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Old 05-16-2010, 07:39 PM
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Default Welding a frog, need some advice

since spring is about a month early here in the great white north, buddy barry wants the frog changed on the 1996 740A champion grader. he ordered the new frog from the dealer and now i get to weld it on the moldboard. need some advise.

thansk
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Old 05-16-2010, 07:54 PM
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I have done several loader buckets, the biggest was a Cat 988, in all cases I stood the bucket on end and usually two of us would run verts at the same time one on one side and one on the other running .045 innershield wire. I have never welded a frog on a grader blade but I think the same process would work in your case. If only one welder I would run one stitch on one side then two on the other then alternate the rest of the way up. IMO
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Old 05-16-2010, 11:09 PM
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I will ask the dumb question as I am not really sure about or do remember what the "frog" is and what's purpose is.

Fire away. Someone else besides me will most likely find the information useful with out them having to ask the question.

And it will interesting to see how the question is answered. What variations in what the "frog" is and etc.
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Last edited by Harvuskong; 05-16-2010 at 11:17 PM.
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Old 05-17-2010, 12:30 AM
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I didn't even know they were available as ready to weld on, only one we ever did we built one piece from scratch for a Champion 600, Used mild steel & 7018, don't know how well it lived as I left the job shortly after. I do remember stitch welding as digr said, outside ends first, then middle, then 1/2 way between middle and ends etc.
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Old 05-17-2010, 01:53 PM
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I don't know either, but would like to know too.
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Old 05-17-2010, 01:58 PM
calweld calweld is offline
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Quote:
Originally Posted by Harvuskong View Post
I will ask the dumb question as I am not really sure about or do remember what the "frog" is and what's purpose is.

Fire away. Someone else besides me will most likely find the information useful with out them having to ask the question.

And it will interesting to see how the question is answered. What variations in what the "frog" is and etc.
With a bolt-on setup, the frog is the part you bolt the blade to. Applies to scrapers, loaders, and graders. Normally a pre-punched, high carbon steel itself, but somewhat more weldable than actual bolt-on blades.
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Old 05-17-2010, 02:06 PM
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Comparing the replacement to the lower edge of the moldboard shown, it is apparent why the work might be needed. It seems the cutting edge was run too long and started to wear on the frog behind it too.
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Old 05-17-2010, 09:25 PM
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Many thanks to Calweld for his answer to my frog question.
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  #9  
Old 05-18-2010, 07:19 AM
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I would bolt the blade to the frog and weld in place. That's the important part. If the blade doesn't match the holes when you get done you're screwed. Just follow the correct stitch weld pattern and things will be fine in the frozen north..
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  #10  
Old 05-19-2010, 06:18 AM
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That frog really doesn't look bad enough to need replacement.

Besides, cutting edges last longer with a worn out frog
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