Komatsu 830E-AC Shop Manual page 698

FLOW AMPLIFIER
Removal
Relieve pressure before disconnecting hydraulic
and other lines. Tighten all connections before
applying pressure.
Hydraulic fluid escaping under pressure can
have sufficient force to enter a person's body by
penetrating the skin and cause serious injury and
possibly death if proper medical treatment by a
physician familiar with this injury is not received
immediately.
1. Turn the key switch OFF and allow 90 seconds
for the accumulators to bleed down. Turn steer-
ing wheel to make sure no oil under pressure
remains. Disconnect, plug, and identify each
hydraulic line.
2. Support the flow amplifier valve and remove the
mounting cap screws. Remove valve.
3. Move valve to a clean work area for disassem-
bly.
Installation
1. Support the flow amplifier and move into posi-
tion.
2. Install mounting cap screws and tighten to stan-
dard torque.
3. Identify hydraulic line location, unplug lines and
connect at proper location, tighten fittings
securely. Use new O-rings on the flange fittings.
L5-14
FIGURE 5-8. FLOW AMPLIFIER VALVE
1. Cap Screw
2. Lockwasher
3. Cap Screws
4. Lockwasher
5. Cover
6. O-Ring
7. O-Ring
8. O-Ring
9. Not Used
10. O-Ring
11. O-Ring
12. Shock/Suction Valve (Complete)
13. Orifice Screw
14. Valve Housing
15. Counterpressure Valve (Complete)
16. O-Ring
17. Plug
18. Plug
19. Seal
20. Relief Valve (Complete)
21. Steel Seal
22. Stop
23. Spring
24. Spring
25. Spring Control
26. Orifice Screw
27. O-Ring
28. Shock/Suction Valve (Complete)
29. Main Spool
30. O-Ring
31. Spring Control
32. Spring
33. Spring
34. Spring Stop
35. Orifice Screw
36. Cap Screws
37. Cap Screw
38. Lockwasher
39. Lockwasher
40. O-Rings
41. Stop
42. Spring
43. Spool
44. Name Plate
45. Orifice Screw
46. Spring
47. Cover
48. Pins
49. O-Rings
50. Not Used
51. Amplifier Spool Assembly (Complete)
52. O-Ring
53. Orifice Screw
54. Check Valve
55. Spring
Steering Component Repair L05035