Author	[Modern View]
mb58 09-05-2012 11:27:16 192.234.241.146 Report to Moderator	Load shaft bushings on a JD 4020. It's been a long time since I changed them out and I'm having trouble remembering what it entailed. Seems like I had to drive the bushings out. Stick some kinda rod through from one side and drive to opposite side out. Is that right? Or are they sitting in a recessed hole like the seals are? [Reply]   [No Email]
Jim Knapp 09-05-2012 14:37:33 184.20.33.131 Report to Moderator	Re: replacing load shaft bushings. in reply to mb58, 09-05-2012 11:27:16   I use a floor jack to lower and raise the "A-frame" or "wishbone". Drive the old bushings out from the opposite side. A old loadshaft with the end cut or ground to a 90 degree edge is what I use. Check the bushings in the wishbone. If the tractor has seen a lot of use, they may be worn. Replace the bushings in the housing and the seals. Last time I replaced them, a local Deere mechanic recommended coating the seals with black Permatex. Sometime in the past 40 years someone may have damaged the seat with a chisel when removing the seals. When you swing the wishbone back in place, shim it so there is no side to side movement. Jim [Reply]  [No Email]
JDBert 09-05-2012 14:16:20 67.5.17.15 Report to Moderator	Re: replacing load shaft bushings. in reply to mb58, 09-05-2012 11:27:16   I'll add that I always put in a new shaft to, but like tim said to- the side to side motion is pretty critical, I got to do my 4620 twice because I didnt do the side to side shiming the first time and it ripped the seals out after 1 fall of use. [Reply]  [No Email]
Tx Jim 09-05-2012 11:50:33 67.142.163.25 Report to Moderator	Re: replacing load shaft bushings. in reply to F-I-T, 09-05-2012 11:27:16   I'll add to what Tim stated be sure to put the L/D control lever in "D" before removing the shaft [Reply]  [No Email]
Tim S 09-05-2012 11:34:21 75.49.18.96 Report to Moderator	Re: replacing load shaft bushings. in reply to mb58, 09-05-2012 11:27:16   Drain the oil, remove the lower 3pt arms pull the draw bar almost out (I use it to kinda balance things for a bit)remove the end caps, push the shaft out, now pull the draw bar on out letting the A frame swing down,be ready for it,,it can put a dent in your head, then pry the seals out, then drive the bushings out from the other side of each one, I use a nice squared off 1" rod, I like to use the new style bushings with the o-ring in them,Plus the original seal, be sure to shim the A frame to keep the side to side movement to a minimum... [Reply]  [No Email]