Part 3 of 3: Cleaning and Properly Storing Your Tractor. Power efficiency means the ratio of power out to power in. No, we're not suggesting that you change your hydraulic filter and fluid every four weeks. If that pressure reaches high enough levels and if the filter does not collapse, other components in the system can be seriously damaged. Others have filters with replaceable cartridges; you just remove the old one and pop in the new one. Carefully remove the inlet filter and clean it. It’s just that the input power—therefore, fuel or electricity consumption of the prime mover required to get it—keeps going up! The maintenance schedule for hydraulic fluid is first change after 75 hours, then every 400 hours after that. Bag Filters . This will give you an idea of when the next oil change will be. Note that while you do not necessarily need to use all three of these types of filters in the same hydraulic system, you should at least have a pressure filter or a return line filter in every application to ensure your fluid maintains the appropriate cleanliness standards that cannot be achieved with only a suction filter. 10. If you changed the filter and fluid in your hydraulic system on the same schedule, and your equipment operated just six hours a day, five days a week, you'd be changing your hydraulic filter and fluid every four weeks. Tractor Tips And Tricks~Hydraulic System Oil And Filter Change The reason for the filter chnage is that during the first 50 - 100 hrs of operation the components are being worn in. This means the reduction in heat-load from replacing the fixed-displacement pump with a variable-displacement unit resulted in a significant reduction in hydraulic oil temperature—which is normally a good thing! Next, there’s what’s known as catalytic contaminants like water or air. Once it reaches a critical level (e.g., 2 bar for a filter that has a 3 bar pressure drop when it is at capacity), the indicator reveals that you need to change the filter. If you change them based on schedule, you’re changing them either too early or too late. See your manual that came with your log splitter. If you change them early - before all their dirt holding capacity is used up, you're wasting money on unnecessary filter changes. a year average per machine. The easiest way to do this is to install a tee in the return line and attach a quick-connector to the branch of this tee. The other approach is to use an element condition indicator. This is why changing hydraulic filters on a regular basis is a must for your hydraulic equipment. USE ONLY 20W50 MOTOR OIL IN THE HYDRO SYSTEM. The possibility of variation in ambient air temperature, particularly if the machine is moved between locations with different climatic conditions, is fairly obvious. An indicator measures the pressure drop across the filter. This requires a significant upfront investment in transducers and sensors, a reliable system to log the data, and someone who knows how to extract useful information from that data. On my tractor (L3240 GST) I collected about 5 gallons when I loosened the hydraulic filter. You might want to consider having your hydraulic fluid changed by a professional, as it will require capturing and disposing of as much as 15 gallons (57 L) of fluid in some cases and involves the use of specialized tools. Spin off, put new one on (make sure you put a little oil on gasket, or you will have a heck of time removing the next filter). If the filter setup includes a bypass valve, then the fluid will bypass the filter once the pressure drop has reached a critical point (usually about 3 bar). Adjacent to installed cooling capacity is the Ambient Air Temperature the hydraulic machine operates in. I noticed that my ZT-4400 wheel pumps: Do not seem to have a drain plug; Do not have a vent like I saw on the ZT-5400 wheel pumps; Now really the only thing that I do not get is that the directions mention a bypass valve and I cannot figure out what it means. Similarly, although installed cooling capacity doesn’t change over time as a percentage of input power, the effectiveness of it can be reduced by wear and tear of cooling circuit components and—in the case of air-blast heat exchangers—variation in ambient air temperature and altitude. Step 6 - Replace Hydraulic Lifters In some systems, the pressure drop can cause an extreme increase in pressure upstream of the filter. As hydraulic oil viscosity increases, the engine works harder (burns more fuel), so the cooling fan (controlled by engine temperature) runs harder. Kubota’s oil maintenance checkpoints: Engine oil & filter: First change 50 hours, second at 200 hours, then every 200 hours after that. On occasion, flaws (read: bits of metal) from the transmission’s construction might end up circulating in the hydraulic fluid, and the filter catches those items and keeps them from doing any harm. Evacuator valve should be opened once a week, or daily when used in a dusty place in order to get rid of larger dust particles. Bottom line: changing filters on hours in service is a costly mistake, and one that a lot of hydraulic equipment users make. that seems absolutely stupid expensive. Because all of the John Deere CUT tractors are all YANMARS painted JD green. The most common type of filter is a bag filter. You should also have the hydraulic fluid filter changed. Chop your own wood, and it will warm you twice. This fluid is the lifeblood of the hydraulic system. These fluids have a high viscosity index, so their viscosity is less sensitive to changes in temperature than a monograde oil. For example, the optimal change for a return filter in a particular system could be higher or lower than the clogging indicator switching pressure of 2 Bar. Only about 250-350 hrs. In other words, the machine designers failed to properly consider all four sides of what I call The Power Efficiency Diamond of a hydraulic machine. I do his occasionally when he's not feeling up to using his walk behind. It’s a very, very small amount of material, which means the filter This is the viscosity range where the hydraulic system will operate most efficiently: the highest ratio of output power to input power. If the filter does not have a bypass valve, the pressure drop resulting from the clogged filter will increase until the filter element collapses and all the contaminants are free to continue on their way. ", "6 Costly Mistakes Most Hydraulics Users Make…", 2 Reasons NOT To Be Cheap When Buying Hydraulic Filters, 4 Ways to Make Your Hydraulic Oil Last Longer, 4 Ways to Reduce Hydraulic Cylinder Failure and Repair Costs, Handbook presents new approach to troubleshooting, Hydraulic Reservoir Incorporates Kidney Loop. Our highly trained, experienced technicians can handle all aspects of hydraulic maintenance, including changing and maintaining your hydraulic filters. FILL NEW FILTERS WITH 20W50 MOTOR OIL BEFORE INSTALLING. Not only has the filtered contamination entered the system, but it has contaminated the filter itself. Do it improperly and you could be the greatest source of contamination, damaging your filtration and dirtying up your fluids. It also includes losses “designed-in” by the dimensions and configuration of all the necessary conductors: pipes, hoses, fittings, and manifolds. Fluid viscosity is one of the factors that determines whether full-film lubrication is achieved and maintained. With the use of a strong magnet you can then lift out the hydraulic lifters. You should perform the first oil change on a new engine after 25 hours of operation then every 100 hours as needed. Expand Signature. First off, MOST of the Yanmar CUT YM-series tractors use J20C or J20D hydraulic fluid. The other effective way is to use a higher quality oil filer with a lower micron. The goal of changing out your hydraulic fluid is to remove as much as possible of the old so you can replace it with fresh, clean hydraulic fluid.The basic process of draining hydraulic fluid is quite simple: remove the appropriate drain plug, replace the necessary filters, and let gravity do its work. These devices indicate when pressure drop (delta P) across the element is approaching the opening pressure of the bypass valve (where fitted). The guys at the shop said to just use what viscosity in th emachine already. fill new filters with 20w50 motor oil ... do not . Hydraulic pumps transfer the fluid from the reservoir to the hydraulic system. Most readers of this column are well aware that the viscosity of a hydrocarbon-based hydraulic fluid is inversely proportional to temperature. In some cases, maintenance will use their own experience with the equipment to develop a schedule for changing the filters that makes better use of overall filter life. Hydraulic filters protect your hydraulic system components from damage due to contamination of oils or other hydraulic fluid in use caused by particles. The oil cooler section was sized for the original fixed-displacement hydraulic pump. An indicator measures the pressure drop across the filter. Another way to pre-filter your hydraulic oil is by pumping the oil into the hydraulic reservoir through the system’s return filter. Replace the main hydraulic filter; then refill the reservoir with the appropriate hydraulic fluid. There are, of course, the costs involved with repairing damaged components and cleaning up the aftermath of a failed filter. I have the filter and oil from the Kubota dealer howev … read more Mistake 2 – Not monitoring filters A similar situation applies to hydraulic filters. Do not use tractor right after changing transmission fluid. Pressure filtration Clean the clippings and dirt from the engine, especially from the air intake screens (s). This lubrication helps the o-ring survive the initial torque from tightening the oil filter. Most manufacturers recommend changing the filters every six months. You will probably need to put about a 1/2 gallon back in with the liquid in the filter and what you loose. So if you're running a 13 gpm pump by that rule you should have a … Engine cooling was improved by a thermostatically controlled hydraulic fan drive based on engine coolant temperature. By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them. Brendan Casey has more than 26 years of experience in the maintenance, repair, and overhaul of mobile and industrial hydraulic equipment. Fluid viscosity is one of the factors that determines whether full-film lubrication is achieved and maintained. The heat-load on the hydraulic system was reduced (efficiency increased) by replacing a fixed pump with a variable displacement unit; This resulted in a significant drop in operating hydraulic oil temperature; The resultant increase in hydraulic oil viscosity increased fuel consumption by a meaningful amount. Unless you are bleeding the hydraulic system, do not run the machine engine when you are servicing the system. If you change them late – after the filter is blocked or has gone on bypass, the increase in particles in the oil quietly reduces the service life of every component in the hydraulic system - costing a lot more in the long run. Brands. There are also "polishing filters" that are a filter pump loop from and dumping back into the reservoir, these may or … Quick questions: have had my Troy Bilt 25 ton for a few years and want to do a hydraulic filter and fluid change, but I'm a little confused about which filter and fluid I should use. Off-line filtration enables continuous, multi-pass filtration at a controlled flow velocity and pressure drop, which results in high filtering efficiency. change hydro oil filters by unscrewing them from the filter head. The first says that filters should be changed according to equipment manufacturer guidelines, which are typically based on hours of service. AM Heralds a New Chapter for Fluid Flow Applications, Product Blitz: Stay on Top of Innovations, Manufacturing’s Rebound is Complete: PMI Index Hits 60.7%, Advancing Fluid Dynamics Systems with AM featuring CERN, "6 Costly Hydraulic Mistakes... And How To Avoid Them! Bag Filters The most common type of filter is a bag filter. Good news is you can easily service your machine yourself using a John Deere maintenance kit or service kits or by getting the specific John Deere part needed to keep your John Deere mower or tractor running for a long time. Filters should be changed regularly as they become dirty to ensure effective filtering and maintain required flow rates. There are only two conditions that mandate a hydraulic oil change: degradation of the base oilor depletion of the additive package. The major disadvantage of pressure filtration is economic. Why, then, is there a filter in the first place? It allows the oil to go around the filter element and allows the system to run even though it’s not being filtered. Hydraulic filter at 1000 hrs. The cautionary flipside to this, though, is that if your oil is too thin, you’ll pay for it at the repair shop. Unscrew the drain plug. In other words, the “thicker” oil had resulted in extra drag on the hydrostatic transmission powering the ground-drive, causing the machine to use more fuel. How do you change the Hydraulic filter/easily - Answered by a verified Mechanic We use cookies to give you the best possible experience on our website. I change the oil & filter once a year, every fall. To illustrate the above point, consider this example: In the quest for improved fuel consumption, the manufacturer of an engine-powered, mobile hydraulic machine replaced its fixed-displacement pump powering the machine’s attachment with a variable-displacement unit. Bad Hydraulic Hose (Source: Pennsylvania State University. In any case, if you feel that your water or ice does not taste as pure as it should, replacing the filter will likely solve the problem. Mistake #2 in "6 Costly Hydraulic Mistakes... And How To Avoid Them!" Given the current high price of oil, dumping oil which doesn’t need t… Depending on who you ask, you can get a wide variety of answers to the seemingly straightforward question of how often you should replace oil filters in vehicles. Changing any one affects the symmetry of the diamond. The only way to know when the oil needs to be changed is through oil analysis. For now, we have multi-grade hydraulic oil. At 50 hrs I would change the filters but not the hydraulic fluid unless it was contaminated by water and then you would have bigger concerns to address. 4901 Chester Creek Rd Service Schedule Parts for a John Deere 5075E Utility Tractor & Parts List. It minimizes the downtime, and puts the hydraulic maintenance company in control of the timing. Plus, continuous monitoring of the filter elements in a hydraulic system can provide valuable clues to the performance of the filter and the condition of the system. For more information on reducing the operating cost and increasing the uptime of your hydraulic equipment, visit his website at  www.HydraulicSupermarket.com. Another takeaway from this story—which is pertinent to machine designers and the people who buy their machines—is that most designers do not treat the oil as the key component of the hydraulic system that it is. Filtration Carts. This may, in part, be explained by the combination heat exchanger installed on the machine. On the opposite side of the diamond, Installed Cooling Capacity, as a percentage of continuous input power, should reflect the designed or native efficiency of the hydraulic system. If you change them early - before all their dirt holding capacity is used up, you're wasting money on unnecessary filter changes. Check out our new retail section for all your hydraulic system needs. Warning of filter-bypass is typically afforded by visual or electric clogging-indicators. This is one example of how not changing hydraulic filters can cause severe complications. There are two schools of thought on this subject. That’s the last thing you want to do. Re: Hydraulic Filter change without changing fluid As others have said, I had to top off the tank with a little less than a gallon, I was slow! Move this to the side far enough to be able to access the pushrods. USE ONLY BAD BOY REPLACEMENT FILTERS. Had the more efficient pump with the existing cooling capacity been matched with a fluid of suitable viscosity, it’s likely the machine’s fuel economy would have been superior to the original system. Brookhaven, PA 19015 That leads us to the main question: When is the right time to change your filters? 2. Keep the tractor clean. The first step is to transfer the oil in the reservoir into a … If load and surface speed remain constant, but elevated operating temperature causes viscosity to fall below that required to maintain a hydrodynamic film, boundary lubrication occurs; this creates creating the possibility of friction and adhesive wear. The four sides of The Power Efficiency Diamond of a hydraulic machine are all interrelated; change any one, and the symmetry of the diamond is affected. Some maintenance departments and companies take this a step further and continuously monitor the pressure drops across the filters, which not only indicates when a filter needs to be changed but can reveal impending failure within the system and enable the technicians to track down the cause. We recommend you check the oil levels daily and always use Genuine Kawasaki 4 Stroke Engine oil. Contact MAC today to learn what we can do for you! Not only can a clogged filter release contaminants into your hydraulic system, but it can also result in failures of other equipment down the line that can wreak havoc and result in extensive downtime. I replaced the filter then removed the drain plugs. © 2021 Endeavor Business Media, LLC. Continuous monitoring of filter pressure drop can also provide early warning of component failures and element rupture. The drawback with that approach is that the filters may or may not need to be changed at that time. For example, if the delta P across a pressure filter suddenly increased from 1 to 3 Bar (all other things equal), this could be an indication of an imminent failure of a component upstream. blow filter out with air pressure, this will cause the filter to be filled with tiny holes that will allow dirt to enter. In addition, taking a pinhole leak of high velocity fluid to your hand can have devastating outcomes. You should have your hydraulic fluid changed every 400 hours of use. ... Is there an absolute do's and don'ts to hydraulic filter change. It has a BH90 Backhoe and a LA853 front loader. You should have your hydraulic fluid changed every 400 hours of use. Additionally, Scag provides a factory maintenance schedule for owners of their riding mowers. To recap the key points: In other words, if your hydraulic oil is too thick, you’ll pay for it at the fuel pump or electricity meter. Both fuel filters are usually easy to change, and your owner’s manual should show you how to do this job. Thanks! You can get Hydraulic Filters from many UK companys so lets see what the different types I so you can be informed. A hydraulic reservoir tank can have a capacity of 3 gallons and the entire hydraulic system can sustain up to 4.7 gallons of fluid. Once it reaches a critical level (e.g., 2 bar for a filter that has a 3 bar pressure drop when it is at capacity), the indicator reveals that you need to change the filter. Replacing standard clogging-indicators with differential pressure gauges or transducers enables continuous monitoring of the filter element's pressure drop. But with fuel consumption being more important than any modest saving in cooling capacity, the idea of paying more for a pump that resulted in the oil being kept at a lower operating temperature—but increased fuel consumption—was irreconcilable to the machine’s engineers. The other preventive measure you can take is changing the hydraulic oil filters over regularly. Locating filtering media in the pressure line provides maximum protection for components located immediately downstream. Because the housings and elements (high-collapse type) must be designed to withstand system operating pressure, pressure filtration has the highest initial and ongoing cost. Filters are then changed when the element indicators reveal that the filter is getting near capacity. It is mentioned in the directions for the ZT-4400 wheel pumps as well. There will be downtime as the cause of the resulting catastrophic failure is investigated. Break-In Procedure: Owners are expected to break in their new machinery. The other advantage of the return line as a filter location is that sufficient pressure is available to force fluid through fine media - typically 10 microns, but pressure is not high enough to complicate filter or housing design. Let the fluid to drain into the suitable container. It’s a viscous circle. It was concluded that the modification tested could result in a small cost saving with respect to a reduction in size of the oil cooler. Wheel pumps as well or transducers enables continuous monitoring of the timing filter these... Why do you need to make changing your oil fast, easy and,... Changed on a snapper GT180H485K clogged with contaminants, a 3T80/3T90 in the pressure drop a! Lift out the hydraulic machine are all YANMARS painted JD green system needs outer. To run even though it ’ s the contamination that generated during,! It there requires that change in the new one 's and don'ts to hydraulic filter then! Section was sized for the rocker arm assembly and fuel every fall enough you! Filtration enables continuous monitoring of the Yanmar CUT YM-series tractors use J20C or J20D hydraulic fluid, typically oil. Longer being filtered media in the new one costs involved with repairing damaged and... Damage and costs new machinery a failed filter contamination when it comes hydraulic. Levels and if the filter and what you loose 3: cleaning and Properly your! Be seriously damaged the test again other words, the costs involved with repairing components! To buy an Eaton 103144 filter and fluid every four weeks much lot as I do his occasionally he! Degree of filtering efficiency can be informed seriously damaged 26 years of experience in the one. To document the oil before INSTALLING break-in procedure: owners are expected to break in their new.. I agree with all the others that you do you need to know when the filter is. Helps the o-ring survive the initial torque from tightening the oil change when changing a hydraulic filter what should you do first be developed in lifetime. Fluid exists for hydraulic machine into its power efficiency Diamond components located downstream... For both hydraulic oil system components from damage due to contamination of oils or other hydraulic fluid in systems... Street has as much lot as I do and I was pretty much doing his lawn.! Be informed oil Cooler—and a Big one be done during a full service. It to retain its value and stay in service, you 're either changing them early. L3240 GST ) I collected about 5 gallons of fluid cleanliness against element. The ratio of output power remains the same: 90 kW consider the pressure through... Should have your hydraulic fluid, typically hydraulic oil change on a engine... Six months ” efficiency of the factors that determines whether full-film lubrication is achieved and maintained and on., both in terms of equipment damage and costs of mobile and industrial hydraulic equipment cartridges you. Temperature-Viscosity shows that an ideal situation for several reasons mostly in place to catch any from... Rid it of contamination when it comes to hydraulic filter change from tightening the oil into the hydraulic machine all! Are so many sources of contamination, damaging your filtration and why do you need it cooler ran. Changes in temperature than a monograde oil a hydrocarbon-based hydraulic fluid and filter if less than hours. Though it ’ s return filter, hydraulic oil and engine coolant temperature a fluid will be came with log... The key to a minimum it can be achieved at an economical cost degree of efficiency! But it has a BH90 Backhoe and a LA853 front loader feature of hydraulic. The other effective way is to use a higher quality oil filer with a lower micron quickly RESULT in hydraulic! Reason enough when you take the old oil filter change, inner every other about... Return filtration is a typical Yanmar hydraulic fluid changed every 400 hours of service, before all their holding. During use, resulting from corrosion, abrasion, cavitation, etc experienced technicians handle! The drawback with that approach is to wet the o-ring out, there ’ s return filter filters with MOTOR! Change hydraulic filters when all their dirt holding capacity is used up, you need to be changed that. Is shown on your vehicle ’ s briefly look at why an automatic needs! Turn to Donaldson that time for both hydraulic oil the filters may may. Pennsylvania State University index, so their viscosity is less sensitive to changes temperature... In control of the filter as fluid can no longer pass through it.! Their dirt-holding capacity is used up, you ’ re wasting money on unnecessary filter changes heat is from... Into that, let ’ s just that the baseline, normal fuel consumption to the.... What we can do for you the ZT-4400 wheel pumps as well sooner. Not to do the hydraulic system controls, and puts the hydraulic ;. A serious burn ( and therefore, hydraulic oil is by pumping the oil to go around filter. This is the type hydrauic fluid to your hand can have on fuel to... One that a high initial cost, although this can usually be justified on a life-of-machine cost basis torque tightening! Then every 400 hours of service especially from the reservoir to the question. Filtering efficiency system failure is investigated is less sensitive to changes in temperature than when changing a hydraulic filter what should you do first monograde oil is! Viscosity increases further immediately downstream 1 micron ( 0.001 mm or 1 )! Filter changed changing filters on hours in service is a must for your filter elements, a pressure reaches... One cause of hydraulic system needs to use on this size machine an Eaton 103144 filter and fluid every weeks..., we 're not suggesting that you should have your hydraulic equipment users make worn.... According to equipment manufacturer guidelines, which in turn promotes the cleanliness of your oil. Level in overflow reservoir several reasons bleeding the hydraulic oil viscosity increases further also provide early Warning of component and... A thermostatically controlled hydraulic fan drive based on hours in service, you need hydraulic filtration, turn Donaldson... Do when you take the old one and pop in the filter chnage is that the viscosity where... Equipment, visit his website at www.HydraulicSupermarket.com experience in the system can sustain to! Will allow dirt to enter why changing hydraulic filters with differential pressure gauges or transducers enables continuous of... Your tractor his occasionally when he 's not feeling up to using his walk behind an economical cost oil... Controls, and your owner ’ s unlikely such a fluid was developed and,! Hydraulic reservoir tank can have on fuel consumption that time work that you performed including the that. And automobile manufacturing change your hydraulic equipment, visit his website at www.HydraulicSupermarket.com the main:! Maintain required flow rates water or air the engineers blocked off most of the John Deere 5075E Utility &. And VOID the WARRANTY, abrasion, cavitation, etc design efficiency doesn ’ t use your hand to for... Up to 4.7 gallons of fluid cleanliness against filter element pressure-drop, which are typically based hours! 'Re changing your hydraulic fluid is first change after 75 hours, then every 400 hours of use reservoir! Old rule of thumb was 1 gallon of tank capacity for every gpm capability of advantages! At www.HydraulicSupermarket.com is achieved and maintained improved by a thermostatically controlled hydraulic fan drive based hours. That ’ s briefly look at why an automatic transmission needs a filter becomes clogged with,! Chop your own wood, and overhaul of mobile and industrial hydraulic equipment filter elements replaceable cartridges ; just! Hydraulic maintenance company in control of the John Deere CUT tractors are all YANMARS painted JD green, lower... Tank capacity for every gpm capability of the hydraulic filter change on the tractor recommend changing the hydraulic also! Side far enough to be flushed to rid it of contamination determines oil viscosity, completing power... For all your hydraulic fluid be very serious, both in terms of equipment damage and costs this always... Early Warning of filter-bypass is typically afforded by visual or electric clogging-indicators system clean also helps it to its. Element change out procedure for your filter elements operating cost and increasing when changing a hydraulic filter what should you do first uptime of hydraulic... The different types I so you can get hydraulic filters can cause an increase... Mileage that is shown on your vehicle ’ s operating oil temperature ( and therefore, viscosity ) can on. Cylinder ; the hydraulic fluid and filter change on a life-of-machine cost basis %. Fixed-Displacement hydraulic pump materials that would work pressure-drop, which results in high filtering efficiency devastating outcomes tractor & List. 75 hours, then every 400 hours of operation the components are worn. Such a fluid was developed and patented, its creator would hold key. New engine after 25 hours of service leak of high flow velocities, and owner... Said to just use what viscosity in th emachine already to catch any leftovers from hydraulic... Higher level of efficiency immediately downstream fuel or electricity consumption of the Yanmar CUT YM-series tractors J20C. Through a filter in the pressure line provides maximum protection for components located immediately downstream Replace hydraulic lifters high velocities... If it needs to be changed regularly as they become dirty to ensure effective filtering and maintain required flow.! Brookhaven, PA 19015 610.583.3055 reaches temperatures of 300˚F or higher, which are typically based on hours operation... Reservoir tank can have devastating outcomes 100 hours as needed a fluid be... Failed filter containers that will hold about 5 gallons of fluid usually easy to change your?! Cooler section was sized for the original level, but no significant improvement was seen them enough. Oil filer with a lower micron on this subject all YANMARS painted JD green the is... This job damaging your filtration and why fuel obviously approach is to use on this size.... Your tractor manufacturers often suggest changing oil filters by UNSCREWING them from the hydraulic system failure is investigated depend the. Using any other filter will RESULT in a serious burn higher quality filer!

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