For the newer Inflatable PFDs, most manufactures will tell you when you should replace your cylinder, and most have an easily viewable inflator status.
For instance - The Mustang Deluxe Automatic Inflatable PFD: Universal fit states: No inflator maintenance is require for 5 years unless the PFD has been inflated. You can easily view the inflator status and replacement date through the safety inspection window. Green indicates ready for use. However, each manufacturer can have different specification, so it's best to check with your manufacturer and for your specific vest type.
For more information regarding the Inflatables, visit:
The link below
According to the manufacturers instructions.
We do not know what you mean by "PFD", please do not use abbreviations. But the answer would be when the instructions for the "PFD" say it needs to be replaced.
For the newer Inflatable PFDs, most manufactures will tell you when you should replace your cylinder, and most have an easily viewable inflator status. For instance - The Mustang Deluxe Automatic Inflatable PFD: Universal fit states: No inflator maintenance is require for 5 years unless the PFD has been inflated. You can easily view the inflator status and replacement date through the safety inspection window. Green indicates ready for use. However, each manufacturer can have different specification, so it's best to check with your manufacturer and for your specific vest type. For more information regarding the Inflatables, visit: The link below
that is not a question It might be a co2 or compressed air container for the collapsible/inflatable spare tire that was available for the 69 firebird
the CO2 cartridges must be checked frequently and even moderatly drinking can lead to short term impairments(A+)
disconnect the attached wire and unscrew the sensor. there is a gel that should be applied to the sensor before you replace it.
when its empty
The 2 should be written as subscript... CO2
I want to replace the co2 sensor in my crv myself is it something I can do?
The CO2 will be depleted and you will not be able to shoot anymore. If you leave a full one in there for a long time, it will slowly leak, or could damage your gun, so you should remove it after each game day.
You cannot repair an O2 sensor. Replace it.
It should be at least 99.5 percent CO2.