A new tool at hand, first question is its inspection before use, step drill use no exception. Handy to use stairs drill, the following work must be done.
 
1. Check the running direction of the return pump, oil level, idling current, slow load current, check flotation drive, write mud transmission, reducer oil level.
 
2. Check the centering wheel, wheel, tug oil cup oil. Check the screw stator and rotor is killed, such as the need to add oil tight tube clamp pull rotation, easy to start.
 
3. Check stepped drill water distributor valve is turned on, check the pressure gauge valve is open.
 
4. Check the electrical power supply, instrument is turned on, check the steering and air compressor lubrication.
 
5. Check the air compressor control relay is normal.

After the inspection work to do, step drills can begin to work, and their work will be a lot of success. Do not believe, you try it! Specializing in the production step drill, Tools Co., Ltd. Changzhou good to offer your portrait, please look at Yo ~