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Massey Harris & Massey Ferguson Tractors Discussion Forum
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Hello DavidP, South Wales

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Aaron Ford

05-03-2008 13:21:44




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Let's just say that perchance a control valve was installed backward. That would likely cause my unloading problem, yes? The end of the valve that accepts the oscillator was turned toward the actuator so the oscillator had zero effect on the valve. What kills me is that I reinstalled everything exactly as it came out, pictures and everything. I guess it makes sense cause it did not work for the previous owner either... I also noticed that when reassembled correctly, it did not have any effect until turned 90 degrees to engage the oscillator, it sorta floated. Now I gotta find my safety wire. It is around here somewhere.

Thanks for the tip,

Aaron

PS. Are you sure the control valve spring does not need to be shimmed? Just asking cause the lift cover is a bear to pull with the sheetmetal on.

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DavidP, South Wales

05-04-2008 03:53:44




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 Re: Hello DavidP, South Wales in reply to Aaron Ford, 05-03-2008 13:21:44  
Hi, glad you are making progress. If you don't have soft steel wire some heavy copper strand from electric cable will do nicely.
Adding shims under the control valve spring would only increase the possibility of it becoming 'coil-bound' and reducing cv movement albeit by fractions.
Yes, the lift cover is awkward to fit but in my 35 years of working with MF's I've only ever used copies of the correct tools made when we started with MF's. Its worth putting points on a couple of short 7/16 unc bolts and fitting them to the second line of holes back. They will hold the gasket in place and bring the cover down square.
Remember it has to be brought down and then slid forward slightly for the piston housing to slide under the front of the casing. Bolts should be tightened to 55 lb/ft.

Cheers
David

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DavidP, South Wales

05-04-2008 03:54:43




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 Re: Hello DavidP, South Wales in reply to DavidP, South Wales, 05-04-2008 03:53:44  
Don't forget to put screwdriver slots in the end of the bolts or you will not remove them! D



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