Hey y'all- new to forum- I have a '85 Ford 1910 4X4 that was my late dad's. I've had about a year now. I used it this summer doing bush hogging without incident. Tried to use it the other day after 8" snow to scrape a driveway and lift picked up scrape blade very very slowly. I checked the hydraulic fluid and it was very milky looking. The temp outside was about 30. I drained the fluid, which had a lot of water in it and replaced hyd. filter and fluid the next day. Temp that day around 45. Let tractor run for 30-45 min. and lift would try to lift blade but would not lift scrape blade off ground. I checked the fluid again and was milky also. I drained fluid with a lot of water( I think some had frozen and had just thawed out), replaced with new fluid the next day. Temp that day was around 54. Let tractor warm up for 30-45 minutes, tried lift and the same thing. The lift tried to raise but not enough to get Scrape blade off ground. I checked fluid again, and it seemed normal colored (hopefully all the water was gone). I did loosen hydraulic lines and tried to flush out with new fluid best I could. Still just partial lift on 3ph. I read an earlier post about a model 2110 had a screen on return line from sump that had similar problems and screen was cleaned and worked like new. I have an IT Shop manual but it shows nothing of a screen on model 1910.Does anyone know anything about this or have any suggestions?? When I first drained fluid from tractor there were two plugs, one under transmission the other under rear axle. The one under rear axle acted like there was some sort of screen in botton of sump. I could slightly push up on it with a screwdriver and more fluid would run out. I was too small a hole to get a finger up there to feel exaxtly what it was...........maybe it was ice in the bottom of the sump from all the water???????................ANY help would be appreciated!!!!!!