What is this thing? How does it work?

[def38]

M-F 231S, 2003. There is this thing attached to the top of the transmission just in front of the seat. It has hydraulic hoses attached to it. There is a little metal rod attached that sticks up in the air about 4 inches. Looks to be some sort of valve. There is no mention of it in the operators manual.

I want to install a hydraulic top link.

Give me some information as to what this thing does. It seems to be stuck with paint and corrosion.

Thanks for the help.

 

[Turbys_1700]

If it is in front of the seat it could be a flow rate control valve to the rear hydraulics. Where does the hydraulic hose go to?

 

[def38]

Two hoses go to a control on the RH fender and then back to two QDs on the rear fender.

 

[Turbys_1700]

Have you tried to turn it one way or the other? I've never seen a pin like that before.

 

[def38]

It won't turn or operate in any direction. It seems to be stuck in the position shown. Can it be removed and disassembled and rebuilt with new o-rings, gaskets, etc?

 

[teg]

It doesn't move with the engine off? or clutch pushed in? Get a longer pipe for leverage???

 

[Spanner]

http://www.tractorbynet.com/forums/...erating/387277-mystery-valve.html#post4898007

 

[teg]

Found it!!!

Massey Ferguson Hydraulic Selector, isolator assembly For all Massey Ferguson - TS300

 

[def38]

Found it!!!

Massey Ferguson Hydraulic Selector, isolator assembly For all Massey Ferguson - TS300

Horray...yes,that's it.

The Crimson Tide Marching band will be at your place along with the Tide Cheerleaders to perform for you as thanks.

http://media.gettyimages.com/photos...-the-tide-takes-picture-id631364614?s=612x612

Now, how do I rebuild it? Will it allow operation of my hydraulic top link?

 

[teg]

Yes, the description reads, Three position spool, forward position allows one-way (push) for single acting cylinder. {you would not want this}

Center position allows operation of the 3-point arms {currently in this position}

Rear position will feed power to a 4 way control valve for two way (push-pull) operation of double acting cylinder {This should work for hydraulic top AND side link}

I see in your last photo, you only have a 2 way control valve (asking??) Got more photos of the valve with the seat tilted up?

So, when I decided to adjust my 3ph drop rate, I had to REALLY had to apply pressure to crack it open... to move it the first time!!! Try leverage and move it to the rear position.