Komatsu 830E-AC Shop Manual page 553

J02037 Brake Circuit
FIGURE 3-2. BRAKE VALVE
(FULL CUT-AWAY)
1. Actuator Cap
2. Adjustment Collar
3. Actuator Base
4. Actuator Plunger
5. Wiper Seal
6. Poly-Pak Seal Assembly
7. Valve Body
8. Glyde Ring Assembly
9. Plunger Return Spring
10. Regulator Springs (B1)
11. Regulator Springs (B2)
12. Spring Seat
(B2 Parts 13-16)
(Front Brake)
13. Spool Return Spring
14. Regulator Spool
15. Regulator Sleeve
16. Reaction Plunger
(B1 Parts 17-20)
(Rear Brake)
17. Spool Return Spring
18. Regulator Spool
19. Regulator Sleeve
20. Reaction Plunger
21. Retainer Plug
22. Base Plate
1.
1.
A. Adjustment Collar
Contact Area
B. PX Port
C. Automatic Apply Piston Area
D. Tank Port
E. Orfice
F. Brake Apply Port
G. Reactionary Pressure Area
H. Supply Port
J2-7