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May 1, 2012 Service bulletin

Caterpillar: moisture condensation on headlight lens will become prevalent under certain atmospheric...

Caterpillar technical service bulletin TIB-U-6473-00 for 2012-2013 Caterpillar CT660.

Bulletin number
TIB-U-6473-00
Component
Exterior lighting: headlights: concealment devices
Summary
Caterpillar: moisture condensation on headlight lens will become prevalent under certain atmospheric conditions, turning droplets, inside lamp, to vapor and causing cold lens to have condensation on it.

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