“Why is my snow plow cutting edge blade broken,” you ask? Cutting edge breakage typically occurs when blades repeatedly encounter road obstructions like bridge abutments, manhole covers, or drains. When drivers move too quickly over these road obstructions, the possibility of a break will increase. It can also occur when hardware is not installed correctly from the start.
Rather than focusing on driver training, in this post we’ll explore how to keep your cutting edge from breaking due to hardware issues.
Snow Plow bolts can break due to loose blades. It’s likely that the incorrect nut or bolt was used and that the necessary torque was not applied at the time it was installed. Torque refers to the tendency of a force to rotate an object about a pivot, fulcrum, or axis. Think of torque in terms of a twist to an object. For bolts to work properly, there needs to be an adequate amount of tightness to them. Check out our guide to snow plow blade torque for more information.
Using high quality bolts is necessary even though it might not be the root cause of the breakage. You should always use grade 8 bolts for your snow plow cutting edge and – while you’re at it – a lock nut.
Here are a few tips to help reduce snow plow cutting edge breakage from a hardware standpoint:
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