How to change CO2 Cartridge
After the activation, the key ball is separated from the key box. To reuse the vest, the key ball and a new CO2 cartridge need to be reinstalled to the key box as following steps.
Step 1
Step 2
Step 3
Step 4
Step 5
Step 6
Step 7
Step 8
Step 9
Step 10

Re-pack all air cushions and fasten all buttons and Velcro.
Step 11

Screw a new CO2 cartridge. (Please confirm if the seal of the cartridge is not punctured and it's new.)
Step 12

Take the connector out through the hole of the key box cover.
Close the zipper around the key box.
The end of Re-assembly.
Close the zipper around the key box.
The end of Re-assembly.