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c/dredge-operatorsray136ray13622d agoTop Commenter

That old-timer's tip about keeping the cutterhead cool actually saved me today

I was running a tough clay and gravel mix near the St. Johns River this afternoon, and my cutterhead was starting to heat up bad. A guy I met at a job site last Fall told me to slow the swing speed by about 30 percent when the material gets sticky. I didn't really believe him at first, but I was desperate so I tried it. Sure enough, the temperature dropped enough that I didn't have to shut down and wait for it to cool. I've been running 8 years and never thought about adjusting swing speed for heat, I always just flooded the bearings more. Has anyone else used that trick, or do you have a weird fix for when the cutter gets too hot in heavy stuff?
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3 Comments
the_lee
the_lee21d ago
Slowing the swing speed is the real trick. I run a lot of sandy clay near the river too and that's the only thing that keeps the head from turning into a brick of baked mud. You gotta watch the amps too. If they start climbing, you're about to cook the seals. Keep the water flowing steady but don't drown it.
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reesel50
reesel5022d ago
Slowing the swing speed actually helps keep the clay from baking onto the bits, not just cooling the head.
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nora_park
nora_park21d ago
Lol so it's a technique issue AND a heat issue.
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