VERKTOEYANORDNING TIL BRUK VED UTSKIFTING AV ET INSTRUMENTSOM I SIN FUNKSJONSSTILLING OMSLUTTES AV ET INSTRUMENTHUSSOM KAN VAERE INNKOPLET I EN FLUIDLEDNING, ANVENDELSE OG FREMGANGSMAATE FOR UTSKIFTING AV INSTRUMENTET

摘要

A tool device for use in replacing an instrument (12) or another device which, in the operative position thereof, is surrounded by an instrument housing which may be coupled into a fluid line, especially at a critical location and/or in a place difficult to get at, e.g. under water, and/or within risky surroundings, and wherein said instrument (12), in the operative position thereof, is locked against extraction/pushing-out with respect to the instrument housing. Also, the invention comprises an instrument housing and a locking tool for use together with such an instrument (12), as well as a method for replacing the instrument. The tool device (2) has a tool housing (2') having a charging chamber (3) formed in order to accommodate a first locking tool (27) for neutralizing the locking of the instrument (12) to the instrument housing; a new intact instrument (12') having a design identical to that of said instrument (12) to be replaced; as well as a second locking tool (27') for locking of the new instrument (12') to the instrument housing subsequent to the new instrument (12') being in operative position within the instrument housing. The tool device (2) is provided with a pushing device (31) for pushing out the instrument (12) to be replaced and first locking tool (27), as well as for pushing in a new instrument (12) into the instrument housing.