A, axial correction:
Axial correction is to correct the left and right shaking when the rim rotates. Before calibration, fix the wheels on the calibration frame. Please note that the center of the shaft should coincide with the center of the correction frame.
Adjust the movable arm on the correction frame so that the end of the indicator screw is aligned with the outside of the rim, tighten the fixing screw on the movable arm, rotate the rim, check the swing degree and swing section of the rim, tighten the spokes at the back of the swing section with a wrench, and pull the swing section over; You can also relax the spokes inside the swing part to reduce the tension on this side.
Second, the radial correction:
Radial correction is to change the rim from ellipse to concentric circle, observe the distance between the outer edge of the rim and the supporting plate, and understand the radius difference of different rims. First, loosen three to five nuts on both sides of the shortest radius section with a wrench to reduce tension and increase radius.
Then, properly tighten three to five covers on both sides of the long radius part to increase the tension and reduce the radius. After adjustment, slightly approach the adjustment support plate to further correct the spoke tightness at the short radius and the long radius of each part until the radii are basically equal.
Extended data:
routine maintenance
1. After the car has been riding for a period of time, check and adjust all parts to prevent the parts from loosening and falling off, and regularly inject proper amount of engine oil into the sliding parts to keep lubrication.
2. Once the vehicle is wet by rain or damp, the electroplated parts should be wiped clean in time, and then coated with a layer of neutral oil (such as household sewing machine oil) to prevent rust.
3. Don't wipe the varnished parts, so as not to damage the paint film and make it lose its luster.
4. The inner and outer tires and brake rubber of bicycles are rubber products, so contact with oil products such as engine oil and kerosene should be avoided to prevent rubber from aging and deterioration. The new tires need pumping. Usually, the tires should be properly inflated, and the tires are easy to crack. Overinflation can easily damage tires and parts. The correct way is to pump less air in the front tire and more air in the rear tire. You should pump enough gas in cold weather, but don't pump too much in hot weather.
This bike has a heavy load. For ordinary bicycles, the load shall not exceed120kg; The load of heavy bicycle shall not exceed 170 kg. Because the front wheel design can only bear 40% of the weight of the whole vehicle, do not hang heavy objects on the front fork.
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