[AT] Hydraulic cylinder rebuild.

[Richard Walker]

> I rebuilt the outside one 5 or 6 years ago.  They are a 6 inch 
> cylinder x 4ft long with a 2.5 inch rod.  Everything Metric.  The last 
> time I rebuilt one I made a wrench for the rod nut from an Autocad 
> drawing and cut it with the plasma cutter then put it inside a 8 ft 
> piece of Drill stem.  I used a 2 inch dia. shaft to hold the rod end.  
> Held the rod down with one loader and used another to push the wrench 
> down. 


Grinning, because a dozen years ago I did something similar to 
disassemble a backhoe cylinder.  Burned a wrench profile from 1/4" 
plate, welded on a long steel rod handle, parked my Dingo skid steer 
atop the cylinder's butt end, and used a small gear hoist to pull 
between the wrench handle and a 5' pipe tong to unscrew the end cap.


Richard




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