Hi everyone, new here and new to case tractors. Recently bought a '77 model 1370 and had it hauled home due to leaky steering cylinders. Repaired the cylinders, topped it off with hydraulic fluid and took it for a spin. Noticed loss of pulling power in high gear on the road. Learned about Hytrans fluid and the potential damage if not used, so I drained the fluid, pulled the PTO cover, washed the suction filter out with diesel 3 different times (it was covered in sludge), replaced filters and topped off with hytrans. Started it up and drove around in the yard for about 30 minutes, Transmission filter pressure was on the low side of green, transmission pressure was middle of green, trans temp in green. PS worked great in ranges 1 - 3, but still noticed loss of power in range 4.
Next day, started it up and drove about 40 feet then lost forward in every range, will only move in reverse. Also lost power steering. Transmission filter pressure bottomed out, transmission pressure bottomed out. Thinking it may be the reverse lock out on the Control valve? Is it possible that the charge pump is sludged up since I cleaned the strainer? Also, didn't notice any fibers while cleaning the strainer, just gunk that looked like old dirty oil. Any help would be greatly appreciated. Really like this old tractor and plan to restore, but need to get it running first!
Next day, started it up and drove about 40 feet then lost forward in every range, will only move in reverse. Also lost power steering. Transmission filter pressure bottomed out, transmission pressure bottomed out. Thinking it may be the reverse lock out on the Control valve? Is it possible that the charge pump is sludged up since I cleaned the strainer? Also, didn't notice any fibers while cleaning the strainer, just gunk that looked like old dirty oil. Any help would be greatly appreciated. Really like this old tractor and plan to restore, but need to get it running first!
