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54B Worked Too Good, Found The Weak Spot

8

8NChris

Member
If the site would allow me to edit my original post I would not have started a new thread.



Once the machine started digging as it should I found what was under the bubble gum weld. I thought about making a new arm. What has the group found to work for you?
Thanks, Chris


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(quoted from post at 14:21:37 10/12/19) If the site would allow me to edit my original post I would not have started a new thread.



Once the machine started digging as it should I found what was under the bubble gum weld. I thought about making a new arm. What has the group
Click to expand...

Looks like a length of square tube and a little welding should make it stronger than new.

TOH
 


I agree with TOH. I would get some thick wall square tube. I would cut a pair of triangular plates to provide both the cylinder attach point, and to also reinforce the center 1/4 part of the dipper.
 
The original appears to be 1/4". I figured I would use 1/4" to 3/8". This thing had been cracked for some time. It has a pipe inside of it I am guessing from the last time it broke.
 
(quoted from post at 20:33:07 10/12/19) The original appears to be 1/4". I figured I would use 1/4" to 3/8". This thing had been cracked for some time. It has a pipe inside of it I am guessing from the last time it broke.
Click to expand...

Rough engineering rule of thumb - bending moment of square tube will be 33% greater than round tube of the same wall thickness. If the original round tube is 1/4 wall square tube with 5/16 wall will be roughly double strength. For reference I just recently paid $170 for a 24' stick of 5/16 3" square A36.

TOH
 
This would happen 600 miles from home, I will tear it down when I get it back. I will likely stick with original appearing round tube.
 
(quoted from post at 15:49:32 10/13/19) This would happen 600 miles from home, I will tear it down when I get it back. I will likely stick with original appearing round tube.
Click to expand...

Sherman engineering switched to square tube and triangular brackets for the Model 54C dipperstick. I suspect we know why....

TOH
 
It is already 3/8" thick and been broke for a while. I like the original look. It depends how out of place square tubing looks on this tractor. Do you know the correct Sherman color?


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correct color would be red
Wain-Roy who made these for Sherman to sell tried reinforcing dipper stick and went to a rectangular weldment with model 54C over 6000 54B were sold and was the second generation model that Wain-Roy built. Wain-Roy built and patented the first all hydraulic side swing backhoe. the first backhoe they sold was to a power company in CT in 1947, and is sometimes seen at antique shows around Massachusetts
 
(quoted from post at 14:57:14 11/10/19) correct color would be red
Wain-Roy who made these for Sherman to sell tried reinforcing dipper stick and went to a rectangular weldment with model 54C over 6000 54B were sold and was the second generation model that Wain-Roy built. Wain-Roy built and patented the first all hydraulic side swing backhoe. the first backhoe they sold was to a power company in CT in 1947, and is sometimes seen at antique shows around Massachusetts
Click to expand...
t is sort of a flat red. I used the owners manual to find my measurements. It has been shortened in two places. So was this the first model with a hydraulic dipper?
Thanks for the information.


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54B was first model to have hyd cylinder on bucket good book on Amazon, "Wain-Roy and the invention of the backhoe"
 
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