HOW TO REPLACE THE FREEJUMP AIRBAG CARTRIDGE?

First of all, choose the capacity of the cartridge:
FREEJUMP AIRBAG :
50cc for children airbags of S and L sizes;
60cc for airbags : XXS Regular Fit, XS Regular Fit, XS Slim Fit, S Regular Fit, S Slim Fit, M Regular Fit , M Slim Fit, L Regular Fit;
85cc for airbags : L Slim Fit, XL Regular Fit and XXL Regular Fit.
X’AIR SAFE :
16gr for children body protectors of S and M sizes ;
18gr for children body protector of L size and body protectors of XXS, XS and XST sizes ;
20gr for body protectors of S size ;
24gr for body protectors of ST and M sizes ;
33gr for body protectors of MT, L, LT and XL sizes.
Then proceed to the steps below with the help of the explanatory video :
Step 1 : Unscrew the empty cartridge to remove it from the gas generator.
Step 2 : Unscrew the gas generator cap using an Allen key, until the indicator is at the top of the rail.
Step 3 : Reposition the piston with the Allen key. VERY IMPORTANT: bring back the piston in front of the hole using the Allen key!
Step 4 : Insert the holding clip. When inserting the keyball, make sure that you hear a clicking sound. TRÈS IMPORTANT : make sure you insert back the ball into the piston. Never insert back the ball without bringing back the piston in. front of the hole!
Step 5 : Start to screw back, first by hand, straight into the gas generator. It should be easy, please refrain from forcing and restart the process if necessary. Check the indicator and screw back all the way using the Allen key.
Step 6 : Make sure the replacement cartridge is new, and screw it back completely into the gas generator.