2XZ-type rotary vane vacuum pump failure and its elimination method: (I), 2XZ-type rotary vane vacuum pump ①oil level is too high, you can enter excess oil. ② mist reducer pump oil or debris, should be removed. ⑵, 2XZ rotary vane vacuum pump back to the ①check valve is not closed, after stopping the pump, the oil level dropped quickly, and then re-open and then stop to observe changes or open inspection. ② The two pump cover seal improper assembly or wear, can be exchanged. ③ pump cover or pump plane is not flat, can be trimmed. ④ exhaust valve damage, should be exchanged. Note: Check the pump ultimate vacuum to compression mercury vacuum gauge shall prevail. (3), 2XZ type rotary vane vacuum pump leakage ①drain plug, tank gasket or improper assembly, screw tightening; ② oil tighten, plexiglass overheating deformation; ③ 2XZ rotary vane vacuum pump body parts and support connections The gasket is not well pad; improper assembly or wear oil seal; should be adjusted or replaced. Iv, 2XZ type rotary vane vacuum pump noise ①rotary blade spring break, you can change the spring. ② Burr, dirt or deformation, the operation of obstacles, should check the grinding cleaning. ③ bearing wear, wear parts. Should be trimmed or replaced. ④ motor problems, should be checked. ㈤, 2XZ rotary vane vacuum pump is not high vacuum and its elimination ①oil level is too low, there is a large exhaust sound, you can add a clean vacuum pump oil. ② pump oil for condensable steam pollution, gas can be opened town clean or replace the new oil. ③ 2XZ rotary vane vacuum pump external pipes, containers, test instrumentation pipes, fittings and other leaks. Big leak, there is a large exhaust sound, exhaust vent vent, should find the leak site, to eliminate. ④ intake nozzle or gas seal rubber seal diagram improper assembly, damage or aging, should be adjusted or replaced. ⑤ 2XZ-type rotary vane vacuum pump inlet hole plugged, can be set aside into the oil nozzle, clear the hole. ⑥ serious pollution of the vacuum system, including containers, pipes, etc., should be cleaned. ⑦ 2XZ-type rotary vane vacuum coil spring break, should be replaced. ⑧ rotary blade, pump or pump cover wear, the gap is too large, should be checked, trimmed or replaced. ⑨ pump temperature is too high, should improve ventilation and cooling. If the pumping gas temperature is too high, it should be cooled before entering the pump.
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