I. Purpose & Scope

To safely and effectively provide instruction on the inspection and proper use of wheel chocks.

II. Definitions

Standard PPE – High Viz Garment, Hard Hat, Z-87.1 Safety Glasses, Gloves, Pants, Work Boots

III. Process

NOTE: Work instruction does not supplement the manual. For specific instructions for the exact model please refer to the owner’s manual.

A. Potential Hazards

• Moving Objects Hazard

B. PPE

• Standard PPE

C. Inspection

1.  Check for cracks, breaks or falling apart. Replace immediately if damaged.

D. Use

1. When possible park vehicle on a level surface and set the parking brake.
2. Always use wheel chocks in pairs, and position the chocks snuggly against the center of tire against the tread.
3. Wheel chocks must be positioned downhill and below the vehicle’s center of gravity.
   • On a downhill grade, position the chocks in front of the front wheels.
   • On an uphill grade, position the chocks behind the rear wheels.
   • On a level grade, position the chocks on the front and back of a single wheel.
   • Vehicles towing a trailer are require a minimum of two chocks for the truck and two chocks for the trailer, position each set at the front and back of a single wheel.
     
4. Make sure to use chocks specifically designed for the type of vehicle you are driving, never use a make shift chock, including but not limited to, lumber, bricks or rocks.
5. Maintenance and construction vehicles, and trucks under 1 ton, must be equipped with one approved wheel chock.
6. Trucks over 1 ton, single-axle trailers, and towed vehicles require a minimum of two wheel chocks.
7. Chocks must be used on any unattached, parked trailer, regardless of the slope of the surface.
8. Chocks must be used on any vehicle equipped with a boom that is elevated, regardless of sloping surface. On level surfaces, place chocks in front of and behind one wheel.
   
   
   

E. Maintenance

No maintenance required for this tool.