Rebuilt a Walker 93632 - One problem left

[Jeeper]

Recently picked up a Walker 93632 off craigslist for $30. Guy said it worked, but it didn't. It had a rattle can paint job so it looked decent. Got it home and noticed that there was quite a bit of surface rust on any non painted metal but overall in good shape other than needing a rebuild and the casters were in need of an overall.

I have it all rebuilt and it works great but one problem. I noticed the fulcrum pin is seized (due to rust) in main lift arm. Any ideas on how to free it up?


I have hit the threaded ends of the fulcrum pin with rust release and pulled the grease zerk and put some rust release in the hole but it hasn't freed it up yet. Maybe I should disassemble the jack frame and try to press the pin free? Or put the nut all the way on the pin and hit with the impact to try and spin it?

 

[Hiball]

I have pressed the stubborn ones out in the Past, There is a fine line of knowing when to back off and allow some penetrate time to work. I would recommend reinstalling the nuts to prevent damage to the threads prior to heaving on it too much. Obviously if you can get the shaft to spin it should come out, Might take some serious torque though.. LOL. If your not in a big hurry you can just keep introducing penetrant and see what happens or if you have the space just soak the entire lift arm area for awhile. It probably wouldn't be a bad idea to remove and clean the shaft and lube it up well after you get it broke loose. Unfortunately Hydraulic jacks generally get neglected in the maintenance department, Thus Here you are.

 

[pop pop]

Jeeper, I ruined one of mine that was frozen and had to have Hiball send me another. I was pounding on the end like you and the nuts were in place. Just stretched the nut.

On another, I was successful in doing the penetrant, then placing the nuts back on up to full torque and then raising and lowering the fulcrum while pumping grease into the grease fitting. The pressure on the shaft from the nuts against the side frame tends to keep it from turning while the fulcrum is trying to slip.

My next step would have been the shop press, but put something over the threads and push the shoulder.

 

[Jeeper]

Some time you have to go backwards before you go forward. Had the jack working on Sunday as seen in the pic below. It made some noise which was the lock washers on the fulcrum pin. Didn't notice it at first.


In order to get the pin out, I disassembled the frame to remove the arm. And here it sits.


I used the shop press to push out the pin. It didn't take too much effort as the rust release from WD40 was working and wicking. I have been impressed with that stuff so far. Will clean up the pin and the channel in the next few days. Also have to get a knew grease zerk.

 

[Jeeper]

Got everything back together and it is smoooooooth. Amazing how nice it gets when each pivot point, wheel, caster has grease on it.




Need to find another to rebuild.

 

[Jeeper]

Also going to reference the caster rebuild for future reference in case someone needs it. It can be found here: http://www.garagejournal.com/forum/showthread.php?t=248594 starting at post #8.