1. Before threading a brand-new racket, it is necessary to check whether there are scars, air holes and other defects on the surface of the racket. If you find or suspect that the racket has any hidden quality problems, please immediately return it to the general agent for identification, and do not handle it yourself.

2. When cutting used lines, the cutting sequence must start from the center of the racket face: vertical 1, vertical 1, horizontal1,horizontal 12, vertical 2, horizontal 10, and horizontal. ...

3. Pull the used racket again and check whether the rubber particles in the thread hole are defective. When defective colloidal particles appear, they must be replaced immediately, otherwise the wires will be broken soon during or after pulling.

Second, stay on the badminton racket.

1. The racket frame must be clamped on the "6-point" racket frame fixing chuck according to the requirements of the wiring machine manual, and the chuck is required to have a "basic plane self-calibration design".

2. The improved "three-finger" decompression strut is recommended for the racket head strut.

3. When the racket is firmly clamped, the racket frame is not allowed to be "deformed in advance" due to excessive force, otherwise the chuck fixture must be readjusted.

Third, the line measurement

1, the clear length of the vertical line is 5.5 meters, which is about 8.5 times of the total length of the racket.

2. The net length of the horizontal line should be 4.5 meters, which is about 6.5 times of the total length of the racket.

Four. Badminton threading sequence (Yonex has strict regulations on threading sequence and drawing direction)

1, the vertical line should start from the midpoint of the racket head (through the 1 hole above) and be pulled to both sides in turn. After passing through the lower 9 holes, you must jump to the lower 12 hole and then pass through it (during which * * * jumps two line holes), then pass through the upper 1 1 hole and then pass through the upper 65448. Special note: the vertical line 10 is the last vertical line to be pulled, not the vertical line 1 1.

2. After the horizontal line is knotted at the upper 6 holes, it should pass through the upper 7 holes, then be pulled to the bottom of the frame in turn until it passes through the lower 9 holes, and then be knotted at the lower 7 holes, thus ending the pulling work of the horizontal line.

3. The tension range of the racket cone sleeve is the tension requirement for the vertical line. When pulling a horizontal line, please increase the tension by 2 pounds or 10% on the basis of the vertical line tension.

4. The horizontal line and vertical line must be pulled separately: when pulling the vertical line, start from the middle point of the racket head and pull the line evenly to both sides (that is, two clips must be used at the same time) to ensure that the left and right sides of the racket are deformed uniformly and elastically symmetrically, and pay attention to the jumper rules and pulling directions of the last two vertical lines; The horizontal lines should start from the top of the picture and be pulled to the bottom one by one. The horizontal tension should be about 2 pounds higher than the vertical tension.

High-pound cable guide tube

First, the purpose of high tension

The main function of improving the linear tension of the racket is to enhance the accuracy of the "mirror reflection principle" of the racket face, thus improving the direction control performance of the racket and improving the acoustic effect when hitting the ball.

But at the same time, it also greatly reduces the rebound ability of the racket line, affects the initial speed of reflection and the final flight distance of the return stroke, thus weakening the attack power of the return stroke and consuming more physical strength of the players.

For the same racket, the essence of improving the tension of the cable is to exchange its strength performance for its control performance, and the overall performance of the racket itself will not be improved correspondingly because of the increase of the tension of the cable.

Yonex's Musclc dynamic arc groove design greatly improves the stress structure of the racket frame. Fans who like high cable tension suggest using a badminton net with muscular dynamic structure to provide www.yumaoclub.com.

Second, the risk warning

1. Even if it is brand-new, if the cable weight is higher than the guide range of the label attached to the cone cover, it means giving up the quality guarantee provided by the sales agent voluntarily.

2. The time for the racket string to maintain its peak performance under ultra-high tension will be greatly shortened, generally within 30 days.

3. When the ultra-high tension racket is accidentally broken in use, the racket frame will be seriously deformed due to sudden tension imbalance, resulting in permanent damage to the racket.

4. For ultra-high tension rackets, the redundancy of the rigid structure of the racket frame is greatly reduced, and even a small external force (such as the direct impact of badminton on the racket frame during spiking) may seriously deform the weak parts, causing permanent damage to the racket, so special attention must be paid when using and storing it.

Third, the machine before inspection

1, high-tension racket, racket frame hole rubber consumption is very serious, must be carefully checked before pulling, line hole rubber damage should be replaced immediately.

2. Ultra-high tension racket, after the racket frame is hit by a hard object, it is likely to have an imperceptible structural hidden danger. When handling these rackets (especially when cutting thread), be sure to stay away from people's faces, so as to avoid accidental injury to people (especially eyes) caused by the vibration of broken rackets.

3. If you find or suspect that the racket has any structural hidden trouble, don't try to increase the tension again, otherwise it may lead to irreparable adverse consequences.

Fourth, get on the computer.

1. The racket frame must be clamped on the "6-point" racket frame fixing chuck according to the requirements of the wiring machine manual, and the chuck is required to have a "basic plane self-calibration design".

2. The improved "three-finger" decompression strut is recommended for the racket head strut, so as to eliminate the depression on the inside of the racket head caused by excessive pressure caused by high-voltage lines.

3. When the racket is firmly clamped, the racket frame is not allowed to be "deformed in advance" due to excessive force, otherwise the chuck fixture must be readjusted.

Note: Use "6-pinch" chuck and "3-finger decompression prop".

Five, threading sequence

1, the threading sequence of high-voltage cables is consistent with the normal tension wiring requirements.

2. Special treatment when pulling horizontal lines: Because the length of the five horizontal lines at the head and the four horizontal lines at the bottom of the racquet frame are relatively short, the racquet line will fail prematurely under high tension. In order to improve the contribution of these nine horizontal lines to the sweet zone rebound, the tension of the five horizontal lines in the head need not be higher than 25 pounds, and the tension of the four horizontal lines in the bottom need not be higher than 28 pounds. After this special weight reduction treatment, it is helpful to expand the area of the sweet zone of hitting the ball and improve the response performance and durability of the racket line.