Fecha de publicación: -- Fuente: WIPO "tomato" Method for monitoring the status of a jaw system (8) in a packaging machine (1), the jaw system (8) being configured to transversally seal a web of packaging material (3) in the form of a tube (2) to form a transverse seal (TS) in the tube (2); the method comprises the steps of: acquiring (S200) a signal (Sp) indicative of the variation over time of a pressure exerted by at least one jaw (9) of the jaw system (8) during operation of the same jaw system (8); processing (S201) the acquired signal (Sp) to determine one or more indicators (I) indicative of the occurrence of possible anomalies in the operation of the jaw system (8) of the packaging machine (1); and adjusting (S202) the operation of the jaw system (8) based on the determined one or more indicators (I).