Adjustment method of dial
When SIS adjustment of back dialer is carried out, the chain is in the state of hanging on the second chain wheel of the largest chain link. Rotate the crank to make the transmission handle easy to operate. At this time, if the chain contacts the third sprocket and makes noise, it is the best setting state. However, when the cable is over-tightened, the chain will change to the third section. In this case, turn the outside adjusting screw clockwise to make the chain return to the second section. In addition, when the tension of the cable is insufficient, the chain does not touch the third sprocket and does not emit sound. In this case, the outer adjusting screw is rotated counterclockwise to make the chain contact with the third sprocket to produce sound. After the above adjustment, the transmission handle is restored. Even when the sound is still emitted in this state, the outer adjusting screw is rotated clockwise. Screw, adjust until no noise, and finally adjust the speed of each section to ensure that no noise. Verify the speed change of the front sections_
1. The chain falls off. When the chain falls off at the crank side, rotate the rotating screw on the high side clockwise for about 1/4 weeks; when the chain falls off at the middle axis side, rotate the rotating screw on the low side clockwise for about 1/2 weeks. When the middle chain is jumped from the maximum chain, the outer adjusting screw of the transmission is rotated counterclockwise for 1 to 2 weeks. A kind of
2. Unable to change speed smoothly. When the chain is difficult to change speed from the middle chain to the maximum chain, the adjusting screw on the high side will rotate counterclockwise for about 1/8 weeks; when the chain is difficult to change speed from the middle chain to the minimum chain, the adjusting screw on the low side will rotate counterclockwise for about 1/4 weeks; when the chain changes speed from the middle chain to the maximum chain, the handle will operate heavily, and the adjusting screw on the high side will rotate counterclockwise for about 1/4 weeks. Turn counterclockwise for about a quarter of a week. A kind of
3. Touch the guide plate. When the chain is hung in the maximum chain, the adjusting screw of the high side rotates clockwise for about 1/8 weeks when it contacts the inner guide plate of the chain; when the chain contacts the outer guide plate of the chain, the adjusting screw of the high side rotates counterclockwise for about 1/8 weeks. Then hang the chain in the state of maximum sprocket in the middle chain ring. When the chain and the guide plate in the chain interfere with each other, tighten the outside adjusting screw of the transmission clockwise for 1 to 2 weeks. When fine-tuning is not smooth, please check the installation position of the front dialer, and check the deformation of the back dialer.
