Fig 56. Parts of ignition head and ignition cylinder.
(c) The outer-case pin (on the outside surface of the outer spring case) fits into the notch in the ignition shield and holds the spring case as the shield is screwed into position. This action winds the spring in the case.
(d) A snap ring holds the spring case on the ignition-head body.
(8) Ignition shield, a cylindrical, thin-metal tube with a conical front end. The shield guides the flame and protects the firer. Eight holes around the base of the cone provide an air intake for burning the fuel. The base of the shield is threaded, and it screws onto the ignition-head body. A notch ([Fig 56]) in the base of the shield receives the latch and the outer-case pin of the spring case.
b. Removal of ignition head. To remove the ignition head, proceed as follows:
(1) Remove shield by lifting latch and unscrewing shield counterclockwise. ([Fig 14]) Keep hands and face away from front of barrel.
(2) If ignition cylinder has not been removed, remove it or allow it to fall off barrel.
(3) Pry off snap ring which holds spring case in position, using screw driver. ([Fig 57]) Be careful not to damage or break the ignition-head body by applying too much leverage.
(4) Remove the four screws and lock washers which hold ignition-head body and coverplate together. Lift off coverplate.
(5) Trigger, trigger spring, trigger rod, latch, and latch spring may be removed.