Hyster S55XM:
Frozen rear tilt pin

Looking for a part number for the socket that fits rear pin?? access hole is not big enough for a std socket??? can enlarge 1/2" steel..pin is frozen and tried to heat,pound...no luck any Ideas? figured there has to be a special tool??? see newer ones have a zirk fitting on the pin head
  • Posted 2 Nov 2020 15:01
  • Discussion started by RickyHazard
  • Hawaii, United States
Showing items 1 - 5 of 5 results.
Had to finally rebuild in place. Worked fine after...interesting thing, just for **** and giggles I hit the rear pin with a air hammer again after it sat for 3days with penetrating fluid and it gave way!!! Go figure!!! After all that!!!
  • Posted 3 Jan 2021 07:14
  • Reply by RickyHazard
  • Hawaii, United States
Rebuilding it in place might be a workable idea if you can get to the gland ok.

I do remember doing one in place many years ago but I forget why, or what make forklift it was. I remember being unhappy with how well the piston went back in but I think the result was ok.

If this last Hyster pin hadn't finally broken free my next move would have been to cut a section out of the outer frame, and if direct heat didn't do it, cut the head off of the pin so I could drive it inward with a sledge. (swung by a younger mechanic than me) Welding the frame back and making it look pretty would have been a pain though.
  • Posted 7 Nov 2020 15:20
  • Reply by lumberjack
  • Maryland, United States
Thanks,I'll post a reply when and how I get this **** out!!!
  • Posted 6 Nov 2020 15:55
  • Reply by RickyHazard
  • Hawaii, United States
Thanks,that is exactly where I am at now!!! I have done every step you did except drill out 1/2" of the head...your right about the porta power, inner frame moves!! Was Thinking about a MagDrill to enlarge acsess hole?? Think I will try to drill our the pin and heat again?? Front pin did break loose with a impact gun after awhile. This one is frustrating as ****...ever try ohaul in place???
  • Posted 6 Nov 2020 06:05
  • Reply by RickyHazard
  • Hawaii, United States
I just had one of those on a similar Hyster. Found the pin was frozen most where it goes through the frame. It's bad design because the pin had to be driven out from the inside and it was impossible to get a straight shot at it. Removing the accelerator assembly gets you a little better angle. In the end I had to drill (1/2") it out in order to get good heat to the center of the pin, use buckets of penetrating oil and use a Snap On air hammer to get it out. A portapower cylinder would fit in at an angle but it was of no use.

Don't know how you are using the heat but the method I use most is to heat everything, pin included, to just short of melting then letting it all cool back down before oiling and pounding again. Had to do that three times on this last job. After 8 or more hours of beating on this one I was just about ready to completely drill it out or torch it out when it finally gave way.

Also, I noticed that a socket would fit over the flat on the pin but I doubted that would have worked considering how badly it was frozen. Maybe try using an impact on the rod-end pin to see how it works. (though the rod-end should be an easier one to get out. )

I wish you luck with it.
  • Posted 6 Nov 2020 03:22
  • Modified 6 Nov 2020 03:24 by poster
  • Reply by lumberjack
  • Maryland, United States

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