Blocking and Cribbing for Heavy Equipment

Blocking and cribbing is a phrase that describes a variety of procedures used to stabilize heavy equipment, or large components of heavy equipment, during maintenance. Blocking refers to any of a number of methods for securing a machine, or part of a machine, while it is being worked on. Cribbing refers to the technique of stacking a group of uniform blocks to create a temporary, but sturdy, elevated structure capable of supporting a heavy load. This course describes equipment and guidelines for successful blocking and cribbing operations.

• Describe the purpose of blocking
• Describe cribbing
• Identify some of the blocking techniques used with heavy equipment
• Describe the materials used for cribbing
• Describe cribbing block care
• Describe some of the techniques used to build a successful crib