Brush hog shear pin problem

   / Brush hog shear pin problem #1  

mogwai

Member
Joined
Dec 31, 2010
Messages
35
Location
Shawano WI
Tractor
NH Workmaster 55
My mower shear pin is through the rear universal joint on the pto shaft. I致e replace a couple dozen over the years but this one left a small lip on the broken bolt that prevents the shaft from sliding forward so I can like up the pin and drive out the broken section.

I致e tried levering with a bar to no avail. My last guess is to block the mower and wrap chain around the universal To yank it with the tractor. I don稚 want to break stuff and that痴 what I might do with this approach

Any suggestions?
 
   / Brush hog shear pin problem #2  
If you can see the pin, could you grind the small lip off with a die grinder or dremel?
 
   / Brush hog shear pin problem #3  
Best of luck.
 
   / Brush hog shear pin problem #4  
Maybe try heating up the Ujoint collar? Then pry.
 
   / Brush hog shear pin problem #5  
A photo would help.

You know the yoke is retained on the shaft with a circlip? That shouldn't be a problem with your description but just in case you want to pull the yoke off the shaft.
 
   / Brush hog shear pin problem #6  
Can you line the broken pin up with the hole in the yoke and use a punch to drive the pin out.
 
   / Brush hog shear pin problem #7  
Best of luck x 2 and loose the tap-a-talk posting. Your posts will read much better.
 
   / Brush hog shear pin problem #8  
I do what Oldnslo said...
David from jax
 
   / Brush hog shear pin problem #9  
Pics would help
 
   / Brush hog shear pin problem
  • Thread Starter
#10  
Can you line the broken pin up with the hole in the yoke and use a punch to drive the pin out.

Getting all that lined up was the problem. However, liberal application of grease and a bigger pry bar finally worked. Broken bolt was driven out and replaced with a fresh one. And just to let you know, I headed into a rocky field that hadn稚 been mowed in more than 5 years and had to replace 4 broken shear bolts in an hour of mowing
 

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