hydraulic vane pump troubleshooting

Hydraulic vane pump troubleshooting is the subject of this blog post. Most users of such pumps know what they are doing and how to repair them in case of any hitch, but it can be highly confusing for others.

Problems on shafts

The shafts of hydraulic vane pumps are faced towards many problems. The causes of some of these problems are discussed below. If you have one such problem, ensure that you act with speed and troubleshoot it immediately.

-Fluid leaks
-Shaft misalignment
-Damaged or bent shaft
-Worn or degraded gears

Cartridge screws not properly mounted

In case of any difficulties with your hydraulic vane pump, the screws attaching the cartridge may be improperly tightened, causing the vanes to fail in moving freely downwards and upwards. The screws have to press against the cylinder for the vane movement to take place. In a situation where they are not tight enough, the vane can float on screw thereby causing it to wear out more quickly. You should take them out and observe them critically in order to ascertain whether or not they were properly mounted. Where they seem loose though, employ a wrench to tighten them up.

Hollow push pin wrongly mounted

It is highly likely that, if there are problems with one’s hydraulic vane pump, wrong installation of the push pin that holds the vane in position might be having occurred. This could hinder it from functioning properly or even result to breakage of the vane. To establish whether the push pin has been fixed as expected, you can detach it and check whether the vane moves freely once you turn on the pump. If not so, then probably the push pin is wrongly installed and needs replacement.

Loose fasteners

Hydraulic vane pumps are employed in diverse industries in order to move fluid and gas. They are also found on the agricultural machinery, trucks, and boats. Hydraulic vane pumps ought to be kept away from water and dirt since they operate within wet environments.

Let’s look at some common issues that people have with hydraulic vane pumps:

1.The first step is to check the fastenings that hold the hydraulic vane pump in position. This pump can fail if it has loose fasteners. Inspect them for corrosion, tightness and wear, replacing any which have such characteristics.

2.Clean areas around the pump where there might be debris. This will prevent damage because of debris accumulating.

3.Check if the fluid level of the hydraulic vane pump reservoir is full or not. A low level of fluid in the reservoir may hinder proper operation of this machine. Thus, you should fill it up accordingly.

4.Filters or lines should be checked for clogs, if found then they must be cleaned or replaced as necessary

Marks on port plates

Several things may be deduced from marks on port plates. In case the marks are fresh and not pre-existing, they can be as a result of foreign object getting inside vane pump and being trapped by the port plates. It may also be due to improper lubrication of the pump that is causing it to wear out its port plates too early.

If the signs are old and have been around for a while, this could imply that the port plates have gathered dirt and cannot work properly. Alternatively, it is vital to scrutinize the port plate along with any fixing or setting that might be necessary.

Fretting corrosion

However, your workshop can be facilitated with hydraulic vane pumps which are reliable and efficient. However, they can stop working just like any other mechanical devices. Failure to pump fluid efficiently or at all is a sign of this problem. In some cases, the malfunction may be caused by fretting corrosion which is a type of wear arising from metal touching each other. The following paragraphs have highlighted some of the troubleshooting steps for hydraulic vane pumps with fretting corrosion.

1.Always see to it that the oil level does not exceed the minimum recommended level in case the latter starts decreasing, fretting corrosion, if based on reduced oil pressure will keep off a potential disaster as far as this is concerned.

2.Examine both bearings and seals for any signs of wear or damage. If any of them are bad then they might be contributing to this pump problem.

3.Check out whether there is excessive damage or wearing on the impeller, which could lead to poor fluid flow.

4.See if there are obstructions in the piping system and ensure passages are clear of debris. Removing such blocks that prevent proper lubrication will result into improved operation.

Shaft splines/keyed shaft worn

Hydraulic vane pumps are a ubiquitous piece of equipment in many industries. They are employed to transfer fluids, like water or oil, and can be seen in industries such as power production and refining plants. Due to their prevalence, hydraulic vane pumps malfunctions occasionally do occur.

There are a few things you can do if your hydraulic vane pump is not working properly. check the fluid levels in the storage tank and cylinder. If there is any mistake in the level of fluid, then test for seal around spline shaft. If broken or worn out, this seal might render a pump incapable of delivering enough fluids to cause it work normally. In addition, if the pump does not deliver any fluids at all; it may be caused by a bad motor/ gearbox. Therefore, you will need to replace the whole pump assembly under such circumstances

Fatigue shaft rupture

When the vane pump fails, it’s crucial to troubleshoot its hydraulic system in order to resolve a failure of circulation. If not properly diagnosed and rectified, the problem can be disastrous.

This blog post will discuss three common failures of hydraulic vane pumps and outline the troubleshooting steps necessary for each of them. Following these steps is a way of avoiding high repair costs and saving time as well.

1.Fatigue shaft rupture: The fatigue when a metallic part of the shaft becomes exhausted due to repeated usage, so that it can breake cause under pressure from hydraulic fluid. For instance, this may be occasioned by overuse or an abrupt event such as temperature decrease. If you find out that your pump cannot circulate fluids as expected, ensure that you check if there are any signs of fatigue on the shaft. Then take immediate action to replace the damaged parts.

2.Seized bearing: A ball or roller bearing which stops your pump from moving freely is regarded as seized bearing. In case there has been accumulation debris in bearings or due to wear and tear / abuse they have deviated their alignment sometimes this situation happens too.

Bush/bearing problems

Pump problems with the vanes of Hydraulic pumps are usually either a bush or bearing gone bad, or a failed hydraulic oil reservoir. In these cases, there are several simple steps that one can follow to have your vane pump back in operation as fast as possible.

When you can identify which part is causing the problem it’s better to troubleshoot that part first before moving on to the next step. Nevertheless, if failure is systemic and affects multiple parts then it’s normally a good idea to replace the whole vane pump assembly. The following tips will help you in troubleshooting each of these scenarios:

Bad Bush/ Bearing: To begin with, assuming you know what part is defective try testing that specific part using basic tools such as voltmeter. If this is the case, it may register low voltage when tested using this method. Then check if replacing it with a known-good one helps solve the problem. Otherwise, get avolunteer for newbush/bearing.

Marked cam ring

Hydraulic vane pumps are used in many applications from water pumps to farming equipment. Any mechanical device may have issues, and hydraulic vane pumps are not an exception. Let’s discuss some of the common problems experienced while troubleshooting hydraulic vane pump as well as how to rectify them in this write-up.

Shaft seal loosing contact

If your hydraulic vane pump is not working, it could be because the shaft seal has lost contact with the shaft. To test this, you need to remove the shaft from the pump and check for leakage around the shaft seal. In case there are any leaks, you should then install a new shaft seal and finally reinstall your pump. However in case there are no leaks, probably it means that; your pumps’ shaft seal is worn out an indication that calls for replacement of the entire pump unit.

Dissymmetrical wear on the port plates

Understanding the basic principles behind hydraulic vane pump troubleshooting is a difficult task. In this blog, we are going to talk about the most common forms of irregular wear and how they can be corrected.

We’ll also cover some of the signs that your hydraulic vane pump is in trouble. If you’re experiencing any of these symptoms, it’s important to get your pump serviced as soon as possible.

Broken dowel pin

The fractured dowel pin could be due to many reasons such as overworking, poor installation, or sabotage. Replacing the whole pump assembly is not always required in such a case. Here are four steps on how to troubleshoot a broken dowel pin.

1.Check for fluid level. If the pump has low level of fluid, you should add additional fluids until it starts working well.

2.Power/ground continuity check up. In case there is no power and ground continuity, replace the electrical connector or switch.

3.Examine the pump for damage. If the pump is significantly damaged, it might have to be replaced.

4.Inspect the wear and tear of dowel pin; if there is any wear/damage on it replace it too

Noisy pump

Excessively noisy hydraulic vane pumps may indicate serious problems that need to be resolved urgently. This is in cases where the noise is constant and increases as the pump works leading to a conclusion that there is something wrong with the pump or its system. Mostly, such issues can be solved by taking some simple actions. But if it occurs either periodically or randomly there might be a severe problem requiring professional help.

Parallel marks on the port plate

In many applications of hydraulic vane pumps, they should operate properly so as to ensure smoothness of flow and best performance. It’s necessary that when experiencing malfunctioning of a hydraulic vane pump you could address this issue without any delays in order not to let the situation get worse leading to more damaged or unproductive state.

Parallel marks on the port plate are common issues with hydraulic vane pumps. They are observable when the flattens of the vanes do not spin together and cause flow of liquid in bands on the port plate rather than as a continuous stream.

To correct this problem, you should establish which part is causing this imbalance. Often times, this will be a component on the pump’s drive train such as a belt or pulley. In case that is not it, then maybe you need to replace it at all.

Pressure overshoot

A common type of fluid mover is the hydraulic vane pump. In that case, these machines must sustain a defined pressure output regardless of the volume of liquid carried in them. However, where there is a pressure overshoot leading to an inappropriate pumping pressure then this can cause damage to the machine and possible injury.

If you have problems with your hydraulic vane pump, there are several things that you can do in order to diagnose it. The first one is checking for operational specifications with your pump to ensure that it is operating within its normal range. On the other hand, if your pump cannot provide an acceptable output pressure, you should also consider on what causes overshoots.

One reason behind the hydraulic vane pumps experience over-shooting in terms of pressure is due to worn out or damaged part. In case the part brings about very much abrasion on such equipment, it results into such pressurized flow; besides, a faulty functioning component that occurred as a result of wear and tear would definitely lead to this over shooting as well.

Instant pressure overshoot

Troubleshooting hydraulic vane pumps If your hydraulic vane pump has an overshoot in pressure that is immediate, there are several steps you can take to identify the problem.

Make sure that the liquid level in the vane pump is appropriately set.
Ensure that it was properly installed and its function is in place
Confirm for any clogs or blockage within this system. When the fluid level in the vane pump is right, then probably that would be a challenge to do with installing or operating of the pump.

To be able to check on clogs and obstructions, one can try using a plunger so as to clear all impediments from this system. If not, you may have to get another impeller pump.

Cycled overpressurization

As reliable as hydraulic vane pumps can be, they sometimes cycle to high pressure. When this occurs, the pump may become excessively hot and stop working. Here are some hints for troubleshooting cycling overpressurization of hydraulic vane pump.

Examine the gauge reading. If it is high or low, this might mean that the pump cycles between pressures when cycling overpressurisation.
Monitor oil level in the system. A shortage of oil could make the pump overheat. Therefore, always replenish it with new oil.
Inspect fan belt condition. In case the belt is damaged or worn out, it may lead to overheating of the pump. In such instances, replace it to minimize losses.
Look for blockages in your system: a clogged filter, valve or pipe can cause cycling over pressure in a Hydraulic Vane Pump; remove any obstacles then try again

Pressure gradients

Hydraulic vane pumps, widely deployed in industrial and agricultural spheres, can cause malfunctions if operated incorrectly because of high pressures and flow rates they generate. Now let’s look at some troubleshooting tips for hydraulic vane pump problems.

Observe the correct operation by checking the pressure and flow rate.
By using a pressure gauge to measure decrease in system’s fluid level find any leaks.
The distances between each vane to the housing is the only way to keep vanes in alignment.
If any faults are found, try adjusting some of the parameters mentioned above until it is resolved.

Inquire about the price of a Rexroth vane pump

Start-up without a proper air bleed-off

Different applications use hydraulic vane pumps; however, they can be a problem in case of inappropriate air bleeding. One common problem facing the pumps is that there is an interruption in the start-up sequence if there is no sufficient air flow. This results to problems when starting up and could even cause damage. There are situations where the issue can be rectified by simply reconfiguring the air bleed off or using a different type of pump.

Air contamination – Fluid foaming

Fluids like water or oil are moved through systems using hydraulic vane pumps. These pumps make use of Bernoulli’s principle to move fluid. The above principle explains that the fluid will start moving in a circular motion if subjected to high pressure than low pressure force and consequently it is called vortex. Sometimes, air can enter into this whirlpool thereby, causing malfunctioning of the pump. Below are some troubleshooting tips for hydraulic vane pump problems caused by air contamination:

1.Detect Leaks: When a system has any signs of leakage; that is when bubbles or forms found around the system then air will be also finding its way inside hence affecting how the pump functions. If you see any signs of leakage please fix it as soon as possible.

2.Unblock: Air may obstruct the flow in case there are any obstructions in a system. A snake can be used to remove blockages where necessary, on another hand just keep pumping manually until it is no more present neither seen nor felt.

Solid particle contamination

Troubleshooting hydraulic vane pump is hard when the contamination is solid particle. First, the source of contamination must be ascertained. If it originates from a hydraulic vane pump then likely the pump itself is in trouble. However, if it is not originating from inside a hydraulic vane pump, there are other steps that need to be taken to clean up such places.

Water contamination

The hydraulic vane pump systems are usually used in industries and commercial places whereby there is need of keeping the water very clean without any contaminants. Regrettably, these pumps can be vulnerable to contamination. In case the hydraulic vane pump is not functioning properly, some few things should be examined before.

Mixture of water with other substances is one of the major causes of problems experienced by hydraulic vane pumps. If all the impurities are not eliminated by the system, clogging and decline in performance will occur as a result. Therefore, it is necessary to examine if there are signs of water contamination prior to repairing or replacing anything on the hydraulic system. Some common signs which may indicate contamination by water include:

-Unpleasant smell

-Flood

-Low pressure readings

-Inability to remove trash

Viscosity failures

Some of the reasons for hydraulic vane pump failures are; lack of proper lubrication, choked nozzles and worn or misaligned parts. But in most cases, viscosity control system failure can be said to be the cause. Here is how you can trouble shoot hydraulic vane pump failures:

1.Check oil level and flow rate: The high rise oil level and reduced flow rate are maintained by using low viscosity oils. If the flow rate is too high it will wear out the bearings, seals and shafts.

2.Clear any blockages with a plunger or snake before proceeding if there are clogged nozzles. If these obstructions do not exist, go through the nozzle tip’s inside in order to check for rubbing or scoring on them. In case they do appear, then it may require that you change the nozzle.

3.Prior to moving forward replace all worn out components with new ones; this helps to keep right viscosity control thus avoiding further future pump failures which might occur due to wrong viscosities.

Unsuitable fluids

Hydraulic vane pumps are used in various industries for the purpose of transferring liquids and gases. Once in operation, these particular pumps can move large volumes of fluids at a rapid pace with high efficiency. However, the question arises as to what may have led to improper functioning of the pump. In this article we will talk about common problems faced while troubleshooting hydraulic vane pumps.

When diagnosing a problem with a hydraulic vane pump you should first check the fluid that it uses. Most pumps are designed to operate with certain types of fluids; therefore, if such fluids do not match up, then they will not function as intended. If the fluids are suitable yet the pump seems not to be working well, there could be mechanical faults in its design or construction. Either way, one should seek assistance from qualified personnel for diagnosis and repair purposes.

Unsuitable grease

When the hydraulic vane pump fails, it is probably due to wrong grease. Also ensure that there is no dirt in the grease that you are using and then apply it well on the vein. Another option would be replacing the vane for even better results.

vane pump troubleshooting FAQ

What are the common hydraulic vane pump problems?

Hydraulic vane pumps are one of the most commonly used types of pumps in industrial and commercial applications. They are used to move fluid, such as water or oil, up or down a pipeline. When they fail, they can cause big problems.

Here are some of the most common hydraulic vane pump problems:

Broken or clogged impellers: One of the most common problems with hydraulic vane pumps is broken or clogged impellers. This can happen when the pump is overloaded or when the impellers become worn out over time.

Lack of fluid flow: If there is not enough fluid flow through the pump, it will not be able to move the required amount of fluid. This can be due to a broken pipe, clogged impellers, or a faulty motor.

Overheating: If the pump overheats, it can cause damage to itself and surrounding equipment. Overheating can also lead to a loss of fluid pressure, which can cause the pump to stop working altogether.

rotary vane pump troubleshooting

A rotary vane pump is a type of reciprocating pump that uses a rotating blade to move fluid. This type of pump is used in industrial and commercial applications, such as water treatment and drainage. Rotary vane pumps can be difficult to troubleshoot and repair, due to their intricate mechanisms. In this article, we will discuss some common problems with rotary vane pumps and how to fix them.

If you are experiencing issues with your rotary vane pump, start by checking the fluid level and the impeller. If the fluid level is low or the impeller is not turning, the problem may be with the motor or the gearbox. If the fluid level is high or the impeller is turning, the problem may be with the housing or the blades. Finally, if none of these solutions work, it may be necessary to replace the pump.

sliding vane pump troubleshooting

Hydraulic vane pump problems can be difficult to diagnose and fix. This is due to the fact that the pump is often used in difficult or inaccessible places, making it difficult to access the internals.

Here are some tips for troubleshooting hydraulic vane pumps:

1.Check the fluid level and make sure it is clean and clear. If the fluid is dirty or has chunks in it, it will not work properly.

2.Try to restart the pump by pressing thebutton. If the pump does not start, check for any broken or loose connections.

3.If the pump still does not start, check for electrical issues by checking for power at the pump’s outlet and at the circuit breaker. If everything looks okay, try replacing the motor or gearbox.

vickers vane pump troubleshooting

Hydraulic vane pump troubleshooting is one of the most common repairs people need to make. This is because these pumps are used in many different applications, including water and sewage treatment plants, mines, and oil refineries. The symptoms of a hydraulic vane pump problem can vary, but they all have one common element: the pump is not moving fluid.

When diagnosing a hydraulic vane pump problem, the first step is to identify the malfunction. This can be done by reviewing the pump’s operating records or by inspecting the equipment itself. Once the malfunction has been identified, the next step is to determine the cause. This can be done by conducting a test on the machine and following the results. If an external factor is causing the problem, it will need to be corrected. Otherwise, the machine will need to be replaced.

rotary vane vacuum pump troubleshooting

Hydraulic vane pump troubleshooting is a tricky process, but with the help of a diagram and some simple steps, you can fix most common issues. Follow these tips to keep your vacuum pump running smoothly:

1.Make sure all hoses and connections are tight. Loose connections can cause your pump to overheat and fail.

2.Inspect the blades for any damage or wear. If the blades are damaged or worn, they may not be able to move the fluid efficiently and could cause your pump to overheat or fail.

3.Check the vacuum pressure gauge to ensure that it’s reading correctly. A low vacuum pressure can mean that either the pump is not working properly, or there is something blocking the fluid flow.

4.Turn off the power to your pump and check for any clogs in the lines or valves. If you find any clogs, remove them using a plunger or a pipe cleaner before turning on the power again.

Is vane pump too small to be used with larger than 10 mm tubing?

vane pump does in fact support use with tubing up to 10mm. It’s easy to convert a vane pump system that you are using with larger than 10mm tubing into one that would accommodate the smaller tubing. It just requires connecting the main line to the output port of the pump, and then connecting the output port of the pump to any chamber on either side of the device in order to draw fluid from each chamber instead of a constant source.

What type of oil do I recommend for my vane pump?

The vane pump is not a motor, so any type of engine oil can go on it. It uses the piston and hydraulic fluid for suction, so any type of hydraulic oil such as Redline Diester can go on the vane pump.

What is the difference between hydraulic and mechanical pumps?

A hydraulic pump has a spinning impeller that turns inside of a container filled with liquid. The liquid falling from the rotating turbine is then converted into pressure and moves the other end of the container to lift the liquid. In contrast, in mechanical pumps the liquid enters through a valve into another chamber before being lifted up.