JD quick tach?

davedj1 · Sep 15, 2021

I have to build a grapple for a JD, I don't know anything about the JD attachment set up other than I bought a kit. John Deere Quick Attach Bracket 1/2" 200 300 400 500 Loader Bucket Hooks Pins | eBay
The information I'm looking for is height and width of the pins and hooks.
Thanks in advance.
Dave

ETA: It's a JD 4310 if that helps

texasranger556 · Sep 15, 2021

JDQA dimensions?

Anyone have the drawings for the JDQA system? Namely center-center hook distance. I measure it being approximate 40.25" but it would nice to know for sure instead of being at one extreme of clearance.

www.tractorbynet.com

davedj1 · Sep 15, 2021

texasranger556 said:
JDQA dimensions?

Anyone have the drawings for the JDQA system? Namely center-center hook distance. I measure it being approximate 40.25" but it would nice to know for sure instead of being at one extreme of clearance.

www.tractorbynet.com

Thanks but nothing definitive there, the drawings are gone.

texasranger556 · Sep 15, 2021

Another google hit. 1-4 series loader JDQA spec

Rustyiron · Sep 17, 2021

Don't you have a bucket or forks that you can measure ?
It's only width and height numbers that you need. There may be a consideration for the angle of the mounting and the bottom attachment may need to be spaced away from the grapple frame, but this is more important with a bucket. If you don't check this you may not have much "roll back" at ground level for carrying. The other concern is "dumping" with the loader high as in loading a truck, it might not dump enough raised.
I suggest copying the factory angle for the best roll back and dump angles.