Is the jack assembly removable from the coupler? Collar bolts removed, and it _looks like the shaft should slide out, but won't, even with lots of PB/time + elbow grease. The shaft is hanging too low for safe towing. One pic is of ours, one from a functioning setup , for reference. Yup we could just cut ours, but prefer not to if possible.
this is ours. Very stuck here.
This one is not ours, but for reference. Pic from other hadco post this forum (has been very useful, big thanks!)
I had this same jack on my 56 Aljo. I didn't try to remove it tho. If you could lift it up, it will be "short" enough below.
Hoping I'm not seeing welds around the collar? If so, you might have to cut them.
I would try heat at this point. Get the collar pretty hot (I use mapp gas and it burns HOT, so be careful if you use it) Heat above and below, it should break free... A strong floor jack might help it move if you whack it a time or two. It's going to be hard because you don't want to ding up the jack, so rubber hammer.
I agree with vikx. If you can get to to wiggle just a little bit, you've got it headin' your way. In addition, heat the collar on the top of the tongue where the jack comes through good and hot, then dump cold water on it. A lot of times this will "shock" it and it breaks the rust loose. Support the frame with a jack stand, put your floor jack under the jack foot and wrap a chain under your jack. This will give you more force to "press" out the jack from the frame rather than relying on gravity and the weight of the tongue.
just my opinion, didn't say it was a good one....... whitney
We never really grow up, we only learn how to act in public. '12 Weakender TD (homebilt)(43 States & almost 35k miles) '67 Shasta Compact '67 Bee Line Wasp
This might be worth a try if you have time. When you use PB blaster, spray it on(liberally) and then go around the perimeter of the top of the collar and tap it repetatively with a hammer. Do this many times a day. Also tap around the top the shaft of the jack. The vibrations from the taps will help the PB Blaster do it's job. Not saying it will work, but give it a try.
That salt air did a number on the jack. It may take a few days to get it loose IF it wants to volunteer.
You could also try hitting/tapping the shaft from underneath with a small sledge hammer. Not much room, I realize, but maybe worth a shot. At the very least give it some love taps. It might help the PB Blaster as mentioned above.
"I get that queasy how in the hell will this thing ever go back together feeling.” - PT
hi fine folks, updating and including pics in case our experience helps anyone else.
thanks again for wise suggestions that helped lead to SUCCESS.
• over many days, with repeated PB blaster applications, persistent tapping, and careful pressure from a floor jack, we were _finally able to coax Aljo's very rusty trailer jack high enough to be out of the way for safe towing. We did not use any heat as the trailer is very remotely located in an extreme fire hazard area, with absolutely no room for error. The scratch marks on the jack stem show first success. Very slow going. But it worked!!
• there was a weld on the jack shaft that was unclear. Because it was so very stuck, we used a snake microscope/camera (hah!) to view the inside and see if the weld would impede our efforts.
• purely aesthetic, but the 'wings' of the Hadco 'bird' handle on our jack were broken long ago. Looking for another.