Tips for maintenance of pneumatic rock drills
Tips for maintenance of pneumatic rock drills Cleaning before use: Experienced rock workers know that new machines must be cleaned before use! Because rock drills use a lot of anti-rust oil before leaving the factory, the anti-rust oil only prevents rust and does not lubricate, so it must be cleaned before use, otherwise the anti-rust oil will wear parts after burning. Regularly dismantle and wash the main unit: Especially the downhole duct has many impurities. Regular cleaning will reduce the wear and tear of the machine. If you are diligent, it is best to dismantle and wash once a week.
Frequent replacement of the drill sleeve: once the inner hexagon of the drill sleeve wears over 24mm (the outer diameter of the nut of the long bolt is 24mm), not only the drill rod is easily broken, but also the rotating sleeve, guide sleeve, piston, copper nut, and spiral rod are enlarged. , The valve block, the wear and tear of the ratchet. Wind pressure requirements: the wind pressure should be between 0.45Mpa-O.55Mpa! The efficiency of the machine below 0.4Mpa will be significantly reduced, and the machine parts above 0.55Mpa will wear faster! Water pressure requirements: general rock drills do not allow water pressure to be higher than wind pressure, because water pressure higher than wind pressure will cause water to pour into the body, destroy the lubrication system, accelerate wear, reduce the life of parts, and reduce the torque of the machine. The rock drilling speed drops or even stops! The water pressure is generally 0.2Mpa-0.3Mpa.
If the water pressure is too low, the washing effect will be poor. Do a good job of inspection: the lubricating oil is mixed in the compressed air and discharged from the exhaust hole; the shank must be covered with an oil film. Removal of impurities: Before connecting the air pipe of the rock drill, blow out the water vapor and impurities in the pipeline, otherwise the impurities will damage the rock drill. Good oil injection: do not use inferior engine oil and waste oil, but use oil according to the instructions. The oil consumption of the rock drill and the air leg is 3-4 ml per minute.
