Bent a piston rod in my boom cylinder

   / Bent a piston rod in my boom cylinder #1  

Frankman

Member
Joined
Mar 10, 2012
Messages
38
Location
Erie Co. PA
Tractor
None yet
Was digging a ditch today and while busting a root I bent my hydro cylinder rod... Never would have thought it would have happened.... Still don't even understand how.. Anyway, does anyone have a source for a replacement piston rod that is reasonable? Part # is woods 37878. Maybe a local shop can find one for me, just figured you guys may know. Thanks.

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   / Bent a piston rod in my boom cylinder
  • Thread Starter
#2  
Sorry almost forgot to tell you what i have! I have a Kubota 4610 and a woods BH9000 backhoe.
 
   / Bent a piston rod in my boom cylinder #3  
Impressive wish i could help you with replacement parts. Its never a good felling knowing you just broke something not knowing how you did it
 
   / Bent a piston rod in my boom cylinder #4  
Many hydraulic shops can make a replacement rod.

Bruce
 
   / Bent a piston rod in my boom cylinder #5  
I am curious, would you describe what you were doing at the time? I am trying to imagine scenarios that would lead to that failure. Thanks and sorry, never fun to have a failure.
 
   / Bent a piston rod in my boom cylinder #7  
OUCH man that's not good if you did that kinda damage to to the rod make sure you check fel arm's to make sure there not broke or cracked. sorry i know it sucks you got work to do and can't do it.
 
   / Bent a piston rod in my boom cylinder #8  
In order to bend a shaft that is extended, you use another cyl/component and a mechanical advantage to apply more force.

What would happen if you bury the bucket 6 ft in the ground and tried to back the BH about 8 ft. the work port reliefs might go off, or the force might blow a hose or burst a fitting.

Mechanical forces are now involved by generating hyd force, and mechanical force. You might have a 10 to 1 relationship on the dipper to the boom.
 
   / Bent a piston rod in my boom cylinder #9  
I am curious, would you describe what you were doing at the time? I am trying to imagine scenarios that would lead to that failure. Thanks and sorry, never fun to have a failure.
Yes! Figuring out how it happened is the way to keep it from happening again. One would expect a factory system to be suitably strong and tailored by hydraulic limits to be self protecting. Could there have been mechanical interference involved - either in the instant case or a prior one that bowed the rod?
larry
 

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