Originally Posted by Ohiobrits
Couple of updates. I did speak with Sean and he will send a replacement jack at the end of the month. All his inventory is "on the way out" on hitches. He gave some advice on disassembly which I may try this week if I have time. He suggested inspecting the threaded rod that runs up the center of the jack and cleaning it up if there is some thread damage.
SteveSueMack, BAL has a tongue jack that has the same silver cover and a side manual handle. Sean probably has a version made without the foot would be my guess.
I did disassemble the jack to take a look at it and regrease. Some photos below in case anyone else needs to do this.
You will need to remove the straps that connect the jacks to the WD bars so remover the 2 lock nuts on the bottom of the U bolts, move the WD bars out of the way and lift the strap up off the jack. Note - I would recommend replacing the lock nuts, they are only a few cents and you do not want them coming loose.
Once that is done, remove the silver cap off the top of the jack. Use a flat blade screwdriver to ease the bend over tabs out a bit and it pops off.
You will now be able to see the gears.
There is a roll pin that holds the vertical bevel gear in place. Use a suitably sized punch to drive it out. The shaft can then be removed with the gear. Backside view of gear is below showing the notch for the roll pin (with pin in place) and notch for the dowel pin used for the horizontal gear.
The horizontal gear will just lift off using a flat blade screwdriver under the edge for leverage. It's a pretty snug fit.
Once off, the jack sleeve just lifts off vertically. Once the jack sleeve is off, you will see the threaded rod with a bearing on top sandwiched between 2 washers. The top washer will probably be stuck to the top of the jack sleeve so make sure you do not lose it.
I don't have pictures of the threaded rod (I was covered in grease by this point). My rod looked OK but did not appear to have any grease which I fixed 😀
Reassembly is the reverse. Tap the roll pin back in using a hammer to get it going and use your punch to drive it home. The whole process is fairly easy to do. If your jacks are getting a bit stiff or noisy, you may want to consider this maintenance. I found replacement roll pins at Lowes but no punches, Tractor Supply had both.
My jack is now a little better (I can almost get it up to 6" with my drill) but it is still noisy. I think the bevel gears are not properly aligned which has been an issue from day 1 it would seem. It was more noisy right out of the box than the other side. Probably just getting worn now which is making it worse. I'll be fitting a new one at the end of the month.