[. . . ] Although illustrations of type FK74C are shown throughout these installation instructions, the details given apply for all patterns. [. . . ] Nicht herausdrehen Do not remove completely Ne pas l'enlever Niet geheel verwijderen Non svitare completamente No quitarlo If the pressure is to be set to a lower value, the outlet pressure must first be relieved to achieve the required setting. FK74C FKN74C Nicht herausdrehen Do not remove completely Ne pas l'enlever Niet geheel verwijderen Non svitare completamente No quitarlo Do not use any cleaning materials containing solvents for cleaning plastic parts. Filters must not be installed in locations where ultra violet rays (sunlight) or solvent fumes are present. The valves are exclusively for use for applications detailed in these installation instructions. [. . . ] Any variation from this or other use will not comply Press in diaphragm with finger and theninsert slip ring (check for correct positioning) Remontage en sens inverse · [. . . ]