Method and device for assembling earth drill

摘要: PURPOSE:To assemble a front frame having large weight by suspending the using whip rope, and to prevent deterioration of efficiency appurtenant work except excavation. CONSTITUTION:A rope 20 for preparatory plan is hung down while one end coupled with upper section boom 5. The stretched wound on sheave 22 hook 21 plan, connected 14 at 13. caught 6, etc., 13 wound, thus erecting 6. removed from operation can be conducted unifilar suspension time excavation work. When not used, clamped clamp mounted an revolving superstructure 3, or drawn near winch stored in storage device.