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TIL how much a small change in cutterhead speed can mess with your whole day

I was running a 16-inch dredge on the Ohio River last week, just doing my normal thing. My boss pulled the maintenance logs and showed me we burned through 30% more fuel on a shift where I ran the cutter at 22 rpm instead of our usual 18. I found the stat in the engine room logbook, written in pencil next to the fuel gauge readings. Has anyone else had a simple setting throw their numbers off that bad?
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3 Comments
tyler_baker
Man that's a wild jump in fuel use. Makes you wonder what other small tweaks are costing a fortune. I'd be checking every dial twice after that.
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miller.paul
Disagree on the small tweaks idea. Most big jumps come from one clear change, not a bunch of hidden ones. You fix the main issue and the numbers usually settle back down.
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sullivan.john
Exactly, it's like tyler_baker said, you find one leak and fix it. But the real problem is thinking a bunch of small tweaks add up to a big win. They don't. You end up chasing noise in the data. Find the one broken thing causing 80% of the waste, hammer it flat, and then you can see straight. Everything else is just moving deck chairs.
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