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wheels If a customer brings a vehicle to the workshop complaining about “vibration”, a road test is essential prior to balancing the wheels. running. ♦ You will be able to determine in which speed range the rough running occurs. – Raise the vehicle on a lifting platform immediately after the road test. – Mark the positions of the tyres on the vehicle. Tyre position Marked with ... Front left tyre FL Front right tyre FR Rear left tyre RL Rear right tyre RR – Remove wheels from vehicle. 12.4 Balancing wheels on stationary wheel balancing machine • Road test has been carried out ⇒ page 325 . Clamp wheel into wheel balancing machine Note When balancing wheels, please remember that cleanliness is ab‐ solutely essential, as indeed it is in the case of any other repair work you carry out. Only then can you attain a flawless result! Dirt and rust in the area of the contact surfaces and centre of the wheel distort the result. recess on the inside of the wheel before mounting the wheel on the wheel balancer. – Mount the wheel with tyre on the wheel balancer. 12. Rough running due to wheels/tyres - causes and rectification 325
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