Abnormal sound of hydraulic system, hello about the abnormal noise of hydraulic press!

There are several possibilities.

1.The valve has an internal leak but is not serious.

2.The air filter of the oil tank is blocked, so that the oil suction resistance of the pump is too large or even empty.

3.There is a problem with the processing of the pump itself, the mating gap is not suitable, and there is a strong vibration during operation.

4.Problems with the system itself. The oil supply pulsation of the pump is close to the natural frequency of the unit and naturally resonates.

5.The accumulator is under no pressure.

Look at the system to see if it's overheating. Listen to the sound of the pump, if there is an intermittent popping sound, it means that there are bubbles in the oil, this is more serious, and the pump should be dismantled to see. I have a pumping station that also vibrates.

But everyone is lazy, they all make do with it, and it's now the third year, so it's still as usual. If the gauge needle doesn't jump much, just a sound, it's not a big problem. If you don't want to move, you'll settle.

Could it be a problem with the oil pump, is it sucking air? Does the system use pressure exceed the oil pump service pressure? Also, check the relief valve!

Abnormal noises caused by valve guide wear require dumpling of the valve guide and installation of a thick valve stem valve. If the hydraulic tappet has an abnormal noise and needs to be replaced, it is impossible not to disassemble it, so it is almost impossible to solve the problem of abnormal noise of the hydraulic tappet without disassembly. A hydraulic tappet is a device on an engine's valves.

Common engines use a double overhead camshaft design. This engine has two camshafts, one that controls the intake valve and the other that controls the exhaust valve.

<> If there is an abnormality in the hydraulic tappet between the camshaft and the valve, it needs to be replaced. Car engines generally have a four-valve design per cylinder, that is, two intake valves and two exhaust valves, and some cars have a five-valve design, that is, two exhaust valves and three intake valves. When the engine is working, the valves are very important.

If the valve does not work properly, it will directly affect the normal operation of the engine. If the hydraulic tappet has an abnormal sound, most of it is caused by wear. Some cars have some noise from the valves after driving more mileage, mostly from hydraulic tappets.

Leather digging. <> there is air in the oil pump; This type of failure usually occurs when a new oil pump is installed. When opening a new oil pump, lubricating oil should be added to the oil pump to lubricate the bearings, plungers and cylinder blocks of the oil pump. Dust Mold Handling Method:

Open the oil filler port of the oil pump when the pump is running, so that the air in the pump is discharged from the oil filler; The reason for the tappet sound is that the cylindricity of the tappet or guide hole is large, the roundness deviation, or the fit is loose; Due to the wear and deformation of the large end of the tappet or the CAM (the CAM loses its original axial slope), the tappet does not rotate or rotates inflexibly in the guide hole; Poor lubrication of spatter.

Do a detailed interpretation of the problem,I hope it will help you,If there are any questions, you can leave me a message in the comment area,You can comment with me more,If there is something wrong,You can also interact with me more,If you like the author,You can also follow me,Your like is the biggest help to me,Thank you。

First of all, you should visit the 4S shop in time for maintenance and repair. Find the exact place where the abnormal noise is occurring. Solve the macro problem.

If the balance bar is loose, it is necessary to repair the glue in time, and if the ball valve is leaking, the ball valve should be cleaned and replaced with new oil. And it is possible to change the natural frequency of the piping system. Change the direction of the control valve.

Effectively reduce the abnormal noise of the hydraulic system.

First of all, it is necessary to determine where the abnormal noise is located, you can make certain adjustments to the parts of the abnormal noise, and replace the parts, and you need to go to some places where the filter has been cleaned regularly, you can dredge the air intake pipe, and you can also choose to go to the 4S shop or repair shop for inspection and maintenance.

You should stop in time, observe the index on the dashboard, get out of the car and open the hood to check Huiqing, look for a guide on the Internet, or submit it to the surrounding people, if you feel that you are not very good, you can dial the front Kailu in time to rescue **Sun lead, and wait for the 4S store to rescue.

If the car has abnormal noise in the hydraulic system, you can solve this problem by adding gasket balance bar glue, or you can accompany the transportation to see if it is oil leakage, add some acetone such a cracked solvent, and clean it before making it use.

Summary. Kiss, hello air invasion.

When the air enters the low pressure area, the volume is larger, and when it enters the high pressure area, it is compressed and becomes smaller, and then when it enters the low pressure area, the volume suddenly becomes larger, so the circulation change will make the bubbles change suddenly, and the phenomenon of "**" will occur, so it will produce noise.

Solution: If there is air entering, it needs to be exhausted, usually the feed exhaust device can be set on the hydraulic cylinder, and another way is to make the actuator repeatedly exhaust several times in a fast full stroke after starting.

Hello about the problem of abnormal noise of hydraulic press!

When the air enters the low-pressure area, the volume is larger, and when it enters the high-pressure area, it is compressed and smaller, and then when it enters the low-pressure area, the volume suddenly becomes larger, so the cyclic change will make the bubbles change suddenly, and the phenomenon of "**" will occur, so that the noise will be generated. Solution: There is air entering the need to exhaust, usually can be set on the hydraulic cylinder has been given exhaust device, and another way is to disassemble after starting, so that the actuator is repeated several times with a fast full stroke of the base exhaust.

Do not press down after pressing.

Abnormal noises occur. The accumulator is under no pressure. You see if the system is overheating. Listen to the sound of the pump, if there is an intermittent explosion of the sound of cracking, it means that there are bubbles in the oil, you need to disassemble the pump to see empty-handed.

Check the pressure back to the valve when the pressure is normal.

The return valve is**.

It needs to be taken apart inside the machine.

Re-weld the cracks. Clean the solder joints and welding slag, fill the hydraulic oil, remove the air from the main pump, and the test machine failure disappears. Half an hour after the test machine, there was no abnormal sound.

Once the hydraulic fluid has been completely drained, the main pump is removed for disassembly. After the disassembly of the main pump, there is no obvious abnormal wear on the parts of the pump, only the cylinder block and valve plate have slight wear. After grinding, the parts of the pump are cleaned and assembled into a hydraulic pump for installation.

Then add hydraulic oil to remove the air in the main pump, and when the machine is tested, the abnormal sound disappears, but after 5 minutes of work, the abnormal sound appears again. The solution to the abnormal sound of the hydraulic pump.

Choose a hydraulic oil with the right viscosity, and if the oil temperature is too low, it should be heat-treated.

The fuel tank level is too low; The blockage of the suction pipe makes the oil suction resistance of the pump larger, resulting in the oil suction of the pump or the oil inlet pipe section leaking, and the pump sucks air. Solution: Add enough oil according to the regulations; Clean the filter and dredge the inlet pipe; Check and tighten the connecting screws of the inlet pipe section.

Because the pump needs to be discharged from the hydraulic oil tank, when the oil tank cover is opened, it is found that the hydraulic oil has been milky white, the maintenance master thought that the hydraulic oil entered the water and was emulsified, and then carefully observed that the milky white hydraulic oil contains a large number of bubbles, these bubbles are evenly distributed, so that the hydraulic oil becomes milky white, at this time, it is more suspected that there is a fault inside the hydraulic pump caused by bubbles in the hydraulic system.

Do a detailed interpretation of the problem, I hope it will help you, if you have any questions, you can leave me a message in the comment area, you can comment with me more, if there is something wrong, you can also interact with me more, if you like the author, you can also follow me, your like is the biggest help to me, thank you.

First find out the reason for the abnormal sound of the hydraulic system in the car, if the balance bar glue is loose, you can increase the gasket, if the ball valve begins to leak, you can clean the ball valve and then pour in special solvent, replace some damaged parts, check the relief valve, if you can't solve it yourself, you should go to a professional car repair shop to solve it.

If the glue of the first balance bar has signs of loosening, you can further increase the gasket to solve the problem, if the ball valve leaks, it should be put into the corresponding solution in time to clean, and then add some hydraulic oil, if the hydraulic tappet has abnormal noise, you should go to the car repair shop to replace the car components, so it is more convenient.

If it needs to be replaced, it is almost impossible to solve the problem of abnormal noise of the hydraulic tappet without disassembly, and it can also determine the location of the abnormal noise, where to make certain adjustments, to replace, etc., to check and maintain regularly.

If the sense of balance is loose, you can add a gasket to solve it, which is the easiest and most effective way to adjust the pressure, but it is best to go to the 4S store to see, if you repair it yourself, you are afraid that there will be problems and hidden dangers.

If the glue of the first balance bar has signs of loosening, perhaps further increase the gasket to solve the problem, if the ball valve leaks, it should be put into the response solution in real time for cleaning, and then add some hydraulic oil, if the hydraulic tappet has abnormal music, it should be car.

The reason is that the steering power pump is faulty, and when the steering pump is working, it makes noise. The filter element or suction pipe is partially blocked or passes through a small area. At this time, what we need to do is to clean the filter or suction tube and replace the corresponding filter or suction tube.

Inhale air bubbles. This situation is more common in newly installed oil pumps, we have to run no-load to remove air; Separate the suction pipe from the oil return pipe at a certain distance, so that the oil return pipe mouth is inserted into a certain depth below the oil surface, and the oil return pipe cannot be placed above the oil level.

<> hydraulic pulsation in the hydraulic pipeline, improper matching of the length of the pipeline and the installation position of the components, blockage of the suction filter, leakage of the suction pipeline, too high or too low oil temperature, loose pipe clamp, etc.; The methods of prevention and elimination are: adding an accumulator or muffler at the outlet of the hydraulic pump, reasonably determining the length of the pipeline and the installation position of the components, cleaning or replacement, improving the sealing, checking the working status of the temperature control components, fastening, etc. The electro-hydraulic valve solenoid fails, and the control pressure is unstable; The methods of prevention and elimination are:

maintenance, choose the appropriate control oil circuit. The mechanical parts of the hydraulic pump are not connected with the prime mover or are loose, the hydraulic pump is poorly installed, the coaxiality of the pump and the motor is poor, the prime mover base, the hydraulic pump bracket and the fixing screw are loose, and the mechanical transmission parts (belts, gears, racks, bearings, connecting rod systems) and the motor fail; At this point, some unusual sounds will occur and the pump will have to be reinstalled to meet the technical requirements.

The methods of prevention and elimination are: readjusting, tightening screws, tightening screws, overhauling or replacement. When the engine is at medium speed, there is a rhythm"Click, click"Sound.

Indicates that the engine oil level is too high or too low, causing the oil to bubble into the hydraulic cylinder, forming an elastomer and producing noise. Fault diagnosis and elimination) check the oil level, add or discharge according to the situation, so that the oil volume is normal.

Do a detailed interpretation of the problem, I hope it will help you, if you have any questions, you can leave me a message in the comment area, you can comment with me more, if there is something wrong, you can also interact with me more, if you like the author, you can also follow me, your like is the biggest help to me, thank you.

You should go to the auto repair shop for repairs, because the master of the auto repair shop is more professional and can fix this fault quickly.

You should stop in time, call the rescue**, find the cause of the failure, and communicate with the rescuers in a timely manner, park in a more secluded place, and do not affect the traffic.

The car should be driven to an auto repair shop and then repaired by a professional mechanic.

What do you do when your car's hydraulic system makes an abnormal noise?

When driving, you will find that the hydraulic system of the car has abnormal noise, how to solve it?

The loosening of the glue of the first balance bar can be solved by adding a spacer. The easiest, quickest, and most effective way to do this is to adjust the setting pressure. If you can't adjust half a circle, you can't adjust a circle, you can't adjust a half-circle.

The filter must work properly and smoothly. Therefore, once you find a problem with the filter, you need to clean the filter to remove the dirt. When installing the gears of the hydraulic cylinder, it is necessary to pay attention to the gear meshing accuracy.

The more precise, the better.

Second, if the ball valve leaks, put the plunger into a special solvent such as acetone and clean it thoroughly before continuing to use; The viscosity of the hydraulic oil is too high; The self-priming capacity and volumetric efficiency of the pump are reduced. Treatment: Choose hydraulic oil with appropriate viscosity.

If the oil temperature is too low, turn on the heat and add enough oil to the root clumps; Clean the filter and dredge the intake pipe quickly; Check and tighten the connecting screws for the inlet pipe section. It can prevent vibration and reduce noise.

Thirdly, if the hydraulic tappet makes abnormal noise, most of it will be affected by wear. After some cars have traveled a longer distance, the valves make some noise. Most of this noise comes from hydraulic tappets.

If the reversing valve used is a hydraulic reversing valve, the throttling element in the control oil circuit should be adjusted to make the reversing smooth and impact-free; By changing the natural frequency of the piping system, changing the position of the control valve or adding the accumulator as appropriate.

Fourth, clean and dredge the yin holes; Check the relief valve. If it is damaged, it should be repaired or replaced in time. If the sound of the equaliser bar glue is not coming from the flat bearing of the shock absorber, check that the equaliser bar glue is not loose or damaged.

If the glue of the equalizer bar is loose and damaged, it will make a sound not only in the direction of travel, but also when crossing uneven roads. If damaged, it can only be replaced. When the hydraulic cylinder is working, the oil must be added to the standard position to ensure the normal operation of the hydraulic cylinder and appropriately reduce the oil suction position.