Hydraulic oil pump repair just 'see 6 to 4' can diagnosis of hydraulic pump failure

hydraulic pump maintenance experience rich return, will summarize a set of effective methods, allow yourself to rapid diagnosis of identifying causes of failure and the location. Usually, such precious experience in maintenance, are not openly share tell others, but the macro industry to xin hydraulic maintenance engineers more than 10 years of maintenance experience enrichment summary is' see 6 to 4 '10 points method, in this share with those in need. As long as you remember to grasp and flexible use, basic can solve the problem of hydraulic pressure oil pump daily simple fault. : a, looking at the real phenomenon of hydraulic oil pump work. Generally there are six look: ( 1) Look at speed. See actuators have speed without changes and anomalies. （ 2) The pressure. The hydraulic oil pump pressure value of each pressure points in the size, pressure value whether the phenomenon such as fluctuations. （ 3) Look at the oil. Observe whether the oil cleaning, ever metamorphism; Oil whether meet the requirements; The viscosity of oil is in line with the requirements; ( 4) See the leakage. The hydraulic pipe, valve plate junction, the tapping the protrusion of the hydraulic cylinder, hydraulic water pump shaft end cover place whether there is leakage dripping and dirties. （ 5) The vibration. Look at the hydraulic cylinder piston rod or workbench etc. Phenomenon such as the moving parts work have no beating. （ 6) See the product. According to the processing of product quality, the motor working condition, the working pressure of the hydraulic oil pump and flow stability. Two, listen to: use a hearing for hydraulic oil pump work is normal, etc. Generally there are four: ( 1) Listen to the work of hydraulic oil water pump noise is too big; If there is a scream overflow valve and other components. （ 2) Listen to impact sound. Refers to the workbench hydraulic cylinder when reversing impact sound is too big; The hydraulic cylinder piston have hit the bottom of the cylinder; Are there any impact on the reversing valve reversing the voice of the end cover. （ 3) Listen to leak. To hear if there is a fine and oil plate internal continuous sound. （ 4) Listen to the sound. Listening to the hydraulic pump operation whether there is a knock.