It appears to have been babied, looks in excellent condition, and has performed flawlessly up to this point. Feb 26, 2015 flyweight said: I'd start by replacing the transmission pump, then test for a high pressure internal leak. Losing function in D is unusual. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. where do i test the rear pump pressure and how much pressure should it have? 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 . It wasn't a lecture but now you tempted me. Sometimes the heat and dirt inside the engine mess up the cable connections. pressure (160 psi.) None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. After everything is reassembled, raise the rockshaft and let the engine run several minutes. :fing32: Ok, so yesterday (Monday) I had time to pull the filter and screen out. I just came from the dealership and as expected they don't have the part. The linkages and the bolts of the steering box may have worn out or come loose. It does recover after a few seconds but the problem arises again in the next clutch activation. You also could have problems in the control valve or internal linkage. Gerald J. The piston seal, the thermal relief valve, pressure valve or return valve. Is John Deere Type 303 fluid required or are there suitable substitutes? Thanks. It still has not arrived yet. You should now be able to see a hex shaft and if you start the tractor it should turn. Lower hitch all the way and then remove oil line going to piston cover(1st diagram. No warning or problems leading up to failure. in the Tractors forum followed by comments. Is maybe instead of spinning the hydrauilic pump, the coupling is just spinning on the stalled splined pump shaft? The 3rd reason behind a stiff steering wheel is the power steering being worn out. As a result, the PTO fails to engage. [CDATA[*/ Time spent looking for and tinkering together odd ball parts. WebI 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 "text": "Hydraulic pump is screaming. Refill with new new fluid and install new filter.7. "@type":"DiscussionForumPosting", Then, clean the inlet of the pump by using a tube brush and some soap water. I don't see any major leaks and it's not losing oil. @media(min-width:0px){#div-gpt-ad-gardenaider_com-leader-1-0-asloaded{max-width:300px!important;max-height:250px!important;}}if(typeof ez_ad_units != 'undefined'){ez_ad_units.push([[300,250],'gardenaider_com-leader-1','ezslot_11',104,'0','0'])};__ez_fad_position('div-gpt-ad-gardenaider_com-leader-1-0');When the tractor doesnt react to the ignition or starts really slow, its a serious problem. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V. For a better experience, please enable JavaScript in your browser before proceeding. The predetermined amount of hydraulic pressure of the John Deere 4020 is about 2200 PSI. That is just the price listed at JDParts. I have seen peices of o-rings or back-up rings end up in the 3pt. Any favorite salvage yards or web sites to check? A forum community dedicated to John Deere tractor owners and enthusiasts. "interactionStatistic": { I have a fix for older tractors but it doesn't apply to your tractor. even when it is wide open. Check your pressure at the couplers and see what you have. Inspect and clean screen and magnet in screen. This will usually reclaim the valve seat so that it will seal. Inspect filter 2. the steering and 3 point seems to work ok. the 3 point does chatter just a little bit. To free the clutch properly, follow the steps below: After plowing for 15-20 mins, your clutch should break free. 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. Then, raise the plow if you have it hitched. Any comment on how hard the pump should be to turn by hand? With coupling disconnected, run tractor and check for flow and pressure in main pump supply line from trans pump by cracking line coupling. Check for damages first, if its damaged, replace it. The charge pump stops turning & delivering oil to the main pump when the clutch is pressed down. loses power steering, power Leaks prevent the hydraulic system from working correctly. Turn both screws equally and adjust the pressure till you can see the fuel pump working. I think Bob is calling the Hydraulic pump is screaming. Inspect filter 2. }, It can be frustrating when operating the tractor. Secondly, a damaged steering box can cause this issue. I would repair the leak at Load control shaft to be sure shaft is ok. Also look in bore of transmission case when shaft is removed to be sure the fork that straddles shaft is not broken. Replace the battery with a new 12V battery. Any lower PSI can indicate a shortage of hydraulic pressure in the system. The 2nd reason behind this problem is a worn-out brake of the PTO. Posted 6/4/2023 18:32 (#10257031) Subject: JD 4020 Hydraulic Problems Northeastern Nebraska I put in a new hydraulic transmission pump last winter in my As a result, the fuel might not be pumped into the engine. Since the clutch is related to the hydraulic mechanism, a working filter is essential. After that, replace the PTO brake. You can avoid damaged and rusty linkages by doing this. 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. Thanks again for all the help. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Why are the plines so shallow in the coupling? For those where a pressure and flow test are appropriate its not necessary to take off the front pump coupling. I have a syncro shift that had problems at low idle but everything worked fine a high rpm. @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. [quote] Sorry buickanddeere, not meaning to ruffle any feathers, but I didn't see yours. ]. I can turn it, but not by hand. Where to start? You should now be able to see a hex shaft and if you start the tractor it should turn. My new 4020 has some hydraulic issues. 30-55 series non-powershift trans row-crop tractors have such a hex drive shaft for trans pump. If the hydraulic filters are clogged or too dirty, replace the filters. Then check hyd. Worn-out charge pumps are the first reason behind this problem. In fact I am retired and have no income other than investments. Lets see. We do have people around who think they should be able to purchase parts for a 1966 tractor at the price charged in 1966??? Can this tractor be driven safely with the hydraulic pump drive coupling removed? Follow the steps below: The 4020 John Deere model was popular because it had many special operators and front-end options. If its too low, add some more fluid to the tank. Sounds like you are on the right track getting her back in shape. 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. They have a John Deere 4020 which I just replaced the fuel injector pump in Augist 2011. Then, adjust the pressure of the fuel pump. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. I just wanted to make sure it wouldn't damage anything. Since the synchro and transmission both involve gears, they have the same causes and fixes. Have you tried changing the hydraulic filter? I work for a trucking company which also has farm tractors. 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 . But I'm sure them running it out of oil didn't help any. If there is, fix the leak by replacing the worn/damaged parts. Worn-out, damaged, and loose Game plan is: 1. Is John Deere Type 303 fluid required or are there suitable substitutes? Cultivation takes place at multiple levels due to the sloping terrain. Problem appeared instantly and loudly on last restart as soon as tractor cranked. The second reason for this problem is any loose bolts or cotter pins in the shifting mechanism. Value built has a significantly better price on the front pump. Flow from charge pump test depends on the version of the tractor. Check the splines at the front pump and coupling. Time to put a pressure gauge on there and start checking before throwing parts at it. We do have people around who think they should be able to purchase parts for a 1966 tractor at the price charged in 1966??? [/quote:07f01f12ab] [quote:07f01f12ab] Sorry buickanddeere, not meaning to ruffle any feathers, but I didn't see yours. The 3rd reason is a worn-out fuel filter. feel the cover where the thermal valve is located. Internal oil leakage can make the PTO slippery. Thanks, I'll give it a try. Problem turns out to be a stuck $9.99 issue. The pump is now clean and cavity-free, so the sound should be gone now. I also paid 25% more for HyGaurd fluid and a premium for JD motor oil. If your charge pump is worn out the main pump is probably always running a little short on oil, now when you step on the clutch the main pump runs out of oil almost immediately. Keep us up to date with what you find. Steering & brakes would be limited but could be done. I'd be mighty grateful for that shaft at that price from your JD dealer. Ouch! [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? ] The most common reason for this issue is a rusty clutch. I have way to many other things to do besides rebuild a valve. To clean the screen you must drain the fluid. Save my name, email, and website in this browser for the next time I comment. Posted 6/4/2023 22:13 (#10257387 - in reply to #10257031) Subject: RE: JD 4020 Hydraulic Problems. So does Shoup. Finally, check out the power steering. If they are clogged or too dirty or damaged, replace them. @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. To do that: The second solution is regarding freeing the stiff clutch. After that, inspect the area under the shift handle. I appreciate your help on this issue and your responses, but I don't think I needed a lecture. You may increase the number of bottom plows for this tractor. 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 . 4L60E Transmission Problems Troubleshooting And Solutions, Scotts Spreader Setting Chart (Achieve The Perfect Spread), John Deere 8430 Problems (All Reasons + Solutions), John Deere 7800 Problems (Reasons + Proven Solutions), 5 Common Allis Chalmers 180 Problems And Their Easy Fixes, John Deere 3720 Problems (Get Your Problems Fixed Now), John Deere 5603 Problems (A Troubleshooting Handbook), Sunflower Petals Falling Off? Are other hydraulic functions working normally? A valve with a leak will start to get warm in a few minutes. A parking cable longer than needed can actually eliminate the precision in parking. Not to brag but I posted the answer several hours previous to buck eye al. At last, the clutch pack might be damaged. "@type": "ImageObject", You may watch this video for some raw guidelines: Finally, take out the oil filters of your JD 4020. You should now be able to see a hex shaft and if you start the tractor it should turn. JD oil is a good idea. Less chance of trans damage by towing out of tow position. }, Yet, it gets concerning when it starts to happen regularly. If the pump is not working, rebuild it as soon as possible. loses power steering, power brakes,3 pt hitch and remote power within a few seconds of pushing the cluth in. If leak at load control shaft and raising/lowering problems started at same time, you could have a broken load control shaft. But won't that move the very junk away from the screen that you are wishing to find and remove? Good luck! Good luck! First, set the tractor to its highest gear. Is this the weak link like a shear pin? Is maybe instead of spinning the hydrauilic pump, the coupling is just spinning on the stalled splined pump shaft? My first thought is are you sure that you have a "closed center" valve on the loader, this can and will cause 'cavitation' problems, the first thing I would do is plug off the loader pressure oil supply and see if the 3 pt. If the starter has gone bad, replace the, Another reason for this problem is unadjusted clutch linkages. The Synchro-Range only has one filter. For those where a pressure and flow test are appropriate its not necessary to take off the front pump coupling. now the trans oil pressure gauge barely comes up. Sometimes, the PTO of a tractor successfully turns on but stays on and doesnt turn off. Firstly, the fuel pump might be damaged. Usually the rockshaft loses ability to lift in L position when linkage is worn or out of adjustment. Will anything be damaged if tractor is operated without pump running? 2. 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. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Have you really checked? Here's a website pertaining to your tractors hyd problem I learned about several yrs back from another tractor forum. JD oil is a good idea. filter that feeds oil to front pump. If the problem seems grave and none of the solutions work for you, consult a mechanic. Is normal tractor hydraulic fluid OK? Now does anyone know where I can find a drive shaft coupling (14 spine) for less than the $150 that John Deere wants? For a better experience, please enable JavaScript in your browser before proceeding. Have you really checked? Have a nice day! (previous owner said he had one installed in the screen when serviced a few years ago) 6. Still, you need to know the problems in detail to solve them. What works for the early tractor can be bad for the later tractor. It can be done in the nearest mechanical store. There are a couple of reasons for this. 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 "mainEntityOfPage": { Modern View Forum powered by phpBB 2001, 2005 phpBB Group. Steering & brakes would be limited but could be done. 7. Steering & brakes would be limited but could be done. Disconnect coupling and turn pump by hand to see if anything seems wrong there.3. pump drive coupler for stripping. First, you need to replace the PTO linkages of the tractor. Seems high as $#@% for that little piece, but maybe I'm just old and living in the past. Secondly, the pressure of the injector pump might be misadjusted. 7. For instance, tire sizes can be matched with the height of different crops to increase efficiency. 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. There are jackleg mechanics who wouldn't hesitate to weld the shafts together. Driving tractor to shop IMHO would better than towing it. We get people on here all the time, they take a wild guess and replace the front pump. "name": "Tigerpaw4020" "publisher": { I'd be mighty grateful for that shaft at that price from your JD dealer. Sometimes you can hear a squealing sound in the valve, most noticeable when you shut it off. 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. 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. buickanddeere said: (quoted from post at 17:36:56 04/17/09) Lets see. Valves are responsible for diverting the steering fluid into the steering cylinder. No steering, brakes, or lift. A sevice manuel would give the proper steps. That is just the price listed at JDParts. A figurine from this particular region is the symbol of the Medical Association of Lasithi. Turn the valve stem with the Allen wrench in the hole through the spool. Just in case I need to do this also. 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. It's less running around. If the bolts have become loose, tighten them firmly. This Extra Virgin Organic Olive Oil is officially certified as organic by the Bio Hellas Institute. John Deere and its logos are the registered trademarks of the John Deere Corporation. Less chance of trans damage by towing out of tow position. ;.). 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 . Time spent looking for and tinkering together odd ball parts. 3. Gerald J. John Deere 4020 hydraulic problem - PopC : 12/22/2014 20:51 RE: John Deere 4020 hydraulic problem - 40/20vision : 12/22/2014 21:49 RE: John Deere 4020 hydraulic problem - Von WC Ohio : 12/22/2014 22:03 RE: John Deere 4020 hydraulic problem - Gerald J. : 12/22/2014 22:08 RE: John Deere 4020 hydraulic problem - Check if theres any bleeding of oil in the PTO section. Plow raise would take all oil and you would have no or hard steering.No steering might run into something.Reset rockshaft valves and check seats in valve housing reset load and depth control.One more thing does hitch act up when in depth setting check before tear down. joe. Pray for good news somewhere along the way short of a new pump. Use of this Web site constitutes acceptance of our. In general, hydraulic pumps do not make an absurd amount of noise. As a result, the diesel hard starts. I have another question for the experts. After that, readjust the shifting rods of the mechanism itself. You can notice delayed response and weird noises coming from it if its damaged. If the nozzles are blocked or damaged in any way, replace them. Then be sure to shim the drawbar support so it has no side to side play. I KNEW what you meant, just thought I'd clarify it for those NOT familiar with these hydraulic systems. It takes a 8-10 long lever arm. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. pump drive coupler for stripping. Always start by changing hyd filter & cleaning sump screen as previously suggested. Finally, get rid of the remaining oil on the clutch. We get people on here all the time, they take a wild guess and replace the front pump. So the local JD dealer had to order the seal kit. I thought about that at first but all it doe's is create a vacuum and holds the oil from dropping out, you might have a little lift off as you start to pull the screen out but it all seems to stay there.. All Rights Reserved. I would start by pulling out the sump screen (drain oil first) to se if it is plugged. (quoted from post at 10:56:04 01/07/09) Test rockshaft for leak on piston cap it, All Rights Reserved. I appreciate and value your expert opinion, but as I stated i think you can deliver it without a lecture. [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? School Of Hard Knock. Modern View Forum powered by phpBB 2001, 2005 phpBB Group. Your email address will not be published. Posts: 12 Report to Moderator Posted: Mon May 26, 2008 4:27 pm Post subject: 4020 Hydraulic Problem My 1971 model 4020 J.D. Jan 10, 2004 Messages 1,431 Location CNY Tractor B2650, Just to make sure I'm not missing something. Ouch! This problem blocks the engine from a successful start. Which is the price of a two bottles of good rye whiskey and a couple cartons of smokes. Finally, inspect the control valve and the priority valve as well. [quote:07f01f12ab] Sorry buickanddeere, not meaning to ruffle any feathers, but I didn't see yours. Is better spent doing something that makes money. 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. When you have to push down harder than usual on the clutch, thats a stiff clutch issue. 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. But when this problem occurs, the pump can get loud! Then, check the rings and shaft linkages of the tractor. Is normal tractor hydraulic fluid OK?
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