Maintaining and replacing the arm IO bone
Unzip the arm skin from shoulder to wrist.
Remove the arm IM pad.
Lift and slide out the used arm IO bone.
Puncture holes in the used IO bone can be repaired with Loctite 454 or similar superglue OR replace the IO bone completely when it has been significantly punctured.
Replace repaired or new arm IO bone.
Ensure that base of IO bone slots into place.
Place the arm IM pad back.
Zip up the arm skin.
CAUTION
If using fluids, ensure that the bone has been repaired properly, or use a new bone, to avoid causing internal leakage and damage.