Can this cylinder rod be welded ?

   / Can this cylinder rod be welded ? #1  

Kyle87

Member
Joined
Jan 5, 2019
Messages
31
Location
Poughkeepsie NY
Tractor
None
I had the rod end of a swing cylinder on my farmpro backhoe snap unfortunately. Are there any suggested methods to repairing it or am I stuck replacing ? Thank you 62839714324__6F41BFE1-4C42-4A93-B41E-D4E31CAF8313.jpg
 
   / Can this cylinder rod be welded ? #3  
Two issues with with welding it back on. If it’s cast iron it is a no go, and if the wiper ring is right up tight to the end then there will be no clearance for a weld.

Replacing or making a new rod would be the best choice for a repair. A capable hyd shop can make it easy.
 
   / Can this cylinder rod be welded ? #4  
It can be welded but most likely will not hold. If you have a welder and want to try no harm. I would grind as much of a V as I could and build it back out with multiple passes.

Replacement is certainly better and will limit your down time in the long run. :thumbsup:
 
   / Can this cylinder rod be welded ? #5  
If there is room for welding and you replace the clevis with steel (if it was cast) , I see no issue at all welding it. Good welds and penetration using a real welder. Many rods and rod ends are just that.
 
   / Can this cylinder rod be welded ? #6  
I would grind it and weld it back on. You should be careful not to bottom the rod on that side when you swing in that direction.

For a backup I would measure everything and look for generic cylinders to replace them with if you can find them. Not sure if they match a standard design or if they are too proprietary to match.
 
   / Can this cylinder rod be welded ? #7  
My take on this, would be to take the broke threaded piece inside the rod ball end.

Then chuck the cylinder rod on the lathe, face off to clean the broken remaining. Then drill and tap for the same size thread it had and use a piece of all thread, or cut the head of a bolt off or machine a short threaded stub. Finally, would simply thread the ball end to the rod, probably with some sort of thread locker. Hopefully I explained this clearly.

But I do have a lathe though. It's not technically necessary for this repair but does make things easier.
 
   / Can this cylinder rod be welded ?
  • Thread Starter
#8  
IMG_2647.jpg
Thanks very much for the replies and suggestions. Here is another photo of the other cylinder where the threads were not damaged however the rod end is also cracked
 
   / Can this cylinder rod be welded ? #9  
Might want to call one of the parts suppliers and see if they can source new rods and kits for them.
 
   / Can this cylinder rod be welded ?
  • Thread Starter
#10  
I tried keno circle g and affordable but none said they could get any parts for the cylinders, just a replacement
 

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