and replace with new hydraulic oil and filter screens that meet the standards. The body is filled with hydraulic oil; loosen the exhaust valve of the oil pump outlet to remove the air in the pump body and pipeline, and perform a jog start when there is no load, and then tighten the exhaust valve or oil outlet after normal operation Connector.

9. During the operation of the oil pump, pay attention to whether the oil level, oil temperature, operating pressure, etc. meet the requirements of use. The oil level after normal work is generally higher than the top of the filter by more than 50mm, otherwise the oil pump is easy to suck and produce noise It is best to control the oil temperature below 60 degrees Celsius to prevent the oil temperature from being too high and damaging the protective oil film formed on the friction surface.



The Vane Pumps Cartridge Kits has low noise characteristics and is designed to be easily interchangeable and maintainable. They are sought after by the industry and proved its great role Zhejiang Yongling Hydraulic Machine Co , Ltd . is a professional China manufacturer and supplier of Fixed Vane Pumps and Vane Pumps Cartridge Kits . Welcome to consult and order: https://www.china-vanepump.com/product/t-series-pin-vane-pumps-with-high-pressure/t6c-t6cl-vane-pump-cartridge-kits.html