Farmall Super C Rear lift control valve

[BUTTERBEAN]

I have a Swisher XTZ-60, a Hinomoto E-2304 with FEL (no front wheel drive)and 3 Farmalls (1 200, and 2 Super-Cs) the 200 I use has a problem lifting a bush hog. It used to lift it enough to cross terrace rows and cut around different obstacles but would not lift to transport the mower down the road. I changed the hyd fluid but not the filter and did not clean the screen (have no found the location of the screen). I used hydrostatic drive hydraulic oil from TSC which seems thinner than what was in it. I also re-built the rear cylinder and stop valve, which works fine. The cylinder travels all the way up and down without a load and with me standing on it (about 270 lbs.) but will not lift the tractor wheels or the mower. I see some leakage around the control valve boot and want to re-build the thing. I ordered the service manual which should come today. I have not found the part number for the valve assy anywhere online. Any tips or tricks to trouble-shoot this problem would be a great help. I have read pages and pages in the Hydraulics forum but not come across this particular problem there although have I have learned alot from you guys on hydraulics in general and am having fun with these tractors and stuff.

 

[J_J]

If you have good pressure, and I am assuming that you tested it, and you rebuilt the rear cyl, then that leaves the 3pt valve, the relief, and the safety valve. Did you check those? There is also a knob that adjust the decent rate, check that also.

I would recommend installing hyd gage in the system to monitor and trouble shoot the hyd system.

Check the PRV pressure for the hyd system first. If it meets the specs for the machine, then you have a good start.