English to French Tech/Engineering Electronics / Elect Eng lighting equipment

Ensure inside of windshield is free of grease and dirt. Slightly loosen bolts on mounting brackets to allow suction cups to swivel. Position lighthead in desired position and check that lens of lighthead is vertical when visor is flush against windshield to ensure correct light protection. Trim visor if neccessary with cutting tool / knife. Tighten bolts on mounting bracket. Moisten suction cups and press lighthead firmly against windshield.