Extension Drilling Tools is our main tool for water well drilling and testing. The following editor will briefly introduce the maintenance precautions of Extension Drilling Tools.

1. 
   Check whether the oil quantity of each oil tank is sufficient and whether the oil quality is normal, check whether the gear oil quantity of each reducer is sufficient and whether the oil quality is normal; check whether there is an oil leakage fault.
   2. Before work, add grease to the lifter of the engineering rig. When filling the lifter, be sure to open the grease nipple at the other end. This will help to squeeze out the previously injected butter, otherwise it may lift the lifter. The oil seal in the device is broken. Dirty water containing silt is easy to enter, which will wear bearings and reduce the sensitivity of the rig lifter.
      3. Check whether the lifter rotates flexibly and whether the internal grease is contaminated.
      4. Check whether the main and auxiliary steel wire ropes have broken wires and whether their connections are intact and safe.
      5. Check the Reaming Bit steel structure for cracks, rust, desoldering and other damage