Kalmar C50:
Lift cylinder ram seized in mast

I had to replace seals in both lift cylinders, the mast is a liftek 50 DMT. I cannot get either ram out of the mast. I used my snap-on impact hammer, used a 3/4-in brass punch with a 5 lb Sledge. I also heated it for 30 solid minutes and I only got it to budge a quarter of an inch. I disconnected the bottom of the cylinder. Tried to pull it out of the bottom, to reseal it that way, but it wouldn't come out due to a crossmember in the way.

I'm looking for any other ideas such as different presses or pullers to get this out. One thing I did think of is disconnecting the bottom of the lift cylinder and plugging it. Use the other lift cylinder to raise it up in the air and then possibly disconnecting it that way? Thanks
  • Posted 9 Feb 2025 01:19
  • Discussion started by Michael_Brown
  • Ohio, United States
Showing items 1 - 2 of 2 results.
To take the cylinders out you could do it the way you said at the end of the post or put the hoses back on and raise the mast to the top then chain the mast to the stage that does not move and disconnect the snap rings at the top of the cylinders and lower the cylinders to the end of the stroke than remove the cylinders and take them apart in a vice just make sure it is chained correctly as if not it will drop be careful.
  • Posted 16 Feb 2025 10:06
  • Reply by Scott_
  • Pennsylvania, United States
Scott
Hey Michael,

If you email me at scottm at superioreng dot com, I will provide you with a contact from Lift-Tek who can help you with your issue.
  • Posted 14 Feb 2025 02:58
  • Reply by Scott_McGonigle
  • South Carolina, United States
Scott McGonigle

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