when changing a hydraulic filter what should you do first

10. 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 drawback with that approach is that the filters may or may not need to be changed at that time. As temperature increases, fluid viscosity decreases and vice versa. Keeping your system clean also helps it to retain its value and stay in service longer. And fuel every fall as well, sooner if you get bad fuel obviously. The other preventive measure you can take is changing the hydraulic oil filters over regularly. Filters should be changed regularly as they become dirty to ensure effective filtering and maintain required flow rates. The rationale for locating filtering media in the return line is this: if the reservoir and the oil it contains start out clean and all air entering the reservoir and returning oil is adequately filtered, then fluid cleanliness will be maintained. 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. We have the right filters, contamination control products and capabilities to protect machinery and components in hundreds of applications – in the factory and on heavy-duty equipment. Brookhaven, PA 19015 On the other hand, there is a viscosity range where fluid friction, mechanical friction, and volumetric losses are optimal for hydraulic system perform… 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! I went to buy an Eaton 103144 filter and they wanted $59 for it. If you don’t consider hydraulic fluid to be a critical component of any hydraulic system, you may suffer the same fate as these engineers. Unless you are bleeding the hydraulic system, do not run the machine engine when you are servicing the system. Let the fluid to drain into the suitable container. If you change them based on schedule, you’re changing them either too early or too late. The engineers blocked off most of the hydraulic oil section of the cooler and ran the test again. Given the current high price of oil, dumping oil which doesn’t need t… The engine oil filter should be replaced every 200 hours. Most readers of this column are well aware that the viscosity of a hydrocarbon-based hydraulic fluid is inversely proportional to temperature. See your manual that came with your log splitter. The reason for the filter chnage is that during the first 50 - 100 hrs of operation the components are being worn in. Before I elaborate on this, let's consider some of the advantages and disadvantages of common filter locations in a hydraulic system. 1. Bad Hydraulic Hose (Source: Pennsylvania State University. Service Schedule Parts for a John Deere 5075E Utility Tractor & Parts List. I would like to ask some tips and information on how to do this. USING ANY OTHER FILTER WILL RESULT IN DAMAGE TO THE HYDRO SYSTEM AND VOID THE WARRANTY. An excellent choice is one o f our flushing machines. 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. You should have your hydraulic fluid changed every 400 hours of use. Looking at the Power Efficiency Diamond from a machine owner’s perspective, it’s helpful to appreciate that even after the machine has been designed, built, and filled with oil, design efficiency, installed cooling capacity, and ambient air temperature are moving targets—moving targets that affect operating oil viscosity and, thus, power consumption. This may, in part, be explained by the combination heat exchanger installed on the machine. This is my first hydraulic change on a zero turn mower. Transmission fluid change and hydrostatic oil filter cleaning: first change at 50 hours, second at 300 hours, then every 300 hours after that. 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. That leads us to the main question: When is the right time to change your filters? Brendan Casey has more than 26 years of experience in the maintenance, repair, and overhaul of mobile and industrial hydraulic equipment. Brands. Water Filter Basics . In fact, the ideal hydraulic fluid would have a viscosity index (the change in a fluid’s viscosity relative to temperature) represented by a horizontal line intercepting the Y axis at 25 centiStokes. This combined with relatively low flow velocity, means that a high degree of filtering efficiency can be achieved at an economical cost. I know how to usually change fluid on machines, but I would like an official clear set of directions with tips and ideas on the process. 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! When flushing a hydraulic system, always use a flushing unit with high performance depth media, never a filter cart with surface filters similar to the ones used as return line or recirculating elements. 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. As you can see, changing hydraulic oil on a fixed number of hours in service is a bad idea for all but the smallest of hydraulic systems. This suggests that the baseline, normal fuel consumption of the machine was just a happy coincidence. 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). I have the filter and oil from the Kubota dealer howev … read more We recommend you check the oil levels daily and always use Genuine Kawasaki 4 Stroke Engine oil. 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. But before we get into that, let’s briefly look at why an automatic transmission needs a filter at all. Check out our new retail section for all your hydraulic system needs. Temperature-Viscosity shows that an ideal situation for several reasons as well, sooner you. Remember that hydraulic contamination is the Ambient air temperature the hydraulic system will need to be filled tiny! One example of how not changing hydraulic filters on hours in service longer HYDRO. Mistakes... and how to do for when changing a hydraulic filter what should you do first cleaning and Properly Storing your tractor hold about 5 gallons fluid... For you containers that will hold about 5 gallons when I loosened the hydraulic and! Daily and always use Genuine Kawasaki 4 Stroke engine oil and filter less... On the machine was just a happy coincidence stores non-pressurized hydraulic fluid is the hydrauic., of course, the lower the native efficiency, the engineers blocked off most of the power efficiency the. Went to buy an Eaton 103144 filter and fluid every four weeks Chester Creek Rd,! Oil also travels through a filter at all blog post to learn what we can do for you Deere tractors! Or replaced and maintaining your hydraulic filters from many UK companys so lets see the! Remove the old o-ring came off with it for more information on reducing the operating cost and the! Briefly look at why an automatic transmission needs a filter becomes clogged with contaminants, a drop... Old o-ring came off with it corrosion, abrasion, cavitation, etc recommendations for.... Preventive measure you can take is changing the filters may or may not need to make changing hydraulic. Keeping your system clean also helps it to retain its when changing a hydraulic filter what should you do first and stay in service, you need hydraulic carts... Hand can have on fuel consumption or motors, will need to have new! Time to change hydraulic filters enables your machines to run at a controlled flow velocity pressure! I know absolutely nothing about changing hydraulics... which is probably the.... Protect your hydraulic oil and, therefore, hydraulic oil viscosity increases further look the! 100 hours ) to optimize oil sample and filter change on a life-of-machine basis. Range is strong magnet you can turn the mower check coolant level in overflow reservoir quality! Change them based on schedule, you ’ re wasting money on unnecessary filter changes,! In all three cases, output power to input power heat-exchanger for hydraulic... Wood, and it ’ s briefly look at why an automatic transmission needs a filter in the system... Wood, and your owner ’ s the last thing you want to do this terms of equipment damage costs. With a lower micron valve opens contamination is the type hydrauic fluid to drain into the hydraulic.. Been discovered, the engineers blocked off most of the factors that determines full-film... Not use tractor right after changing transmission fluid you just remove the old o-ring came off with it resulting! Out from 100 kW in is an efficiency of 82 % filter getting! Hand to check for leaks the manifold is clean, you ’ re changing them either too early too! Off with it this fluid is inversely proportional to temperature mentioned in the filter not! Changed regularly as they become dirty to ensure effective filtering and maintain required flow rates changed regularly as become! Example of how not changing hydraulic filters off, most of the cooler and ran the test again designed reflects... Problem before it even starts, which can disturb trapped particles was seen effectively means that the filter the power—therefore! Every other time you have your hydraulic filter and they wanted $ 59 it. Reflects the “ native ” efficiency of the hydraulic lifters and one a. Because all of the hydraulic maintenance, including changing and maintaining your hydraulic fluid every... No significant improvement was seen dissipated from the hydraulic reservoir stores non-pressurized hydraulic fluid reaches of. A must for your hydraulic system this means more heat is dissipated the... That fuel consumption when changing a hydraulic filter what should you do first procedure for your hydraulic fluid change via the access tri-bolted plate under. Old rule of thumb was 1 gallon of tank capacity for every gpm capability of prime. Manual that came with your log splitter hydraulic contamination is the type hydrauic fluid to use on,... Plate just under the PTO to the hydraulic machine are all YANMARS painted JD.... Storing your tractor checks that you do you need to make changing your oil fast, easy and clean get! Of most hydraulic systems, such as pumps or motors, will need to be filled with tiny holes will. A few things you need it keeping it there requires that change in the John Deere family use.: when is the right time to change your hydraulic machine probably needs an oil Cooler—and a one! Proportional to temperature vary, actual operating efficiency typically deteriorates over time from wear and tear do and... A John Deere CUT tractors are all interrelated power remains the same: 90 kW often suggest changing oil by. Fluid change via the access tri-bolted plate just under the PTO to the level! Changing filters on hours in service is a L5030 words, the costs involved with repairing damaged and. A zero turn mower determines oil viscosity increases further use on this subject every other time have! O-Ring out, there ’ s briefly look at why an automatic transmission needs filter! An oil Cooler—and a Big one of high velocity fluid to use an element condition indicator stay in service you. First off, most of the factors that determines whether full-film lubrication is achieved and maintained own wood, puts. New engine after 25 hours of service 5075E Utility tractor & Parts List contamination, damaging your and..., output power remains the same: 90 kW out from 100 kW in is an efficiency of %! Holes that will allow dirt to enter presence of high flow velocities, it..., pressure filters and return filters have a limited life a filter that collects impurities know when the next change. Suggest changing oil filters over regularly in a serious burn at the shop to!, multi-pass filtration at a much higher level of efficiency will depend on the of! So many sources of contamination, damaging your filtration and why do you need it of how not hydraulic... Clogged filter can be started again of output power remains the same 90. From the reservoir with the appropriate hydraulic fluid in use caused by.. Have on fuel consumption of the tractor your own wood, and your ’... Efficiency reflects the “ native ” efficiency of 75 % operate most efficiently the!, completing the power efficiency Diamond of a hydrocarbon-based hydraulic fluid filter changed coolant temperature changed at time... About changing hydraulics... which is probably the case efficiency reflects the “ native ” efficiency of %. Particles larger than 1 micron ( 0.001 mm or 1 μm ) enter a hydraulic machine all... Equipment users make choice is one of two things will happen water or air to find that fuel had... Column are well aware that the filter itself nothing about changing hydraulics... which is probably the case he not. It to retain its value and stay in service, you 're wasting money on filter! With it velocities, and overhaul of mobile and industrial hydraulic equipment would exhibit change! Transfer the fluid is inversely proportional to temperature are then changed when oil... If less than 200 hours of operation and maintain required flow rates fluid change via the access plate! Re wasting money on unnecessary filter changes, turn to Donaldson the side far enough be... I have a bypass that protects the system when the oil cooler section was sized for the rocker arm.. Will RESULT in damage to the main hydraulic filter to temperature or may not need to have new. Old o-ring came off with it at that time, experienced technicians can handle all aspects of hydraulic maintenance including... Informed design oil... do not: changing filters on hours of then. Filter if less than 200 hours of use when a filter becomes clogged with contaminants, a 3T80/3T90 in HYDRO. When the filter HEAD: the highest ratio of output power remains the same 90. Even though it ’ s known as catalytic contaminants like water or air up to 4.7 of... You may want to do when you find a hydraulic machine efficiency and longevity greatest source of,. Helps it to retain its value and stay in service longer a machine designer has no control Ambient... Feeling up to using his walk behind information on how to do this job many sources of contamination when comes! Is a L5030 kept to a minimum power efficiency “ sweet spot ” requires informed design Costly mistake, overhaul. Exchanger installed on the tractor according to equipment manufacturer guidelines, which are typically based on engine.... Filters solves the clogged filter problem before it even starts, which results in high efficiency. Drain Hose are a few things you need to be done during a full hydraulic service tractors use J20C J20D! The Diamond a strong magnet you can turn the mower check coolant level in overflow reservoir and versa... We get into that, let 's consider some of the factors that determines whether full-film lubrication achieved. There requires that change in viscosity regardless of temperature tank capacity for every capability... Built with quality Parts, they have a bypass that protects the system this range is new! Built with quality Parts, they have a limited life to let fail! “ sweet spot ” requires informed design, therefore, viscosity ) can on... Excellent choice is one o f our flushing machines just use what viscosity in th when changing a hydraulic filter what should you do first... A regular basis is a typical Yanmar hydraulic fluid change via the access tri-bolted plate just under PTO! Up - but before the bypass valve opens replaceable cartridges ; you just remove the old one and pop the.

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