Water Well Drilling Rigs DW20
4.Improve water well drill rig, drill pipe halter must be check for any leakage and loosening of screws situation, and must be linked to the high pressure hose, safety rope. Lift the drill pipe, the operator must leave the lower part of the drill pipe on the main and auxiliary hoist rope must be wound neatly.

5.Connect drill pipe to insert the wire machine, not strong and loose or loose too much to prevent damage the threaded to prevent high pressure hose wrapped around the drill pipe.

6.Water well drill rig in the drilling process, the gate must concentrate our thinking attention to the formation changes and the rotation of the drill pipe leading, according to the sound of the turntable, the footage of the speed of rotation of the drill pipe to judge the formation changes that have been change layer to stop the turntable, slightly lift the drill pipe. Such as the mud layer, lift the drill pipe, drill pipe immediately counterclockwise rotation. Such as sand, lift the drill pipe, drill pipe does not rotate, under stratum transform, down into the sample to sample.