The Onspot Automatic Tire Chains system provides a level of traction on par with a single set of conventional snow chains. The system is permanently mounted and is ready to use at the flip of the switch, without having to stop the vehicle.
DDA has decades of experience installing and servicing OnSpot systems including on trucks, fire engines and ambulances.
Working on your own OnSpot System? Contact us for all your parts needs- switches, bearings, brackets, chainwheel assemblies and more. If we don’t have it in stock, we’ll get it ordered and have it to you ASAP.
ONSPOTs should be engaged and disengaged with the vehicle moving. The system can be turned on with the vehicle going as fast as 25 mph.
ONSPOT is designed to effectively work on ice, packed snow, and up to 6 inches of snow.
ONSPOTs require very little maintenance. The arm bearings should be greased at the same time as normal vehicle maintenance, and the chainwheels should be removed in the summer. Please refer to ONSPOT maintenance card #6160004 and ONSPOT’s tune-up sheet #6160063.
ONSPOTs can be installed on vehicles from ½ ton pickup trucks to Class 8 tractor-trailers. Please keep in mind that not all vehicles can be fit with ONSPOTs.
