How to correct a bad weld.

   / How to correct a bad weld. #21  
A weldable collar type jack would probably worked better in this situation.
 
   / How to correct a bad weld. #22  
Add 2 triangular braces on each wheel as shown?

attachment.php

I'm looking at the pix and thinking that the welds holding the jacks bracket to the square tube are what broke. They have good length front to back, but not much to hold them from side stress. For some reason I don't think he welded the round tube of the jack. I'm thinking he needs to install a side gusseted plate to the top of the square tube to bolt the jack to.
 
   / How to correct a bad weld. #23  
I'm looking at the pix and thinking that the welds holding the jacks bracket to the square tube are what broke. They have good length front to back, but not much to hold them from side stress. For some reason I don't think he welded the round tube of the jack. I'm thinking he needs to install a side gusseted plate to the top of the square tube to bolt the jack to.
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That's what I'm seeing.

The jack's bracket was welded on in a way it wasn't intended to be welded on when it was designed. That's why I say to add a short second tube and weld the flat side of the bracket to the sides of the tubing.
 
   / How to correct a bad weld. #24  
The whole 3ph mechanism will rise all the way to its stop before the top illustration happens. Only extreme circumstances are sufficient to cause this.
larry

I do agree with more gussets too but you are still putting a lot of stress on the gauge wheels and tubing.


Have you ever brush hogged with a solid top link

My neighbor did it with his 8N and broke the the top link bracket off the rear of the tractor but this might have been a extreme situation.

To level out the best thing is a long wheel base with the blade between the wheels like a road grader. This will average the humps out the best.

tom
 
   / How to correct a bad weld. #25  
A bushog is too long for a solid top link.
larry
 
   / How to correct a bad weld. #26  
Hes got a bolt on Jack. He's welded the bolt on portion to the square tube. :D

That's the weld that breaks.:eek:

The first rule of welding critique is "Look at the Pictures"
 
   / How to correct a bad weld. #27  
Also the welded bracket is galvanized and welding that to steel is very poor fusion, generally messy looking and fails every time.
Grind clean, add gussets and should be OK.
 
   / How to correct a bad weld. #28  
Probably chinese mystery metal, too.

You could remove the jack, weld on a bracket the same size or larger as the jack mounting plate and then bolt or weld the jack mounting plate to the bracket on all four sides.
 
   / How to correct a bad weld. #29  
Poor photo editing on my part, but general idea would be to add a mounting bracket to the tube and then move the jack mount onto the bracket. The bracket would be on the outside edge of the tube and not the inside.
 

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   / How to correct a bad weld. #30  
when all else fails look at how the commercial units do it.
ETALR-3.jpg
 

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