Rear Drum Brake Details:
1 - brake drum; 2 - brake shoe; 3 - friction lining; 4 - brake shield; 5 - expansion bar; 6 - lower tension spring; 7 - upper tension spring; 8 — bracket; 9 — shoe clamping device; 10 - wheel cylinder; 11 — air release nipple; 12 - Wheel cylinder parts; 13 — parking brake drive lever.
(The original is located on the internet portal: BMWMan.ru)