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Massey Harris & Massey Ferguson Tractors Discussion Forum
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MF steering binds one side

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CadizHunter

03-25-2008 14:59:11




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On a different forum (TBN), a poster came ill (FWJ) and suggested I come here for help.....
I have a 1970 MF165, that recently had a new front end end installed, including new center bushing. Apparently, my mechanic didn"t adjust something correctly. I have PS only on one side now, and understand there is an adjustment procedure involving a turnbuckle behind grill and a nearby adjustment. I guess it"s spelled out in the MF manual, but I don"t have one. Can somebody walk me thru this procedure ....understanding that I"m a non-mechanic cityboy?

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Eric in IL

03-25-2008 18:49:20




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 Re: MF steering binds one side in reply to CadizHunter, 03-25-2008 14:59:11  
David gives good advise on his post below.

I would suspect wear on the pins and/or holes at each end of the turnbuckle. You need a good fit there with minimum slop. Many times wear in this area is the main culprit. If there is too much wear here you will only be able to adjust the turnbuckle to produce power assist to the left or right, but not both left and right at the same time. That is where I would start anyway.

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DavidP, South Wales

03-25-2008 16:41:01




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 Re: MF steering binds one side in reply to CadizHunter, 03-25-2008 14:59:11  
Hello,
I assume that the steering adjustment will be the same as for UK and European models.
First of all the system works by having a controlled amount of play in the mechanism. If the bushes on the main vertical shaft have been replaced, that's a good start. They should have been reamed out in line. If the old shaft has been fitted then there may still be play there.
Also if you have any excess wear in the steering box or ball joints the PAS will loose its efficiency.
OK, assuming that all of the above is OK you will see the adjustable barrel on top of the ram. Slacken the lock nuts and disconnect one end. To the right you will see a large nut with a straight slotted screw in it. Slacken the nut and turn the screw clockwise under light pressure until it stops. Push and pull the drag-link back and forth (the one from the steering box) to ensure that the screw is fully down. Adjust the barrel so that the pin will just fit and fit the split pin. Nip the lock nuts. Take not of the position of the screw slot and slacken SEVEN turns. Nip the locknut. This is the initial adjustment. STart the engine and check the operation of the PAS. If it is OK, great...job done. If you have more assistance one side, unscrew another half a turn up to a max of two turns. If you cannot get good results by this time there will be wear in the system somewhere. Have an assistant turn the wheel in the play and look for any movement that does not push or pull the spool valve on top of the ram.
DOn't forget to grease the nipple on the side of the casting where the shaft is. It is frequently neglected.
Please come back if you need any more help.
DavidP, South Wales

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