You carry out an inspection of the gate in the following order:

– turn off a gate cap;

– apply on the gate liquid so that it filled a gate cavity;

– at formation of a bubble tighten a gate zolotnik a reverse side of a cap;

– repeatedly check the gate in the specified way, at further education of bubbles and at impossibility to tighten a zolotnik replace the gate;

– screw a cap on the gate.