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Oliver, Cletrac, Co-op & Cockshutt Tractors Discussion Forum
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2255 pittman (steering) shaft

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Greg Davis

11-28-2004 12:53:00




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Does anyone have any hints on how to remove the 2255 pittman (steering) shaft? I have the steering cylinder off and it seems to be loose, but will not pull out from the top. Parts book shows a retainer near the bottom but it just looks like a real thick bushing. Any ideas? Thanks in advance.
Greg




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2255TR

11-28-2004 17:21:33




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 Re: 2255 pittman (steering) shaft in reply to Greg Davis, 11-28-2004 12:53:00  
Under the steering arm and lower pitman shaft bearing is there a locknut threaded on the stub of the pitman shaf?It would be about 2" nut.If there is no external nut look at the rear of the steering arm to make sure there is no pinch bolt through it.The pinch bolt style arm and pitman shaft was used in the earlier 50 series tractors and may have been installed in repair at some point.
As the post below mentions it can be a struggle to remove the shaft.First try using a bottle jack under only the stub of the piman shaft.Put enough pressure on jack to take some weight off of the front tires.Strike opposing sides of steering arm at shaft with a hammer to loosen the tapered splines.Some times the weight of the front of tractor is simply not enough.You then will need to fashion a puller to remove the shaft from ontop.If the above doesn't work repost and I'll post another more force full way to remove shaft.

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Greg Davis

11-29-2004 05:34:22




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 Re: 2255 pittman (steering) shaft in reply to 2255TR, 11-28-2004 17:21:33  
Thanks for the advice. I believe it is loose in the steering mechanism. It will move up and down freely with about 1/2 inch of play. It seems there is something at the bottom holding it after the nut has been removed. There is no pinch bolt. I have checked. The 2255 parts books shows a "retainer" at the bottom just above the nut. The service manual does not show such an animal. It looks like a thick bushing to me. Don't suppose that could be holding it in any way. I'll try the bottle jack method. Thanks,
Greg Davis

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2255TR

11-30-2004 07:50:17




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 Re: 2255 pittman (steering) shaft in reply to Greg Davis, 11-29-2004 05:34:22  
The "retainer" you mention is actually about an inch long spacer (hollow pipe).It has a dual purpose.One is to act as an inner race for the lower pitman shaft bearing.The other is as a spacer so that when you tighten the nut it compresses steering arm up onto the tapered splines of the pitman shaft.It is possible that it may have frozen around the shaft.The 1/2 inch play (which is to much should be about 1/16=1/8) is probably where the steering arm rides between the bearing bosses. There should be a flat washer there to take out most of the play.

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Greg Davis

11-30-2004 10:31:31




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 Re: 2255 pittman (steering) shaft in reply to 2255TR, 11-30-2004 07:50:17  
Got it off. Thanks for the advice. The retainer was frozen in place. Putting the bottle jack under the shaft and hitting the steering sector did the trick.
Thanks again,
Greg Davis



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bastar

11-28-2004 15:40:44




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 Re: 2255 pittman (steering) shaft in reply to Greg Davis, 11-28-2004 12:53:00  
I believe that you said that you have the steering cylinder off. From that I assume that you are attempting to remove the steering arm from the bottom end of the shaft. That arm and shaft has a tapered spline. Get ready for a struggle.



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Larry from MD

11-28-2004 15:28:28




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 Re: 2255 pittman (steering) shaft in reply to Greg Davis, 11-28-2004 12:53:00  
If its like the other olivers you have to remove the cap with 2 bolts on top of the unit and turn the puller bolt inside.This bolt holds the shaft in and stays in the unit.



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