namyessam
Gold Member
Yes,, the single hydraulic hose comes from the left side to the auxillary valve. Then when I decrease the hydraulic pressure the weight of the loader itself pushes the hydraulic fluid back Into the tractor. As I said beforehand just like a tipping trailer.
I've been giving your situation more thought and I think adding a divirter valve in place of the transfer cover would not be a major difference than adding a massey two spool to the tractor.
On my 135, I have a two spool valve. The left hand lever controls the three point. I have to pull the lever toward the seat and lock it in with the detent to control the three point operation from the position or draft levers on the right hand side of the seat. To use the auxiliary circut, I must move the left hand lever on the valve to its center position to isolate the three point, move the position lever on the right hand side of the seat to the constant pumping position, then use the right hand lever on the auxiliary valve to raise and lower the auxiliary cylinder. (The two spool valve must have an extra return port back to the differential case to allow this to work.) If I leave the left hand lever pulled toward the seat when operating the auxiliary circut the three point goes up and down such as you have experienced. I can center the right hand lever and use the left hand lever to raise the three point at this time but cannot lower it without using the position lever on the right hand of the seat. Its a bit confusing and awkward but you get use to it after a while.
So, my thinking right now if the divirter valve is easilly switched, it would be the same and a whole lot cheaper. the one thing that comes to mind though is to lower the auxiliary cylinder you would still be using the position lever on the side of the seat. On my 135, I can raise and lower the auxiliary circut without touching the position lever and leaving it in the constant pumping position. It seem to me that you could do without the single spool valve in the circut and control the up and down of the auxiliary cylinder with the position lever unless you would and a return line back to the differential case.
I don't know why, but in some ways it seems these older Massey's weren't that sofisticated in the auxiliary hydraulics as newer tractors. My opinion of course. I'm sure someone more knowledgable may disaggree since the invention of the Ferguson system.
Hopes this helps and does not make it more confusing.
good luck
namyessam