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Well-known Member. Nov 3, 2009. #1. I have an early 4020 and I just put an overhaul kit in the brake valve. I put everything back together following my JD service manual. Then I bleed the brakes. Now the brakes are totally locked up. The tractor won't move. But if I open the bleed screws, it will move.4020 History. 4020 Fans; Models 4020, 3020, 4000 - Fan Letter; 4020 Photos; 4020 Serial Numbers; 4320 (Super 4020) "'The Long Green Line (tm)' of John Deere Tractors has included several that were classic - the models 'D', 'A' and 'G', among others. But none wears that designation more deservedly than the 4020. It was the most popular tractor ...I am currently experiencing problems starting my john deere 4020 (1969 12v). When starting, the starter motor sprocket does not grab the starter ring properly causing the engine to not go around and start. The starter ring was replaced six months ago by the previous owner. The starter motor gear has also been replacedNew User. Mar 20, 2017. #1. I have a John Deere 4020 Diesel that developed a miss. The first step to cure miss was to remove the pencil injectors and have them tested. All cracked/popped adequately, however, 2 of the injectors test pattern was not real good if pressure was added slowly so I replaced them. This did not cure the miss.Apr 13, 2009 · 5. Inspect and clean screen and magnet in screen. (previous owner said he had one installed in the screen when serviced a few years ago) 6. Refill with new new fluid and install new filter. 7. Reinstall coupling and check pressure and flow from main pump. Re: JD 4020 Starter problem 12V System in reply to Frank, 11-13-2003 18:48:50. Frank: If your key switch is located below your steering wheel it is on that panel. You can open that panel by the removal of the 3/8 cap screw at the bottom and all of your switch wiring is in there. I have had these wires to come loose.Member. Apr 26, 2011. #1. I am having two problems with my 1971 4320 with 7500 original hours. The first is that there is a rattling noise that starts shortly after the engine is started and it never quits. I have had this tractor for 4 years and it hasn"t gotton any worse or better. It sounds like it is coming from the front pump area.In this video I detail what I did to remove and rebuild the top shaft in the synchro range transmission from my 1960 John Deere 2010. The reason I needed to ...Re: 4020/trans. popping out of gear. in reply to Glen Anderson, 11-07-2004 21:09:50. You need to oil up the linkage so it moves freely, and verify that you can feel the detent in the transmission drop into place as the shift lever is moved into the fourth gear position. If the linkage is adjusted incorrectly, the detent will either drop into ...5. Inspect and clean screen and magnet in screen. (previous owner said he had one installed in the screen when serviced a few years ago) 6. Refill with new new fluid and install new filter. 7. Reinstall coupling and check pressure and flow from main pump.John S Kiernan, WalletHub Managing EditorMay 3, 2023 Drug abuse has a long and storied history in the United States, and we’ve been “at war” with it since 1971 under the Nixon admi...#1. Hello, While investigating the cause of poor running issues / top end noise on our 4020 we found significant wear in the valve adjuster / pushrod region on some of the cylinders. Further inspection revealed that the rear facing plug in the rocker arm shaft had shifted, cutting off the oil supply to a good portion of the top end.Dec 13, 2007 · Hello all, Have a problem with my 4020. This past summer - if the tractor sat for more than 2-3 days...it wouldnt start. At the time - was a 24v system. 1st thing I did was replace the battery's - 2 brand new JD 12v's. Seemed to help for awhile - but not long and was back to not starting... Posted 8/17/2014 15:15 (#4023086 - in reply to #4023062) Subject: RE: John Deere 4020 Powershift. Southeastern, IL. Very tough transmission. We have a 67 model with 9300 hours. It has M & W turbo that is running around 120 hp. It use to pull a 12 row planter with 400 gallon of fluid for 15 years and then just bare planter for 5 years.A, 1965 cockshutt 40, I have a 4020 that ran really well up until November. It starts good , but idles rough and when you put it under load it stalls. If you pull the choke out it will come back to life and run OK. if you feather the choke back in, it will drive around OK in lower gear. Always runs rough and always stalls out under load.4020 Powershift - Shifting Issue. I have a 1966 4020 Powershift, lot of hours but fairly well taken care of. Shifts into reverse fine ---- when switching to forward it wants to miss. I have to shift back to reverse and then back to forward to get it to hit. Sometimes it will miss again, other times it picks right up like it should.5. Inspect and clean screen and magnet in screen. (previous owner said he had one installed in the screen when serviced a few years ago) 6. Refill with new new fluid and install new filter. 7. Reinstall coupling and check pressure and flow from main pump.Jun 21, 2009. #1. Hello, I have a 1967 John Deere 4020. About a month ago, I decided that I would fix the fuel gauge on it. I bought a new sensor from AI Products and I bought a new gauge from them also. When I installed them, the gauge would show about 3/4 full whether it was empty or full.28 May 2023 ... How to adjust the clutch on a John Deere 4020. 7.4K ... John Deere 4020 SCV Rebuild (Well Kind Of) ... 3-Point lift issue on a 4020. Soybean Farmer ...disconnect all the lines & linkages.. remove the side cover on the pump, 2 flat head screws, drain.. 2 lines under the side cover, 1 is stationary & 1 rotates.. rotate engine until BOTH lines line-up & stop.. Now remove the 2 or 3 nuts holding the pump down & pull up.. DONE.Posted 8/1/2009 14:08 (#796040) Subject: New electronic iWeird shifting problem - JD 4020. We have a 1969 John Deere 402 John Deere Wiring Harness - Steiner Tractor Parts I guess you plan on staying with the 12v. Just make sure the folks you buy from know you have upgraded. Ebay has them also. Here is a JD parts John …Posted 8/17/2014 15:15 (#4023086 - in reply to #4023062) Subject: RE: John Deere 4020 Powershift. Southeastern, IL. Very tough transmission. We have a 67 model with 9300 hours. It has M & W turbo that is running around 120 hp. It use to pull a 12 row planter with 400 gallon of fluid for 15 years and then just bare planter for 5 years. Jul 26, 2016 · 1) The 4020 in question is a front conso John Deere 4020 tractor is a versatile and robust agricultural machine known for its power and reliability. It offers options for both diesel and gasoline engines, multiple transmission choices, and a range of features that make it suitable for various farming and field applications. Additional insights and information about the John Deere 4020:4020 synchro clutch problem. Hello all, 67 4020 sychro, just rebuilt engine 1yr ago, put new throwout bearings,clutch pack, clutch pad, and flywheel in same time. This afternoon while feeding hay I pushed the clutch, felt a pop, clutch grabbed and wouldnt release. had to kill it to stop. Sep 29, 2016. #1. Hello, While investigating the cause of

Symptom #01: Screeching Noise. The bearings of a John Deere tractor play an important role, helping to deliver efficient performance. They can be worn out due to continuous use. Also, bearings get exposed to dirt and debris. As a result, the alternator generates less power, causing a grinding or screeching noise.John Deere 4020 - Problems and repair. Yesterday I discovered trouble with my John Deere 4020. Diesel will not crank. Tell me please what could be the damage? You must use the recommended fuel grade. Drive high pressure fuel pump is broken. Check and repair. Wrong fuel injection pump timing. Adjust if needed.4020 injector pump issue. Jump to Latest Follow. 10K views 13 replies 3 participants last post by thepumpguysc May 16, 2022. mastrkee Discussion starter. 27 …John deere 4020. Power steering works great. Probably wouldnt hurt to check the pressure but I dont believe that to be the problem. ... Over the yrs since 1964 many 1000's of L/D seals have been changed on 3020/4020's with ZERO problems. Always put L/D lever in "D" before removing L/D shaft and oil shaft with trans oil before ...John Deere 4020 tractor is a versatile and robust agricultural machine known for its power and reliability. It offers options for both diesel and gasoline engines, multiple transmission choices, and a range of features that make it suitable for various farming and field applications. Additional insights and information about the John Deere 4020:

Now we are a dairy farm. We have a 1964 John Deere 4020 diesel, the weight retainer for the governor in the injector pump broke so we ordered the part and began to disassemble the pump. (uses the RoosaMaster DB pump). During disassembly, my Dad broke the "cam locating screw" off in the housing, so we cannot continue to …Find parts & diagrams for your John Deere equipment. Search our parts catalog, order parts online or contact your John Deere dealer.…

Reader Q&A - also see RECOMMENDED ARTICLES & FAQs. The 24 volt 4020 - is it a positive ground system? Is it the origin. Possible cause: Symptom #01: Screeching Noise. The bearings of a John Deere tractor play an important rol.