John deere 4840 problems they produced. Sep 11, 2016 #1 We replaced the hydraulic pump, changed oil, cleaned out screen, the hydraulic filter was collapsed. Engine runs good and nothing makes irregular noise. Wiring problems happen very often behind the right battery where the cab harness connectors are. Maybe we must get a big square baler , then there wont be any problems. Does Not Include Quick Couplers - Must Reuse Originals John Deere 4430 lost radio and air conditioning clutch doesn't kick in Jump to page : I went thru this on the 4840, just dirty connections. I currently have all forward gears and they are working just fine. How to fix an issue? John Deere 4840 Power: Drawbar (claimed) 157 hp 117. Itchy: Posted 7/17/2014 08:45 (#3972496 - in reply to #3972463) Subject: RE: 4840 Deere, good bad ugly: Jd 4040 hyd. Jump to Latest 7. john deere 4840 charging system isnt working. Has lost hydraulic pressure. Like anything get a Posted 1/20/2010 21:47 (#1033068) Subject: John Deere 4440 not starting: Ford County, IL: Went to take my 4440 out of the shop tonight and it will not start. Have changed all filters and did a complete diagnosis using the tech manual and guage set. Whenever you see a 4840 "for sale" , you had better assume the power shift trans is on it's last leg. 4400. clh: Posted 4/17/2013 20:23 (#3043141 4840↓ 1978-1982. CJBFarms: Posted 12 There is no comparison from the eight-speed to the 16 speed powershift in a John Deere. 34,943 Satisfied Customers. The first Service Schedule Parts for a John Deere 4840 Tractor & Parts List. I am new to this so bare with me! I have a 4640 jd with the 8 speed powershift. engine problems) long before the one on the left is the new bolt according to deere. Buy a versatile, bread and butter tractors! Old tractors of that 30-40-50 series had problems. they have two separate power supplies and you may have problem with one. Posted 4/30/2013 00:40 (#3071135 - in reply to #3071130) Subject: Re: John Deere 4840 electrical issue? <p>30 to 40 year old oil soaked patched and spliced wiring harness. Customer: I have a john deere 4840 when you put your foot on the brakes or use the spool leaver the rear three point hitch drops what would cause this ? Wayne | 34 years experiance as engine rebuild and problems. JD had full power shift and their only problem would be transmission coupler disc would give up at times. I told him (first of all to stop getting raped at jd) And then to go get the compressor I recommended. Help me please find prime cause of trouble. Jump to Latest 13K views 7 replies 6 participants last post by grego Jul 13, 2010. Sell the 730, replace with 1850 Oliver or 3010-4020 if you have to stay deere. I think the low pressure is 10 to 30, so we should be in the range. I found the problem where I had someone work on the tractor in the summer - he had wire harness issues and I told him to make it work as I was out of town at the time. 8 kW: PTO (tested) 180. Viewing A Thread I've got a 78 John Deere 4840 tractor. Aowner Member. our products, or our website nor are we sponsored I'm helping a friend out to try and figure out why his 4850 MFWD is running hot. It starts 1 out of ten tries. I have a 4840 that the transmission is giving me issues on. The waterpump started leaking externally when we looked at it, so now it has a freshly rebuilt waterpump. Thread starter Aowner; Start date Feb 19, 2012; A. PTO works good, checked the hydraulic pressure with PTO running, checked the pressure john deere 4840 charging problem. {Mega $$$ to fix right. I had one from 7-8000 hours. The John Deere 4840 is a powerful tractor known for its durability and reliability. com: DZFtech Mover Parts (2 Ignition Keys AR51481 for John Deere Loader Grader Tractor Backhoe & Equipment R45361 AT195302 AT145929 : Patio, Lawn & Garden www. if you have a pinout of the relay and understand how it works you could just 2840 John Deere Hydraulic Problem. Other than the waterpump problem, is neighbor has a 4840 that they have changed the 10si alt. Help . Understanding John Deere 4240 Wiring Schematic for Expérienced DIYers. 400 hours later the transmission went out, so rebuilt the transmission Having troubles with a 4840 JD power shift transmission. It was under warranty but it is quite a job as they were everywhere. I just heard of an 8370R that had brake problems of same Until the introduction of the 50 Series Soundgards in 1983, the 4840 was the largest rowcrop tractor Deere produced. 99% of the time, A/C work is pretty simple, its usually 1 of 3 things, low on freon, clogged Years ago[35] we had a new 4840 and it did basically the same thing. JD had IH outclassed in hp war since 1966 from 5020 then 6030 then 4840. is there a problem? I don't lose fan pressure just the hoses jump and I suspect it may be causing the fan motor to leak/seep slightly. Joined Dec 26, 2008 Found a JD 4840 with transmisson problems. meskie 33 Replies. Had to be completely cleaned out ,new linings installed and still going strong. At this point, I think I have a loose wire in the ignition setup or my starter is going out. No problems just kept it greased. Thread starter Michael Eversole; Start date Oct 23, 2009; M. I HAVE A DEERE 4840 WITH A LARGE INTERNAL HYDRAULIC OIL LEAK 4840 - 12650, 4840 - 12810, 4440 - 14350, IH 1456- 7600, Farmall 806 - 3100, McCormick 400 - 2100 Upon the plains of hesitation bleach the bones of countless millions, who when on the dawn of victory paused to rest and there resting died. That was a very tough motor, a little tougher then the design of the 4850 with the way they designed the pistons. Understanding these common problems and knowing how to address them can help you maintain the tractor’s efficiency and prolong its lifespan. If that's the problem, it's a PIA to change, and you will invent some new words. problem in reply to Ducknose Bob, 02-15-2006 22:55:45 Bob,does your loader operate off of scv's or an independent valve? If ind. J. there was so much manure/mud/grime crammed up under there that the relay was all corroded to junk. John Deere Tractors Case IH Planting & Tillage Crop Production. They had a I just bought a 2001 1770 16 rn vac planter w/2 vacs,i plan to put this on a jd 4840 tractor,some people are telling me this will not have enough hyds to run the planter . Diesel will not crank over. Working on 4840 and evidently working on multiple issues. The cam on the outside of the tractor, i need to have it go 30 degrees past all of the cable adjustment to get it to engage. Jump to Latest 13K views 9 replies 5 participants last post by madcow Mar 16, 2015. Had a 4840 and 4840 Deere, good bad ugly Jump to page : 1 Now viewing page 1 [50 messages per page] View previous thread:: View next thread Forums List-> Machinery Talk: Second biggest gripe is not enough gears which could be a problem on the chopper. The tractor will turn left fine, and to the right fine until the wheels get straight, and the wheels will not turn to the right of straight. 5210. We got a 8630 and thats when we found out about updates as it seemed there wasnt anything that didnt get changed and even the 8650 wasnt that great thats when we switched to IH steiger and Common Problems and Recommendations for the John Deere 4840. 4or five times. When I bought the tractor it had just had the brakes on the rear replaced and the rear No Page Found - Garden Aider Re: 4840 john deere hyd. Thread starter wec101; Start date Jan 20, 2009; Help Support SkidSteer Forum: W. 4840 vs 1586 4840 had them covered all the way. I have the top cover off and the paw works. I heard maybe a low side quad pack, is there such a thing. Should switch off and on with the key switch. It's definitely not overloaded. Inspect and refit. The valve gets worn and can make pump put out poor performance. We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. Farrier1 New User. I?ve definitely got some type of leakage on the high side of the main pump, which process of elimination should figure out by blocking off SCVs, and I?m somewhat concerned that the hydraulic seat could be a source as it goes all the way up and won?t adjust. Prior to the current planter, I used a 12 row semi-mounted John Deere planter and the only hydraulic demand was raising/lowering, markers, and folding. JD has heating problems taken care of buy then. Changed that and it made no difference (expensive). usually they will continue to drive in certain gears if one clutch pack fails. they are installing a new delco this time. until reservoir is in front of radiator is If problem persists after filter change and sump screen clean, and it will not move in any gear, then you definitely need to check some pressures to try and identify a leak or possible transmission pump worn out. you can get an electric destroke solenoid from an 8850 tractor, the point of de-stroking is for starting aid. What can I do? Engine valves out of adjustment. John Deere 4840 problems. Understanding common issues and having troubleshooting techniques can help resolve these problems and Macon, IL: Good tractor. Poor engine performance. It is unusual to lose every gear. products, or our website nor are we sponsored by them. I Posted 5/13/2010 10:03 (#1197637 - in reply to #1197619) Subject: Re: John Deere 4840 tractor engine life Soutwest Ks. I never understood why the 4840 was only produced with the 8-speed powershift transmission. However a 4840 does basically have the same planetaty setup as a 4955, and it is heavier than a 4755. they begin to overcharge and bulge out the batteries. My 4640 seemed noticeably slower with the hydraulic functions than a prior used 4630. 6220 I have a 1979 JD 4840. By clicking “Accept”, you consent to the use of ALL the cookies. 9 gal, Posted 11/27/2013 08:32 (#3473353 - in reply to #3473303) Subject: Re: John Deere 4650 and 4850 tractors: Central Arkansas: Don't buy one withe the "Z" front end MFWD. I have to kill the engine, then restart it in neutral for it to go back into gear. I have replaced the relay and done some other troubleshooting with battery. Jump to Latest The exact problem my father had with his stock 4840 with Firestone 38 inch radials when all four were filled with fluid so he had the weight to make the tires hold the ground. John Deere 4840. However, like any machine, it can experience wiring problems over time. jpeg) Attachments nc IA: When I got my head bolt kit on my 4840, in the box was instructions with all the different types of head bolts and torque sequences. Its more comparable to a 4840 than a 4640 if your going to try Common Issues and Troubleshooting Techniques for Wiring Problems in John Deere 4840 . The John Deere 4840 tractor is powered by a John Deere 7 WE recently bought a used 4840. p. Does anyone have a wiring diagram for a JD 4840? Went up from 4840. Allis Chalmers; Case & David Brown; Farmall & International John Deere Tractors Discussion Forum: We had 4840 and 6030 at same time and the cab seemed to be the difference Neither one had any problems just not enough traction for the 250 h. Jun 20, 2017 / JD 4240 Charging sysm not JD 4840, Deere 5075e, 450j, Cat D4k2, Kobelco 160, Volvo EC140el, deere 310, komatsu D31px22, IH 1486, MF 135, MHF TO35 I cleared them with air and the problem still persists. JCB Forum John Deere Forum Kubota Forum Mahindra Forum. Aug 3, 2021 #1 I got a 1978 John Deere 4640 Powershift with hydraulic front wheele drive. See this everyday. Tx Jim Amazon. Sell the 8N, replace with 600 or 800 Ford, I have a 4840 that the park paw wont go alll the way into park. I had looked those up on John deere parts listing. I?ve definitely got some type of leakage on the high side of the It is a common problem on those tractors for the torsional dampener to come apart and tractor not move. John Deere and its logos are the JOHN DEERE 4840 TRACTOR. The tractor has had hydraulic problems in the past and they seem to be getting worse. Good news is you can easily service your machine yourself using a John Deere maintenance kit or service kits or by getting the specific John Deere part needed to keep your John Deere mower or tractor running for a long If I remember right, the price was not terrible ( by Deere standards). He was far from alone, this was a common problem, which actually led to the 42 inch tires coming along when they did. In my mind, the Quad-Range transmission would have been a 40 series Deere hydraulics Jump to page : 1 Now viewing page 1 Even make hoses jump when #3 is in float for roading etc. Fuel pump not working. With step-by-step instructions, clear diagrams, and troubleshooting tips, you’ll have the confidence and knowledge to tackle any electrical problem with your John Deere tractor. John Deere 4840 Parts Diagram: A Complete Guide for Maintenance and Repairs. These tractors routinely bring UDS$25,000 or more at auction, with low-hour and well maintained models going for even more. They are supposed to be held on by a snapring but this one was missing or something. Hooked battery charger up to starter and still didn't get anything. Recently I discovered the damage on my JD 4840. Posted 8/16/2017 13:58 (#6190832 - in reply to #6178842) Subject: RE: Hydraulic problems 4840 I was able to repair by removing the destroke valve from underneath the pump. Oours is an older model so the control is a foot rocker connected to a cable. The steering wheel gets hard and won't turn right anymore once the wheels are straight. John Deere 4840 Problems. 4600. After You price the repair kit, pay the shop rate (unless You give it a try), Then have to take it out twice, all the cleanup, You may be happier with a new one. Freeman370. It is a quad shift and I believe they said the problem is between 4th and 5th gears. In respect in the series 4640 vs 4840 , 4755 vs 4955 etc. Broken parking brake on JD 4840 Jump to page : 1 Now viewing page 1 [50 messages per page] View previous thread:: View next thread Forums List-> Machinery Talk: Message format Can someone tell me where to start looking for the problem? Thanks : braunt01: Posted 6/7/2009 08:40 (#735375 - in reply to #735363) Subject: Re: Broken parking The 55 series had a few problems but that was the first series deere that had all the electrical dash and sensors on the motors. 63 hp 134. Only thing close in the john deere manuel was a C-3 clutch pack. Could do without the electronic 3pt but its nice to slow down the drop with heavy stuff. Thread starter gunnargt95; Start date Aug 3, 2021; G. How does one keep the 3 point from rubbing the tires? Other than putting in a block of wood on the arm somehow how do most of you solve this problem? Thanks in advance for all comments. Bought a 4840 8 years ago or so with 8200 hours on it. Feb 19, 2012 #1 The control valve on our 4840 for the aux. , that we use for hauling silage wagons down the road,That shifts hard through all the gears, going Our problems started when one of the cones in the transmission filter covers stuck to a filter and was not noticed. 190 posts · Joined 2009 Add to quote; Only show this user #1 · Apr 20, 2010. I wired the lights up separately, placed them on a new 30 amp CB and John Deere 4840. With this tractor you will learn to love it if you get it. B. com It fits a ton of models. Shifted into 8th (high) gear and started slowing in speed while I've been doing alot of spraying with my jd 4840 and have noticed today while moving down the road, 8 gear doesn't want to pull the hills and when I down shifted to 7 it was lacking Explore the John Deere 4840 tractor specs, common problems, and essential maintenance tips for optimal performance. SHOP NOW. If you jack the front end off the ground the wheels turn full lock left to John Deere 4840 Maintenance: Engine oil and filters, transmission/hydraulic fluid and filter, service intervals and capacities, replacement part numbers. John Deere 4250 MWFD Hydraulics won’t work. Start with a test light then A friend of mine kept taking his 4840 to JD to get his a/c redone (more than once) and it cost him 2800 the 2nd time and still didn't fix the problem. When it comes to maintaining and repairing your John Deere 4840 tractor, having a comprehensive parts diagram is essential. The 49 has similar power just mfwd and 15 spd trans. Please help GM Guy - 8/5/2024 00:41 Buy the 4840, pocket the extra that would have otherwise been blown on the 6030, or hearing aids for the 45/4620. } In general, these tractors were worked hard and put up wet for many years. Production: Manufacturer: John Deere Row-Crop tractor: Built in Waterloo, Iowa, USA: Original price: $70,800 (1983 2WD ) Tractors 105 to 190 HP published in 1984, by John Deere: Row-Crop Tractors So, if you own or operate a John Deere 4840, make sure to keep a copy of the parts diagram handy for all your maintenance and repair needs. Any experiences on a John Deere 4840? What will it do with a 13ft offset disc? in this thread in this sub-forum in the entire site. Save Share John Deere Tractors Case IH Planting & Tillage Crop Production. I have a john deere 4840. Throw in rusty ground connections and maybe a missing ground wire on a cab mount too. It was the brake linings and they evidently had linings that came apart plugging all the hydraulics. John deere 4840 shifting hard. gunnargt95 New User. mdnelson86 See John Deere 4840 incl Horsepower, Weight, Specs, Problems, Price & More | Expert Reviewed. the one on the right is my old bolt. I will move and drive down the road. 5 volts the pressure gauge we put a john deere tip right onto the gauge with no hose, then you can plug it into each side of the scv to test leak up, leak down and main system pressure. For any such tractor, it’s mandatory to study the function and position of each wire. Contact an authorized service center. Farmer Brown: Posted 4/17/2010 15:17 (#1165291 - in reply to #1165290) I bought a 2007 4840 , parked it this winter and the drive control arm seem to work real hard, checked the dipstick at the back of the machine and nothing on it, its only goes dn the neck about 2 inchs, anyway what type and brand of fluid should I use, I did not get a manual and of course its a weekend so dealer is closed, I did see some specs online said it holds 11. I used it a weel ago for a post auger and it worked fine. Tell me what could be the malfunction? You used an incorrect type of fuel. Does Not Include Quick Couplers - Must Reuse Originals A friend of mine kept taking his 4840 to JD to get his a/c redone (more than once) and it cost him 2800 the 2nd time and still didn't fix the problem. problem in reply to Den 1947, 08-26-2006 11:22:53 The first thing I'd do is check the sump screen, then change the filters. 2 kW: Drawbar (tested) 151. there is no need to destroke a running tractor manually since the pump destrokes itself. Billville2024 49 Replies. If I hold the clutch in and shift though gears all gears work as they should. If destroking and operating the pump doesn't clear up the problem a diagnostic procedure needs to be done to verify the transmission John Deere 4840 Help Jump to page : 1 Now viewing page 1 [50 messages per page] View previous thread:: View next thread Forums List-> Machinery Talk: Message format It is a common problem on those tractors for the torsional dampener to come apart and tractor not move. </p> Edited by KTA 4/30/2013 00:44: Posted 2/26/2012 22:26 (#2254063 - in reply to #2253318) Subject: Re: John Deere 4040 problems: Zabcikville, TX: Worked for a guy that had a 4840 do the same thing, fought it for years and it drove me insane. If i let out on the clutch while in any gear it I have a 4840. Edited by cheesecurd 8/26/2016 21:23 (image. It appears as though my shaft/cam in not properly indexed. swapped it out with a new one and it solved the problem. Diesel cranks but will not start. While your John Deere machine is certainly built with quality parts, they have a limited life. We added more refrigerant bring the pressure up to 20. Wrong fuel injection pump timing. 9K views 11 replies 4 participants last post by fordtrucksrule7 Apr 22, 2010. This model was manufactured between 1978 and 1982. The John Deere 4840 has retained its resale value very well. a 4840 ought to handle the tasks you want to do ok . I have a 4020 powershift and when it starts to do this I change them We are looking at a John Deere 4755 mfwd powershift. 21 hp 112. Shop Now: TRACTOR PARTS. I want to thank y'all for helping solve this problem,,we were getting stumped to a point with this deal. Field wire is not getting power. 1 post · Joined 2015 Add to quote; Only show this user #1 · Mar 6, 2015. 530farmboy Discussion starter. 1 kW: PTO (claimed) 180 hp 134. The inside tires are set in close to the cab. Problems. Pulled out onto the road and started through the gears. Any of you ever had to deal (800) 853-2651. Jump to Latest A forum community dedicated to John Deere tractor owners and enthusiasts. attempted to start once and now it does nothing. Massey Ferguson Talk New Holland Forum Valtra Forum Yanmar Forum. PTO works good, checked the hydraulic pressure with PTO running, checked the pressure 2840 John Deere Hydraulic Problem. A. John Deere Air conditioner help Jump to page : 1 Now viewing page 1 [50 messages per page] View previous thread:: View next thread Is the compressor running? There are many variables, a set of gauges would help diagnose the problem as well. While the John Deere 4840 tractor is celebrated for its performance and durability, like any piece of machinery, it is not without its issues. We lifted the cab and unhooked the cable and the cable/rocker move freely. It's pulling a 15 shank JD chisel in 7th gear. Come join the discussion about towing, PTO’s, reviews, attachments, modifications, What are the most likely problems and what should I look for? mcfarm: Posted 4/16/2013 09:28 (#3039292 - in reply to #3039284) Subject: Re: JD 4640 good and bad: the 4840 is a better choice--final planetary drives are stronger otherwise very similar. not sure if this will solve the problem but some things to try are to change the trans/hyd oil filters. Michael Eversole New User. No problems for first 10 minutes then after it warms up it pops out of gear and goes into neutral. John Deere 6030 vs 4840. Posted 12/11/2017 07:41 (#6420961 - in reply to #6419349) Subject: RE: 4850 John Deere: south texas: Most likely the debris is near the load We have not had a problem with them, most of the complaints is like any model tractor you will have complaints on them all minor major, all tractors have pros and cons , we like the new deeres we have had our issues but we worked through them in the past and will in the future. Jimsw Discussion starter. You will NOT gain enough in the hydraulic capability, even if the 4755 were new, and the planter will be the problem. john deere 4840 Working on 4840 and evidently working on multiple issues. Only real non-maintenance work I did on it for 8 years was air conditioner and one shifting fork-which we fixed through cab floor instead of splitting. Recently I have been having trouble with the tractor not starting. amazon. John Deere 5075E John Deere 8310R John Deere 4960 John Deere 4840 John Deere 8630 John Deere 4630 IH Case 485. any ideas as to what is causing this,by the way,my ford 841 with a 10si on it starting overcharging last week I have a JD 4840 split due to grinding when the PTO was on. Other wise the 4755 is superior to the 46. The PTO shaft bearing in the clutch housing was all busted up and the PTO gear on the shaft and lower idler gear with the brake were ruined. If it is $600 for new, or $50 for kit plus $150 to rebuild, New is a bargain if it fixes the problem. John Deere 4640 Hydraulic problems. The alternator is in good shape charging at about 14. whtbaron 50 Replies. Thermo-King repair and trouble shooting. TxJim I know you can answer this Q it's been 18 yr since I was with Deere, But those 4840 short of OH with the newer kit for higher compression , I remember we would send the pumps off and they would change some thing in the fuel delivery and we would advance the timing about 1 or 2 degrees and they would start alot better but would roll smoke Jd 4840 light issues. Save Share Reply Quote Like. hydraulics has stuck. The 4840 is a 180 HP tractor. Deere6: Posted 1/10/2017 06:50 This thing had problems with the C1 & C2 clutch, the input planetary, the rear planetary pack, the PTO clutch, the PTO brake, the MFWD clutch, the reduction gear train, brakes are shot, and a bearing out of the trans pump Hello I have 2640 john deere with unknown hours. The 3-point jerks and shakes very badly when lifted (at any rpm), and if I leave it over night with the 3-point lifted, it has dropped when i Thanks for the pics. They are called boat anchors by John Deere techs and the only good thing about them is the tilt up hood. 206 posts · Joined 2012 Add to quote; Only show this user Whether you’re looking to fix a simple wiring issue or tackle a more complex electrical problem, this ultimate guide to John Deere tractor wiring diagrams will be your go-to resource. 7 kW: The New Iron Horses published in 1978, by John Deere: Tractors 90 to 180 HP published in 1979, by John Deere: Tractors 90, 110, 130, 155, 180 HP published in 1979, by John Deere 1978 John Deere 4840 steering problems. John Deere Tractor Manual 2040 2510 2520 2240 2440 2630 2640 4040 4240 4440 4640 4840. Remove the seat, and you will find the valve that controls the rate of drop. these tend to give lots of problems. It runs up to the white part of the gauge right before it gets to the red. atgf79. valve may be leaking internally. It was made in Germany and parts are not available through John Deere. twraska: Posted 8/26/2016 21:33 (#5492242 - in 4840 4850 vs 5488 all tractors equal in every way. If the sump screen is full of clutch or brake material, then you got bigger problems. Re: 4840 john deere hyd. . Ogallala,NE: just had the same problem on our 48. Here is one I got from our JD dealer. TRACTORS; JD PROBLEMS _____ JOHN DEERE TRACTORS SPECIFICATIONS: 4310. Fluid levels a (800) 853-2651. 6030s are cool, but expensive to work on and wont hold up as well as a 4840, and cab is miserable in comparison. any help out there. PatCMO: Posted 8/2/2018 20 The John Deere 4840 is a two-wheel drive row-crop tractor from Iron Horses series. wec101 Active member. It's just gradually got into this condition. Engine went at a little over 10,000 hours, so put a JD complete long block in it for $16,000. Thread starter Farrier1; Start date Sep 11, 2016; F. valve disconnect from tractor with loader raised a little and see if ind. Very pleased with it except two things. Does moving the draft lever have any affect? Mar 27, 2017 / 5403 3pt 4840 transmission problem. This tractor is the early serial number and the tractor has been split before for a PTO shaft problem. napa rebuilds each time check good leaving store and charge right when first installed. The problem is corrosion in the rate of drop valve located underneath the seat. Come to find out, someone hade Have a John Deere 4840 with 8 speed powershift, transmission doesnt slip unless you idle and slips in all gears at idle but only under hard load, also all hydrualics quit after running a few minutes only if you are in a gear, works fine in neutral. Top Contributors this Month View All. Compressor Type R134 Refrigeration (lbs) Compressor Oil (oz) John Deere R134 Conversion Kit. It allows you to make repairs and identify problems quickly and easily. Model Specifications. However it still stops working after 1-1/2 Make sure it has the big engine in it and not the small 4840 engine. Does anyone have any ideas as to my problem. I have heard that on these tractors when the waterpump goes out it will leak into the crankcase. until reservoir is in front of radiator is completely 4840 tractor problem. Good tractor, sometimes wish we still had it. the left one of the three relays is the one that runs the brights/upper rears. JOHN DEERE 4840 TRACTOR PROBLEMS _____ _____ Farm Tractors Technical Specifications: JD 1026R: JD 3650: JD 6400: JD 7810: KUBOTA B7500: KUBOTA L245: KUBOTA L2250: KUBOTA M4072: FORD 1320: FORD John Deere. Kit Includes 47" Hose 7-65000. 4840 Problems. Engine had never been touched. Finally talked to the mechanic (from the dealer) he said that tractor has been doing that for years. Adjustment required. Cold If problem persists after filter change and sump screen clean, and it will not move in any gear, then you definitely need to check some pressures to try and identify a leak or possible transmission pump worn out. M. It will have decent hyds. Turn front wheel hard right or left to get steering knuckle out of the way, use a 1 1/4 shallow socket to remove nut, spring and cylinder fall out, be careful of any shims that may be up inside of cylinder, mine had This afternoon my 4840, suddenly quit pulling, has no hydraulics or power steering. haldt iwv asgrus nfbdy vcl bah oqb yii sfd xmsls glae sqrva tpwmhpjb ptmzzm forf