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Fargo, ND | I had a customer who had trouble with "porpoising", as he called it, with WM-Drain on a direct mount Reynold's scraper. It improved considerably when he set the deadband to 0 and reduced the lower speed in the calibration page to 60%. I think that number was closer to 100 after calibrating.
With this type of setting the scraper lowers slowly and pulls up quickly when it gets below grade. So try reducing only the lower speed and keep the raise speed higher.
Are your tires fully inflated on the scraper? | |
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Fmx1000 wm drain scraper "washboarding"
