JB4310 -
Those clevises look like a good way to attach your rear chains. It was hard for me to see, but I assume those are in the upper mounting holes for your BH subframe. Did the clevis pins fit the holes well, or did you use a bushing?
Also, any significance in the purple and brown color for your ratchet binders? Your tractor looks very secure.
- Marty
Yes they are in the backhoe frame with bushings, these are alloy ones rated higher than the grade 70 chain, the slip hooks are rated 6600 just like the chain.
I had a thread started about binding down equipment where I mentioned that if I didn't have these holes available I'm not sure where I would connect on the rear, also if I do have the BH on, not sure where I'll connect.
The purple binders are alloy from AWdirect which are rated for use with 3/8 grade 70 chain, I think they are 6600# maybe higher. The red ones are China binders rated for G43 chain (5400#) I got these for free with the trailer, eventually I'll upgrade them to the grade 70 stuff. I think I read somewhere that if your pulling one corner down with a certain grade/rated chain and binder then the opposing side should have an equal rating.
Regarding OP's question about binders on just the rear.
After looking at my picture of the rear of my tractor in post #12 of this thread, you can see how high the chains are tied to the tractor above the axle line. Now imagine no chain at all on the front, what would happen when you start cranking down the rear binders? If the brakes are locked like they should be, then the front would start rising as the tractor hinges on the axle.
So you can see the front chains would not be pulling the front of the tractor down they would be just preventing it from lifting, especially when the front chains are connected low on the front of the tractor and out in front of the tractor to the trailer.
Don't know if this idea makes any sense but that's what I was thinking looking at the picture.
This brings up another issue that has not been discussed as far as I know, that's the angle of the chains, I read on the warning tags on the new binders something about a minimum angle of 30 degrees down from and away from the connection point on the load being bound. That would be tough to comply with in all circumstances.
JB.