MasseyFerguson Power Steering problems (MF65/203)

[MF-ANDY]

that pump is the same as one fitted to a 135. it should have two pipes one pressure which goes to your control valve and one return which comes back from your control valve. the reservoir for that pump is built in. the separate reservoir shown in the drawing has a feed to the pump, a relief valve return from the pump and a return from the valve.

 

[Pilgrimmick]

That is how it is set up at the minute. The main reservoir is no longer in the system at all, so will try and make that work. hopefully there is no great difference in the steering box that will affect it.

 

[Pilgrimmick]

MF Andy, does that mean that it will run if set up like the 135, or does it need the relief valve?

 

[MF-ANDY]

any wear in the pins of the valve on the steering column will prevent assistance. it relies on up and down movement of the column to move the valve.

 

[MF-ANDY]

MF Andy, does that mean that it will run if set up like the 135, or does it need the relief valve?

that kidney shaped pump has an inbuilt relief valve

 

[Pilgrimmick]

That the control valve?

 

[Pilgrimmick]

Your answering faster than I can type!!!!

The control valve, is that where the wear will be? Can it be adjusted out?

 

[MF-ANDY]

the pump shown in your picture will house the relief valve iirc under the plug above your outlet pipe

 

[MF-ANDY]

Your answering faster than I can type!!!!

The control valve, is that where the wear will be? Can it be adjusted out?

maybe by fitting oversize pins if they are worn. the turnbuckle can be adjusted but that only really balances right and left assistance

 

[Pilgrimmick]

Thanks! Things are looking up then, I will adjust the control valve and see how it works.

 

[Pilgrimmick]

Not getting much assistance either way at the minute, so prehaps not the control valve.

 

[Mrs Brown]

Never worked with the steering column type valve but if you take the pin out of the end furthest away from the spool if you then try moving the spool with screwdriver or like it should make steering move it did on the 165/185 type up in the nose of the tractor. If no movement either the PRV is set too low or your pump is goosed

 

[Mursal]

That relief valve looks loose, well the plug?
Can you get oil flow out of the pump on the starter?
If so and you know the relief valve is not stuck closed, pop a gauge on the outlet from the pump.
Best Tee an ON/OFF tap before the gauge with the outlet from the pump going back to the reservoir. Close the tap gradually to see can you get the pressure to build on the gauge?

But maybe you have that already covered ............

 

[Pilgrimmick]

Mursal, good points, but I just do not have a gauge to play about with at the moment. Will no doubt be building up a selection of useful tools and accessories as I get further down the line of ownership. (only had it a week and is first tractor!)

 

[Pilgrimmick]

Have checked the pump, the filter and spring is missing, not sure what else, so to be on the safe side I have ordered a new pump, with integral pressure relief valve. Will be with me by Thursday (they promise) so watch this space.
Greasing and other maintenance in the mean time.

 

[Mrs Brown]

Was going to say PV Dobson did have a barn full of industrial spares, was in it once and it was like Aladdins cave

 

[Pilgrimmick]

Was going to say PV Dobson did have a barn full of industrial spares, was in it once and it was like Aladdins cave

Good to know, I still need a diff lock pedal and a few minor items I'm sure.

 

[J428TGS]

I did a search on agco parts for your tractor an it came up with an MF 1100 looking back to your diff troubles it looks similar back end, I dunno though about the steering system, you shoud get a login for the agco parts book form your dealer it makes good reference to see how it goes together

 

[Pilgrimmick]

I did a search on agco parts for your tractor an it came up with an MF 1100 looking back to your diff troubles it looks similar back end, I dunno though about the steering system, you shoud get a login for the agco parts book form your dealer it makes good reference to see how it goes together

Will look at that, not got a dealer as such, was private sale.

 

[Pilgrimmick]

OK, update, new pump arrived yesterday, but fittings for hose couplings different, the location also wrong for exosting hoses and pipes, so have bitten the bullet and ordered new pipes and hoses, not as extravigant as first looks, as the existing set up was a bit of a bodge and past its best!
Watch this space.