Re-assembling airbag (Key Box B-type)
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.
1
![](https://www.hit-air.com/archives/006/201808/923330b9dbf38864eec3ae6d3f167809.jpg)
Prepare a set of the hexagon wrench and setting bolt. (The hexagon wrench and screw bolt are provided with a vest)
2
![](https://www.hit-air.com/archives/006/201808/75964f1819933f0cb045f170b913bb24.jpg)
Insert the setting bolt to the bottom of the key box.
3
![](https://www.hit-air.com/archives/006/202103/e3afd832cfeec179359880a6242711ec.jpg)
Screw the setting bolt by the hexagon wrench. The metal hole of the key box comes down accordingly.
4
![](https://www.hit-air.com/archives/006/202103/da772367200a96fefbcae266f79b5da8.jpg)
Put the key ball and its metal ring to the metal hole
5
![](https://www.hit-air.com/archives/006/201808/0be6b3c51d5cbeffe6ecd52caf8204e1.jpg)
Lower the red guard to check if the key ball is installed correctly. In case the red guard doesn’t come down fully, the key ball is not installed correctly.
6
![](https://www.hit-air.com/archives/006/201808/045349ad4991c8bfe6b42d875eb42d80.jpg)
Unscrew the setting bolt and take it away from the bottom of the key box.
7
![](https://www.hit-air.com/archives/006/201808/4167d74a154219d48a89d41b1dc2d357.jpg)
Lift the red guard to the upper position.
8
![](https://www.hit-air.com/archives/006/202104/4b8b5768a13ca0333b448767efecaec4.jpg)
Unscrew used CO2 cartridge and take it away from the key box.
![](https://www.hit-air.com/archives/006/201808/33a7d034e8cbe6f070013af7a6511022.jpg)
![](https://www.hit-air.com/archives/006/202103/8063d8b880d9109123a6b89a8b164339.jpg)
9
![](https://www.hit-air.com/archives/006/201808/9b0d68338a91097a0ed4297d720cd2cc.jpg)
Remove air from the vest.
10
![](https://www.hit-air.com/archives/006/201808/3d6d70d8ce6d8b37ede9a12963846c1a.jpg)
Re-pack all air cushions and fasten all buttons and Velcro.
11
![](https://www.hit-air.com/archives/006/201808/9b93c8159b87fcef7eeeb1a8c4c82d15.jpg)
Screw a new CO2 cartridge. (Please confirm if the seal of the cartridge is not punctured and it's new.)
12
![](https://www.hit-air.com/archives/006/201808/0f58ae56b23ebf290bbf63b6692510bb.jpg)
Take the connector out through the hole of the key box cover.
Close the zipper around the key box.
The end of Re-assembly.