Massey Ferguson 265 (hoist trouble)

[Pritt2]

With a load or not the draw arms will not pick up when first started, after warming up they will raise only at an idle or around 500 rpm. If you raise the rpm to 1000 the draw arms will drop all the way down. It does not have a selector switch valve to switch from draw arms to front bucket (does not have a loader), it does have aux. hyd. 2 output and 2 return and they sometimes leak at the quick coupler fittings but i would not think it would matter because there is no pressure on them unless you pull the levers to the control valve opening flow to the aux. hyd. The draft lever is not working either, with the hoist raised and the draft lever in down position the hoist does not drop. It is a 79 model 265 with single stage clutch and independant pto or some call it split torque.
This tractor was fine and working great, parked one evening after using an 8' grader blade then i unhooked and put my 3 point trailer mover on to move my goosneck the following day and parked it. the next morning it would not work. The setting for you hoist speed above the right floor board hasn't been messed with and hyd. level is fine on the dipstick.
If anyone has had this issue before or knows what to do to fix it I'd sure appreciate the help, with it being down and time to brush hog around the corner it is driving me nuts.

 

[Pritt2]

I pulled the side cover off yesterday on the right side where you adjust your draw arm speed (after draining out 5 gallon of hyd fliud), Checked the linkage and operated the pump manually but there was not difference in operation .. Thinking the pump was starving for fluid i drained all the fluid, took the filter plate off the bottom and pulled the filter and found my problem .... The filter was so stopped up, it was unbelievable !
Changed the filter and filled with new fluid and now it works like a new one and very strong, Everyone i talked to including a Massey mechanic said they doubted it was the filter and no one ever changes them anyway, Fluid looked clear on the dipstick but when drained it was black as engine oil. Prior to when i bought this tractor a few months ago it had set without being started for 7 years in a shed.
I searched this site for answers and similar posts and if they ever got theirs fixed no one reported what the problem was or how to fix it, I'm making this post for future reference that it may help someone with similar problems. This 265 also has what they call a piggy back pump that operates the aux. hyd. and sets above the main pump for the hoist. In other words 2 seperate pumps, one for aux. hyd. and the other for hoist.