Vehicle Sun Visor Movement Problem- Case Study A premium UK automotive manufacturer had an aftermarket problem with the free movement of a sun visor. Due to tight tolerances in the sun visor design, there was a high level of friction between the sun visor bracket and the metal retaining cylinder and spring. The excessive force required to move the sun visor was not just a perceived quality issue but also a practical problem as the relatively high forces required to move the sun visor was putting strain on the plastic components. Additionally there was a creaking noise being produced during sun visor movement. ChallengesAny grease used should be odourless and also should not have compatibility issues with the plastic materials used in the sun visor design. Also the chosen grease should have

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