JDcrawlers Messageboard

I should have posted sooner but, got the 550 split apart and back together, and operational . My original problem was in the directional clutch( bearings went all to hell ) I have about 60 hrs on it now works ok I think I still have issues with the trans pump or pressure relief valve still low oil p...

550 up and running output gear went all to hell on the back of the directional clutch, hard to find parts but not a bad job to work on. a lot of wrenching but it was all straight forward. Machine works well just a little concerned about trans pressure. Just doing a little finish grading with it unti...

The Sky is falling!!!!!!!


If that's what it is that is what it is , at least I know where to start, Thanks Roy

No difference on the gauge (that i can see). I started the machine with the brake on and in gear 2nd and 3rd reverse no noise it just holds aginst the converter , but if you apply both pedal's things start to turn and the noise is back. Pressure on the gauge is bottom green at idle goes up to 50psi ...

I have checked out yesterdays tractors already, that was just a lot of doom and gloom, this is byfar the better fourm(from what I can tell from some of the other post i have read) its just a matter of getting it into the shop and start the teardown , I was hoping for a clear where to start either pu...

I was thinking along the same lines , this crawler stuff is kinda new to me, was this bearing problem that you had fixed from the top? I might tackle a job like that myself anything worse and I might farm the job out. I'am quite handy with the stuff I know, maby the manual will shed some light when ...

Just picked up a 1980 JD550 dozer at auction moves FWD/REV in all 3 gears turns as it should just makes an awfull rattle/grind in the trans while in gear. Nothing at idle through full power in neutral. better in FWD worse in reverse. Purchased a jd tech manual but it is still a week away. Is thier a...