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Old 01-15-2017, 08:14 PM
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Default PHD Auger repair

My father bought a hydraulic auger at auction and I have the task to fit it to his tractor loader. I've got the frame built and after looking over the augers the 12" is need of a bit of repair. The PO cut some teeth off and jammed them into pockets to make it look good for the sale. Well it was a hoot getting the wrong tooth out. I ordered new teeth and retaining rubber to see how badly the pockets were worn. From the literature I found online it looks like the side of the pockets is/was open originally.


It looks like the cutting edge is made of cast??? I had thoughts of trying to build up the missing material and I have had thoughts of just putting a new tooth in and welding it. I'm working 65-75 hours a week so time is of the essence. If it makes 50 holes a year it would be a lot.

Any suggestions? Rod type?
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Old 01-15-2017, 09:00 PM
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OOps, I thought PHD meant Piled High and Deep.

50 holes a year I would just weld some teeth in and cut them off next time to replace. I have no idea on rod type.

Scott
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Old 01-15-2017, 09:09 PM
theweldor theweldor is offline
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I would bet it is cast steel. Easily built up with 7018 or you could probably mig it.
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Old 01-15-2017, 09:12 PM
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The cutting teeth are not cast. They are as hard as hell. About like hard surface weld rod.
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Old 01-15-2017, 10:07 PM
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That's a ruff one. It would be nice if you could shape some copper backup. I would put enough heat on it to take the moisture out of in and use 7018 to build it up. It will take some time!! A mig would be nice if you have one. Where pieces are gone you could weld pieces of FB on edge with a 100 percent weld would help to have something to weld to.
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Old 01-15-2017, 10:58 PM
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I have a mig buts it's an antique powcon unit that I don't feel like trouble shooting right now and I don't have an outlet in the shop yet. I have the sa 200 sitting two feet outside the back door and there's just something therapeutic about welding with it.

What's FB?
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Old 01-15-2017, 11:06 PM
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Flat bar
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Old 01-15-2017, 11:54 PM
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Quote:
Originally Posted by SmokinDodge View Post

What's FB?
French bread.
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Old 01-16-2017, 07:34 AM
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If it were me... (And it isn't), I'd:
Test the pockets for hardness with a centre punch and spark test.
If the testing above does not indicate high carbon steel, then I'd try to find a brass, copper, or carbon block the same size as the insert teeth for a backer bar.

Use a thorough preheat to 300 - 400 F (using temp sticks or infra red indicator)
Insert the backer bar in the worn pocket
Weld up a base covering with 7018 maintaining an inter pass temp of 350-450F
If available, I would consider using hard facing over the 7018 base on the outer edge of the pockets.

Without a backer bar, the pockets would be very difficult to open back up.

The pockets must be attached to the auger somehow usually they are welded, but there are some that bolt on. The bolt on ones may be as hard as the insert teeth.

The insert teeth are cast high carbon steel and may even be chilled to get full hardness. Note the embossed warning re installation with a soft hammer to prevent injury from flying chips.
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Old 01-16-2017, 10:03 AM
JBFab JBFab is offline
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Holy heifernuts! What kinda ground are you cutting through? We don't have teeth on the augers up here, but we're not cutting rock either.

Cam's advice is pretty solid.
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