So this backhoe I bought is set up for 3 point but that is not how I'm mounting it, and the little Farmall 100 (Super A) doesn't have either 3 point or "fast" or "quick" hitch anyhow.
I've now got the lower pin support frame completed, and what positions the hoe at "top" is what amounts to a 3 point adjustable center (top) link. It came with one, seems to be 15/16 thread, and uses 3/4" dia pins, which fit the hoe. Please don't ask me "what class hitch."
I intended to unscrew either end to see if the tube was threaded further in, but neither will come out. It almost appears that they screwed on the threaded end collar, "bunged up" the threads to make them captive, and then welded the collar to the tube.
This link has to keep the entire hoe from tipping forward / back under heavy work load and jerking, etc
MY QUESTION IS how far out can I safely unscrew these as it needs to be fairly long. Would, say, 1" of thread "inside the tube" be OK?
Below, one of the support arms, 2" very heavy wall square tube, with 1/2x3" flat welded to outer side for added stiffness. Mount plates same material, 1/2x3, drilled together to match, 5/8 bolts. The mounted plate hole as you can see has been sawed open so the pin can drop down, then the outer plate bolted on to retain
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The hoe showing the lower pins which "were" 3 point
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The upper adjustable link attachment, which also "was" the seat bracket. 3/4" pin
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The adjustable upper link, 3/4" pins, 15/16 thread
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Showing the threads and lube? holes. The ends will not come out. Again, the question, do you think the tube is threaded further in, or just the welded collar on end? How much thread do you think makes it "safe?" Seems like the tube must not be threaded...............
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"How it mounts." You back up to it, and jockey to get it aligned. You get close enough to install the PTO pump, and now you have power. Diddle the hydraulics if need be to bet the mount pins above the bracket plates. Back on in, Diddle the pins into the slots, and install lthe retainer plates and bolts.
I've had that part done and so far so good. Tomorrow I need to work on the center / upper link