Comments on: Massey Ferguson 550 Exterior Hydraulic Valve

By: paul

paul — Mon, 09 Apr 2012 07:42:05 +0000

Hi on kontac spool valve ,you mentioned it was convertable,what do you mean by this, as valves I have fitted are kontac valves,also there are screw in screw out stems on them ,how do these work,and will it solve my oil return problem with thanks paul

By: Billy

Billy — Mon, 27 Feb 2012 21:41:15 +0000

Anyone out there,I recently bought a 1978 Massey 550.

The rear hydrolics are stuck at up position permanently.

I have been advised it is a stuck valve

Is it a major operation to remove the stuck valve and replace

with a new one. Thanks Bill

By: Neil

Neil — Tue, 12 Apr 2011 20:40:37 +0000

regarding the Massey 550 Hydraulic Selector valve…. i broke mine on Saturday – the lever came off in my hands, does anyone know where to get one.. i have seached for one online but cannot seem to find one. Any help much appreciated

thanks

Neil

By: Vintage Tractor Engineer

Vintage Tractor Engineer — Tue, 22 Mar 2011 21:07:09 +0000

Hi Paul,

Are you trying to operate a single acting ram with a double acting spool? If so you will need to connect the spare outlet from the spool valve to the outlet from the spool block that goes back to the reservoir.

Alternatively you would need a valve with float position or a convertable valve like the original MF Kontac valves that were fitted to the 500 series tractors.

Steve.

By: paul

paul — Sun, 20 Mar 2011 19:17:37 +0000

Hi have just piped up a spool block on a massey 550 and beam goes down moaning due to poor oil return,when i pull lever back ,would i be pressurising blanking plug port ,or should slice be modified to let oil go back with thanks paul