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1755 steering, again

J

jmandrze

Member
Attempted to fix this issue end of winter
but life happened so now it's time to get
it done. Steering on our 1755 is off when
traveling in road gear. Tractor drifts and
when you correct with the wheel it takes a
few seconds to catch up at which point you
have over corrected and you end up zig
zagging down the road. The tractor has the
Char-Lynn orbital steering motor. The
steering cylinder was leaking so I thought
it maybe the issue so I stripped it down.
All the attachments are tight. Looking for
advise on what the issue could be before I
tear anything apart and start spending.

Jason
cvphoto41438.jpg
 
If the steering is drifting like that there is a chance it?s blown piston seals in the steering cylinder but that is most commonly associated with a worn steering motor.
 
The 1755s had closed center hydraulics. That's a bleed off hose that takes any leakage past the o rings back in to the system. That was on all the tractors from the 1755 right on through all the Whites.

A seal and o ring kit for those is about $25,so it won't cost much to try.
 
Dont laugh but, i had a guy ak me whhy his 1850 was wandering? We found the bolt that secures the arm from the steering shaft to tierods was dangerously loose. New grade 8 bolt very tight cured it
 
Here's a thought. Take that hose off the top cap and have somebody turn the wheels both ways. There shouldn't be much,if any oil leaking past the o rings and in to that cavity. If oil blows out of it when you're turning it,that would be an indicator of one of those rings being bad.
 
Thanks for all the advice. Ordered a rebuild kits for the steering cylinder from Maibach's so I am going to start with that and checking the tie rods, wheel bearings and toe in which I will have to check the book on. If that fails it's a new orbital motor. I will follow up in a few weeks with what I find out.

Jason
 
I "think" on that one,there isn't a bolt through the center steering arm. I believe the shaft is tapered and there's a big nut on the bottom to draw it up. Check that.
 
The bolt goes down through the sector gear. When you pull the cover off the top of the cylinder you will see a plug in the top of the gear. Takes two flat screwdrivers, one on each side, to wiggle it out. How hard it comes out depend on how hard the o-ring is but it just pops out. The draw bolt is under that plug. There is an Eaton style snap ring in the gear and a retained washer on the bolt. If you need to remove the gear from the shaft to inspect the splines just back the bolt out and the washer bucks against the Eaton ring to push the two apart.
 
The splined top of it inside the cylinder is tapered yes,but I think on one that new,the bottom is tapered too. Both of my Whites are and so is the White front end under my 1600,but,and maybe I'm wrong,I thought they started that with the 55 series. The center steering arm is solid and tapered inside to match the tapered shaft. It's not split with a bolt through it. It takes a heck of a big socket. I couldn't tell you right off the top of my head what size,but larger than an inch and a half I believe.
 
Oliver even had a service bulletin because of that bolt working loose and they released a grade 8 bolt to use in that application
 
My 1850 was wandering like that a year ago. The nut was stripped and when I took it apart,it had spread so far that the bolt was bent. I went to a Grade 8 in that one and double nutted it.
 
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