Mounting a grapple

[haforbes]

I've finally got around to getting a grapple for the digger, but I'm having a bit of an issue working out where to mount it. To me it looks like to pad on the dipper is too low, but I tacked it on further up and still had the problem of the arm catching the bottom of the dipper and bending it?? It looks like it needs a curved arm but I just wanted to check and make sure I'm not having a special moment.

[treequip]

Was it designed to go an a quick hitch?

[aspenarb]

Was it designed to go an a quick hitch?

 

My thoughts too. The way its mounted it is taking the whole grapple through an extended arc. I think it needs to go straight onto the end of the arm

 

Bob

[aspenarb]

Here is a picky of my home grown grapple on our 6ton digger. The bucket crowds round the lower pin and the tynes at the back stay still. It will still open up enough for a 1mtr dia stick.

 

http://arbtalk.co.uk/forum/attachment.php?attachmentid=138618&stc=1&d=1382719177

[roseyweb]

Hope this maybe helps

Edited October 25, 2013 by roseyweb

[tommytopsoil]

As a general rule, fully retract the bucket cylinder and have the top of the grapple 'flat across' like in your second picture. Fit the brace arm into the lowest position hole on the bracket and tack the bracket to the dipper. Drop the grapple off, fold her round and weld up. As the bucket cylinder is fully retracted during the set-up process, you cannot then over-crowd and damage the brace arm.

Your hitch is particularly deep however and has quite a step-back in the pin centres - I doubt this has been accounted for in the design of that particular grapple. As mentioned, the safest way would be to direct-mount and move the bracket into the appropriate position, however this is likely not the most convenient for you so I would suggest trying the above method first. Your main problem does seem to be the lateral distance between front hitch pin and dipper end pin though.

[tncountryservices]

I have just made a similar grab for a customer who was adamant he wanted to use it on his quick hitch, the only way I could get it to work was by spacing the mounting plate out on the dipper.

[onyx landscaping/fencing]

a friend of mine had the same problem ended up welding a piece of 4"x2" box section under the bracket with the 3x pin holes. this then gave it clearance

[haforbes]

Thanks for the help. Could I get around the problem by getting a curved arm made up then move the plate up??

[LGP Eddie]

Tommy is spot on with his mounting procedure, and to be perfectly honest the first thing you really need to be taking a look at is the quick hitch?

That is far from ideal on the geometry front and losing you a lot of power? Hard to tell the hitch manufacturer from the photo?

 

What is the carrier machine?

 

Eddie.