Yale A7S1 Service Manual page 38

Brake System
1. BRAKE CYLINDER
2. CLUTCH DISCS WITH
FRICTION PLATE ASSEMBLY
3. BOTTOM PLATE
4. BRAKE ADJUSTER
5. SPRING CABLE
6. BRAKE SHOES WITH
FRICTION PLATE
7. SPRING PULL ROD
8. SPRING SEAT
9. COMPRESSED SPRING
The brake action in forward movement is as follows:
(see Figure 27). Through operating brake wheel
cylinder, the Brake shoes are effected by two forces of
equal size but reverse directions, respectively, for
30
10. RUBBER PLUG
11. PULL SPRING
12. GUIDE PANEL
13. GUIDE PLATE
14. RETURN SPRING (REAR)
15. TORSION SPRING
16. PAWL
17. PIN
18. LEFT BRAKE PUSH ROD
Figure 26. 3-3.5T Wheel Brake
Brake shoes and brake drum to get into contact with
each other, while the primary Brake shoes is pressed
onto the adjuster with support of friction force between
Brake shoes and brake drum, thereby for brake
8000 YRM 2199
19. SPRING
20. PARK BRAKE PULL ROD
21. PIN
22. ELASTIC GASKET
23. ROD-PIN RETAINER
24. BRAKE CABLE
25. WASHER
26. BOLT
27. RETURN SPRING