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Checking freewheel (backlash) of the steering wheel
With an increase in the free steering wheel during difficult driving as it reacts with a delay to the action of the driver. In addition, increased course that can not be eliminated by adjusting the steering mechanism, a malfunction of the steering (loose steering, steering gear and the idler arm or wear their parts). Check wheel play spend on car set on a flat-slip coating. The backlash should not exceed 5 ?�. Backlash can determine in linear units (mm) using the formula L = (5 ?� / 360 ?�) pD, wherein L - the play of the steering wheel, mm; p = 3,14; D - outside diameter of the steering wheel mm. For the steering wheel, an outer diameter of 400 mm, the clearance should not be more than 18-20 mm. You will need: a ruler, chalk (or wire) for the application of labels. 1. Place the front wheels in a position corresponding to the straight-ahead position. |
| | 2. Set the range so that it rests on the end of the instrument panel, and the plane of the line for the outer surface of the steering wheel rim. Without changing the position of the line, turn the steering wheel in any direction before the start of the front wheels. In this position, put on the steering wheel rim label (tighten the wire). | 3. Without changing the position of the line, turn the steering wheel in the other direction before the start of the front wheels. In this position, put on the steering wheel rim a second label (tighten the wire). |
| 4. Measure the distance between the rim labels. It should be no more than the calculated value. If the distance (a free wheeling of a steering wheel) more continue to check the steering to determine the cause of increasing the freewheel. |
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