Backhoe newbie with 1301d looking for backhoe attachment ideas

[YM-135trac]

I went out and took a picture and posted it over in my hoe-description thread, with a copy below.

Since this hoe was sold together with YM240 by Yanmar-USA I assume somebody engineered the stress analysis. My GB loader sub-chassis further improves stiffness, so I think I'm ok. And it doesn't have the muscle that your larger hoe has.

What keeps the BH assembly from rising if I push the bucket down is its weight and the 'restrainers' just ahead of its 3-point pins. Here's my photo from the other thread. The three-point arms bear down on those restrainers. There are no modifications on the tractor, and my installation is as specified in Kubota's manual that came with the hoe.

Aside from that stiffer top link, the 'restrainers' are what absorbs stress. Most of the stress bears on the hoe assembly, not the tractor.

Likewise the stabilizers. I make the bh stabilizers take all the stress, by parking the tractor with its brakes off. I would much rather weld on the BH than replace a ripped out upper link bracket on top of the transmission, or a broken 3 point pin beneath the transmission.

I put slightly more information in the post containing the original of that photo.

I had been dreaming of a bigger hoe, but you just talked me out of it! My rig will do what I need, and it sounds like the next larger size is a tractor-destroyer. Was your Yanmar 7.5 ft hoe sold original with your 226D?

wizkidzulu, please forgive us! We didn't intend to hijack your thread. I hope this information is useful to you, particularly YM-135trac's description of his monster hoe that already folded up one tractor and may have injured the operator. Have we talked you out of a backhoe yet? Please tell us more about your rig, and your application. Do you have some photos?

yeah, I was thinking the same thing, maybe too much info for wizkid? sorry.

California, You answered all my questions. I saw your arm/lock hook-up in my hoe manual,after looking at it again. I wondered If my local tractor store $1 bin cat-1 pin was ever found itself hooking up a b/hoe like yours? just a thought?
manual says tie 3pt control lift lever down or use wing-nut thingy to keep lever all the way down. I guess you knew that.
Quote:
Since this hoe was sold together with YM240 by Yanmar-USA I assume somebody engineered the stress analysis. My GB loader sub-chassis further improves stiffness, so I think I'm ok. And it doesn't have the muscle that your larger hoe has. Yes, I think my hoe was OEM. Yes, I assume somebody sober engineered my hoe? I think mine is an Imitation or a practice build of yours? your chain runs in sprocket.--mine a pipe, not even a guide for the chain. no guide for hyd/cyl ,1 bolt on ea. end of ram,cyl barrel just floats w/only chain keeping cyl barrel oriented. Your pics did give me an idea, maybe I can weld chain guides on the pipe?
Don't give up dream about bigger hoe. I never put hyd guage on mine, but I would guess the relief is set lower than optimal? Thus not having digging force stated in the manual,but good enough, with good reach.You can always lower relief presure.My guess many dealers would do that mounting on lower hp tractors. If you don't need to dig deeper just keep what you have.I may dig 6' of ditch between moves,and you dig 5' so what. either beats a shovel.

I also saw that post where Valley had a small engine hooked to hoe/mounted on aviation cart? when work valve was pulled, engine would die(I would hope so) think about your 540 hoe pump running @1000rpm(I know youv'e tried it)then multiply that by 3(sm eng. runs@3000to3600rpm) If their hoe test/experiment hadn't exceded pump/main relief/sm eng. rig such a sudden action may have taken out the trees in the back ground of the pics and killed everybody w/in 10' of that experiment. Thanks for pics& info.