The French horn is also called the French horn. Currently, there are simple three-key French horns, as well as complex four-key, five-key, and even six-piston French horns; there are single-row, double-row, and three-row horns; some are used by adults. There are standard French horns, and there are also small French horns for primary school students; there are French horns whose bell mouth and the instrument are integrated, and there are also French horns where the bell mouth and the instrument are separate; there are French horns that use a cord to drive the keys to rotate, and there are also French horns that use key stem screws The French horn that drives the keys to rotate. Due to the fine workmanship of the French horn, especially the three-row French horn, it cannot be opened and cleaned and oiled at any time like the trumpet, so more attention should be paid to maintenance. First of all, after using the instrument, the water in the pipe must be removed. Because saliva is acidic, removal can reduce corrosion.

For commonly used French horns, the inside of the pipe should be rinsed with tap water every half a month to a month. You can pour water from the mouth of the mouthpiece or the mouth of the bell. While flushing, move the key so that the key piston is also flushed. The tuning tubes can all be unplugged and cleaned separately. Be careful not to bump the instrument and tubes. After rinsing, clean the water in the instrument and pour out all the water by turning it up and down along the pipe. Then wipe the tuning tube clean, apply some Vaseline lubricant on it, insert the single tube and rotate it a few times to allow the oil to fully contact, then insert the double tubes at the same time and move it a few times. Use a clean cloth to wipe off water stains, oil stains and fingerprints on the surface of the instrument.

Since the spring is made of steel wire, it is easy to rust when it comes into contact with water. Therefore, every time you rinse the instrument, you must dry the spring and apply some white oil or sewing machine oil. If there are iron screws used on the keys, some pure oil should also be applied to prevent rust. For the maintenance of keys, regular oiling is required. There are two kinds of oil that need to be applied at different positions: the first is to use pure oil, that is, white oil or sewing machine oil, and drop one to two drops on the upper and lower shafts of the key. Unscrew the back cover to proceed. The second is to use copper pipe piston oil. First, pull out the tuning pipe, and drip a few drops of oil into the piston through the pipe. When dripping oil, the mouth of the pipe should be facing upward. While dripping, move the key to let the oil penetrate into the entire piston. .

After dripping the oil, just plug in the tube