Come with drilling machine manufacturers to learn how to maintain the drilling machine with it, hope I can give you some help.
1. drilling machines to gas supply line pressure should be guaranteed in the context of 0.5-0.6Mpa, if pressure is too high are easily damaged parts, if the air pressure is too low, the drilling efficiency will decrease, leading to normal use.
2. drilling machine before the gas supply pipe and drill through, first thing to blow fresh air duct in the dirt, so the dirt blown into the body which failure and damage parts of the valve.
3. drilling machines machines first to verify suitability of oil mist spray, adjust, work process, every 1 hour to fill the Lubricator with oil, not without lubrication.
Just a good maintenance can only be long-term use, we can never careless, if there are problems, drilling machine manufacturers will continue to answer your questions.