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How To Check Steering Wheel Toe-in

How to check steering wheel toe-in

There are three commonly used inspection methods for steering wheels toe-in.

1. First jack up the front of the locomotive, turn the steering wheel when the steering wheel is suspended, and measure the distance between the front end and the rear end of the two steering wheels. The difference between the two is the toe-in value. This measurement method has a large error, because there are gaps between the steering knuckle and the king pin, and between the hub bearing and the steering knuckle, so the suspended state of the steering wheel is not the same as the state when it is loaded on the ground.

2. Measure with a pointer toe-in ruler. Because the toe-in ruler is long, the two measuring feet are elastic, and the thickness of the steering tire side of the two wheels is different, which also affects the accuracy of the measurement.

3. Use the flat cart method to measure. Park the locomotive on a flat ground, mark 1/2 of the height behind the tires of the two steering wheels, and measure the distance between the two marks. Then push the locomotive forward to make the two Turn the steering wheels 180 degrees, that is, turn the mark to 1/2 of the height in front of the tires of the two steering wheels, and then measure the distance between the two marks. The difference between the distances obtained by the two measurements is the toe-in value of the steering wheel. Then push the locomotive forward, turn the steering wheel 90 degrees, and then measure the toe-in value of the steering wheel according to the above method. Take the average of the two measurement results as the actual toe-in of the steering wheel of the car. You can also take a few more points on the tire for measurement to eliminate the influence of various factors and obtain a more accurate toe-in value.

Adjustment method of steering wheel toe-in

The adjustment of the steering wheels toe-in is realized by changing the length of the steering tie rod. When the tie rod is extended, the toe-in value increases; when the tie-rod is shortened, the toe-in value decreases. The following are general adjustment steps.

1. Loosen the locking bolts of the joints at both ends of the steering tie rod.
2. In order to see the number of turns of the tie rod, it is best to make a mark on the tie rod and the joint with chalk.
3. Twist the tie rod with a pipe wrench to lengthen or shorten it.
4. After the adjustment is appropriate, tighten the locking bolts of the joints at both ends of the tie rod.

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