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The next 2 pictures show
the final product. If anyone is interested I will be posting more pictures and a more detailed explanation in the week or two on Tractor by Net.The next 2 pictures show the backhoe attached with the wheel off for clarity. The backhoe can be detached by removing the 2 upper 1 1/2 inch bolts and then lifting the backhoe to unhook the lower 2 pins.
I finally finished the subframe. The pictures below show a test fit. The unpainted steel is the portion that gets permanently mounted to the backhoe. The other picture shows the painted components that get attached to the backhoe
I assume if a non-explosive demolition agent worked on tree stumps, a manufacturer would already be marketing it for that use. As for the use of an explosive demolition agent, I think the neighbors would mind. Some neighbors are even pushing to ban leaf blowers and other “loud” equipment.
Bob, maybe I will give it a try.
My tractor is a Luzhong 284. As far as I can tell most of the parts are identical to the Jinma. The diameter on mine is 18mm with 1.5 pitch for what ever that's worth.
Thanks Bob.
I had to bend 1/2 x 9 inch flat bar to get a 1 inch offset as part of the modification to the backhoe. As I don't have an acetylene torch, I needed to do the bend cold. I searched the web for help, but came up empty. I did bend some 1/2 x 3 inch bar as can be seen in the previous photos. I made a press using some old lumber from a defunct swing set and a 4 ton bottle jack. (see 3rd photo). If creaked a lot, but held up. For the wider bar, I made a bigger press and used a 20 ton jack. Although I used much larger timbers and more lag bolts, it wasn't strong enough. I had to reinforce it with angle iron (left over from the tractor crates). It's not very pretty, but it worked (1st photo) just barely (see bent bolt in 2nd photo).
I don't think the next smaller size jack (12 tons at Harbor Freight) would work. I had to really force the handle on the 20 ton jack.
The wood in the last photo was charred by my plasma cutter. Plasma cutting on a wood bench is probably not a smart thing to do.
