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Hit 5,000 cubic yards of sediment moved on my cutterhead last Tuesday
That 5,000 yard mark made me stop and actually check my cutter teeth for the first time in weeks - found three of them were almost bald on the leading edge. The shift from soft silt to that hard clay layer in the channel really chewed through them faster than I expected. Do you guys run a different tooth type when you see the clay coming up on the sonar?
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blake3225d ago
Hell yeah, @ryanh56 you hit the nail on the head with that gradual slope versus sudden drop-off question. I had almost the exact same thing happen last summer, where the sonar showed a slow transition from mud to a stiffer layer, and I figured I'd push my worn teeth another week. Big mistake. I ended up having to swap out all twelve teeth at once because three of them snapped off clean when I hit a hard clay lens. Now I keep a spare set of rock teeth in the cab and swap them out as soon as I see that profile change on the screen, no matter how fresh the regular teeth look.
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ryanh565d ago
And what did the gap between the last mark and the clay line look like on the sonar, was it a gradual slope or more of a sudden drop-off? I've been wondering if switching to a more aggressive rock tooth right when that transition shows up would save time versus trying to get another day out of the worn ones. Did you replace all three at once or just the bald ones?
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