What is this Pin Called and Why is it Loose?

[DanielDD]

Brand spanking new E12 rotary cutter connected to a new 5090E tractor. The pin connecting the cutter to the tractor seems to be loose to me, although the dealer salesman tells me it the right one. However, when you stop the tractor, you can feel the cutter move slightly due to the slop/play in the pin. Maybe its designed that way, but I figure after a significant amount of time the the pin would break due to it not being more secure. Also, what do you call this pin?

Thanks!

 

[bcp]

Hitch pin. It appears you have a hinged clevis, so you don't need a loose pin fit to allow going through hills and valleys. They are available in different diameters. Use the largest that fits. A little slop is normal.

Bruce

 

[DanielDD]

Thanks Bruce!

 

[beenthere]

Could be bigger diameter, but nothing unusual about the pin shown in the pic.

 

[4570Man]

It looks like you could put in a bigger pin to tighten it up a little.

 

[npalen]

Does the mower have the swivel type hitch/drawbar on it that will rotate to allow lateral tilt? If not, the pin needs to be small enough to allow tilt without damaging the hitch or tractor drawbar or breaking the pin.

The narrow stance when the wings are folded up makes these gull wing cutters a bit unstable. Be careful when, for example, pulling into a field at an angle thru a ditch.

 

[bcp]

That may be JD's self-leveling clevis, not a hinged one. It looks like the bottom hole is oval to allow hills and valley travel, but you will need some slop to allow for the tractor and mower to tilt in different directions left and right. Without knowing your property, and a better look at the hitch, I'd say leave it like it is.

A sloppy fit between hitches and pins is the farmers "ball hitch."

Bruce

 

[DanielDD]

John Deere parts breakout calls it a Clevis Hitch. I looked at the parts diagram and you can see that the top and bottom of the hitch has an enlongated hole that are perpendicular to each other...

https://partscatalog.deere.com/jdrc/sidebyside/equipment/3434176/referrer/navigation/pgId/231087888

I guess I need to stay with the current hitch pin...

 

[Popgadget]

Yup. Looks like it’s designed to provide movement in two axis’.

 

[DanielDD]

But...how do I know this is the correct sized pin? I can't find any documentation on what the correct pin size is supposed to be. The current pin diameter is 3/4 inch. I'm going to measure the clevis hitch opening and see what the size is.

Just as soon as it gets cooler outside. Its too hot to go out and look at it right now...

 

[Sawyer Rob]

That hitch pin is just fine...

SR

 

[bcp]

Measure the narrow dimension of the clevis oval holes. Measure the tractor's drawbar hole diameter. Use a pin equal or next smaller than the smallest dimension you measured.

Bruce

 

[beenthere]

Your pin is good to go. Plenty big for this job and attachment.

 

[npalen]

John Deere parts breakout calls it a Clevis Hitch. I looked at the parts diagram and you can see that the top and bottom of the hitch has an enlongated hole that are perpendicular to each other...

https://partscatalog.deere.com/jdrc/sidebyside/equipment/3434176/referrer/navigation/pgId/231087888

I guess I need to stay with the current hitch pin...

Thats interesting. Bet that Deere has at least applied for a patent on that.
I wonder about the purpose of the spherical shape on the lower tang of the casting.

Land Pride

www.landpride.com

Landpride has a different way of allowing float in both directions

 

[bigtiller]

About the pin its self.

I like Speeco double locking hitch pins. Double Locking Hitch Pin, 79285 | Agri Supply

It is nearly impossible for tall weeds, corn stover and brush to unlock it. Much safer than using a hairpin to lock the hitch pin in place.

 

[jthibodeau89]

I call it a lynch pin. Needs to be same size as hole in draw bar and ball joints. There should be a little clearance to allow install. Maybe 1/16".

 

[Brown Dog]

Pin in pic is too small.

I broke a 1” pin & stepped up to a 1-1/8” diameter pin.

i can’t stand loose or a sloppy fit.

 

[beenthere]

Pin in pic is too small.

I broke a 1” pin & stepped up to a 1-1/8” diameter pin.

i can’t stand loose or a sloppy fit.

The slop was on purpose, to give two degrees of freedom.

Your 1" pin may have been too big, and now with the larger diameter, something else will break. just sayin....

 

[Seven Gables]

The slop was on purpose, to give two degrees of freedom.

Your 1" pin may have been too big, and now with the larger diameter, something else will break. just sayin....

I understand what your saying Beenthere you can go too big and about completely remove any movement between the pin ,clevis and drawbar which stresses the pin . That's not good. From picture though I'd say that 3/4 pin is like a hot dog in a hallway.

 

[Brown Dog]

The slop was on purpose, to give two degrees of freedom.

Your 1" pin may have been too big, and now with the larger diameter, something else will break. just sayin....

You want proper size pin when your implements hitch swivels & pivots both directions