Hydraulic Derricks

Digger Derricks Identify the major working parts of a typical digger derrick. Identify the controls of a digger derrick. List factors to be considered when operating a digger derrick. Digger Derricks Operations List factors to be considered 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. Backhoes Identify the major working parts of a backhoe. Identify the controls of a backhoe. List factors to be considered when operating a back hoe. Backhoe Operation Describe the proper procedure for transporting a backhoe. List factors to be considered when positioning a backhoe at a work area. Describe general techniques for operating a backhoe. Trenchers Identify the major working parts of a trencher. Identify the controls of a trencher. Describe typical jobs for which a trencher would be used. Trencher Operation Describe the proper procedure for transporting a trencher. Describe the proper procedure for operating a trencher.