Any comment on how hard the pump should be to turn by hand? Finally, inspect the control valve and the priority valve as well. If leak at load control shaft and raising/lowering problems started at same time, you could have a broken load control shaft. Gerald J. I just wanted to make sure it wouldn't damage anything. Leaks prevent the hydraulic system from working correctly. I bought all JD filters today for oil, fuel, and hydraulics, because they are the same or maybe even less than NAPA, and I had to make the trip for something else. Flat Threaded Nested. "name": "Yesterday's Tractor Co.", It creates a cavity which later creates whining noises. Follow the steps mentioned below: Observe the pump for sound. Is John Deere Type 303 fluid required or are there suitable substitutes? 4. Couple of other questions: 1. We do have people around who think they should be able to purchase parts for a 1966 tractor at the price charged in 1966??? document.write(['horizonoliveoil','gmail.com'].join('@'))/*]]>*/ , [emailprotected] 0030-28410-26084, 0030-6972236082. You can have good trans. Driving tractor to shop IMHO would better than towing it. After starting the tractor, you may notice the front wheel turning left/right on its own. I cleaned the screen, blew it out with air and re-installed it. Always consult equipment operator's manual and follow safety instructions before operating or servicing any tractor or equipment, or attempting any task. Where to start? The clutch may slip stiff when the. pump drive coupler for stripping. Thanks also. The second reason for this problem is any loose bolts or cotter pins in the shifting mechanism. Viewing a thread - JD 4020 Hydraulic Problems Then, raise the plow if you have it hitched. pump drive coupler for stripping. Come join the discussion about specifications, modifications, troubleshooting, maintenance, and more! Good luck! The balance of the tractor is off when this happens. Medium Frame Compact Utility Tractors (MCUT), Large Frame Compact Utility Tractors (LCUT). You can tell if it is by removing the top link braket on the back of the tranny case and removing the plug that is behind it. and have a bad front pump, or high pressure internal leak that can cause the loader to 'chater'. Save my name, email, and website in this browser for the next time I comment. TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. [quote:07f01f12ab] Sorry buickanddeere, not meaning to ruffle any feathers, but I didn't see yours. Secondly, the pressure of the injector pump might be misadjusted. 4020 hydraulic problems - Yesterday's Tractors I bought all JD filters today for oil, fuel, and hydraulics, because they are the same or maybe even less than NAPA, and I had to make the trip for something else. now the trans oil pressure gauge barely comes up. It wasn't a lecture but now you tempted me. Will I have any even minimal steering or brakes? 3. A valve with a leak will start to get warm in a few minutes. It's less running around. Is better spent doing something that makes money. The last cause of this problem is a worn-out synchronizer. Inspect and clean screen and magnet in screen. 4. Without minimum pressure, the fuel cant run through the injector lines. A forum community dedicated to John Deere tractor owners and enthusiasts. Flow from charge pump test depends on the version of the tractor. The thermal valve is located under a small plug in valve housing cover. Is it Bad News for this JD 4020?? | My Tractor Forum But hey, I am here to help you get to the solutions. Towing a JD 4020 without putting either type of trans(syncro-range or powershift) in "TOW" is sure death for the trans. This can increase the complexity of the tractor control. Steering & brakes would be limited but could be done. Start solving this issue by checking the valve. I will not destroy a tractor for a few dollars, but I will also be thrifty where I deem it acceptable. [/quote:07f01f12ab] [quote:07f01f12ab] Sorry buickanddeere, not meaning to ruffle any feathers, but I didn't see yours. Is better spent doing something that makes money. But its fairly robust, the main problem being a cracked case that shows up with oil running down from it. That runs the return oil back into the cir cut feeding the pump rather than into the sump first.That little reservoir in front runs out real fast when you push the clutch otherwise.When its screwed in the return helps feed the piston pump a stream of returning oil. You should now be able to see a hex shaft and if you start the tractor it should turn. Driving tractor to shop IMHO would better than towing it. Any additional ideas? It may not display this or other websites correctly. The predetermined amount of hydraulic pressure of the John Deere 4020 is about 2200 PSI. [CDATA[*/ Crude hack jobs as such are often seen at auction sales and salvage yards. Horizon elite organic olive oil is produced in the Cretan village of Kalamafka in the southern foothills of the Diktian mountain range, located 12km north of Ierapetra and 24km west of Agios Nikolaos. (previous owner said he had one installed in the screen when serviced a few years ago)6. In fact I am retired and have no income other than investments. 4020 Hydraulic Problem - Yesterday's Tractors Thanks also. Have you really checked? So does Shoup. I have another question for the experts. That would maybe cause a decent "scream" as you put it. Sometimes leaving tractor idleing for moderate periods, sometimes shutting off and restarting. Pump may be starving for oil, transfer pump in the transmission may be defunct. I will not destroy a tractor for a few dollars, but I will also be thrifty where I deem it acceptable. Thanks guys. Remove any blockages from it. Ouch! Also, it had several customization options. You can see the park cable there. Secondly, the shaft linkages and rings might be worn-out. Loss of power steering upon pressing clutch, Problem 1: Loss of Power Steering Upon Pressing Clutch, In general, hydraulic pumps do not make an absurd amount of. the funny part is that the power shift does not slip and the steering and brakes work great. ( Is it necessary to measure this flow and pressure or sufficient to just see that some exists? ) The parts fit and it doesn't cost extra in the long run considering lost production time. What works for the early tractor can be bad for the later tractor. Personally I just go to Mother Deere's counter and get what is required. Keep us up to date with what you find. Start solving this problem by inspecting your charge pump. The first reason for this problem is the worn-out shift linkages. I ve got a 71 4020 synchro range and I just changed the main hydraulic pump. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. I think that your tractor has a check valve but its up high at the top of the front oil cooler/reservoir. J. I appreciate and value your expert opinion, but as I stated i think you can deliver it without a lecture. (previous owner said he had one installed in the screen when serviced a few years ago) 6. joe. ( Is it necessary to measure this flow and pressure or sufficient to just see that some exists? It is about 2 inches around and you can use a 1/2 breaker bar to get it loose(if it seems real tight give it a smack with a hammer, trust me it works) If that was ok I would then see if the charge pump was turning. The combination of dry soil, the climate and the local micro climate here creates the ideal growing conditions for the development of healthy olive trees. Order or borrow a JD tech manual. I just wanted to make sure it wouldn't damage anything. Is better spent doing something that makes money. Posts: 12 Report to Moderator Posted: Mon May 26, 2008 4:27 pm Post subject: 4020 Hydraulic Problem My 1971 model 4020 J.D. For a better experience, please enable JavaScript in your browser before proceeding. I can turn it, but not by hand. Since the synchro and transmission both involve gears, they have the same causes and fixes. could the trans hyd pump be going bad? If the screen in the bottom of the tranny is clean, take apart and clean the valve body device near the oil filter. Afterward, flush the pump with some low-viscosity fluid. SM-2039 is the right manual for that tractor. When you loose your hydraulics, remove the side cover next to the clutch to access the pto valve and feel the housing, hot is bad, leaking internally. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. But I couldn't see any thing, 10 gallons of oil later and i could finally see the level. (previous owner said he had one installed in the screen when serviced a few years ago) 6. 4020 hydraulic problems - John Deere Forum Drain and inspect fluid. 8. I recently purchased the tractor and have no sure history on it, however previous owner (70+ year old retired school teacher/tinkerer with good reputation, but likes his distilled spirits a little too much) said that tractor was completely serviced including replacing all fluids and filters when he was cleaning it up to sell. Defected nozzles act as a wall for the fuel. [quote="buck eye al"](reply to post at 23:05:50 04/13/09) [/quote Is maybe instead of spinning the hydrauilic pump, the coupling is just spinning on the stalled splined pump shaft? Disconnect coupling and turn pump by hand to see if anything seems wrong there.3. The parts fit and it doesn't cost extra in the long run considering lost production time. Deere 4020 hydraulic issue - TractorByNet Since the synchro and transmission both involve gears, they have the same causes and fixes. [quote="buck eye al"](reply to post at 23:05:50 04/13/09) [/quote Is maybe instead of spinning the hydrauilic pump, the coupling is just spinning on the stalled splined pump shaft? NCIA. i do have a joystick on it. JavaScript is disabled. When has the trans filter and screen been changed/cleaned, respectively? It is a lot closer to the local NAPA and oil suppliers than to the closest JD dealership. JD oil is a good idea. If the front pumpvibration dampener and drive is ok. Then perhaps a broken/stuck relief valve, stroke valve or diversion valve? 4020 Hydraulic Problem - John Deere Forum - Yesterday's Tractors The Synchro-Range only has one filter. Its a very common reason for other problems in the John Deere 4020 as well. Thanks guys. [quote= buck eye al ](reply to post at 23:05:50 04/13/09) [/quote Is maybe instead of spinning the hydrauilic pump, the coupling is just spinning on the stalled splined pump shaft? ] Check the splines at the front pump and coupling. Which is the price of a two bottles of good rye whiskey and a couple cartons of smokes. But the only fix is to replace them. I don't see any major leaks and it's not losing oil. I would start by pulling out the sump screen (drain oil first) to se if it is plugged. What checks should I make to troubleshoot and in what order, preferably anything with tractor off first Modern View Forum powered by phpBB 2001, 2005 phpBB Group. Is normal tractor hydraulic fluid OK? Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. You may use baking soda and lemon to clean it. I got a 4020 with a 148 loader. In turn, the cables fail to supply power and the engine starts really slow. It takes a 8-10 long lever arm. If the hydraulic filters are clogged or too dirty, replace the filters. 3. and then time the the gallons that go into the bucket, the flow needs to be measured with the operating pressure. @media(min-width:0px){#div-gpt-ad-gardenaider_com-medrectangle-3-0-asloaded{max-width:300px!important;max-height:250px!important;}}if(typeof ez_ad_units != 'undefined'){ez_ad_units.push([[300,250],'gardenaider_com-medrectangle-3','ezslot_4',115,'0','0'])};__ez_fad_position('div-gpt-ad-gardenaider_com-medrectangle-3-0'); The John Deere 4020 may experience problems regarding the hydraulic, clutch, steering, powershift, and PTO mechanisms. To solve this issue, clean the inlet of the pump itself. I can turn it, but not by hand. Always start by changing hyd filter & cleaning sump screen as previously suggested. Another reason for this problem is unadjusted clutch linkages. Try charging it and starting the engine again. works better, you can check the trans. It is a lot closer to the local NAPA and oil suppliers than to the closest JD dealership. If the pump is not working, rebuild it as soon as possible. Problem 2: Difficulties in Shifting Gears. You can walk into a local dealer which is still in business.And have the brand new part inhand within 24hrs for only $150.00 . With coupling disconnected, run tractor and check for flow and pressure in main pump supply line from trans pump by cracking line coupling. JavaScript is disabled. What checks should I make to troubleshoot and in what order, preferably anything with tractor off first since it sounds like it is destroying itself when cranked. Thanks. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. Why not check the pressure potential of the pump by using a hyd gage and see if the relief is set right and relieving at the set pressure. 30-55 series non-powershift trans row-crop tractors have such a hex drive shaft for trans pump. It can be hard to shift gears when this issue exists. Yet, it gets concerning when it starts to happen regularly. Check for damages first, if its damaged, replace it. When has the trans filter and screen been changed/cleaned, respectively. But now it slips real bad. It is about 2 inches around and you can use a 1/2 breaker bar to get it loose(if it seems real tight give it a smack with a hammer, trust me it works) If that was ok I would then see if the charge pump was turning. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V. Refill with new new fluid and install new filter. Thirdly, the nozzles of the injector might be defective. Driving tractor to shop IMHO would better than towing it. I don't understand that line of thinking. Lower hitch all the way and then remove oil line going to piston cover(1st diagram. Less chance of trans damage by towing out of tow position. I have a John Deere 4020 that evidently has a mind of its own; the three point hitch will fall down with the lever in the up position, if it takes a notion it will come back up or it may not come back up at all. Is this the weak link like a shear pin? Gerald J. pump up front. We get people on here all the time, they take a wild guess and replace the front pump. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. "mainEntityOfPage": { If the fuel doesnt flow through the lines, replace them. Hydraulic problems can be a hard thing to fix. You can tell if it is by removing the top link braket on the back of the tranny case and removing the plug that is behind it. After everything is reassembled, raise the rockshaft and let the engine run several minutes. filter that feeds oil to front pump. This Extra Virgin Organic Olive Oil is officially certified as organic by the Bio Hellas Institute. I'd be mighty grateful for that shaft at that price from your JD dealer. Historical data and artifacts housed in the British Museum of London show that in ancient times, this place was a place of worship of Asclepius. In general, hydraulic pumps do not make an absurd amount of noise. 4020 hydraulic problem - John Deere Forum - Yesterday's Tractors Feb 26, 2015 flyweight said: I'd start by replacing the transmission pump, then test for a high pressure internal leak. That is just the price listed at JDParts. I fixed the linkage problem and everything worked great. @media(min-width:0px){#div-gpt-ad-gardenaider_com-mobile-leaderboard-2-0-asloaded{max-width:250px!important;max-height:250px!important;}}if(typeof ez_ad_units != 'undefined'){ez_ad_units.push([[250,250],'gardenaider_com-mobile-leaderboard-2','ezslot_18',106,'0','0'])};__ez_fad_position('div-gpt-ad-gardenaider_com-mobile-leaderboard-2-0');Sometimes when you park your JD 4020, the wheels may still rotate. The other things that help is to replace the shaft if has any wear and also replace the bushings and front pin in drawbar support. The clutch may slip stiff when the clutch linkages arent adjusted properly. If I can save a few dollars on this I have more to spend on other. During this problem, youll lose the power steering and power brakes upon pressing the clutch. The 2nd reason behind this problem is bad cable connections. What checks should I make to troubleshoot and in what order, preferably anything with tractor off first since it sounds like it is destroying itself when cranked. If the tractors charge pump isnt working, replace it. Next question How hard should it be to turn the hydraulic pump by hand? That would maybe cause a decent scream as you put it. Secondly, worn-out hydraulic filters can cause this issue. This usually ends up delivering a jerky feeling to the driver. Hydraulic pump is screaming. In the LD position, it raises normally, but when you lower it to a set position, it does not maintain that position, but slowly bleeds off. Then be sure to shim the drawbar support so it has no side to side play. However, the speed will be affected if you do so. All Rights Reserved. If you see any damaged cables, replace that specific wire. You may watch this video for some raw guidelines: Finally, take out the oil filters of your JD 4020. See if you detect any heat build up there. Viewing a thread - John Deere 4020 hydraulic problem oil pressure on the clutch operating valve on the left side of the tractor , the ports are marked, if you look closely. "url": "https://www.yesterdaystractors.com/graphics/smllogo.png", Unfortunately the seat in the valve cover is usually worn also. The charge pump stops turning & delivering oil to the main pump when the clutch is pressed down. WebThe other day, it suddenly lost all hydraulics. JD oil is a good idea. You should now be able to see a hex shaft and if you start the tractor it should turn. Start off by fixing the internal leak. It started a couple years ago where after start up you would have to wait 10-15 seconds before any steering or you could do anything with the loader. Due to this problem, the JD 4020 might feel inconsistent while in reverse gear. JavaScript is disabled. Time spent looking for and tinkering together odd ball parts. These produce the highest quality of tasty olives. Now does anyone know where I can find a drive shaft coupling (14 spine) for less than the $150 that John Deere wants? But when this problem occurs, the pump can get loud! Our 1968 4020 seems to lose prime on the hydraulics after it has been sitting for a while. then remove the four bolts holding the cover on. What works for the early tractor can be bad for the later tractor. OK it seems we have a terminology problem here. This problem blocks the engine from a successful start. John Deere wants $2200 for a rebuilt one. Replace the battery with a new 12V battery. At times, the PTO of the JD 4020 might not engage. or do any of you guys think i could have something else going bad? Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. If the front pumpvibration dampener and drive is ok. Then perhaps a broken/stuck relief valve, stroke valve or diversion valve? When the rear pressure drops the prioity valve closes, then instead of a low pressure oil going to the 3pt,there is 'no' pressure'' with the 3pt valve ball held open by a piece of back-up ring or what ever it 'will' let the hitch drop then the pressure can recover for a moment and open the priority valve again then the hitch can try to surge up again..I have had this happen before the first time it was cofuseing..Yes the priority valve's function is to maintain steering and brakes when there is a system pressure drop, the piece of back-up ring was causeing my pressure drop On these old tractors I check 1 system press,2 linkage, 3 piston o-ring, 4 3pt valve, when there is 3pt trouble. You can tell if it is by removing the top link braket on the back of the tranny case and removing the plug that is behind it. Just askin. Cultivation takes place at multiple levels due to the sloping terrain. A 43 year old machine with probably 10,000hr which is similar to a road vehicle with 500,000miles. A 43 year old machine with probably 10,000hr which is similar to a road vehicle with 500,000miles. For the first solution, you have to get rid of the rust on the clutch. "headline":"John Deere 4020 hydraulic problem. It's less running around. }, { pump drive coupler for stripping. this tractor is a power shift. Is maybe instead of spinning the hydrauilic pump, the coupling is just spinning on the stalled splined pump shaft? Jan 10, 2004 Messages 1,431 Location CNY Tractor B2650, Just to make sure I'm not missing something. To free the clutch properly, follow the steps below: After plowing for 15-20 mins, your clutch should break free. Problem turns out to be a stuck $9.99 issue. First, shut down the JD 4020, remove the pump power source, and drain the entire pump. John Deere and its logos are the registered trademarks of the John Deere Corporation. Is normal tractor hydraulic fluid OK? My new 4020 has some hydraulic issues. Ray Tellin, 4020 syncro-range trans pumps do not have hex shaft you referred to in your post. I don't even know if it is available. John Deere 4020 hydraulic problem If the problem seems grave and none of the solutions work for you, consult a mechanic. Finally, replace the synchronizer itself if its too damaged. Crude hack jobs as such are often seen at auction sales and salvage yards. Gerald J. Not in bad shape for it's age. 5. Posted: Mon Apr 30, 2012 9:36 am Post subject: 4020 hydraulic problems. 30-55 series non-powershift trans row-crop tractors have such a hex drive shaft for trans pump. "userInteractionCount": 22 The region boasts 300 days of sunshine annually, and its altitude ensures only small changes in temperate throughout the year (mild winters and cool summers). After that, fix the clogging tank issue by bleeding the tank. loses power steering, power Thanks again for all the help. Failure to adjust the shift mechanism can directly affect the shifting of the gears. Where to start? I was told this is caused by an internal high pressure hydralic leak. John Deere and its logos are the registered trademarks of the John Deere Corporation. So does Shoup. I have seen peices of o-rings or back-up rings end up in the 3pt. OEM DOES NOT cost twice as much. All Rights Reserved. Jun 7, 2023. Also if you let it go too long you will eventually have the same problems as the JD 4020. He said it only had a few hours on the complete service, and to just plan the next service intervals as if it had 10 hours on it when I got it, and I have less than 50 hours on it. John Deere 4030 need to buy rebuilt water pump casting number R52008 serial 012730. @media(min-width:0px){#div-gpt-ad-gardenaider_com-box-4-0-asloaded{max-width:250px!important;max-height:250px!important;}}if(typeof ez_ad_units != 'undefined'){ez_ad_units.push([[250,250],'gardenaider_com-box-4','ezslot_9',102,'0','0'])};__ez_fad_position('div-gpt-ad-gardenaider_com-box-4-0');If there are other objects blocking the mechanism of the hydraulic pump, it can make noises. WebRe: 4020 Hydraulic Problem in reply to Bobl1958, 09-23-2021 18:07:32 Simple test is remove FEL control valve return line from ported filter cover. Any additional ideas? When the charge pump at the back of your tractor fails to work, the clutch malfunctions simultaneously. Horizon olive oil is produced in the traditional way in the village of Kalamafka, in Lasithi, Crete. Do you always buy OEM at twice the price? The first thing you must do to fix this issue is clean the exhaust pipe. Time to put a pressure gauge on there and start checking before throwing parts at it. Sometimes, the PTO of a tractor successfully turns on but stays on and doesnt turn off. They can fix it for you in exchange for a small fee. It appears to have been babied, looks in excellent condition, and has performed flawlessly up to this point. I say all this to say your problem could be really simple to fix. It looks like the coupling had the splines machined out of it, but I'm sure it must have done that when it spun. If there is, fix the leak by replacing the worn/damaged parts. Thanks. . Order or borrow a JD tech manual. Pray for good news somewhere along the way short of a new pump. When the fuel fails to get to the injector, the engine has ignition issues. Thanks, I'll give it a try. loses power steering, power brakes,3 pt hitch and remote power within a few seconds of pushing the cluth in. Now it can take a full minute before any hydraulics will work. I appreciate your help on this issue and your responses, but I don't think I needed a lecture. Less chance of trans damage by towing out of tow position. At an altitude of 500 meters, Kalamafka has lush green vegetation and rich sources of spring water, and extensive olive cultivation in the fertile soils between the rock formations that characterize the entire landscape. Enjoy banner ad-free browsing with My Tractor Forum Plus. But I'm sure them running it out of oil didn't help any. Less chance of trans damage by towing out of tow position. WebReport to Moderator. Not to brag but I posted the answer several hours previous to buck eye al. Sometimes the heat and dirt inside the engine mess up the cable connections. The John Deere 4020 may experience problems regarding the hydraulic, clutch, steering, powershift, and PTO mechanisms. Pray for good news somewhere along the way short of a new pump. Tx Jim, I'm a fast learner so last night I read a post about a JD 4400 series trans issue and figured the 4020 can't be much different. I prefer JD parts if they are competitive, but will not hesitate to purchase used parts or aftermarket if there is no concern about quality or compatibility. On day of failure, just idleing around property with light trailor hooked to hitch bar on 3pt hitch arms, loading limbs and light debris, starting and stopping, occasionally raisng lift to dump trailor. If the front pumpvibration dampener and drive is ok. Then perhaps a broken/stuck relief valve, stroke valve or diversion valve? It is about 2 inches around and you can use a 1/2 breaker bar to get it loose(if it seems real tight give it a smack with a hammer, trust me it works) If that was ok I would then see if the charge pump was turning. :fing32: Ok, so yesterday (Monday) I had time to pull the filter and screen out. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V. Worn-out, damaged, and loose components and linkages are the majority of reasons for the problems. I think its loosing prime getting air in the line, the steering doesn't have any problems. So even if you have the required amount of steering fluid, this may arise for the valve. buickanddeere said: (quoted from post at 17:36:56 04/17/09) Lets see. It is about 2 inches around and you can use a 1/2 breaker bar to get it loose(if it seems real tight give it a smack with a hammer, trust me it works) If that was ok I would then see if the charge pump was turning. The Fora platform includes forum software by XenForo. But as soon as it does the shop will jump on rebuilding the valve. Welcome! It takes a 8-10 long lever arm. Always start by changing hyd filter & cleaning sump screen as previously suggested. This natural terrace-like cultivation facilitates the drainage of water as well as exposing each individual tree better to the sun and light. You can walk into a local dealer which is still in business.And have the brand new part inhand within 24hrs for only $150.00 . Reinstall coupling and check pressure and flow from main pump. No warning or problems leading up to failure. in the Tractors forum followed by comments. Ray Tellin, 4020 syncro-range trans pumps do not have hex shaft you referred to in your post. These problems can make your experience with the tractor dull. Time spent looking for and tinkering together odd ball parts.