When there is a problem with the instrument, some minor faults can be immediately eliminated, such as the sound column falling (installation position and method of the violin sound column), the violin stem falling (installation position and method of the violin stem and strings), etc. However, major problems can be more troublesome and can only be replaced with new ones. Parents of children learning violin should not only help educate their children to take care of the instrument themselves, but also understand some knowledge about violin. They should be able to promptly troubleshoot and solve problems when the instrument malfunctions, so as not to be annoyed by the inability to use the instrument and affect their learning.

Repair of Bow Fracture

Nowadays, children who learn violin start relatively early, and it is common for them to be 3-5 years old. At this age, they are also active and have poor self-control. As soon as he finished playing the piano, the bow unconsciously swayed and played in his hand, and accidentally fell to the ground. The better wood fell off several times before breaking, and almost split in half once. The most common fractures are at the bow tip and middle upper bow area, as these two areas have small bow rods and high elastic stress. If it is a slope fracture, it can be directly glued with wooden adhesive and then fixed with a thin thread. It can be used after two or three days; If it is a direct fracture, the above method alone is not enough. You need to use two thin wooden pieces to clamp the bow rod and fix it, and then wrap a circle of wire. Some people use local materials and connect a sleeve with a metal material cart, which solves the problem but results in heavy bow tips and light bow roots, making it difficult for children to control when using it.

Replacement of the tension plate's beef tendon line

Due to the production quality of musical instrument accessories or corrosion caused by sweat stains and dirt during instrument use, it is common for small children's violins such as 1/10, 1/8, and 1/4 models of instruments to have broken bowstring plates. When this situation occurs, you can cut a section of the cow tendon from the waste badminton racket and replace it with a new one. Use a perforated knot to tie the head inward and the buckle outward. The length should be slightly inward from the edge of the piano panel after tightening the cow tendon, and should not be left too long. When the string is adjusted to the height, it will still extend. In addition, it is also possible to cut a section of the four strings (G) of the violin as a substitute. Although using it has a certain impact on the sound quality of the violin, it is worth giving it a try when there is no other way. Although this thread may not be eye-catching, it is crucial to the overall situation. Nylon thread and silk cotton thread cannot be used because they have unstable load-bearing capacity and cannot maintain a fixed pitch of the string.

Maintenance of Bow Rod Screw

The adjustment of the tail screw of the bow rod plays a role in maintaining the elasticity of the bow hair and the bow rod. If it is too tight or too loose, it is inconvenient to play. Therefore, from the first day of use, the screw of this bow must be twisted at least twice or more. With the extension of the service life, the wear and rust of the screw thread will lead to the loss of control of the nut groove, ultimately making the bow unusable. Obviously, it is important to maintain this component well. Therefore, when purchasing an instrument, in addition to checking the bow, it is also necessary to check whether the screw of the bow rod can adjust the bow hair freely, and whether there are any nut grooves or fastening phenomena. After taking it home, you should unscrew the screw and apply a little lubricating oil, and use it again after a period of time to reduce wear and prevent rust, which may prolong the service life of the bow.