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Farmall & IHC Tractors Discussion Forum
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706 steering/TA

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Tech 7

10-18-2006 05:55:53




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Hi...not familiar with these machines so need some info.Ihave no steering at all and the TA doesn"t work in high all the time. Where do I check pressures and what pressures should I be seeing? Thanks, Bob




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Thack

10-18-2006 19:55:19




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 Re: 706 steering/TA in reply to Tech 7, 10-18-2006 05:55:53  
I had a similar problem this year. I changed the Hydraulic fluid and drove it around for about an hour. I then changed the fluid again, new filter also, and decided to operate it for a few weeks to see what happened.

After about ten hours of operation it was like someone fliped a switch and everything came on.

Had that not worked next on my list were to check #1. MCV, and #2. that the spline on the shaft had not rounded over.

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Allan In NE

10-18-2006 06:23:36




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 Re: 706 steering/TA in reply to Tech 7, 10-18-2006 05:55:53  
Oh heck Bob,

People are gonna argue with me on this one. But, that tractor is something like 50 years out.

Forget the silly pressures. If you've lost steering, you've lost hydraulics.

If the PTO works okay, if the filter is good and the oil level is up to snuff, cut to the chase, save a lot of time/aggrivation/head-scratchin'.

Just put a front pump in and be done with it. This pump lives behind the big square plate in front of the left step.

Allan

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the tractor vet

10-18-2006 07:04:16




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 Re: 706 steering/TA in reply to Allan In NE, 10-18-2006 06:23:36  
Well after he put the new pump and it still does not work then what??? Jack the radatior cap and drive a new one under it???? With out testing and seeing what your are working with then ya replace the pump and when ya still got problems ya replace the T/A and then ya still have the same problem then what ????? ????



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Allan In NE

10-18-2006 07:34:01




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 Re: 706 steering/TA in reply to the tractor vet, 10-18-2006 07:04:16  
Tractor is 50 years old, no steering and no T/A.

He has no initial oil. Why not put in a pump? Gotta go in there anyhow.

If and when this by chance does not cure the problem, then we go looking for an oddball ghost that just might by pure coincidental accident cause two completely separate, but still front pump oil related, problems downstream from one another?

Dunno, I say put in the common-most wear item first. Sure can't hurt on a tractor that old. Odds are 90/10 in favor of a successful repair. Roll the dice and quit wasting time jacking around with all that testing.

For sake of argument, let's just say a 3-cent o-ring is causing all the grief. Put a darned pump in it anyway. It's old and it needs replacing just because they do wear out over time and the entry wound has already been made.

Allan

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the tractor vet

10-18-2006 08:07:46




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 Re: 706 steering/TA in reply to Allan In NE, 10-18-2006 07:34:01  
I do not beleive it is the pump but i am not there , I am leaning more toward the MCV as to a sticking valve , or a weak spring . Now if i am wrong then the problem is inside the T/A . Now it is like this Allen Other then a couple other guys on here that spent as much or longer working on I H tractors as i have and have always done the simple things first before dropen money just to say well i replaced this and i replaced that taken a couple hours and testing is a whole lot cheaper then droppen 400 bucks for a pump only to find out that it only took a 60 dollar spring kit and a gskt kit to fix the problem . Now if ya don't have means to do the test yourself then here again spending a 100-200 bucks to have someone else do that for ya and then ya know just whatya need and not every 40 year old tractor needs this or that . As this or that my have been alreay replaced so a simple pressure test and a flow rate will tell you this or that and the best money that i ever spent was the day i took and went to a sale just knowen that i was wasten my time going and end up buying 90% of all the service dept equipment of and old I H dealer ship and got my flowrater as it saved me a ton of man hours and the customer a ton of money while i played the game of let rplce this and that and it would nail down the problems . So here we are and you are the one that has to run off to the dealer for parts and when this does not work then run back and buy something else and try that and back and forth . And yes there are a bunch of dealers out there that have mechanics that just know how to unbolt a part and replace it and bolt something else on till they get it wright . Also remember that not everybody has a bottmless check book . Also just why did you send your 966 in to the dealer to have them do the work on the 966? Heck that job is not that hard and if ya go a Elcheapo cherry picker and some blocking or homemade stands it would have been a nice learning experance. Oh well the bill will be a learning experance .

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Allan In NE

10-18-2006 08:26:13




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 Re: 706 steering/TA in reply to the tractor vet, 10-18-2006 08:07:46  
Think I gotta cut back on my morning coffee. :>)

Allan



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