--- title: Three tips for rescue drivers on when to use Onspot description: Read the following post to learn when the best time to use Onspot Automatic Snow Chains is during adverse conditions. image: https://intblog.onspot.com/hubfs/Blog_images/Product_Images/Onspot_PressingButton%204x3.jpg --- [![](https://www.onspot.com/imagevault/publishedmedia/ewjmu1x672ip2pj4oovu/Onspot_Logo.png)](https://www.onspot.com/en-GB/) - [Why Onspot](https://www.onspot.com/en-GB/why-onspot/) - Knowledge - [Overview](https://www.onspot.com/en-GB/knowledge/overview/) - [Ways to increase traction](https://www.onspot.com/en-GB/knowledge/ways-to-increase-traction/) - [For fleet managers](https://www.onspot.com/en-GB/knowledge/for-fleet-managers/) - [For drivers](https://www.onspot.com/en-GB/knowledge/for-drivers/) - [For mechanics](https://www.onspot.com/en-GB/knowledge/for-mechanics/) - [Rules & regulations](https://www.onspot.com/en-GB/knowledge/rules--regulations/) - [Knowledge centre](https://knowledge.onspot.com/knowledge-centre-for-winter-driving-and-traction) - The product - [Overview](https://www.onspot.com/en-GB/the-product/overview/) - [Testimonials](https://www.onspot.com/en-GB/the-product/testimonials/) - [FAQ](https://www.onspot.com/en-GB/the-product/faq/) - [Documents, manuals and brochures](https://www.onspot.com/en-GB/the-product/documents-manuals-brochures/) - [Tech specs](https://www.onspot.com/en-GB/the-product/tech-specs2/) - [Spare parts](https://www.onspot.com/en-GB/the-product/spare-parts/) - [Configurator](https://www.onspot.com/en-GB/configurator/) - About us - [Overview](https://www.onspot.com/en-GB/about-onspot/overview/) - [History](https://www.onspot.com/en-GB/about-onspot/history/) - [News & Press releases](https://intblog.onspot.com/news-press-releases) - Blog - [Blog articles](https://intblog.onspot.com/) - [All about automatic snow chains](https://knowledge.onspot.com/en-gb/all-about-automatic-snow-chains) - [Traction aid for heavy vehicles](https://knowledge.onspot.com/en-gb/traction-aid-for-heavy-vehicles) - Find us - [For Dealers & Service](https://www.onspot.com/en-GB/find-us/for-dealers--service/) - [Events](https://www.onspot.com/en-GB/find-us/events/) - [E-Training](https://www.onspot.com/en-GB/training/) - [English](https://onspot.com/?s=false) - [Contact us](https://www.onspot.com/en-GB/contact-us/) # Three tips for rescue drivers on when to use Onspot Written by [Eric Jones](https://intblog.onspot.com/author/eric-jones), March 9, 2018 When is the correct time to engage your Onspot Automatic Snow Chains? This is a common question that we hear from our friends in the fire and rescue industry. Actually, it’s a frequently asked question in many of the markets that we serve. The easiest answer to the question is to engage your Onspots before you need them! The device assists with both stopping and starting and being mindful of the current situation can keep you out of trouble before it starts. However, we all know that black ice and other hazards can occur with little to no warning. Let’s further explore this topic in three parts: - **Using Onspot while driving in poor conditions** - **Engaging Onspot when the vehicle is already stuck** - **Engaging Onspot during emergency braking and or sliding** We have a [standard set of recommendations](https://blog.onspot.com/blog/how-to-maximize-your-onspots) to maximize the benefits of using Onspot while driving in poor conditions. The main idea is to engage at a slow speed and to disengage before encountering dry pavement. We also recommend keeping your speed under 50 km/h. If you are already stuck, or become stuck after parking, Onspot can be a real advantage. We often hear stories of fire trucks or ambulances that become stuck while being parked at an accident scene. The run-off water or melting snow and ice can refreeze around the vehicle and create a situation where the tyres can’t get [traction](https://blog.onspot.com/blog/what-is-traction-friction-and-road-grip) on the roadway, driveway, parking lot or frozen ground. In this situation we recommend slowly spinning the tyres and then engaging Onspot. The idea is to get the chain underneath the tyre but also to stay safe! Using this method can be dangerous as the vehicle will break free once the chain bites into the surface creates a friction point for the tyre. Use extreme caution and ensure that no people or property are in the path of the vehicle. Emergency braking requires a similar procedure to work. If the wheels are locked up and skidding during the braking our chain will likely not find its way underneath the tyre when the system is engaged. Pumping the brakes to allow the chain wheel to spin will provide the centrifugal force to propel the chain underneath the tyre and provide traction for stopping. Now that you know how to use your Onspots in tough conditions check out our guide to keeping them in good condition for years to come!                                             [![Driver´s checklist](https://no-cache.hubspot.com/cta/default/1905643/fd837016-056c-4b32-b3cc-84fc3cb1e968.png)](https://cta-redirect.hubspot.com/cta/redirect/1905643/fd837016-056c-4b32-b3cc-84fc3cb1e968)   [Rescue Driving](https://intblog.onspot.com/topic/rescue-driving) [School bus driving](https://intblog.onspot.com/topic/school-bus-driving) [Slippery Roads](https://intblog.onspot.com/topic/slippery-roads) [Commercial Drivers](https://intblog.onspot.com/topic/commercial-drivers) ![Eric Jones](https://intblog.onspot.com/hubfs/Eric%20Jones.jpg) #### About [Eric Jones](https://intblog.onspot.com/author/eric-jones) Eric is the Global Sales Director for the Onspot brand. He has over 15 years of industry experience and received an MBA from Ball State University. Eric enjoys spending time with his wife and two children and being active outdoors. 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