1、重庆升降机齿轮泵噪声过大首先从外部检查，检查油管、泵的安装架，机架是否松动。若有松动，必须固紧，否则将产生共振，齿轮泵进油管中有无空气。检查方法是仔细听运转部分的声音，在结合部加一点油，若声音变小，说明此处密封不好，漏气，应拧紧接头或更换衬垫．密封圈和接头等。
Hangzhou lifting platform first gear pump excessive noise from external inspections of pipeline, pump mount rack is loose. If loose, must be tightened, or they will have a resonance, presence or absence of a gear pump air into the pipeline. Listen carefully to the sound check is part of the operation, add a little oil at the junction, if the sound becomes small, indicating that the seal is not good here, leak, should tighten the fittings or replace gaskets. Seals and joints.
2、检查升降平台油箱液面是否达推荐值，进油管口是否始终低于液面，否则向油箱加油，油液粘度过高。油液应该按齿轮泵使用说明书上的要求选用，并检查在工作温度下的粘度。
Check the tank level Hangzhou lifting platform is up to the recommended value, the intake pipe mouth is always lower than the level, otherwise the fuel tank, the oil viscosity is too high. Oil should be based on the requirements of the specification on the gear pump selection and check the viscosity at operating temperature.
3、升降平台泵进油管口径太小。检查流速不超过l．2-1．5米/秒，回油管布局不当。在低液面时，回流产生涡流，带有气泡，应加足油液，调整同油管位蹬。
Hangzhou lifting platform pump inlet pipe diameter is too small. Check the flow rate of no more than l. 2-1.5 m / s, improper return pipe layout. At low liquid level, flow generating vortex with bubbles, should add a little oil, adjust the pedal position with tubing.
4、检查升降平台齿轮泵进油管路的过滤器上是否有脏物，排除力法是用油冲洗掉脏物，从泵轴密封处或泵体泵盖接合处渗入空气。可以更换油封或纸垫，由于液压油中的尘埃、异物进入齿轮泵，使齿轮泵一部分受损，需要更换被损零件。
Hangzhou lifting gear check if there is dirt on the platform pump inlet line filter to exclude force method is to flush out dirt oil from the pump shaft seal or pump air pump cover joints infiltration. You can replace the seal or pad of paper, as a result of the hydraulic oil in the dust, foreign matter into gear pumps, gear pumps damaged part needs to be replaced was damaged parts.
5、升降平台齿轮泵零件松动。必须将松动零件拧紧，齿轮精度低，在啮合时产生噪声，需更换高精度齿轮。
Hangzhou lifting platform pump gear loose parts. Loose parts must be tightened, low gear precision noise when engaged, to be replaced with high precision gears.
