Quick hitch lower link pins

[mcfarmall]

Is there any particular reason why manufacturers put anti-rotation features on the lower pins on a quick hitch? I have a Harbor Freight and a Lee Agra Farm Hand quick hitch and both of them have a feature that holds the pin stationary.

The hair pin clip hole is oriented vertically when the pin is engaged in the anti-rotation feature so I can understand that perhaps the designer wanted to lessen the opportunity for the clip to fall out if the pin was allowed to spin freely. Just seeing if there is some other reason for the anti-rotation feature.

Here's the reason I ask. I found out more or less by accident that the HF quick hitch came with 0.775" pins to go in the draft arms. These pins should be 0.875" (as they are on my U.S. made Lee Agra Farm Hand quick hitch) and I'm going to make some new 7/8" pins for the HF. I'll have to drill out the holes in the quick hitch frame to accommodate the larger pin diameter for the draft arms. The quickest and easiest fix would be to buy a set of Cat 1 lower pins and a couple of finger getter lynch pins and be done with it.

 

[WranglerX]

My BE Cat 1 QH came with 7/8 pins and lynch pins and pins are free to rotate and have never been a problem.... Only issue is they were longer then needed but a bit PVC tubing as spacer keeps them where I want them...

Dale

 

[EarPlug]

The simple solution is to you a Cat 1 to 2 bushing



Bushing Kit-Quick Hitch Bushings | Agri Supply 77869

 

[mcfarmall]

The simple solution is to you a Cat 1 to 2 bushing

View attachment 658196

Bushing Kit-Quick Hitch Bushings | Agri Supply 77869

No, I'm talking about the lower pins that attach the quick hitch to the tractor, not the quick hitch to the implement.

Look on the outside of the left hand upright in the picture...see the little gray square plate between the hook and the tractor tire? THAT'S the pin that is undersize and has the anti-rotation feature. My HF QH has pins that measure 0.775" and the swivelly balls on the ends of the 3PH draft arms measure 0.875" I.D. a difference of 0.100" inches!

Thanks DLMeisen for your reply...sounds like the anti-rotation feature is a luxury, not a necessity.

 

[Fallon]

I've wondered the same thing. I've seen it in several of my & others QHes. Stopping the pins holding the QH to the lift arms really doesn't serve any purpose. Who cares if they spin a bit, it's not going to be enough to cause any noticable wear.