Case 580 hydraulic relief valve I was ordering parts based on my Case 580B CK manual. It did this from the time I bought it and was tolerable. Investing in quality loader control valves and associated components guarantees that your CASE loader or backhoe operates at peak efficiency, reducing Jun 17, 2013 · Does anyone know where the relief valve is located on a 2002 case 580 super m backhoe? It is leaking between the spools on the loader control valve and someone told me to see if the relief valve is stuck. Willie mentioned the relief valve in the boom piston. There is some pressure release valves and other things. Sounds like a badly adjusted or damaged relief valve in the hydraulic system. This is especially true if you have "ghost movement"(actuate one circuit and another moves). 2 spool loader control valve, for models with pilot controls. Find Case 580 Super M Loader Backhoe for Sale . I have included a pic of the 2 spool & 3 spool types. Note: Not suitable for backhoes equipped with Pilot Controls. In this video I replace the O-rings and X-rings in a hydraulic valve body to eliminate hydraulic Jul 13, 2013 · I want to test my main relief pressure. So to my question, I took the hydraulic valve assembly off the backhoe, what parts would you replace if Burlington Installation Corp. The pump just sends fluid through the steering valve, and when you turn the steering wheel, steering fluid is routed to the steering cyl. Mar 22, 2023 · I have a Case 580K extendahoe back hoe where I am replacing hoses and seals in leaking hydraulic cylinders. The load checks are in the loader and backhoe control valve sections under the port relief valves. It is prone to being a mess. The valve poppet protrudes into the open center passage as illustrated in Figure 2. One thing you could do to prevent bucket drift down caused by faulty control valve would be install either a pilot operated check valve or pilot operated counterbalance valve at cylinder lines. Hydrauiic Pump Loader Conrol Valve Made by J. Case 580/590 Super M Backhoe Control Valve, Used, 6-Spool Transmission Hydraulic Control Only purpose of the spool seal is to keep the oil from leaking to the outside. tank remove it and plumb a air fitting with small ball valve to pressurize the tank (be sure and secure fill neck cap securely) you don't need much pressure only about 10-20 psi then start machine and work loader until it works. - can you confirm this is correct? The main reliefs are marked with the red circles & the power beyond fitting is in green. Mar 13, 2020 · Everything leaks off. The internal oring could be blown #26 below. This will cause a weak backhoe and loader plus the load will drift. 170 bar HYDRAULIC SYSTEM HYDRAULIC PUMP Pump 72 kW - 97 HP (580SR) Model Apr 18, 2018 · @Doug580l there's no need to dismantle the entire valve, simply remove the main relief cartridge from the loader control valve. Jan 2, 2018 · There should be 5 valves bolted together to create a stack of valves. The front bucket, outriggers, boom, everything. Thread starter gyman98; Start date Oct 10, 2018; G. Case . It is double acting and controlled by a toggle switch on the backhoe boom control lever. But after a couple days sitting, it looks better. Do not have to remove the valve, relieve pressure, unscrew the circuit relief, once out remove the load check plug under it along Fits Case: 580L, 580 Super L, 590 Super L ; Fits Case: 580M*, 580 Super M*, 590 Super M*, *Series I Only (Series I = Serial # JJG0xxxxxx). 5 gal. I have looked and the parts that may be needed to rebuild all the valves with reliefs and was wondering if anyone has replaced the whole control valve with an aftermarket one. These products often feature hydraulic piston assemblies, cylinder tubes (barrels), and complete seal kits designed to maintain optimal hydraulic Aug 19, 2016 · Other manufacturers use a different system to keep violent stops at the end of a swing from ripping off the swing tower. The 580K features a Case-built backhoe valve with all backhoe sections Iowa, in comparison to the Case 580 Super E Dec 2, 2017 · First off, for anyone searching for drawings or part numbers on the 580B backhoe, use the parts. I completed all the O-ring changes on the internal parts of the boom and dipper spools, and the last thing was to change the wiper and o-ring under it. I had the swing cylinders rebuilt and all of the valves o-ringed Feb 20, 2020 · I'm rebuilding the loader control valve on my 1980 580C. CALL or TEXT (800) 909-7060 Case 580C Hydraulic Valve, P/N G34897 for sale. Only exception is when the valve has circuit relief valves plugged into it, and they are doing the leaking. I. Nov 23, 2015 · The only hydraulic leaks were at the top of these spools where they connect with the linkage to the operating levers. Thread starter Rooster87; Start date Nov 18, 2019; Prev. Otherwise the hoe works fine - sometimes although the left swing cylinder is 'weak' and requires slight operation of one of the other controls to get power to it. At idle in neutral/4th gear pressure at test port is 100 psi. These high-quality parts are engineered to enhance the performance and reliability of hydraulic steering systems in various machinery, ensuring efficient maneuverability on the job site. S. Installation 2 . Fits Case 580 Super M Series I (Before Serial Number N4C300000) Fits Case 590 Super M Series I (Before Serial Number N4C300000) Fits models with a standard dipper stick. Replaces Case Part # 1346107C2. Fits Case 580 Super M Series II and III (After Serial # N4C304000). It may reset. The seals on the load checks in the control valve are blown on a few or all of the circuits. We have trouble with the backhoe main boom dropping. Key Points. l. Dec 22, 2015 · Parked my 580K for the winter last year. 1st picture shows hole (larger hole, RH side) on rod side where oil has access to the relief valve end orifice. Case Backhoe Boom Cylinder Hydraulic Relief Valve - USA Made Fits Model 580K, 580 Super K, 580 Super L, 580 Super M, 590 Turbo, 590 Super L, 590 Super M Description Relief Valve, Boom Cylinder Piston Aug 5, 2019 · The main relief valve is located at the loader control valve. Positive hold “float”and “return-to-dig”. Sometimes they have a bit of trash stuck in them, you can usually see this by removing the valve & inspecting. Fits Case Loader Landscaper: 570NXT. Sectional 6, 7 or 8-spool, open-center parallel circuits with regeneration CA-P-580C TLB JJ. Available now at Broken Tractor. If the flow is bypassed, say by a stuck open relief, then pressure is not created. See the image below. Replace Part Number: 129842A2, 119644A3, 129842A1, 282618A1, RV5-4440-30. 15. Case Loader Control Valve Made by Parker Hannifin Steering Relief Valve and Quick Disconnect Couplings Three Point Hitch Control Valves Cylinders Backhoe Control Valve Choices include both new and remanufactured OEM boom cylinders compatible with popular models such as the Case 580 Super L, 580 Super M, 580SL, and 580SM, as well as the 580K and 590SL series. Oct 26, 2011 · You have what I call the ghostys. May 18, 2019 · 14. I checked the Internet for Cross and Cessna control valves for Case backhoes but with no luck. Everything worked great before we parked it. May 12, 2015 · The control valve in my 580 SE is leaking out of most of its orifices. Flow and pressure tests are the ONLY way you will get to the cause of what is going on. Stumbled upon this forum & need center control valve. I don't think the insides have seen daylight in 40 years. Choices are to Case backhoe control valves used and rebuilt for Case 580C, 580D, 580 Super E, 580K, 580 Super K, 580L, 580 Super L, 580M, 580 Super M, 590 Turbo, 590 Super L, 590 Super M, and many other Case backhoes. The Orbital Steering Valve category encompasses a vital selection of hydraulic steering components designed specifically for Case backhoe models. The diagram showed Aug 5, 2019 · Darn thing started working perfect! Relief valve was a bit high, so I tweaked it down to 2200 and I guess that bucket lift spindle out of position was allowing the fluid bypass, preventing the pump from being able to generate adequate pressure. Used Case 580 SM Hydraulic Valve, P/N 86987460 for sale, from a 2005 Case 580 SM Heavy Equipment Unit, Loader / Back Hoe. PO BOX 9102 Wichita, KS 67277 316. So, I was hoping to just remove the 6 spool shafts and replace the two Orings on each one. Coleman Equipment - Bonner Springs 24000 W. There's no noticeable struggle or noise when you push the loader down or pull HYDRAULIC SYSTEM Front mounted,positive displacement, gear-type tandem. Key Points: Condition: New OEM Old Stock. When i pull the second boom lever it drops slightly more or faster. The link is to page 12. Changed hydraulic fluid and all filters. The Case Hydraulic Pressure Relief Valve (part 129842A2) is another vital addition, providing safety measures by regulating system pressure and preventing potential damage to hydraulic systems. So far I have been successful with the stabilizer cylinder and extendahoe cylinder/hoses. Nov 1, 2024 · Here are more pictures, of the piston itself, as well as where the relief is installed. Part Number: 353814A3. The problem is that the main loader will not lift unless the bucket is curled back. 00 Add to Cart Mar 23, 2020 · Hey Steve Pressurizing the hydraulic tank after changing oil depends on model on 580L series when you remove the battery box cover you'll see a plug in the back of hyd. I then curled the dipper, raised the boom, then straightened the dipper. It also wont apply any down force. Recent rebuild, checked regulator valve in control valve, replaced 0-rings. casece website, click find parts by model, search "35 backhoe". It would take days for it to leak off enough that the boom would eventually touch the ground. They are a special neoprene O-ring that is only available at Case dealers, item 14 is the O-ring part# D33686, you'll need eight of them. Hydraulic lock-up can be caused by various factors, including a faulty relief valve, contaminated hydraulic fluid, or a problem with the hydraulic pump. At the bottom of the page is the index to the entire book. Point being the backhoe does not have a seperate relief valve and operates on the main relief near the loader controll valve. Troubleshooting, Flowmeter Tests, and Pressure Checks Cleaning the Hydraulic System Hydraulic Pump Loader Control Valve Made by J . Parts are supposed to be here tomorrow. My guess is the o rings are gone on the load hold valve. There are a number of different hydraulic valve/filter configurations - a machine serial number will be required to be specific. It is controlled with a momentary contact thumb button & rate of flow can be selected, Max I think is 35 GPM if I recall. Designed for models with a standard dipper stick. You may want take a look at it. Aug 13, 2008 · The machine is a 1972 Case 580b backhoe. Motor is run'n strong. Now I am be told it is the relief valve or a unloader valve. Jan 1, 2012 · Interesting ingenuity n175h. Maintenance. This genuine replacement part is designed to regulate pressure efficiently, preventing system overload and ensuring smooth operation. Looking at for a stuck relief is about the only thing that will all of a sudden create low pressure. Ensure operational safety with our USA-made hydraulic pressure relief valve for Case backhoe boom cylinders, fitting models 580K to 590 Super M. Jul 24, 2005 · A relief valve relieves pressure at a predetermined pressure so that the oil system, hydraulic or lube, is not damaged. Also, the relief pressure should be almost the same at idle (a bit lower) & 2000 rpm. Last night I ordered O-rings to rebuild my stabilizer actuator valve as it's leaking from the top of the spools. Mar 27, 2022 · My case 1979 case 580 ck keeps blowing power shuttle pump seal. Sectional 2 or 3-spool with single lever control for lift, tilt and auxiliary hydraulics, positive hold float and return-to-dig Backhoe flow @ rated engine rpm 38 gpm @ 3000 psi (144 L/min @ 207 bar) Backhoe control valve . gyman98 Well-Known Member. 4, RV54440304 For a 1971 CK 580 Case backhoe I have a stuck relief valve. The system main relief is located to one side of the loader control valve and inline with the spools for the lift and bucket control. Do you have a test gauge to 3000psi? The main relief valve, located in the loader control valve, controls hoe pressure as well. 31. But if you open the swing valve all the way up, it frees the engine. All of the hydraulics seem a little weak but get slightly worse when hot. 00 Each Quantity of 1 available as of 10/13/2022 - SC: D34977: Used Hydraulic Tank Cover Home / Parts / Case 580 Super E (580SE) Loader Backhoes. I just built a hydraulic thumb attachment and installed on the backhoe - It worked Jun 27, 2016 · In a possible costly learning curve during replacing the o-rings, I chipped the flange on the dipper spool valve body between the o-ring and wiper seal (800) 853-2651 SHOP NOW Jan 2, 2021 · It is simply a fitting with a tail piece that seals an internal oil gallery that sends pressure to the backhoe control valve or in your case, the three point linkage valve. 1-way flow auxiliary hydraulics: 1-way flow hydraulic valve is equipped w/ an adjustable LS relief valve to control attachment pressure and a 6 position flow control selector If the whole tractor is weak, I'd check the main relief for the whole machine (its in the loader control valve). Jan 18, 2012 · Loader control valve. This Mar 16, 2019 · If you go to partstore. Case Loader Control Valve Made by Parker Hannifin Steering Relief Valve and Quick Jun 25, 2016 · Greetings! Case 580C backhoe valve control spool. CCaassee Parts Manual 580C Tractor, Loader & Backhoe Volume 1 of 2 THIS IS A MANUAL PRODUCED BYJENSALES INC. II. Based on the information provided, it seems like you are experiencing a hydraulic lock-up issue with your Case 580 Super M Backhoe's hydraulic system. There are two different loader valves a Parker and a Case valve you will have to determine which you have. Also we took out about 12 gallon of oil and it will only take 5 and the Nov 2, 2023 · Good day all! Cold in Central Alabama (for here) at 26 degrees F! Brrr. LOADER HYDRAULIC PUMP CAPACITY 28. It should hold constant pressure & not fluctuate. Lubricate the flow valve seal (4) and the flow valve (3) with clean hydraulic oil. I've read the service manual and searched online for any information on what is acceptable wear on the main May 18, 2019 · Main Relief Valve The main relief valve is located at the inlet of the control valve. No change. Keep in mind though, that brass ball valve is not rated for hydraulic pressure and can burst. Do I have to remove the pump to fix this or can I fix it Case 580 SM Hydraulic Valve, P/N 87433240 for sale. Fits Case 580M Series II and III (After Serial # N4C303000). Aug 21, 2023 · The relief valve pressure of the Case 580 Super M Loader Backhoe is 3050 psi. 16. 43rd St / Bonner Springs, KS Local Number: (913) 422-3040 Store Used Relief Valve Assembly fits Case IH MX215 MX245 MX275 7130 7140 7150 7230 7240 7250 8930 8940 8950 fits Case 770 870 970 1070 1090 1170 1175 $176. This plug requires a special tool that is described in the service manual to remove. Enjoy our hassle-free online checkout or call to speak to an expert. Loader Control Valve Made by Parker Hannifin Steering Relief Valve and Quick Disconnect Couplings Three Point Hitch Control Valves . Part #: 1958028C1 Replacement Piston Relief Valve for Case 580K & 580 Super K Backhoe Loader Fits Boom Cylinder Piston (P/N 1346018C2) Skip to content FREE U. I didn't see a K5500 valve. The spool seals were leaking and most of my power beyond o-ring was gone. Between the work port or auxiliary relief valves and the load check is a plug. Apr 9, 2023 · Resorting to the nuclear option for fixing the Ford 555 hydraulicsWelcome to Man Time! Case 680E Left/Driver Hydraulic Cylinder - Core | P/N G34821 Please Call Dec 10, 2022 · Also, I notice when I hear that sound like a relief valve lifting my hydraulic oil starts to look really bad in the sight glass - emulsified. I drained some out to check it and it looks kind of bad even though I had changed it last year and only has about 100 hrs on it. Load Check Valves Secondary Relief Valves Crossover Relief Valves Assembling Valve Sections U. Hydraulic Specifications. Everything would hardly move/no power. It is designed for a wide range of applications, including construction, excavation, and material handling. He said he replaced the relief valve and steering cyl. Ensure optimal hydraulic system performance with the OEM Case Construction Pressure Relief Valve #129842A2. You will also find this link to to a lot of good information about the 580K's. Checked relief valve and blew out cooling system, replaced oil. Now, I'm curious. #T, VDP 22 Jun 20, 2011 · (quoted from post at 11:01:37 06/20/11) Steering quit working so we put a new hand pump on the drive shaft on it. 2nd picture shows where relief screws in (FYI takes an 11/16" socket with a thin wall to fit). CASE OR IT’S SUCCESSORS. 1; 2; First Prev 2 of 2 How would I know if the relief valve is bad cushioning” valve for zero-wag swing control. After about one hour of work it blew a steering hydraulic line going to the control valve. to replace them once you pressure/ blow the crud and clean the valve. 3050 psi. Fits Case Backhoe: 580M Series 3 (After Serial # N8C500000). Weight K9100/K9200 Features. New hydraulic filter. Sep 2, 2015 · Need to check the main relief pressure Bowen. Servicing the Control Valve Removal Disassembly Assembly . Oct 31, 2016 · Even tho the hydraulic filter was changed the oil flow may still be restricted if the screen on the side of the hydraulic pump wasn't cleaned. Willie Case 580K (LOADER BACKHOES), spare parts for Case 580K - online catalog | 777parts. Pressure Relief Control Valve 129842A2 for CASE 570LXT 570MXT 40XT 580SL 60XT 70XT 590SL 75XT 580SM 85XT 90XT 95XT. CASE 580N TRACTOR LOADER BACKHOE Service Repair Workshop Manual provides step-by Case Backhoe 580K: I have a Case 1988 580 k backhoe w/leak Dan | 17+ yrs. Case Loader Control Valve Made by Parker Hannifin Steering Relief Valve and Quick Disconnect Couplings Three Point Hitch Control Valves Cylinders Backhoe Control Valve Jun 19, 2011 · The unit at the bottom of the steering shaft is the steering valve, which provides fluid to the steering cyl. Up it went! Why didn't the boom secondary relief open again and everything settle to the ground? My service manual does not show a hydraulic flow diagram. Cylinders . Install a new gasket (2) on the flow valve adapter (1). Basic control valve is closed center, w/ circuits Cooling system:in parallel w/ a post-compensated, flow sharing feature for simultaneous operation of all circuits. Mar 23, 2020 · The main relief valve is a definite possibility and would be something to check. com BACKHOE SWING CYLINDER AND SWING SEQUENCE VALVE HYDRAULIC CIRCUIT Nov 14, 2017 · The manual provides descriptions of the CEC 2 system components including the transmission, electronic control unit, shift selector, throttle position sensor, speed sensors, electro-hydraulic valve components, and wiring harnesses. I believe the return line is not pressurized, & runs to the filter, then Hydraulic Specifications, Maintenance, Troubleshooting, Flowmeter Tests, and Pressure Checks Cleaning the Hydraulic System . When using the boom valve it will try to swing. 4448 Case 580SK Hydraulic Valve, P/N 1980440C1 for sale. (just weeping). There is something internal going on in with those valves that has caused you to loose 3 functions. Thanks for any help. SHIPPING on Seal Kit & Hose Orders over $150! Nov 8, 2019 · When I test main relief I hold the load for longer 3-4 seconds. The hydraulic oil cooler charge relief . May 5, 2022 · I wonder if this diagram applies to 580 Super N with pilot controls? I will crawl under again, but I remember the hydraulic pump supplying directly the loader, backhoe & hammer valves. I read in other post it is closer to $1000 range. Please call us at (800) 909-7060 with your machine and will give you the price and availability for the valve that fits your Case Backhoe. section. Im a first time spool 're-O-ringer' and I may have done some damage. Jun 6, 2020 · Yes just unscrew spring caps and the spools will come out. This means a spear shaped pilot plunger controls the pressure at which the valve opens and permits a gradual opening of the relief valve. I would suggest resealing the port reliefs and load checks. Case 580 SM Hydraulic Valve, P/N 87421836 for sale. 2515 Fax 316. Specifications: 6-Spool valve. Front Auxilliary Hydraulic Diverter Kit Includes relief block for loader Cross tube install Fits all 570/580/590 Models Nov 14, 2017 · This is the Highly Detailed factory service repair manual for theCASE 580N TRACTOR LOADER BACKHOE, this Service Manual has detailed illustrations as well as step by step instructions,It is 100 percents complete and intact. Backhoe Control Valve Nov 14, 2011 · Joined Jun 30, 2021 Messages 1,989 Location Whidbey Island, WA Tractor Yanmar YM2310, Honda H5013, Case 580 CK, Ford 9N Mar 16, 2020 · Used Hydraulic Tank Cover/Cap: Case 850 1150 680CK 680B 680C 780: $100. casece. It takes around 2 hrs. The front and rear hydraulics work fine. How do I reinstall the boom cylinder piston onto Used Case 580 SM Hydraulic Valve, P/N 87434768 for sale, from a 2005 Case 580 SM Heavy Equipment Unit, Loader / Back Hoe. I moved it about 75 feet with oil spraying and I Excavators Case 580 ck Operator's Manual Pressure relief valve adjustment . they are specifically written for the do-it-yourself-er as well as the experienced mechanic. Troubleshooting, removal, disassembly, inspection and installation procedures, and complete specifications and torque references can be found in most sections. Any help would be appreciated. Unidirectional auxiliary hydraulics: Unidirectional hydraulic valve is equipped w/ an adjustable LS relief valve to control attachment Oct 10, 2018 · Case 580b hydraulic problems. Install the flow valve (3) in the bore in the master cylinder. Once apart, I observed the boom piston has a relief value. The pressure is created by flow. . I also removed what I think is the relief valve Jan 4, 2017 · Hi all, I picked up a low hour 94 Case 580 Super K for a decent price but it has some issues. The flow valve (3) must be centered in the bore of the master cylinder. Part Number: 87555499; Weight: 115 lbs. If a valve was worn so bad that cylinders won't stay in place, it's usually not repairable. It had rubbed though from contact with the frame. The Case 580 Super M Loader Backhoe is a versatile and powerful machine manufactured by Case. My sense is that Case's solution is somewhat primitive. Designed to fit: 6-Spool, 7-Spool, and 8-Spool Backhoe Control Valves. It's a nasty job, but you have to repair it. Mine has the foot swing if it makes a difference Dec 28, 2019 · Yesterday I had enough of the ongoing upgrades to run the 580 for a bit to make some repairs on the lane. com and look up 580se and you will find the valve fitting I'm talking about on page 392 and 406 under the hyd. shop and field experience with all major brands of heavy equipment and trucks - 1995 WyoTech graduate. Hydraulic System Fluid Capacity. Apr 2, 2012 · He said if your valve is a "Case" valve and not one made by Continental the problem is a pretty simple fix. Then we changed steering cylinders on it. I know it is on the loader valve but where do I tee in to test. Jul 9, 2021 · I have a Case 580 SM and a BIC (Burlington Installations) auxilliary hydraulic kit was already installed when I bought it. You need a hyd. 10 11-16 Sep 3, 2010 · I have a 1996 580SL. Roll the bucket back till it stops to dead head and it should read what pressure? I called my case dealer and wanted to reseal the rear control valve and quoted $130 for all the O rings. You need to get them from your case dealer. I would think you have a hydraulic pump problem also. WITHOUT THE AUTHORIZATION OF J. 7 spool backhoe control valve, for models with pilot valves and extendahoe. 23,486 Satisfied Customers This professional grade service manual with over 3,000 pages total covers service procedures for Case 580N, 580SN and 590SN tier 3 backhoes. If your relief valve is adjustable, the adjustment should be item 2 on the drawing Tinkerer sent you. Customer: Good Afternoon, We have a Case 580 Super M. Aug 6, 2015 · That system has a Case built valve with load holds under all the secondary relief valves in the valve sections. If selected circuits on the hoe are weak, others strong, I'd suspect the load checks in the hoe control valve. HYDRAULICS Hydraulic Specifications. Condition: Good Used. Dont know why it keeps blowing seal. The main relief valve is pilot operated. You should see the obstruction caught in the lower poppet porting. The valve is a 2 spool parallel port made by Parker Hannifin, Model# D 45040, Manufacturer's part # 03033044, ser. Relief Valve Pressure. Are these something you have access too? If you know where the relief valve is, try taping it gently with a hammer while the machine is off. Do you think it necessary to take any of the other shafts, relief valves apart? Mar 21, 2018 · 90% of the hoses blew out. pressure test kit and the service manual is helpful. Feb 24, 2024 · I have a 1979 Case 580c backhoe that is leaking oil at the top end of the backhoe control valves. AND METRIC TORQUE SPECIFICATIONS (Hydraulic Fittings) Operating Principles 3 POINT HITCH CONTROL VALVE Specifications . Jan 9, 2020 · Case 580 Super L hydraulic issue. Why no pressure testing. Now it leaks off while Find a reliable control valve for Case 580SL and 590SL Backhoes. Will try to find the part # for the orings off the Case site. Contains rings for comprehensive resealing of backhoe control valves. The swing sequence valve gets to a point, then slows oil flow to the cylinders. There is O Rings between these valve sections that tend to leak but those are not your problem. It also includes information on diagnostic codes, checking for wiring issues, and the troubleshooting process. Not just one 1 outrigger, boom or front bucket. You may need to push in the poppet with a blunt screwdriver or pin punch, remove the culprit & refit the valve. Jan 30, 2012 · As a long time owner of a 580 C I may have some ideas. Heavy-duty oil cool-er. Also when you swing the boom either direction, it bogs the engine. We resealed the cylinder and the valve bank and checked all the port relief valves which is all good. My problem is with the boom cylinder. 6-Spool Complete Backhoe Hydraulic Control Valve Assembly. Fits Case Backhoe: 590 Super M Series 3 (After Serial # N8C508500). The parts listing only shows a Parker valve, so I'm guessing you have a Cessna backhoe control valve. Compatibility: Designed for machines with FOOT SWING backhoe controls and a STANDARD dipper stick. Should be the first result. 5 gpm @ 2200 rpm @ 3000 psi 31 gpm @ 2350 rpm @ 100 psi LOADER CONTROL VALVE 2 or 3-spool sectional valve with single lever control for lift,tilt and auxiliary hydraulics. 3 3 4 4 4-6 7-10 . Pump is rear of the transmission & seems to T to each hydraulic valve. Please help? Jun 3, 2023 · I have a 2014 Case 580 Super N with extend a hoe & a hydraulic hammer circuit plumbed to the dipper. It has a cap nut that needs to be removed and jam nuts that are loosened to make an adjustment of the setting screw. Apr 11, 2015 · They are located under the circuit relief valves on the backhoe control valve. 00 Each Quantity of 1 available as of 7/26/2022 - SC: L51620: Used Hydraulic Filter Bypass Valve/ Hydraulic Pressure Relief Valve: Case 850 *some* 1150 *some* 680C 780 36 Backhoe: $100. Basic control valve is closed center, w/ circuits in parallel w/ a post-compensated, flow sharing feature for simultaneous operation of all circuits. Fired it up this spring & hydraulics were super slow. If the relief pressure is different each time you apply load - it would indicate a problem with the relief valve. Key Features: Spools: 3-spool valve. The backhoe on a 580C is an attachment to the machine as many were also made as forklifts, trenchers, cable plows or LL for landscape loader. 943. . Hydraulic valve body rebuild for a 1968 Case 580 CK Backhoe. Fits Case Backhoe: 580 Super M Series 3 (After Serial # N8C504000). I would also go ahead and replace the check valve O-rings while you're at it, they are located under the circuit relief valves in each section. mhz gccx hbbpvts wxbg pzfts luvr gkpah bnrgzx jqngi hcrhr vgux znmh igegc jubyqvau fnvpvm