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Pumps are the heart of hydraulic systems, and when they quit working, your equipment is dead. That’s why it is so important for you to know the four key signs of an impending pump failure!

Right before a pump completely fails, operators usually notice a loss of power or change in how the machine behaves. For example, the arms on a skid steer loader might not have their normal lifting power or the arm on a compact excavator may behave erratically. The arms on an excavator or a skid steer may be moving much more slowly.

Another bad sign is a pump that suddenly starts making some new noises or exhibiting excessive vibration. That can point to quite a few different causes, from loose set screws to failed bearings.

Another bad sign for pumps is when they start running hotter than normal. That can point to quite a few things, such as contamination in the system or a dirty heat exchanger. It can also point to issues within the pump, too.

Leaks are another bad sign, and when ignored they can lead to a host of problems for your pump. A leak indicates that a seal is wearing out and needs to be replaced -- and this makes sense, because seals will eventually wear out.

If you ignore the leak, then dirt, grit, dust, grease, and moisture can make their way into the pump. This type of contamination will cause the pump components to wear out faster than they should, and lead to clogged filters.

If you see any of these symptoms, then you need to schedule some time to have your pump repaired. The solution might be as simple as replacing a seal or bearing, or it could be a more troubling issue like cavitation. Regardless of the

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Your hydraulic pump is the heart of your machine, pumping fluid through your hydraulic system. Pump failures mean downtime and expensive repairs, but the sooner you recognize pump problems developing the easier it is to fix. In this Shop Talk blog post, we are going to discuss, we are going to discuss the most common signs and causes of hydraulic pump failure.

If you notice any of these symptoms, keep in mind that it doesn’t necessarily mean that the pump is going out -- but it means something in your hydraulic system is about to! Check out this video below for an example of what can happen to a Bobcat pump.

A bent or misaligned rod can cause problems, too. If you notice that your seals are repeatedly failing, this could be the cause. And keep in mind that a seal that leaks also allows contamination to get inside.

Sadly, no pump will last forever because they suffer wear and tear from regular use. Bearings and seals will eventually need to be replaced, and if those replacements are put off then your pump may suffer even worse damage. If you suspect your hydraulic pump needs a tune up, then don’t hesitate to see after it -- it will extend the life of your pump and increase your machine’s overall productivity.

is your partner in providing new or remanufactured final drive hydraulic motors from a single mini-excavator to a fleet of heavy equipment. Call today so we can find the right final drive or hydraulic component for you, or check out our online store to.

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The hydraulic pumps on construction equipment are critical components of the machines and even though they are often designed to work under vigorous and intense conditions, no pump will last forever. Discovering a problematic pump can be complicated as the effects might seem to originate in other connected parts, and, if failures are gradual, the cascading effects of a pump failure can spread throughout a machine.

To help in your diagnosis — and with a small dash of preventive maintenance — we’ve put together this basic, short list of common pump problems and their causes.

Not every hydraulic pump on a machine is simple to inspect, but this Volvo main hydraulic pump on a EC220B-LC excavator sits behind a quick access door so an operator can check it often.

A failing hydraulic pump can be a long and subtle process, a sudden and catastrophic calamity, and all shades in-between, but often a perceptive operator will notice the signs of a pump failure in advance. It might take a few minutes of stopping and inspecting, but knowing what to watch for and taking the time to inspect your hydraulic pumps can often pay off in the long run and lead to fast and simple fixes, instead of prolonged and labor-intensive downtimes.

A hydraulic pump is often secured behind a door or guard or integrated deeply into the body of a machine, but taking the time to inspect the pump for the presence of oil (or oil and dirt clumping) can lead to the early discovery of problems. If the issue is simply a loose connection, a quick tightening can often stop a small issue from growing.

Since a hydraulic pump has both seals to prevent fluid from exiting the pump and also fluid from prematurely entering from one chamber to the next, failing seals can be both internal and external. Spotting an exterior leak is, of course, simpler, but being aware of where seals exist inside the pump can also help you diagnose a failing internal seal.

The most frequently noticed indication of a failing pump is often the start of a new sound coming from the hydraulic pump. An experienced operator will often immediately know and recognize a pump that is indicating issues through sounds, but for many it can be harder to pinpoint.

A problem with a pump can cause it to simply become louder in its operations, develop a whining sound, or even create a knocking sound. The sounds can indicate a number of problems, but often the cause is either cavitation or aeration in the pump.

Over long spans of work and under intense conditions, a hydraulic pump will often heat up, but excessive heating is often a sign of internal issues in the hydraulic pump. Checking a hydraulic pump for excess heat should always be done with safety in mind and with a secure machine and proper protective equipment. Periodically ensuring a hydraulic pump isn’t overheating allows an operator to discover if the pump is under undue strain and on a path to failure.

Overheating in a hydraulic pump can also cause fluid to thin, cause internal components to more rapidly degrade, and introduce dangerous working conditions to the machine. Overheating in a pump is both a sign of current trouble and a cause of other growing problems.

Unexpected and non-fluid movement of parts can be caused by issues with the hydraulic pump, but since the culprit can be a number of other parts in the system, diagnosing pump issues from these movements isn’t always simple. Still, if you do notice non-uniform movements in your machine, taking time to rule out the hydraulic pump is important.

A main hydraulic pump, like this one from a Komatsu PC400LC-6 excavator, comes with a working life and will need to be replaced or rebuilt at some time. This one is fresh from an H&R Recon and Rebuild shop and is headed to a customer.

Knowing some of the common causes of hydraulic pump failures is a proven way of proactively discovering developing issues and correcting them before they become disastrous to the pump and the machine.

The internals of a hydraulic pump are designed to work with fluid that meets exacting specifications. When hydraulic fluid is contaminated it can lead to issues developing in the pump, force the pump to work harder, and cause the pump to work erratically. One common culprit for contamination is water, and it can quickly lead to increased corrosion, changes in viscosity that lead to inefficiencies, and the inability to properly regulate heat in the pump.

Other debris, either introduced from outside or from the degradation of internal elements, can also lead to issues in the pump and signal failing seals or other parts.

A hydraulic pump is often containing a high level of pressure and as this pressure exerts force on seals in the pump, the seals can begin to leak or fail. Even minor leaks in seals can lead to loss of fluid and create issues in the system. Leaks can be both external and internal. For an internal leak, fluid will move from one part of the pump to another in unintended ways and force inefficiencies into the pump as it has to work harder to compensate.

While many hydraulic pumps are built to stand up to tough and continuous working conditions, every hydraulic pump is designed with an upper limit. Every time a hydraulic pump is subjected to overpressuring and overloading beyond what the manufacturer has specified, the pump is more prone to damage.

All hydraulic oil has a defined amount of air dissolved in it, but increases to this amount can lead to inefficiencies in the pump and force the pump to work harder or erratically. An increase in air can also happen inside the pump and create similar problems. Even though the pump and hydraulic system have mechanisms in place to regulate air in the system, if excess air is introduced the system should be returned to a balanced system before prolonged use of the pump.

The hydraulic system on a construction equipment machine is designed to work within defined parameters. Operating a machine with too little oil or too much oil for even the briefest amount of time can cause the pump to overwork, lead to increases in working temperatures, or create conditions for non-uniform movement. The exact type of oil used — matched to the machine and the working environment — can also impact how the hydraulic pump operates.

The operator’s guide of your machine will define the hydraulic oil change schedule and adhering to that schedule can extend the life of your hydraulic pump. When oil is changed, take time to examine the spent oil for signs of debris

Keeping a pump on a hard-working machine looking new every day is nearly impossible, but routinely peeling back dirt, grime, and oil can help catch issues early.

No one wants to take a machine out of work for cleaning, but keeping the machine clean and ensuring pumps are not covered in mud, dirt, or other debris can allow them to be inspected more easily and avoid contamination and overheating.

The hydraulic hoses connected to a hydraulic pump can wear out over time and ensuring they are well-maintained can help you avoid the introduction of debris and even catastrophic issues in the case of sudden failures.

If a hydraulic pump fails on your machine, taking time to ensure you properly diagnose why and how the failure occurred will help you avoid repeating the failure with your replacement pump. Even if the pump failed simply from prolonged use and age, taking time to confirm that can lead to insights about how to extend the life of the next pump.

A hydraulic pump on an excavator, wheel loader, dozer, or articulated truck can be an often ignored component of the machine — until it starts to act up and cause issues. If problems have brought a pump to the forefront of your mind, hopefully, this short guide has helped simplify your pump problem solving.

If you find yourself in need of a replacement hydraulic pump, our Parts Specialists are always here to help. As a supplier of new, used, and rebuilt hydraulic pumps and with our deep inventory of parts, our Parts Specialists can often find the perfect solution to get a customer back up and running quickly. Simplify your search and give them a call.

The look and design of a hydraulic pump is customized to fit the machine and the available space. This main hydraulic pump is freshly reconditioned from a Kobelco SK160LC-VI excavator.

Hydraulic pumps come in a wide range of shapes and sizes. This large Volvo main hydraulic pump requires assistive overhead cranes and forklifts to move around the warehouse.

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Hydraulic pumps are used in almost every type of production system, from plastic mold injection machines to the common conveyor belt. With proper maintenance, most hydraulic pumps will operate smoothly for years, but even with proper maintenance, the pressure inside these devices will eventually cause failures that need to be addressed as soon as possible. The way to avoid total system failure is by monitoring your pumps and looking for the following warning signs.

Liquids should remain in the tubes that were designed for them. If you notice any liquids anywhere else inside the pump, you have a problem. A line may have a break, or a seal may be loose. No matter what the case, an interior leak means your pump has gone bad.

Have you discovered liquid on the outside of your pump? This means either an interior leak has worsened or there could be a leak on the HPU that the pump is mounted to. This leakage results in reduced pressure in the system and immediate action is required to repair and salvage the pump. Leaking reduces the pressure, which increases the temperature of the system. This affects the viscosity of the oil, reducing the pressure in the system.

Increased fluid temperatures can be the result of the system’s inability to dissipate heat. In most systems, heat within the fluid dissipates through the fluid in the reservoir and a heat exchanger. Heat can cause the fluid to thin, which prevents proper lubrication and may cause pump leaks, reducing pump efficiency and system performance.

Hydraulic fluid that has a milky appearance is a clear indication of water contamination. One source is condensation buildup on the walls of the fluid reservoir as a result of temperature changes from warm days to cool nights. Water contamination can also corrode the pump and other critical components, which can shorten component life. Periodic fluid changes and draining of the water from the reservoir ensure water removal from the system.

If your seals continuously leak and fail, your pump may be operating with a bent or misaligned rod. Depending on the extent of the damage, a skilled machine shop may be able to repair your existing equipment, allowing you to get the most out of your equipment and minimizing costs.

System moving slow? If performance decreases, this could be a sign that your hydraulic pump is starting to go bad or your system is designed incorrectly. This lack of efficiency indicates a lack of flow.

You never want to let your system run if your pump is suffering from any of these problems listed above because it means your system is on the verge of experiencing pump failure. These symptoms are an indicator that something could be seriously wrong and could result in some expensive damage to your hydraulic system. The hydraulic experts at Pneumatic And Hydraulic Company can help in identifying the warning signs and replacing your pump before the damage becomes too costly.

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Hopefully, this article will help you to fix the problems with your skid steer loaders.Message usto learn more aboutWEITAI skid steer loadersand other construction machinery.

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A weak charge pump can make it seem like you"ve got problems with your final drive motors. That means you could replace your drive motors and not see any change in their performance. And to complicate things further, a weak charge pump that is ignored can lead to irreparable damage to your brake assembly. So what is a charge pump and how does it affect your final drives?

When the charge pump starts to go out, it won"t have enough pressure and force to release the brakes on your drive motors. In the beginning, the brake disc packwill be the first component to be damaged. If ignored, the final drive brake assembly can be seriously damaged leading to costly repairs. Eventually, the final drive motor itself can be affected and suffer damage.

Of course, these symptoms can also be related to other issues (e.g., aleaking brake seal, worn out bearings). However, before sending your final drive motor in for repairs, its a good idea to check out the condition of the charge pump.

If you don"t have a service manual for your machine, find a copy or borrow one. Go to the section that talks about pump/charge pump -- it may be under hydraulic charge pump pressure. This section will have the information on how to check the pressure. And it well tell you what the pressure readings should be if the charge pump is working correctly. Based on the results you get from testing, you can determine whether your problem is the charge pump or the final drive(s). Another quick test you can run is to check the pressure on both the brake lines. If they aren"t the same, then the problem likely the charge pump.

Charge pumps can affect the performance of your final drives, and can even cause damage if they don"t have the pressure and flow needed to release the brakes on your motors. If you have any questions about charge pumps and how to tell if they are the source of your problems, you can give us a call at 877-751-1854.

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Both the poppet and the seat of the relief valves were inspected. Further investigation revealed that the real problem was the relief valves. The relief valves (there are four in the pump) were popping where they shouldn’t be popping, but also jammed where they shouldn’t be. They became the main suspect in what was causing the loss of pressure in the hydrostatic pump.

The pump itself only required repairs, and did not need to be replaced. The hydrostatic pump required a new seal kit, a set of piston shoes, and a relief valve assembly.

The Sundstrand hydrostatic pump was not providing the required pressure because of damaged (and malfunctioning) relief values. The required repairs were made and the pump was sent back to its owner.

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When a hydraulic cylinder system works optimally, pressure, power, and overall productivity work concurrently without issue. Whereas when a system falters and show increased operational issues such as high temperatures or excessive vibration, troubleshooting the problem can often create additional headaches beyond the system failure itself.

Due to the inherent structure of a hydraulic system, troubleshooting is a fundamental step that can help pinpoint the problem and get your hydraulic system back on track. A thorough assessment might take longer than expected, but it can also help find the root of the hydraulic system failure to ensure all parts of the system have been properly evaluated and operationally sound.

Having multiple parts within a hydraulic system, finding the cause of the system failure often means assessing all parts that could potentially cause failure. Causes of hydraulic system failure include:

Slow Operation.Common causes of slow operating hydraulic systems include thickened fluids, air trapped in the hydraulic system, and worn out hydraulic components.

One of the easiest ways of troubleshooting an inefficient hydraulic system is to divide the system into 2 categories: volume or pressure. From there, you can identify the problem and fix the issue. Basic troubleshooting procedures can include:

Preventing a hydraulic system failure can mean keeping your mobile equipment up and running efficiently. While some system failures are unavoidable, one of the biggest ways to prevent a complete system failure is to implement a maintenance schedule. Taking the time for maintenance can provide peace of mind, in addition, to also potentially helping you detect issues before they spiral out of control.

Troubleshooting hydraulic system failures can be a time-consuming process. Just when you think you have found the root of the problem, it is entirely possible that another problem presents itself.  Decrease your downtime and contact the hydraulic system experts at Hydraulic Cylinders Inc. today.

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When a hydraulic cylinder system works optimally, pressure, power, and overall productivity work concurrently without issue. Whereas when a system falters and show increased operational issues such as high temperatures or excessive vibration, troubleshooting the problem can often create additional headaches beyond the system failure itself.

Due to the inherent structure of a hydraulic system, troubleshooting is a fundamental step that can help pinpoint the problem and get your hydraulic system back on track. A thorough assessment might take longer than expected, but it can also help find the root of the hydraulic system failure to ensure all parts of the system have been properly evaluated and operationally sound.

Having multiple parts within a hydraulic system, finding the cause of the system failure often means assessing all parts that could potentially cause failure. Causes of hydraulic system failure include:

Slow Operation.Common causes of slow operating hydraulic systems include thickened fluids, air trapped in the hydraulic system, and worn out hydraulic components.

One of the easiest ways of troubleshooting an inefficient hydraulic system is to divide the system into 2 categories: volume or pressure. From there, you can identify the problem and fix the issue. Basic troubleshooting procedures can include:

Preventing a hydraulic system failure can mean keeping your mobile equipment up and running efficiently. While some system failures are unavoidable, one of the biggest ways to prevent a complete system failure is to implement a maintenance schedule. Taking the time for maintenance can provide peace of mind, in addition, to also potentially helping you detect issues before they spiral out of control.

Troubleshooting hydraulic system failures can be a time-consuming process. Just when you think you have found the root of the problem, it is entirely possible that another problem presents itself.  Decrease your downtime and contact the hydraulic system experts at Hydraulic Cylinders Inc. today.

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When hydraulic cylinders don’t retract, all operations come to a halt. The situation is frustrating from a maintenance standpoint and from the downtime involved in troubleshooting the issue. Understanding common problems with retracting hydraulic cylinders can help save time and even prevent the problems altogether.

Single-acting hydraulic cylinders have an internal spring and use pump pressure to extend the rod. Retracting a single-acting hydraulic cylinder involves using either the spring or the weight of the load being carried. You usually see single-acting cylinders in applications requiring single-direction lifting.

Double-acting cylinders do not have an internal spring and rely on hydraulic pump power to extend and retract the rod. These cylinders are more common and used in applications where you need to lift and push loads while maintaining precise control over movement.  Keep in mind that it is normal for double-acting hydraulic cylinders to retract at a slower pace than they extend. This is due to differences in pressure created for retracting and extending functions.

Several things can prevent a hydraulic cylinder from retracting properly. Knowing what to look for and how to avoid future problems can save time diagnosing issues and help you demolish downtime.

Seals naturally wear over time but failing to replace them causes fluid leaks. Having insufficient hydraulic fluid in your system causes cylinders to become hydraulically locked and unable to fully retract or extend. Worn seals can also cause misalignment issues between the seal and cylinder rod, which may cause trouble when retracting hydraulic cylinders.

Sometimes hydraulic cylinders retract when they shouldn’t—an issue known as hydraulic cylinder drift.  This problem is caused by internal fluid leaks and is characterized by hydraulic cylinders slowly retracting while under load. While not as serious in light-duty applications, a retracting hydraulic cylinder under heavy loads can cause major equipment damage and endanger the lives of anyone nearby. Check your hydraulic fluid levels regularly and inspect your cylinders for evidence of leaking fluid.

Performing regular inspections and using the correct hydraulic cylinder for your industry and application is the best way to prevent issues with retracting hydraulic cylinders.

Hydraulic Cylinder, Inc. carries American-made, performance-built hydraulic cylinders for mobile and industrial equipment. Our product line includes welded rod, telescopic rod, and NFPA tie-rod cylinders in various sizes to meet your requirements. Shop our inventory online or give us a call to discuss our stock and custom hydraulic cylinder solutions.

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See our extensive hydraulic repair and reconditioning experience serving the markets listed below. Contact us. Learn more about Precision’s hydraulic pump, hydraulic motor, hydraulic valve, and hydraulic cylinder repair and service.

See our extensive hydraulic repair and reconditioning experience serving the markets listed below. Contact us. Learn more about Precision’s hydraulic pump, hydraulic motor, hydraulic valve, and hydraulic cylinder repair and service.

Road Construction: Asphalt Pavers, Vibe Rollers, Material Transfer Vehicles, Cold Planers, Sweepers, Concrete Concrete Mixers, Concrete Pumping Trucks, Concrete Placers/Spreaders, Batch Plants, Concrete Pavers, Loaders, Excavators, Skid Steer Loaders, Horizontal Directional Drills, Trenchers, Cranes, Soil Stabilizers

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The true depth of our knowledge lies within the diagnosis and repair of hydraulic pumps and other hydraulic products. Whether we have your unit in stock or not, the repair is always an option. In fact, it may be your best option for obsolete and hard to find hydraulic pumps, motors, valves, and servos.

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We are a distributor of genuine Bosch Rexroth products as replacement for pumps and motors used on heavy machinery and equipment manufactured by Caterpillar. Caterpillar is, of course, one of the leading names in mobile equipment and you see their equipment used all over the world for mining, forestry, drilling and transportation. If you need a replacement pump or motor for your Caterpillar-brand equipment, get in touch with our Customer Service team. We sell Bosch Rexroth pumps and motors for the Caterpillar machinery listed below. Search for your part number below, or Get a Quote today »

Our goal is to build relationships with our customers, so that they keep coming back to us. These relationships are built on trust and our reputation for only using name brand parts for repair work and meeting the OEM standards is well-known. We always use name brand Bosch Rexroth parts to repair your Caterpillar hydraulic units. Get a Quote today »

Our team has extensive experience with Bosch Rexroth hydraulic units. We also offer comprehensive engineering and design services for industrial and mobile applications. Our team of repair professionals provides diagnostic and hydrostatic services for all types of hydraulic equipment, including industrial equipment made by Caterpillar. In many cases, our team can do an on-site visit to diagnose your problem, fix it and get you back up and running. If your components cannot be repaired on site, then we can fix them at our facility. We can even help develop a maintenance plan for your Caterpillar equipment. Get a Quote today »

No matter where you are or what time zone you are in around the world, we can provide you with comprehensive Caterpillar hydraulic repair services. We can be your one-stop shop for all of your Caterpillar hydraulic needs. Give us a call today at 800-800-6971 to talk to our team. If you can’t call right now, then send us a message and we’ll be sure to get back to you as soon as possible.

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In many factories, the hydraulic pump is the heart of the operation — and hydraulic pump failure can cause huge problems. But why do hydraulic pumps break? In order to avoid hydraulic pump failure, it’s helpful to know what some hydraulic pump failure causes are.

Before getting into the reasons hydraulic pumps break, it’s important to know the signs that your hydraulic pump is broken or in danger of breaking. Some of these signs include:

Noisy System:All mechanical systems make some noise, and hydraulic systems are no exception. But if you are hearing very loud banging or knocking, there’s a good chance that your system is experiencing aeration or cavitation, which could lead to pump failure.

High Temperature:If your hydraulic system is exceeding the recommended temperature level of 82 degrees Celsius, this could be due to a buildup of debris in the filters preventing the system from dissipating heat. This is a problem you will want to address quickly, as high heat can damage your system.

Slow System:If your system isn’t operating as quickly as it’s supposed to, you definitely have a problem. A slow hydraulic system means a loss of flow, which typically means internal leakage.

The major cause of hydraulic pump failure is called fluid contamination. This is an invasion of the hydraulic fluid by foreign materials. Hydraulic pumps and valves are only designed to carry hydraulic fluid, and anything else in them will damage the system, especially since this foreign debris may remain in the system and continue to damage the valves and pipes.

Aeration:Air in the hydraulic fluid can create problems when put under pressure by the pump. When this happens, they can implode and dislodge debris, causing contamination and raising the temperature inside the pump.

Cavitation:Cavitation is a situation where the hydraulic fluid doesn’t fully take up the space in the pump because of unusually high fluid viscosity, an intake line that is too long or an overfast pump, among other reasons. It can lead to problems similar as aeration.

Excessive Heat:An overheated hydraulic system can cause some massive problems for your hydraulic system. It can damage seals, degrade the hydraulic fluid and otherwise compromise the system.

Overpressurization:Hydraulic pump systems are very sensitive and should only operate under specific conditions, including precise pressure levels. Exceeding recommended pressure levels puts undue pressure and wear on the system and can cause it to fail more quickly.

The best way to avoid hydraulic system failure is to keep your system clean. Remember: fluid contamination is the main precursor to hydraulic system failure, so keeping those contaminants out of your system is your best chance to maintain healthy hydraulics. This means high-quality filters in your system that you inspect regularly and change when necessary.

The other major way to keep your hydraulic system up and running is by keeping the components cool. An overheated system can result in real problems, and you may not notice the effects until it is too late. You’ll also want to make sure your system is operating under the right pressure specifications.

A well-maintained hydraulic system can last a long time and be extremely efficient. Although there are many problems that can occur with a hydraulic system, most can be avoided with proper care, and the benefits of having a good hydraulic system for your business can be great — well worth taking good care of your system.

Part of that care is taking quick action when necessary. If you suspect that there is a problem with one or more components of your hydraulic system, the best thing to do is have a professional inspect it and repair any faulty parts that are failing or at risk of failing. The longer you let a hydraulic system problem go without addressing it, the worse the failure will be when it does happen.

Global Electronic Services has factory-trained, certified technicians who are well-versed in hydraulic systems and hydraulic problems. If you’re delaying repairing your hydraulics because you’re afraid of taking them offline, you should know that Global Electronic Services can complete your repair in a matter of days. For more information, call 877-249-1701 or contact Global Electronic Services online.

Be sure to visit us online at gesrepair.com or call us at 1-877-249-1701 to learn more about our services. We’re proud to offer Surplus, Complete Repair and Maintenance on all types of Industrial Electronics, Servo Motors, AC and DC Motors, Hydraulics and Pneumatics. Please subscribe to our YouTube page and Like Us on Facebook! Thank you!

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CJ Plant are one of the UK’s leading hydraulic repair specialists who specialise in the repair of all major brands of machinery/ OEMs. We are a well-established company with years of experience in all aspects of hydraulic repairs to hydraulic pumps, motors, final drives, swing reduction units, control valve blocks etc. We believe we offer one of the most complete and cost-effective services in the country to deal with all your maintenance and repair needs in one place and place us far ahead of our competitors. Savings of up to 50% compared to main dealer prices are not uncommon for our customers. We deal daily with customers not only from the UK but from all over the world and offer a quick and professional solution which can be broken down into nine key points:

To ensure our customers receive the optimum performance from their equipment on its return we have invested in custom built hydraulic testing equipment unique to our facility to be certain we deliver the best results. This means our hydraulic testing can be performed at various speeds and pressures to simulate the actual working conditions the part will be subjected to when working in line with OEM standards. All fluids used are filtered to ensure purity and prevent any contamination at the last stage.

At CJ Plant we pride ourselves not just on the speed and quality of our work but on the standard of service we provide to all customers, regardless of location, size of order or complexity of their request. Our friendly, professional staff make it their business to help satisfy all our customers’ needs and requirements and would be happy to answer any enquiries. Please call and speak to one of our Hydraulic Repair Services today.

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The auxiliary hydraulic capabilities of a skid steer are one of the features that make it extremely versatile, and having a good understanding of the output you will need is important when you spec a machine.

owner use only a bucket. The auxiliary hydraulic capabilities of a skid steer are one of the features that make it extremely versatile, and having a good understanding of the output you will need is important when you spec a machine. How much power is too much power, and how much power do your attachments need? In this article we’ll look at common hydraulic systems and how each matches up to attachment demand. Just working with a bucket and pallet forks? No problem. Running snow throwers and wood chippers? You’re going to need a higher flow.

A skid steer’s auxiliary hydraulic system provides the hydraulic flow that drives the machine’s attachments. The key to remember is that not all attachments have the same hydraulic flow requirement.

The most common system is the standard-flow auxiliary hydraulics package. Although flow rates differ by manufacturer and skid steer model, the flow rate of a standard-flow system ranges from 17 to 24 gallons per minute (gpm). Standard-flow auxiliary hydraulics are included on all skid steers from the factory and operate on the same pressure that the machine’s main hydraulics operate on, which is approximately 3,000 to 3,500 pounds per square inch (psi). A standard-flow system powers many of the most common hydraulic attachments on the market, such as 4-in-1 buckets, hydraulic hammers, augers, trenchers and grapples.

A high-flow auxiliary hydraulics system is a second option that further increases a skid steer’s versatility and productivity. As with standard-flow, it operates on the same pressures (approximately 3,000/3,500 psi) the main hydraulic circuits operate on. The flow rate, however, ranges from 30 to 38 gpm. A high-flow system can be factory-installed as an option or installed later in the field. It powers production-type attachments that require a high flow rate to perform as specified. Examples include cold planers, many snow blowers, rock saws, small mulchers, and chipper/shredders.

When even more hydraulic power is required, an enhanced high-flow auxiliary hydraulics package is available. This high-performance option has flow rates that are similar to a skid steer with a high-flow package, yet it operates up to 4,000 psi. Examples of attachments that require an enhanced high-flow system include larger cold planers, larger mulchers used to clear brush and small trees, and a large rock saws you might find in an aggregates operation.

Also available is a secondary auxiliary hydraulics system for applications that require multiple hydraulic movements simultaneously. This would include the side shift function on a cold planer or stump grinder, snow blower for direction change on the chute, or a tree spade with down riggers.

A common misconception is that a standard-flow system can adequately run high-flow attachments. Powering high-flow attachments with a standard-flow skid steer will lead to inefficient operation. In addition to realizing lower-than-expected results, it can also damage the attachment or skid steer. There’s no need to invest extra money in a high- or enhanced-flow system if your attachments only call for standard hydraulic flow.

When it comes to an enhanced high-flow auxiliary hydraulics package, it’s important to know the system is designed for extreme situations where the operators are truly pushing the limits. The enhanced high-flow package is only available on larger skid steers with the horsepower available to ensure proper operation of the attachment.

The maintenance involved in auxiliary hydraulic systems is essentially universal. As with any hydraulically operated machine, it’s important to maintain the proper hydraulic fluid level as specified in the owner’s manual. To ensure safety, check the level with the loader arms in the down position. This also ensures an accurate reading. Loader arms in the up position will draw fluid from the hydraulic fluid tank, giving the false impression that fluid is low.

Always follow the recommendations in the owner’s manual regarding hydraulic oil and filter change intervals. Equally critical is the need to minimize the potential for contamination, whether it’s dirt, particulates or water. Check connection points to ensure they’re tight, and keep them clean. Contaminated hydraulic fluid decreases the life of the hydraulic pump and system, and can lead to more serious issues if not regularly changed out.

Viscosity is the single most important factor when selecting a hydraulic fluid to use in the skid steer. Follow the manufacturer’s recommendations to select the viscosity grade to meet the machine’s operating requirements and climate the machine will be operating in. Doing otherwise will result in poor performance or unnecessary damage. The wrong oil in a cold climate could lead to sluggish performance and damage to hydraulic components, while the wrong oil in a warmer climate may not provide the needed viscosity and may actually cause heat buildup in the unit.

One of the most common mistakes that contractors make is buying a skid steer without enough hydraulic power. Having high flow and not needing it is better than not having high flow and needing it. If you think you may be expanding your business – such as a landscaper who may be considering a move into snow removal – consider the high-flow system.

With literally hundreds of attachments available and more introduced each year, it’s a given that the versatility of skid steers will only continue to grow. By outfitting them with the right auxiliary hydraulic systems, skid steer owners are able to capitalize on all the machines have to offer, achieve a favorable return on investment, and ultimately, add to the bottom line of their business in the process.