Image for illustration purpose only Use floor mat or any cushion material to keep 15. the part. Use hand to remove I/shaft from pinion by 16. shaking up & down movement. VI. WHEEL ALIGNMENT Wheel alignment is a procedure of aligning wheels according to the specifications. The purpose of these adjustments is to give maximum tyre life and vehicle-travel that is straight and true when driving along a straight and level road. A correct wheel alignment is necessary because it affects directional stability, tyre tread wear and vehicle’s safety. Warning signs of improper wheel alignment include steering wheel shimmy, a constant steering pulls to one side, tyre squeal noises when making turns, excessive vibration as speed accelerates, and changes in direction after a car has hit a bump on the road. If any of the above symptoms are noticed, wheel alignment becomes necessary. Wheel alignment should be done at the time of fitting new tyres and thereafter at regular intervals. Wheels which may be only a fraction out of alignment can scrub or drag along the road instead of rolling along it. Normally overall wheel alignment refers to the procedures used to check and adjust the steering system, including the camber, caster, and toe. Basically toe is a measurement of how much the front and/or rear wheels are turned in or out from a straight ahead position. When the wheels are turned in, toe is positive (+). When the wheels are turned out, toe is negative (-). The purpose of toe is to ensure that the wheels roll parallel. Toe also serves to offset the small deflections of the wheel support system that occur when the vehicle is rolling forward. In other words, with the vehicle standing still and the wheels set with toe-in, the wheels tend to roll parallel on the road when the vehicle is moving. STEERING_MANDO 25
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