The calibration of front wheel The two front wheels make the vehicle to turn. Use the special method to assemble the wheel to make the steering easy, stable and accurate. Such special assemble is called as calibration, which has great influence on the operation of steering wheel. 1. Outward Incline When assemble front wheel, the distance between the tops of the two wheels is far than the distance between the bottoms of the two wheels. Such incline is called as outward incline. 2. Inward Incline Same with the abovementioned, the distance A between the front ends of front wheel is little slightly than the distance B between the rear ends. Such incline is called as inward incline.
When vehicle drives with outward incline, the power is intend to push front wheel, which outward increase the ground resistance to wheels and result in the driving is unstable and larger tire wear. When the wheel is assembled with slightly inward incline, such bad tendency will reduce to minimum. The difference of 4 6 mm between A and B is called inward incline value. 3. The incline of central vertical axle When the incline is inward slightly, the central vertical axle is not vertical absolutely and such angle is called the incline of central vertical axle, combined with the outward incline, such incline reduces the swing track of steering wheel.
Because when the central vertical axle as the central axle to makes the front wheel to turn, the front wheel is tend to increase, meanwhile, such action is accompanied the reaction of the wheel returns to previous position. When the gear turn a little and the vehicle forwards straightly, the release of the steering wheel will produce reaction to return the steering wheel to the previous position, such angle is always about 5° 8°. 20-62