Farmall McCormick hydraulics

Dartman_hd

New User
Just wondering what makes my 300 (diesel) with a torque amplifier :) Leak down? Checked everything I could. Cleaned everything, replaced what I could. Would a bad hydro pump cause this? We use this tractor with our bar rake and if you dont pay attention it will start makin a lot of dust. Anyhow, thanks much.
 
There is a check valve on the top of the hitch cylinder that is not holding, or the cylinder is bypassing at the piston packing. The pump is not
responsible for holding. Jim
 
I did check the check valve. Didnt even think about the cylinder (duh) I guess after 60+ years it might be a little tired. Gotta love that stuff that last though. Thanks much,I will be giving it a look.
 

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