If you are in an industry that relies on hydraulic systems to transfer power or fluids, you know how important hydraulic hose assemblies are. From construction and agriculture to oil and gas, manufacturing, and transportation, hydraulic hose assemblies are an integral part of many industries.

For example, in the construction industry, hydraulic hose assemblies power the hydraulic cylinders that control the movement of heavy machinery like excavators and bulldozers. Similarly, in agriculture, they are used to power the hydraulic cylinders that control the movement of equipment like tractors and combines. In the oil and gas industry, hydraulic hose assemblies are crucial for drilling, fracking, and pipeline maintenance. In manufacturing facilities, they power hydraulic presses, molding machines, and other machinery. And, they even power hydraulic brakes and steering systems in automobiles and aircraft.

In order to keep your business running smoothly, it’s important to choose the right hydraulic repair center for hose assembly selection and replacement. That’s why we’ve gathered three expert tips to help you make an informed decision. With these tips, you can ensure that you’re getting the right hydraulic hose assembly for your needs and that it will be replaced properly when the time comes.

Here are our 3 Expert Tips for Hydraulic Hose Assembly Selection and Replacement:

Choose the Right Hose for the Job

Choose the Right Hose for the Job

It's essential to select the right hose for the specific application. Factors to consider include the type of fluid being conveyed, the temperature and pressure requirements, and the environment in which the hose will be used. Choosing the wrong hose can result in damage, leaks, and potential safety hazards.

Inspect and Replace Regularly

Inspect and Replace Regularly

Hydraulic hoses and hydraulic cylinder rebuild should be inspected regularly for signs of wear, damage, or leaks. A damaged or worn hose or cylinder can lead to a failure, resulting in system downtime and potential safety hazards. Experts recommend replacing hydraulic hoses every 2-3 years or sooner, depending on usage and environmental factors. Similarly, a hydraulic cylinder rebuild should be performed when there is excessive wear or damage to the cylinder. Regular maintenance and inspection of both hydraulic hoses and cylinders can help ensure the safe and efficient operation of hydraulic systems.

Proper Installation and Maintenance

Proper Installation and Maintenance

Proper installation and maintenance of hydraulic hoses are critical for optimal performance and safety. It's important to follow manufacturer guidelines for installation and tightening torque specifications. Additionally, it's important to keep hoses clean and free of debris that could damage them or cause clogs.

When it comes to hydraulic needs, it’s essential to work with a company that has the expertise and knowledge to handle the job. We’re a trusted leader in the hydraulic industry, with decades of experience in basic hydraulic troubleshooting and repair. From selecting the right hose for the job to regular maintenance and replacement, we can handle all of your hydraulic needs with professionalism and expertise. With our attention to detail, commitment to safety, and focus on customer satisfaction, you can trust us to provide the highest quality hydraulic solutions for your business. 

Need help finding the right hydraulic parts?

At Yarbrough Industries, we have a large selection of hydraulic products and offer diagnostic, testing, repair, and replacement services to help get your operations back up and running in no time.

Engineers are problem solvers. They find a way to create something that meets a need through ingenuity and technical expertise. However, a new problem arises when trying to figure out how to bring the concept into the physical world. How to find the resources to make the custom components?

1. Figure Out Where

Many engineers have searched for ‘custom metal fabrication near me’ and see numerous results. But parsing through those results can be quite cumbersome. Parts might come from contract plants, machine shops, in-house services, or even brokers looking to connect companies. Local machine shops provide the most options for genuinely custom machined parts. Unlike contract plants that often use assembly lines or in-house shops with less equipment, a machine shop will host a wide range of tools and technology to meet any customization need, like a custom metal laser cutting machine. Their ability to use a range of machines and methods means buyers aren’t limited to just small custom machined parts but can add functionality like hydraulics without using a second location.

2. Ask About Timing

Machine shops know that time is essential and often spread between many projects at once. It’s important to be confident that the part is right the first time and meets the exact specifications required. So while timing can vary by project, some vendors will consult with clients to establish a timeline that won’t make false promises and helps efficiently get work done right. Fast turnaround time is essential, as is high-quality work. An up-front and in-depth discussion between client and supplier helps ensure both are provided.

3. Check The Work

Vetting vendors can be a time-consuming process, and the last thing busy managers need is to do this process repeatedly, trying to find quality work. Touring facilities and consulting with fabricators are significant steps in ensuring trust in the process. Through these discussions, companies can rule out any potential issues and make sure every design step is understood and in good hands. Vendor reputation can also be a valuable indicator of quality.

Custom machined part orders can have much more detail than the drafted design. In addition to size and shape, there are product qualities like material and grade, product finish and construction style and type. Translating a sketch or even a 3D rendering into a completed product can require considerations that are not always immediately apparent. A vendor with knowledgeable technicians will watch out for these factors, and one with a wide range of equipment protects against assembly line inaccuracy.

No matter what parts a company is looking for, the right vendor is critical to ensure that the full design is done well. The right vendor will work with clients to understand their needs and source a project appropriately, whether that is obtaining parts from a manufacturer or creating them through custom fabrication.

Need help finding the right hydraulic parts?

At Yarbrough Industries, we have a large selection of hydraulic products and offer diagnostic, testing, repair, and replacement services to help get your operations back up and running in no time.

It is no surprise that with the global shortages that continue into 2022, finding quality hydraulics with optimal lead times can be challenging. When sourcing hydraulic repair shops or simply ordering parts, buyers want to find vendors that offer a one-stop shop for all their needs. We have listed three key ways to vet potential vendors to ensure that they meet every need.

1. Research the Vendors

Research vendors in the area to find vendors with the bulk of products needed to cut down on the number of orders placed and therefore the number of lead times and orders to track.

Also, look into a vendor’s warranties and policies. If you can find a hydraulic machine shop that sells high-quality hydraulics with extended warranties that can service those parts if and when needed, you can greatly cut down on spending while not sacrificing quality.

2. Know the Difference Between an OEM and a Parts Distributor

An Original Equipment Manufacturer (OEM) builds an entire machine. They are more than likely only fixing and selling those parts related to the hydraulic systems of the machines they manufacture.

A Parts Distributor is an authorized reseller of pieces and parts for many different machines. Distributors sell the components – pumps, motors, valves, hoses, seals – for all makes rather than just one specialty brand or product.

Sometimes hydraulic parts are purchased from these companies, but if you lack the ability to perform the labor, finding a Parts Distributor with a hydraulic machine shop can be beneficial since they are full service and specialize in hydraulics.

3. What is Considered a Better than Average Lead Time?

The million-dollar question as global shortages continue is how long is the lead time? Even when finding quality hydraulics, ensuring they will be delivered on time is equally important.

One to two weeks is an impressive turnaround time for products in hydraulic sales to arrive. To minimize tight timelines and wrong lead times, ordering as early as possible is always the best bet. Because of global shortages, some lead times are up to 42 weeks.

Ask potential vendors prior to purchasing what their lead time is for any given project. Make sure that you understand fully how long a part will take to arrive and therefore how any delays could impact your project. It may be just the thing needed to help choose between two potential vendors as well.

When purchasing hydraulic parts, buyers need a company that makes the process as seamless as possible. From ordering to servicing, that is what Yarbrough Industries specializes in. Yarbrough’s expertise allows them to provide quality hydraulics with an experienced service team so that a one-stop-shop can be obtainable.

Need help finding the right hydraulic parts?

At Yarbrough Industries, we have a large selection of hydraulic products and offer diagnostic, testing, repair, and replacement services to help get your operations back up and running in no time.

When machines go down during a project, time is of the essence. Halting production means extending project timelines resulting in opportunity cost of missed time as well as the potentially high costs of repairs. And despite hand-picked teams of heavy machine operators, stonemasons, electricians, and other skilled tradesmen, many construction managers simply do not have hydraulics repair technicians on their roster. Getting hydraulics up and running quickly is essential to bringing projects in on time and under budget.

Hydraulic Equipment

This is not as easy as it may first seem. The operating conditions for hydraulic equipment can vary widely, even within the same location. Machines can differ on many components, including fluids, pressure, and temperature. And the construction of these devices is complex and multi-layered, with over 16 different hose types and numerous fittings from multiple manufacturers.

With so many variables to account for the problems that can lead to breakdowns are numerous. Some of the most common issues include hoses blowing off, cracking, bursting, or leaking. Simple everyday use can result in bends or kinks that damage the hose beyond repair, and even a regular maintenance schedule won’t eliminate the possibility of breakdowns. Normal wear and tear also gradually lowers the cylinder’s efficiency, so repair is beneficial to the machine even without a breakdown. Issues with the hydraulic cylinder can also damage the surrounding system components. In these cases, skilled and vetted technicians step in.

From Emergency Repair to Quality Repair

Many services offer emergency repair, but they are often ill-equipped to deal with hydraulic repair. These services often fail to fix the issue on the first visit and instead need to return with more equipment. When you’re operating on a project schedule, this back and forth simply won’t cut it. On-site services solve this problem by bringing everything needed for even advanced repair right to the breakdown location. They carry an expanded collection of hoses and fittings to accommodate any repair type that might be needed.

Not every hydraulics system is built the same, and some suppliers do not share the same standard for hoses or fittings sizes. In these cases custom fabrication can be done on the spot, resulting in the right size and shape for any job need. Using top-of-the-line Aeroquip custom materials, these hoses can be made quickly while you wait, eliminating the need to outsource or wait at a store. While common practice is to replace a hose with a duplicate, technicians can determine the cause of failure while performing repairs. And if standard use led to a hose breaking down earlier than anticipated, it is possible to replace it with a superior option. Quality tests are always run to ensure that all repairs are up to the highest standard.

The Yarbrough Difference

On-site service is the difference between getting hydraulics repair done and getting hydraulics repair done fast. The capabilities and selection of Yarbrough Industries mobile services ensure that technicians arrive on location with whatever tools and parts are needed and can get right to work. Every nuance of selection, repair, and even fabrication is taken care of. With expert technicians ready to work right away, machine breakdowns no longer have to grind production to a halt.

Need parts or services delivered on your site?

At Yarbrough Industries, we have a large selection of service options or replacement parts to help get your operations back up and running in no time.

When construction equipment breaks, time and money rely on quick response. Project managers scramble for answers of who, how, and where to fix heavy equipment, but revenue ultimately depends on when construction equipment repair service can take action to find parts and labor to get a crew building again. 

Yarbrough Industries utilizes a team of experts to operate safe, efficient, and fast solutions for heavy construction equipment repair. The mobile repair service can arrive within hours on-site to fields and factories where equipment may lockdown. With two service trucks packed with parts, cranes, generators, testing equipment, and even welding gear,  the Yarbrough team is prepared to get most machines moving again. 

Machines

The mobile repair service at Yarbrough Industries is designed to service manufacturing and construction equipment on site. The repair team provides routine maintenance to fleets of equipment, service check-ups to manufacturing machines, and full on-site heavy construction equipment repairs. The team specializes in hydraulics with over 50 years of experience in diagnosing, repairing, and rebuilding key components of construction equipment that utilize hydraulic power. 

Parts

The mobile-service trucks at Yarbrough are prepared for quick fixes and loaded with common parts for construction and farm equipment. The truck has a crane prepared to lift a machine or remove heavy top components to access the inner mechanisms that need attention. The truck also carries a generator for power, and testing equipment to measure the power output of specific components. 

For hydraulic repairs, testing equipment is crucial for diagnosing problems and replacing specific parts that may be the root of the issue. The repair team keeps common part replacements for valves and hoses and also carries hydraulic oil. The team also can perform small welding jobs as needed. The mobile truck can have construction equipment ready to work within hours of arrival. 

If less common replacement parts are needed, the mobile service team can utilize the extensive inventory at Yarbrough Industries. The main service center is stocked with thousands of parts to replace components on demand. When a piece is not in stock, the Yarbrough team has an extensive network of partners and wholesalers that can help locate and ship rare and sometimes discontinued pieces to help keep work crews in motion. 

Parts purchased from Yarbrough Industries or installed by mobile repair teams are guaranteed for one year of service. 

Service

Yarbrough Industry is a small shop that brings midwest hospitality to every repair site. The repair team has over 50 years of experience with hydraulic equipment and additional years of service with small components and large machines. The mobile repair team provides a range of services from regular maintenance to large fleets of heavy construction equipment to on-demand urgent repairs to farm equipment. The repair team proudly serves the region to keep their neighbors building great things for families and communities. 

From bid to completion, the Yarbrough service team brings professional experts to projects that keep our clients building bigger and better communities. 

Need parts or services delivered on your site?

At Yarbrough Industries, we have a large selection of service options or replacement parts to help get your operations back up and running in no time.

Few problems can derail project timelines as quickly as equipment breakdowns. Heavy construction equipment repair can be a challenge, especially when a hand-picked work crew of the best engineers, architects, and craftsmen are on schedule to build. Mobile construction equipment repair can supplement skills and fill a gap in crew experience to ensure projects continue on time and under budget.

Many construction managers turn to original equipment manufacturers (OEMs) when breakdowns occur, but a local repair service can offer fast and affordable repairs without sacrificing quality in parts or experience in service.

Mobile construction equipment repair services offer four key benefits to improve operations.

Experience

Technician knowledge is essential not only for on-site safety but for proper installations that endure. Mobile services employ skilled and highly trained repair staff who prioritize site safety and project timelines. Local repair service technicians have years of on-site experience working with agricultural and heavy equipment varieties with in-depth knowledge of hydraulics.

Mobile construction equipment repair from a local service center makes good sense. Local partners have a network of retailers to find and ship the right parts faster and consult with experts to troubleshoot common problems or solve complex issues.

Convenience

On-site repair service means the repair team arrives prepared to get heavy equipment moving. When large construction equipment breaks down, moving a machine to an OEM is impossible. Often teams work to break down large machines to extract a part that is perceived to have failed, but guessing which part needs replacing can be a frustrating game.

Specifically, when working with hydraulics, a range of problems can hide the real issue. Most would guess a breakdown is related to the motor because the motor stops moving, but the actual fix can be different. A hydraulic motor will stop working when the pump, hose, or valve fails to perform efficiently. A mobile hydraulic repair service provider can quickly assess issues and holistically repair hydraulics with years of service to the industry.

Independent shops offer a large inventory of factory-guaranteed parts. On-site repair teams keep standard valves and hoses in their repair vehicles. The repair vehicles also have a crane to help maneuver equipment or lift a hood or cover to better access internal components of heavy equipment. The team also brings hydraulic oil and testing equipment to measure the performance of hydraulic components. The repair team can even do minor welding work on-site. In short, a mobile equipment repair service arrives in any field or factory site prepared to get heavy equipment and work crews moving again.

Saving Time

The ultimate convenience to work crews is time saved. Crews can lose time when working to diagnose and troubleshoot complicated repairs on their own. Technicians can arrive on-site to fix breakdowns within hours and eliminate extended wait times and part replacement challenges.

Independent shops maintain a warehouse of quality parts, so there is no need to wait for shipping from the manufacturer. Instead, independent wholesalers can rapidly dispatch to a location with all the necessary tools, drastically cutting wait times and getting construction crews up and running again.

Lower Costs

An OEM often charges maintenance fees, as well as opportunity costs for longer repair times. The longer a machine is down, the longer a production crew waits to complete projects that bring in revenue. On-site technicians can get the job done for a lower price, saving added expenses or budget headaches down the line.

Bonus! Good Service

Dealing with OEMs can be impersonal. With on-site repair services, each project gets personalized attention. Independent services providers are neighbors and community members; they thrive on word of mouth and strive to satisfy every customer. Local equipment repair providers produce better service because they work one-on-one with friends, family, and neighbors to repair heavy construction equipment and get a community-building again.

So Why Choose Mobile Services?

While it’s easy to default to OEMs, other alternatives can better match a construction manager’s needs. Mobile services offer quick and reliable solutions by skilled technicians with a personal touch. And they do so for less money and significantly less time to ensure projects come in on time and under budget for optimal performance in operations. A mechanical emergency may shut down production, but work crews no longer have to worry about production shutting down for long with mobile construction repair services.

Need parts or services delivered on your site?

At Yarbrough Industries, we have a large selection of service options or replacement parts to help get your operations back up and running in no time.

Where Can I Find a Qualified Vendor if an Emergency Arises?

In the event of a mechanical emergency, promptly finding a qualified vendor to handle the repair is essential to getting production schedules back on track in a reasonable amount of time. While original equipment manufacturers (OEM) may be able to get the part needed, independent facilities can offer quality solutions in a fraction of the time and frequently at a reduced rate. 

There are many reliable industrial equipment repair services that specialize in customer and emergency services that can provide excellent assistance and warranties on their parts. When looking for a qualified vendor in an emergency, keep an eye out for highly-rated businesses that offer warrantied parts and services in your area. Many dependable companies offer nationwide services and can accommodate emergency repair no matter the location. Other valuable resources are local hydraulic repair shops and teams offering construction equipment repair.

How Can I Quickly get Heavy Equipment Fixed in a Pinch?

Defective heavy machinery can not only slow down production schedules but halt it altogether. When equipment breaks down in the middle of a job, a quick response is vital to move projects forward.

Without a backup machine, time is of the essence, and a local or mobile service may be a time-saving option to handle equipment repairs. Not only will an independent repair shop avoid the maintenance fees associated with an OEM, but will target breakdown causes faster with repairs done on-site by locally employed technicians. 

Independent service shops can offer faster labor, lower prices, and increased access to reliable replacement parts. If using the OEM, specialty parts may need to be tracked down and will likely be hard to find within a short timeframe. Independent shops can speed up the repair process by offering a warehouse of options in quality parts and components in stock instead of shipping pieces from an equipment manufacturer. With a customized fit to each machine, a locally sourced replacement part efficiently gets equipment back up and operating!

 

What Type of Experience Does my Vendor Have Working on Construction Equipment?

Working with heavy machinery requires a high level of expertise that skilled workers are trained to handle. Ensuring that a vendor has the required knowledge to provide equipment repairs is essential for both worksite safety and mechanical longevity.

Many industrial equipment repair businesses have impressive reputations that champion safety, efficiency, and most importantly propriety while repairing heavy machinery. When deciding on a local industrial equipment repair service, be sure to consider the reviews and reputation of the provider to avoid any unnecessary headaches. 

Is it Worth Using a 3rd-Party Vendor Over the OEM?

So, who is more reliable when immediate assistance is needed: a 3rd party vendor, or the original equipment manufacturer? 

While OEM repair options may seem like a reliable option for sudden breakdowns, taking this route may significantly increase the time equipment spends in the shop. When emergencies arise, and a quick repair is needed in a short time frame, an independent facility will likely have the skilled labor and the quality parts to offer the best solution to put heavy equipment back to work. 

Need help finding the right hydraulic parts?

At Yarbrough Industries, we have a large selection of hydraulic products and offer diagnostic, testing, repair, and replacement services to help get your operations back up and running in no time.

If you use and maintain hydraulic equipment on a regular basis, you’ve more than likely found yourself running into a repair job that could have been easily fixed if you or your technicians had the right parts on hand. 

Instead, you’ve probably found yourself scrambling to find a vendor with the right part(s) in stock, rush ordering, and holding onto hope they’re able to get it to you sooner than later. Sound familiar?

While storing an excess of hydraulic spare parts does not make a whole lot of sense, having the right ones to keep your equipment up and running plays a big role in having an effective maintenance plan. But where do you start?

Here is a closer look at how to effectively manage your part inventory and what hydraulic parts you may want to keep around in case a machine goes down. 

Analyze & Identify Hydraulic Parts

One of the toughest challenges of managing an effective part inventory is having the right type of parts available when you’re troubleshooting your system and have to stop production.

Knowing your machinery and which parts are critical to its operations is the first step in creating an effective spare part inventory. This can include having everything from extra cylinders, pumps, and motors to extra valves, hoses, seals, and even o-rings. 

So how do you figure out which parts you should keep handy? 

To get a good idea, you should begin by analyzing past equipment and part data. Everything from past maintenance records, inventory adjustments, purchase orders, and downtime logs will provide invaluable insight into what spare parts will be the most beneficial and economical to have available at a moment’s notice. In addition, it doesn’t hurt to talk to your maintenance technicians and purchasing agents to see if they have any further insight or recommendations based on their experience with the equipment. 

Having this information will help you better forecast and identify exactly what type of parts to have on hand in case a machine’s hydraulic system fails

Here are a few spare hydraulic parts and components we recommend keeping in stock: 

  • Pumps
  • Hoses
  • Valves
  • Filters
  • Cylinders
  • Belts
  • Gaskets
  • Actuators
  • Fan Motors
  • Seals and O-rings

Remember, it is often more cost-effective to repair old hydraulic parts and keep them as spares than it is buying new ones. If you have old broken parts lying around, working with an experienced hydraulic repair technician can help you salvage them so they’re good as new and ready to use. 

Not sure whether to repair, rebuild or buy new hydraulic equipment? Check out this article we wrote. 

Maintain Your Hydraulic Part Inventory

If you have a solid maintenance plan in place and are taking care of your hydraulic equipment on a regular basis, ideally spare parts should not have to be used too often. However, as the saying goes – it’s better to be over-prepared than under. 

That said, you don’t want a cluttered inventory full of unnecessary spares taking up space. 

To manage your part inventory and help determine the most economical quantity of parts to order there is a formula known as the Economic Order Quantity Formula (EOQ).

The EOQ Formula can help you prevent both loss and waste in your inventory by calculating an annual order quantity that minimizes costs and maximizes your order efficiency. You can find out more about the EOQ Formula here

EOQ Formula

Here is a simplified example:

Annual Demand: 200 units
Order cost: $5.00
Holding Cost: $1.25
Calculated Order Amount = 40 units

While having a formula is helpful, there is no equation that will help you maintain a perfect inventory at all times. There are too many variables and unforeseen circumstances that come with maintenance and repairs. That’s where having a reliable hydraulics vendor comes into play. 

A reliable vendor will effectively help you manage your part inventory by understanding your equipment needs, help you save time and money, and be able to get you out of a pinch when circumstances call for it. 

When it comes to hydraulics, a reliable vendor should have hydraulic repair experience and a diverse inventory of products available. They should be able to supply you with a wide variety of high-pressure hydraulic products, including pumps, cylinders, valves, clamping components, and also any related hydraulic products, including pneumatic and lubrication products.

Overall, maintaining the proper inventory of spare hydraulic parts can be the difference between extensive unscheduled downtime or same-day repairs. Analyzing and identifying these parts, keeping up on routine maintenance, managing your inventory, and having a reliable go-to hydraulic shop will all help you speed up repair times, minimize downtime, and eliminate excessive costs when equipment goes down. 

Need help finding the right hydraulic parts?

At Yarbrough Industries, we have a large selection of hydraulic products and offer diagnostic, testing, repair, and replacement services to help get your operations back up and running in no time.

Whether you work for a large manufacturing company or a smaller facility, if you are responsible for overseeing machine and equipment maintenance, you know how important it is to keep costs down and reduce unscheduled downtime.

Luckily there are a few ways you can minimize equipment service and control repair costs. Here is a closer look at six maintenance cost-reduction strategies you can use.

Monitor Expenses

Monitor Machine Maintenance Expenses

Keeping track of how much you’ve spent on labor, parts, and supplies for specific machines over time will help you determine machines and equipment that cost the most money to operate and maintain. If you find there are machines in need of frequent repair, then you have the information available to make an informed decision when it comes to repairing or replacing.

 If you’re at a loss, a skilled engineer or maintenance technician can help troubleshoot the underlying problem and take corrective action.

 

Create Maintenance Schedules

Create Preventative Maintenance Schedules

While not all equipment breakdowns or repairs are predictable, having a routine preventative maintenance schedule can help keep them minimized by keeping machines operating at their best.

Routine maintenance should involve inspecting various equipment components and ensuring machines are up to the manufacturer’s specifications.You can use the owner’s manual to help create preventative maintenance schedules and stay on top of inspections and routine service.

When it comes to creating preventative maintenance schedules, consider basing them on operating hours rather than on a calendar. Usage times will vary by machine, meaning you could be over or under-servicing your equipment based on actual hours. You can determine if you need to decrease or increase service intervals by periodically reviewing the results.

 

Spend Your Budget Wisely

Spend Maintenance Budget Wisely

Between repairing or replacing a piece of equipment? A good rule of thumb is to weigh repair costs against your machine’s residual value (what you’d get if you sold it today). If repairs cost more than the machine is worth, apply your money toward a new machine with better technology that will last longer. 

When it comes time to replace a piece of equipment, keep in mind investing in a lower-priced machine may end up costing you more in the long run. While higher-quality machines may cost more upfront, they typically require less maintenance work overall if maintained.

 

Optimize Equipment and Parts

Optimize Spare Machine Parts

One of the best ways to keep machine maintenance costs down is to develop a strategy to buy and organize spare parts. If you don’t have spare parts such as hydraulic pumps or hoses in stock, then you run the risk of increasing your average repair time.

Aside from keeping an adequate supply of spare parts handy, it helps to ensure there is a degree of similarity between your machines so you can use them interchangeably. Having the same parts fit many machines is cost-efficient and makes it easier to receive technical assistance from either the manufacturer or a professional service technician.

When it comes to purchasing parts, keep in mind ordering parts in bulk will allow you to negotiate better prices.

 

Train Your Machine Operators

Train Maintenance Staff

In addition to training maintenance supervisors and mechanics on equipment, educating your operators can help keep costs down.

Since operators work directly with the equipment, they are in an ideal position to help identify potential problems and perform more common maintenance tasks such as inspection and lubrication. By training non-maintenance staff, you will have fewer periods of unscheduled downtime and avoid expensive and time-consuming repairs.

 

Contact Qualified Service Technicians

Call Qualified Service Technicians

While having a reliable in-house maintenance staff is ideal, the skills to maintain or repair certain pieces of equipment properly will vary. If a machine goes down, trial and error can be an expensive way to learn how to repair your equipment.

If maintenance or repair seems questionable, make sure to contact qualified technicians trained with the right skills and practices needed to minimize unplanned downtime and repair costs. This will save a lot of headaches and unnecessary costs down the road. 

Need assistance with your machine maintenance or equipment repair?

Our expert technicians provide mobile on-site repair to help get your operations back up and running in no time. 

The industrial world is continuing to evolve. This means adding more sophisticated ways of reducing unscheduled downtime. However, even with all the automated processes, you still need discipline to ensure the fundamentals of troubleshooting and failure analysis/analytics aren’t lost. Adding devices to monitor operating conditions does little if you can’t put that feedback into context.

The importance of the information gleaned from the repair and refurbishment of equipment can’t be understated. This should be a critical component of any downtime reduction strategy, as it can deliver more than just the face-value savings that result from repair versus replace.

Properly analyzing the mode of failure can provide valuable information about what caused that failure, and thus can be used in an effort to resolve underlying issues. Resolving these underlying issues is the true key to avoiding future unscheduled downtime.

Common Modes of Failure

There are several common modes of failure for variable displacement piston pumps. Understanding these modes of failure, the causes, warning signs, and the prophylactic means of monitoring will help you to reduce unscheduled downtime.

The four most common modes of failure in piston pumps result from the following:

  • Oil contamination
  • Fatigue from transient pressure spikes
  • Blocked or restricted pump inlet
  • Pump case over-pressurization.

These four modes account for the vast majority of all failures seen in the thousands of units inspected and repaired each year by the service technicians.

Oil Contamination 

Contamination can be the result of many things, including egress of water, environmental contaminants, or component ware elements.

Telltale signs of contamination include:

  • Valve plate scoring
  • Vertical scratches on piston barrels
  • Scratches on the face of pistons
  • Excessive wear of saddle bearings (or embedded particulate)
  • Plugged orifices
  • Stuck compensator spools
  • Pistons being seized within the cylinder bore of the barrel.

Fatigue from Transient Pressure Spikes

The fatigue that results from transient pressure spikes will present in the form of broken pistons (at the neck), shafts (where the cylinder barrel rides or at the tail), sheered control pins, damaged yokes, or the appearance of cracks between the kidneys of the cylinder barrel. Of the four common modes of failure, this is by far the most difficult problem to identify through electronic monitoring. It takes a device with an exceptionally quick scan rate as spikes can form and dissipate within the window of a few milliseconds.

If you suspect that your system is experiencing transient pressure spikes, hand-held monitoring devices are offered by many OEMs and are an excellent addition to any reliability team’s troubleshooting toolbox.

Blocked or Restricted Pump Inlets

Blocked or restricted pump inlets will typically present in the form of cavitation on the valve plate or what some service technicians refer to as a “marble sound.” Vacuum at the inlet leads to the formation and collapse of small vapor-filled voids. The shockwave generated by the collapse of these voids leads to surface damage on the valve plate as well as the telltale sound.

Ways to monitor for this condition include the following:

  • A limit switch mounted on a suction ball valve feeding the pump (a common system interlock)
  • A pressure transducer installed into the suction line
  • Vibration monitoring through the use of accelerometers mounted to the pump

Pump Case Over-Pressurization

Pump case over-pressurization can present in the half-moon gouging or full-moon scoring of the swashplate, damaged shoe retainer, bent seal retainer, or protruding shaft seals as well as shoe damage—rounded edges, loose fit on the ball, and excessive wear on the backs of the shoes. This kind of damage will be the result of shoe lift or rolling caused by the increased case pressure.

This condition can be monitored through the use of a pressure transducer in the case line. In practice, however, this is rarely done. The most common type of monitoring for case drains is flow observation. Monitoring for flow can give you a good indication of pump life—allowing you to see how efficient the pump is running (that is if 10% is leaving the case only 90% is going into the system). As a guide: Flow greater than 10% of total flow capacity of the pump indicates excessive wear. It is also worth noting that this method of monitoring pump life is not valid for pumps that have an internal check between the case and suction.

Understanding these modes of failure, the signs, root cause, and methods for identification will help to reduce unscheduled downtime and improve overall system reliability when it matters most.

Yarbrough Industries has years of experience with hydraulic pumps and motors and is always happy to answer your questions or help with things such as troubleshooting, on-site installations and technical training/support. For more information, please contact us.

Need additional assistance? Contact us today!

Name
Contact us today.

Get direct access to industry-leading content

This industry moves fast, but you can move even faster if you’re up to date on trends, technical developments, and best practices. The Yarbrough Industries blog is a go-to source for valuable, timely and detailed information. Sign up to ensure that you don’t miss a single post.