![]() Is anyone aware of whether the boom swing cylinder conversion (rotary swivel cylinder to tandem straight cylinders) is still available?ĭale wrote. Since we are on the subject, I have a question for Digitup or whoever else can speak to it. If you need specific questions answered, I will try to do my best. The parts/operator's manual is invaluable- I couldn't find it through Deere but was lucky enough to get one on Ebay (don't see them much on there). I didn't know about that when I bought mine- it doesn't seem worse for wear but I would have liked to known at the time. Apparently it will put a lot of stress on the cylinder if transported without. If you decide to buy and transport, be aware (at least on the 50) that there is a transportation pin that is supposed to be in place to hold the swing cylinder in place. I forget exactly where the serial number plate is on the backhoes- I thought it is on the boom but I'll have to look to be sure. I am looking at putting detachable counterweights on my 2010 when i am not doing backhoe work. The downside is doing loader work you will not have a counterweight so you'll have to be really careful about how you manuver with a loaded bucket. I am missing the plate that protects the hoses on the bottom- you may want to see if the hoe you are looking at has the plate or not. I would second what Digitup said about detaching the backhoe for loader work not only is it very heavy on the rear when going over rough ground but I also found that I was always either dragging the bottom of the boom (where the hydraulic hoses are) into the ground or having the stabilizers catch the ground (I have one that leaks down). Here are the two sheets for the 50 and 93: I have since fixed my reference above for the 93. The reference for the 95 (as a slider) is correct. I did have a mistake in my list- the 94 was apparently for wheel tractors only so I meant the 93 (that's what I get for doing during my lunch break). ![]() I posted the link for specs on these hoes under the "Web Links" forum. Cracks or welds on the main boom would also probably affect value significantlyĬosts I have seen on EPay range from five hundred for Model 50s in poor condition on up into the several thousands depending on age, model and condition. Supposedly there was a conversion kit for the rotary swing cylinder to the tandem cylinders but haven't heard about the status of it today. ![]() I own the Model 50, and have heard that parts for the rotary swing cylinder are obselete. Similar to the 9300G except this backhoe attachment was for the 350 series crawler loaders and dozers and the 450/550 series dozers.Īs to worth, I would think it would depend highly on the age, model, and the condition. The spec sheets I have show them made in the late 80s. They are "center of tractor" but used the tandem double-action cylinders for boom swing instead of the rotary vane swing cylinders. This backhoe attachment was for the 450G/550G/650G series dozers and 455G/555G series crawler loaders. This is similar to Model 93 except they were made in the 80s for the 350/450/550 and 355/455/555 series dozers and loaders. Pretty similar specs and they also had the rotary vane swing cylinder. ![]() These are similar to Models 50 and 51 respectively except they were made later in the 1960s and were made for 350/450 series crawlers. ![]() Both used the distinctive rotary vane swing cylinder to pivot the main boom- sort of looks like a big donut. The model 50 is a "center of tractor" model (pivots at the center of the bracket) while the 51 is a "slider" model (backhoe can be slid to left or right of tractor on the bracket to dig along walls, etc.). The spec sheet I have for them is during the early 1960s. These were apparently for use on the 1010s and 2010s and possibly the 440ICDs as well. Someone may need to fill in some of the lineage I am presenting- it could be incomplete: These attachments could also be used on some JD wheel loaders and I'm not going to specifically mention the models only used on the wheel loaders- only those I know could be used on crawlers. Lavoy or others can give you more specifics. I guess I should first state as a given that you would need a "hoe" crawler because they were specially equipped with a heavy duty backhoe attachment bracket and the hydraulic system to handle a backhoe. I am by no means an expert on the backhoe attachments but will give you my $0.02 since I own one and have read up on some of the specs. ![]()
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