2018年1月1日 · Hello, I just bought a 1971 4020 diesel JD tractor and am putting a loader on it. I'd like to get into the main hydraulic line running from the "rockcrusher"? Under the seat up in the rh side of the tractor by the gearshift. Is this the best way, and how is the best way to do it.

2017年12月1日 · The 4020's ran 2 different "rossa master" pumps.. a CBC & a JDB.. if its a JDB do as above.. Master Inj. pump rebuilder from Sunny S. Carolina. Save Share

2022年5月26日 · The factory temperature gauge for a 4020 is the old style capillary/manual type with sensor attached to the gauge by a tube. No electric involved. Check it out.

2022年4月26日 · I have a 1968 JD 4020 Power Shift. Sent to the dealer while back and because the previous owner had used bad fuel, pump needed rebuilt, which they did. Got tractor back and ran it a few hours and then it just died. When I turn it over, I have fuel coming to the pump. If I …

2020年10月13日 · John deere 4020 Jump to Latest 7.9K views 1 reply 2 participants last post by Tx Jim Oct 14, 2020

2011年3月8日 · I have a JD4020 that I am working on and I removed the sending unit for the oil pressure light on the dash as it no longer works and I add a 0-100psi manual oil pressure gauge instead. I have this strange problem with it when I start the …

2022年7月9日 · Totally agree with TXJim. Had this happen many times on 3020, 4020, 400A backhoe, 2140, etc. Rocking the steering left/right quickly while cranking usually solves the problem. The settings on the closed center hydraulic pump need adjusting for a start.

2010年4月3日 · John Deere 4020 diesel, all original except seat and one battery box, new oils and filters, injectors tested, very good rear tires, new clutch, pressure plate, throw out bearing. Clean tractor. Greased and ready to go. No longer need tractor. Located near Bad Axe MI

2011年3月25日 · hi i lost a rod in my 4020 replaced it resleved it got it running startid with 50psi oil pressur then it wormid up now 0 psi oil pressur it dos not knock or ratil can ...

2022年5月16日 · 4020 CBC injection pump issues Jump to Latest 3.3K views 2 replies 3 participants last post by thepumpguysc May 16, 2022