3 point not working

[RCHamblin]

I have a 72 Ford 2000. The 3 point don't work until I prime by blowing air into the housing. I need to prime everytime I use it. Sounds like a check valav to me but which one? Anyone have any ideas?

 

[davesl708]

Hi. Welcome.

Could there be a leak allowing air in and draining the fluid back to the tank requiring the prime?
I am not familiar with the Ford 2000 but I am sure others on here are.