Hermes II Piston Assembly Procedure

Using a 1/4 inch torque wrench, ensure that the bolts holding the piston together are very very tight. If the bolts are loose, the piston will lose pressure as it extends. (torque wrench adapter in piston box)
Use multimeter to check continuity of Firebolt (should be about 1.0-1.4 ohms) and twist the wires to short it. Two people should visually confirm that it is shorted. Wrap the Firebolt with five wraps of Teflon tape. Use pliers to screw firebolt into the NPT plug.
Everyone put on safety glasses. From now on, everyone within the vicinity of the pyrotechnics must wear safety glasses.
Measure and pour 0.2 g of black powder into the other side of the plug, holding over a weigh boat to catch any fallout. Seal the opening by wrapping over the head and opening three times with Teflon tape. Make sure Teflon tape is flush on the inside.
Repeat steps b-d
Compress the piston completely!
Screw an elbow joint into a side female end of the tee after adding Teflon tape.
Wrench the elbow and tee assembly into the inlet hole of the piston with 5 wraps of Teflon tape until extremely tight and turned upright.
Put the 2 assembled plugs into two remained female ends of tee fitting
Clock the tee fitting close to the body of the piston so the piston fits better into AV bay
Test the piston by pulling up rod for 5 secs and seeing it it is sealed
Log Firebolts