How to use wheel chocks

How to use wheel chocks

How to use wheel chocks

Environmental and vehicle considerations must be taken into account when using wheel chocks. Besides placing the vehicle in Park and putting on the emergency brake, variables that will affect the chock's performance should be reviewed, even before they are put in the back of the truck or trailer. A roll away vehicle can cause human injury, even death, as well as property damage. Here are the primary concerns to be addressed:

Tire size These chocks come in all shapes and sizes. Whether using a smaller rubber wheel chock for a truck in a utility fleet or a large Monster urethane chock for mining or construction, a correct size exists for virtually every tire size. Check with the manufacturer before ordering to determine the proper size for the tire on the truck.

Tire type Tires come in different types and grades, including radial, pneumatic, solid rubber and bias-ply. A metal wheel chock may not be as effective as a urethane wheel chock on a pneumatic tire. Likewise, a rubber wheel chock is not the best move for a solid rubber tire.

Gross vehicle weight The weight of the truck or trailer, especially when filled with work materials or shipped items, will affect how well a chock holds. Consider the full weight of the vehicle when deciding on a wheel chock set.

Fluctuating tire pressures that occur naturally due to changes in the temperature and weather conditions Tires should be checked periodically, especially during a change in season or a sudden change in temperature or air pressure. The general rule is that with every change in air temperature of 10 degrees Fahrenheit, a tire's PSI will go up about 1 psi when it's cold and down 1 psi when it's hot outside. Throughout the US where seasons are markedly different from one another, the average temperature difference is about 50 degrees Fahrenheit, making the tire fluctuate 5 psi per year! Tires should be checked on a regular basis to ensure the safety of these chocks.

The type and condition of the road surface where the wheel chock is placed There are all types of road surfaces asphalt, and concrete roads, with dirt, grass and gravel in off-road conditions, with the surface firm or soft, and wet or dry. Ice can also make a difference in the effectiveness of chocks, and rubber chocks often have accessories to add to the bottom of the chock to dig in to ice and softer surfaces.

The bottom line is that wheel chock should be tested and used only when the environmental and vehicle concerns are taken into account. Take into consideration all of the factors in using wheel chocks properly and you will have success in protecting your vehicle from rolling away every time.

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