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Perform the operation in a clean place free from dirt.
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Wear fingerstall or plastic gloves when doing the operation (Do not use fabric gloves).
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When removing the navigation display visor, do not touch the scale plate.
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If dirt is attached to the scale plate when installing a new navigation display visor to the LCD assembly. clean it using compressed air.
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When installing the navigation display visor to the LCD assembly, be careful not to touch the scale plate.
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Check that the navigation display visor and the LCD assembly are properly installed.
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Since the LCD assembly and the navigation display visor are installed at an angle, be sure that the screws are properly seated. If not properly seated, tighten the screws.
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Check that the navigation display unit assembly has no bruises.
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When removing the navigation display visor, do not face the LCD assembly downward. Also, do not hold it vertically.