Posted by Dr. Walt on May 14, 2014 at 05:30:37 from (12.2.223.79):
In Reply to: box scraper question posted by jennifer408 on May 13, 2014 at 21:35:10:
Jennifer:
Over the years I've changed out many cutter blades & slobber bits on Dozers, Graders, & Scrapers. As for yours, I would weld a 2" wide piece of Bar Stock along the entire length of the Moldboard. Next, with a rotary file, rasp out any of the holes that have been partially closed by the welding or addition of the bar stock. Then put on the new cutter blade. Get a cutting blade with 2 cutting edges (wider than a single edge blade) so that when you wear down the cutting edge you just turn the blade end-for-end and have a new cutting edge. If you can, get the good Swedish Steel blades, they'll last a lot longer than anything else. Also, when you put the nuts on the plow bolts, do NOT use the split-ring type of lock- washer, they don't hold up to the abuse. Use the THICK Belville washers (they look like warped flat washers). Split-ring lock-washers exert their pressure against only 1/2 of the nut, while Belville washers exert the pressure across the ENTIRE FACE of the nut.
Doc
PS: Check out your local town or county Road Departments for used Motor-grader cutter blades. A lot of times they'll change out a double edged blade that still has a lot of life left on one of the cutting edges. You can usually get them cheap & sometimes even for FREE. :>)
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