Komatsu 830E-AC Shop Manual page 566

10. Install the spool return spring (15) into spool (8).
11. Insert reaction plunger (16 or 17) into regulator
spool.
12. Install regulator spool (8) into regulator sleeve
(14).
13. Repeat Steps 4 through 12 for the second cir-
cuit.
14. Lightly lubricate the large retainer plate O-ring
(25) and install into the counter bore in the bot-
tom end of the valve.
15. Install the retainer plug (26) into the counter
bore on the bottom of the valve. Make sure
steps on the retainer plug are facing the counter
bore or toward the top of the valve.
J3-12
16. Install the base plate (27) on top of the retainer
plug. Tighten the four allen screws (29) evenly,
alternating diagonally, to evenly seat the regula-
tor sleeve assembly. Tighten to 15.8 - 16.9 N·m
(140 - 150 in. lbs) torque.
17. Using a new O-ring (22, Figure 3-5) and seal
(28), install plate (30) on valve body.
18. Install the actuator base (6, Figure 3-4) on top of
the valve. Make sure to position properly for
correct port direction. Tighten the two socket
head cap screws (5) and tighten to 20.3 - 21.5
N·m (180 - 190 in. lbs) torque.
19. Screw the adjustment collars (1, Figure 3-5)
onto the top of the actuation plungers. Screw all
the way down until they bottom on the threads.
Brake Circuit Component Service J03034