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4.4.2 Checking the pressure reducer for the bracing bubble
First disconnect the blue 6 mm hose (coming from the hose package) from the pressure
reducer 2 (DM2). Press the black circlip towards the screw fitting and pull on the hose at the
same time.
Then pull the T-piece off the way-valve 1. For this purpose press the circlip on the way valve
towards the valve and pull on the T-piece at the same time.
Now connect the T-piece to the output of the pressure reducer 2 (DM2) and connect the blue
6 mm hose.