masseyferguson 180 3pt hydraulic issues

My 180 has been lazy in lifting the 3pt for years so i investigated. with the hydraulic cover plate that holds the rock shaft off, i discovered a pipe that supplies fluid and pressure up to the rock shaft. On that standoff pipe there is a block that is 1/2 X 1/1/2 X 1/3/4 that is attached to the pipe but under testing it shows that the pipe bleeds pressure back to the trans. So does anyone know the purpose of this block.
next question I am eliminating the use of the piston pump and removed all the control linkage so is there any concern with that??

You mean you are doing away with the 3PH? If you remove the pump it will no longer work. The block is there so a remote valve can be added. It has nothing to do with the operation of the 3PH unless the O-rings on each end of the pipe are leaking. I would look at the lift cylinder and see if it needs new seal rings. If the pump is bad new ones are not that expensive. I got one for my 65 for $225 delivered to my house.

That block on the pipe if I recall is used to feed the pressure control valve with another small line from the valve to the block. Tractors without pressure control don't use that block. You could install a separate relief valve on the three point pump, then get a plain standpipe to replace the pipe with the block to get rid of it if you don't use the pressure control feature. Might just fix the internal leak and three point both..

Oops forgot about the 180 having pressure control. Sold mine several years ago.

I have replaced the 3 ph cylinder,piston and rings, and plan on controlling it with one of the auxiliary remote valve off the gear pump which has great pressure. thus not requiring the piston pump anymore as it is weak, and I dont want to split the tractor to replace it. So I am concerned what to do with the oil flow that remains from the piston pump, can i just remove the stand pipe and let the flow work internally with out agitation concerns

Hi, interesting modification and certainly one that is feasible. When we were moving small hay bales off the field about 15 years ago I plumbed my 135 to be able to operate the 3-point linkage and the cylinders which squeezed squeezed each block of 8 bales. This was done by using the isolating valve in the normal way to supply a 3-section external control valve. Two of the sections were for the squeeze cylinders and the third had a line running to one of the ports on the side of the hydraulic cover at the front. This port supplies the lift cylinder.Hydraulic power came from the Ferguson pump. The great advantage of this was that the 3-point linkage and squeeze was controlled easily without moving my hand away from the three levers which meant a quick pick-up in the field. Otherwise I would have been moving between the quadrant lever, the isolating valve and the squeeze levers......a right pain in the proverbial.
In bypassing the Ferguson pump you will only have control over the 3-point lift and you may need to fit a return line to the transmission if the valve that you will be using to control the 3-point is a double acting. There is a possibility that the empty three-point may not drop if the output from your alternative pump is filling the pipework to capacity.
DavidP, South Wales

I wish I had one of your bale squeeze inventions when i was a kid. With the double valve that is mounted under the seat it will control one remote cylinder and the 3 ph the return port is open to the trans so it should drop when empty or push down by hand as my new 1742 does.
So again if I remove the standpipe of the piston pump and close up the trans I should have no concerns with over agitation in the trans ??

Hello Ron, there should be no problem in the pump running continually in the 'pumping' position. However I think the oil should be diverted back into the transmission oil by means of a 'U' shaped pipe to stop any possible aeration of the oil leading to loss of performance in your alternative pump. This may not happen but it will rule out the posibility and prevent any possible oil leaks.
DavidP

(quoted from post at 13:29:44 02/04/18) Hello Ron, there should be no problem in the pump running continually in the 'pumping' position. However I think the oil should be diverted back into the transmission oil by means of a 'U' shaped pipe to stop any possible aeration of the oil leading to loss of performance in your alternative pump. This may not happen but it will rule out the posibility and prevent any possible oil leaks.
DavidP

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If you are talking about not using the original pump for the 3 point you could just remove the pressure relief valve also since you are only using the pump as a coupler for the pto.

That is what i was thinking!! also I like the idea of removing the pressure relief valve. Thanks to everyone that replied to this problem. Its cool to here a reply from someone in South Wales, as I was there once on business. CHEERS