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My neighbor broke the tongue jack on his trailer and needed it replaced. He did''t want to go with another screw style jack, so we decided to go with an hydraulic one. Picked up this one from NorthernTool:So that he doesn't have to sit there and jack the thing for an hour in order to get the plate to the ground, I modified it and built a mount for it so that it's a matter of pulling the two pins and sliding the jack to it's closest position to the ground, then it just has to extend a little bit.I had to cut the round pin mount off of the jack, then make some plates with a little 1/4" lip with 5/8" holes drilled through to match the mount. Here's the tooling plate setup to weld the lips onto the plates that got welded to the jack:Here's the jack assembled to the mount that I machined. The pins are 5/8" diameter with the holes on the mount being 5/8" with 1.5" spacing. The slot milled into the mount allows you to move the jack up and down without it falling off when you remove the pins. It is a bit heavy though...the mount is 17" long and 2.75x2.75 square stock.--Wintermute"No man's knowledge here can go beyond his experience." - John Lockewww.improvised-engineering.comManufacturer Agnostic:Blood----------Sweat---------Tears----|------------------|----------------|----Lincoln Red, Miller Blue, Esab Yellow
Reply:what was wrong with the rotating mount? you jack it to height once and then just rotate it up once it's off the ground when you are trailering. seems like an aweful lot of work for something that is almost a set in and forget it situation. I've seen a jack with the same principal but the adjustment was in the leg, not the mount to the trailer.There are no problems. There are only solutions. It's your duty to determine the right one.Hobart Handler 210Airco 225 Amp MSM Stinger
Reply:No room to rotate it in between the tongue frame as a start. Also, if the trailer was empty it'd put the foot of the jack about 8" off the ground, but when fully loaded, you wouldn't be able to rotate the jack because it would hit the ground even when fully retracted.Yup, alot of work, but it'll do what it needs to. It would have been nice if this actually had adjustment in the leg though...wouldn't have had to spend a ton of time machining .--Wintermute"No man's knowledge here can go beyond his experience." - John Lockewww.improvised-engineering.comManufacturer Agnostic:Blood----------Sweat---------Tears----|------------------|----------------|----Lincoln Red, Miller Blue, Esab Yellow
Reply:That looks great - I love the idea. Looks sturdy too. Thanks for sharing - I like the close shot of the beads.Hobart LX235Victor 250 Oxy-Acetylene Rig (welding and cutting)Bobcat 773F-350, 1999, 4x4, 16' 10K# trailerOutdoor Wood Burner - 10 cords/year
Reply:Can we see some pix in the final mounted position on the trailer? Looks like quit a bit of machining and drilling to get to this point. Would like to see how it all comes together in the end.
Reply:Yup, I should get the old stuff off of his trailer this week or over the weekend and get this mounted up at the same time. I'll post pics as soon as it's done --Wintermute"No man's knowledge here can go beyond his experience." - John Lockewww.improvised-engineering.comManufacturer Agnostic:Blood----------Sweat---------Tears----|------------------|----------------|----Lincoln Red, Miller Blue, Esab Yellow |
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发表于 2021-8-31 23:31:25