Be sure to check your lifejacket carefully — you may have one with one of these defective pieces.
The Hammar Hydrostatic Inflator is attached to a lifejacket with a sealing ring. In 2006, CM Hammar upgraded the sealing ring with new state-of-the-art raw materials to eliminate potential defects and increase long-term durability. A small number of sealing rings manufactured before 2006 have suffered premature material degradation, most likely after being exposed to extreme environmental conditions. When exposed to high temperature and high humidity for a long period of time, the sealing ring might become stiffer, change color and in severe cases cracking of the plastic may occur. The change does not occur overnight and can be detected at recommended service inspections.
CM Hammar is concerned that a damaged sealing ring might put the user at risk. If you have a lifejacket manufactured before 2006 that has not been serviced recently, we recommend that you contact your nearest authorized service station for an annual service. The date of manufacture can be identified on the inside of the lifejacket cover. If you still want to do the check of the sealing ring yourself, please watch the film here for further information.
Lifejackets manufactured after 2006 are not affected by this Safety Alert.