Hydraulic Derricks

COURSE DESCRIPTION

Many tools use hydraulic power to make a job easier. Some of the common jobs on electrical systems involve lifting or digging. This program discusses the major working parts, controls, and safe operating procedures for hydraulic derricks. The program also demonstrates how to use a digger derrick to dig a hole and install a utility pole.

COURSE GOALS

• Locate and identify the major working parts and controls of digger derricks and conduct a thorough pre-trip inspection of the truck unit.

• Discuss factors to consider in order to safely operate a digger derrick.

• Describe how a digger derrick is used to dig a hole and set a utility pole.

• Describe how a mini derrick is used to set a pole and lift equipment.

SUBJECTS AND OBJECTIVES

Digger Derricks

• Identify the major working parts of a typical digger derrick.

• Identify the major controls of a typical digger derrick.

• List factors to be considered when operating a digger derrick.

Digger Derrick Operation

• Conduct a thorough pre-trip inspection of the truck unit.

• List factors to consider when positioning a digger derrick at a job site.

• Describe how a digger derrick is used to dig a hole.

• Describe how a digger derrick is used to install a utility pole.

Mini Derricks

• Describe the advantages of a mini derrick in rear-lot pole setting jobs.

• Describe how control methods differ for a mini derrick.

• Describe how a mini derrick may be used to carry equipment to a job site.

• List the considerations for maneuvering, positioning, and operating a mini derrick

Appendix:  Pre-Trip Inspection Training