rScotty
Super Member
- Joined
- Apr 21, 2001
- Messages
- 8,258
- Location
- Rural mountains - Colorado
- Tractor
- Kubota M59, JD530, JD310SG. Restoring Yanmar YM165D
DrScotty-funny you should mention the front axle pivot adjustment.
Last fall I made that adjustment on my B3030 at the 400 hour service.
It took about two full turns to tighten it up on my pampered tractor.
Now I have a seep -hope I don't get shot down for using UDT.
UDT is/was original fluid for this unit.
Did not notice any difference going over bumps.
Thanks for reading!
I've tightened mine down 3 times so far. Surprised that you didn't see any change over bumps with that much play. Do you have a loader on it? On mine, tightening the front pivot completely eliminated a sort of clunk-clunk I was hearing and feeling through the steering on bumps. But tightening things up doesn't eliminate it forever; the slop comes back every few hundred hours....or maybe I'm just more particular now because I know I can get rid of it so easily. First time I adjusted it took a couple of turns. After that, only a flat or two
I didn't mean to say that I thought UDT - or any other oil - actually causes a leak. I just think the axle input shaft seal is in a real dirty location - which means the seal is going to wear sooner and as it does then the thinner UDT type hydraulic oils will splash up to hit and maybe seep past a slightly worn seal. I wouldn't think that thick and viscous 80/90 wt. gear oil would do that as much....at least that's my guess. But if the axle pivot allows enough fore/aft movement I'd also imagine that would tend to pump a few drops of oil past the seal regardless of the type of oil. At least that's my theory. As near as I can tell from talking to other mechanical types, so far there's about as much evidence supporting that theory as against it so it sure isn't proven true. As a theory it's still at the stage of sounding more like religion or politics than like science. But at least the theory is good old dumb mechanics rather than politics or religion, so eventually we will know. Time will tell us.
BTW, my M59 came from the dealer with New Holland Multi-G 134 in the hydraulics, tranny, and the front axle because that is what my dealer used when he did the first service on all Kubotas. A year or two later I drained out a few quarts ofthe Multi-G from the front axle (to remove condensation and particles)... and replaced those quarts with 75-90wt gear oil. So far everything works fine, but that could be dumb luck or since our M59 was one of the first ones I like to think it was screwed together right.
BTW, I think your B3030 and the M5200 are both going to be classics. Not as sure about the M59....it maybe should be a classic based on innovation, usefulness, and reliability - but the other thing a classic needs is enough numbers for broad popular support and they just haven't sold many M59s. In that respect it's kinda like the Boomer 8N I'm afraid. But dang! What a pretty tractor that Boomer is even if it didn't sell many! No, I don't have one. In fact, have only seen the Boomer 8n once, and that was years ago at the MF/NH dealer.
Liked it though....
Enjoy, rScotty