30. AFTER FIRING.
When the firer has returned from his mission, he should:
a. Remove and discard the ignition cylinder, as follows:
(1) Point gun at the ground.
(2) Press latch. ([Fig 14])
(3) Unscrew the ignition shield and allow ignition cylinder to fall out. (Be careful to keep the hands away from the front of the cylinder.)
(4) Save the partly used cylinder for training use or destroy it by firing from gun after fuel tanks have been emptied. For information on care, handling, and storage of cylinders, see Paragraph [31].
b. Close the pressure-tank valve by turning valve handle clockwise (to conserve remaining pressure in pressure tank).
c. Point the gun away from personnel and blow out the remaining fuel, if any, from the fuel tanks by squeezing the valve lever and grip safety until there is no further discharge. The trigger should not be used during this operation.
d. Take off tank group from the back.