Hydraulic Derricks and Digging Equipment explains three popular types of hydraulic digging equipment: digger derricks, backhoes, and trenchers. The major working parts and controls and safe operating practices for each are described. Each piece of equipment is shown safely performing a job typical of those for which it is designed. Covers how to locate and identify the major working parts and controls of digger derricks, backhoes, and trenchers. Summarizes the uses for which each machine has been designed and describe each machine's safe operation in the field.
8-1/2" x 11" 70 pages By Alexander Publications