A device for manufacturing hollow glass article consists of a plurality of modular stations that, among other things, comprise blank molds and finish molds, wherein a housing is provided and can be displaced along a blank mold side in order to carry out at least control and servicing functions, and wherein said housing is formed by a key-like structure that is open in the direction of the blank mold side and serves as a carrier for at least one manipulation element consisting of multiple sections. On its free end, this manipulation element carries a tool or a device that is ready for use after it has reached the respective station. The shielding effect of the housing reliably protects an operator side against accidents due to inadvertent interventions in machine motion sequences.