4200 hydraulic issues

whynot162 · Sep 29, 2015

is there a link to a manual that shows how to work on the rockshaft? and adjust or repair this part that is sticking? Looking at the few parts I found on Ebay, they do not look like the valve on the tractor, so I am assuming that it comes apart to come off?

beenthere · Sep 29, 2015

Have you looked up this tractor on jdparts.com to see the various parts and their assembly schematics?

Egon · Sep 30, 2015

[video] · Low oil level. · Hydraulic stop valve closed. · Excessive load on hitch. · Hydraulic oil too cold. · Hydraulic oil suction screen clogged. 3-POINT HITCH DROPS SLOWLY OR DOES NOT DROP · Rate-of-drop valve closed. · Rate-of-drop valve set too slowly. 3-POINT HITCH DROPS TOO FAST · Rate-of-drop set too fast. · Load too heavy.[/video]

Nother from manual. May/may not help???

yod67 · Oct 11, 2015

This is a post that I had in 2009. It was a o-ring and fixed my problem. Hopes this helps

http://www.tractorbynet.com/forums/john-deere-owning-operating/151482-jd-4200-3-pt-goes.html?highlight=

whynot162 · Oct 20, 2015

Thank you for all of the help, We replaced the shear pin and it works well now. Also soaked the area with pb blaster several times and it worked in and things are moving smooth. total cost of the repair, JD quoted $1500. he spent 0.20 on the shear pin, and about $5.00 on a can of PB blaster.