Now is the time to prepare for winter operations, including calibrating your snowplows. A new guide from the Local Road Research Board can help you do it.
The Local Government Snowplow Salt and Sander Controller Calibration Guide (2009RIC08) provides easy-to-use, illustrated steps for calibrating snowplow sander controllers. “Quick Calibration Sheets” (one-pagers) are included with less detailed instructions to assist experienced calibrators. The guide also includes calibration forms and a general discussion about calibration.
The guide is an experience-based guide that captures tips and techniques learned by experienced calibrators. It helps agencies calibrate their sander controllers so the correct amount of salt, sand, or other solid material is applied to the road—saving money and improving safety.
The guide covers both automatic and manual controllers, and suggests approaches for both open-loop and closed-loop automatic controllers. It is available for download from the Minnesota LRRB Web site.
The LRRB calibration guide will be used in a new series of workshops this year from the Circuit Training and Assistance Program (CTAP). The Snowplow Salt and Sander Calibration Hands-on Workshop will be offered October 12 at the Washington County Highway Department, October 21 at the Grand Rapids Public Works Department, and November 9 at the Lac Qui Parle County Highway Department, in morning and afternoon sessions.
For more information, contact CTAP instruc
tor Kathy Schaefer at 651-366-3575, Kathleen.Schaefer@dot.state.mn.us.
Take it slow
Record constants as you calibrate
Simulate operating conditions during calibration
Automatic controllers self-calibrate
Minnesota LTAP | University of Minnesota | Minneapolis, MN 55455 | Location & Contact Information