HELP 1641 hydro gear pump quit
 

:beatdeadhorse:tractor wont move. but hydro deck goes up and down.just makes a loud hydraulic whining sound. need a pump I think.cant find a new one. I would like to find a used one if I can. or someone to rebuild it.

Is the oil full? Did you change it recently? What about the filter? Is the release valve pulled up?

I'm parting out an 1863. I think it probably uses the same hydro pump as the 1641, but I'm not for sure. If you can use it, PM me and maybe I can help you out.

Should be the same looking at Parts Tree.

look at parts 20, 21 and 22 on the Parts Tree blowup of the hydro. That is the relief valve that the knob on the trans cover pulls against. I just scrapped out a 1641 tractor that wouldn't pull itself. That valve looked like it was depressed and wouldn't come back up. This was after the tractor was picked up my a fork lift.

I don't know why I can't post the image but it doesn't work and I'm out of time.

May not apply here but worth a look.

And now I see this.....................

http://www.onlycubcadets.net/forum/s...960#post329960

Here is what I have. It is a ported pump for use with hydraulic deck lift so It should work.