late 40's early 50's wd narrow with front loader q

hey guys and gals!
    my first post on this wonderful forum is in regards to a wd narrow front with i believe a freeman front loader.i had picked this beast of a tractor up a few weeks ago and all the hydraulics were working fine.one of the front lift cylinders had a bad leak and and i had eventually lost all my hydraulics.

i first refilled with hydraulic fluid and everything came back to life.i have just replaced both front cylinders with another set that does not leak.my problem now is i cannot get either the front loader or rear 2 point to do anything.i did notice i lost at least one gallon of fluid on the ground before changing to the newer cylinders.when i went to add new fluid to the pump i noticed it was showing full but it only took a half gallon of fluid.

i was told to bleed the system you could do a couple diffrent things.crack a line while the machine is running and or manual lift and lower the rear 2 point to get the air out.i have tried both and no results.i was also told to crack the 19mm spring loaded bolt on the top of the pump and wait for fluid to come out.that i did and it worked but neither the front nor rear work.

can someone please give me some ideas to trouble shoot this to get my hydraulics working again.my wife and i both pulled our vehicles in the garage due to a winter storm that just swept through and i have some snow removal to do,lol

                            thanks to all for taking the time to read this!!

Are you letting the tractor warm up? If it's really cold out, my hydraulics on the WD45 won't work until it has run for 5-10 mins, then they will kick in. Alot like The Power Steering on older John Deere tractors. Also, Make sure your lines are snapped in the remotes all the way. Try filling the pump up again, Are they the right cylinders? AC uses Allis Chalmers High Pressure Cylinders. Fill the pump as full as you can, And try to raise the loader, if it raises,  get it as high as it will go and poor more fluid in the pump, repeat untill it is all the way up as far as it will go.

wow fast replies!
 yes its cold here in central il.as of now i cant get the rear to to even work alone with the front disconnected.i will try to let it warm up and give it ago again later.we had it running for awhile but maybe not long enough.the cylinders came from another wd.il keep you guys updated.thank you

DO NOT over fill the hydraulics. If you do as ACWD45 says," Fill the pump as full as you can, And try to raise the loader, if it raises,  get it as high as it will go and poor more fluid in the pump, repeat untill it is all the way up as far as it will go. "you could be in for splitting the tractor and replacing the clutch,or at minimum cleaning the clutch, pressure plate and flywheel as there is an overflow vent up front that drains into the clutch housing. The hydraulic oil level is supposed to be checked with the rear lift arms extended. If my loader stops less than halfway up because of low fluid level, it takes less than a half quart to fill it and raise the loader all the way up. If you have a 20W transdraulic fluid in the tractor it should work with very little warm up time. Did you drain it before refilling? If the fluid is unknown, I would get it warm and drain it completely and replace with hytran fluid. There cold be ice in the system stopping the pump from drawing fluid and that isn't very healthy for any fluid compartment in the tractor. 

Edited by CTuckerNWIL - 13 Dec 2010 at 7:42pm