Summary: Incomplete military instructional film lacking parts 2 and 3 uses titled animation and some film to illustrate causes and cures of jamming in the MG 34.
Description: (Reel 1) Main title and section A are missing. B: causes of jamming. Animation and titles list dirt, wear and tear of parts and weakening or breaking of springs as causes. C: fouling as main cause of jamming. Animation shows the accumulation of dirt as cartridge is fed into chamber. (Reel 2) Part 4. Jamming from non-ejection of empty cartridge cases. A: empty cartridge jamming ejection case. Film and animation show removal of stuck cartridge and firing continuing after barrel change. B: misfire. Bullet is removed from breech and bolt changed. C: empty cartridge case bag. Missing. (Reel 3) Part 5. Other causes of malfunctioning cover the cocking and firing mechanisms.
Alternative Title:JAMMING ON THE MG 34 [Translation]