Could you all help me with my 9n hydraulics?

[Joe Arras]

My 1943 9N runs great, but lately, it is stubborn in lifting the 3 point arms...I just changed the fluid, and found a pin-like a 1/2" of 16 penny nail, with a flat head, in the drain plug. I took the pin out, filled it up with fluid, and proceeded to mow the old hay field-worked fine. Today, I went to move it to the shop to change the oil, and the arms wouldn't raise. played with the raise/lower handle, then after a bit went up! I can lower maybe 1/3 of the way down and lift it back up, and it works, but lower it all the way down, and you really have to play with the handle to get it to go back up. I'm great with engines, but my sausage fingers are sorta clumbsy in small places...but, could anyone tell me what that pin might be, and how to fix the ol' girl? By the way, the pin does not have a hole to a cotter pin, but does look like it has a slight dimple on the bottom pin part. Thanks much!

 

[Bern]

Post this question in the 8N-9N forum, you'll get a lot more responses.