Komatsu PC88MR-10 Shop Manual page 155

3. Swing valve
4. L.H. travel valve
5. R.H. travel valve
6. Boom swing valve
7. Merge-divider valve block
8. Boom valve
9. Arm valve
10. Bucket valve
11. Service valve
12. Cover
13. Assistant valve
14. Blade spool
15. Swing spool
16. L.H. travel spool
17. R.H. travel spool
18. Boom swing spool
19. Merge-divider valve
20. Boom spool
21. Arm spool
22. Bucket spool
23. Service spool
24. Pressure compensation valve
25. Suction valve
26. LS bleed valve
27. Travel junction valve + LS bleed valve
28. Boom lock valve
29. Cooler bypass valve
30. Safety valve
Relief pressure: 9.8 MPa {100 kg/cm
31. Safety valve
Cracking pressure: 27.9 MPa {285 kg/cm
32. Safety valve
Relief pressure: 19.6 MPa {200 kg/cm
33. G/P relief valve
Relief pressure: 21.1 MPa {215 kg/cm
34. Relief valve
Relief pressure: 26.5 MPa {270 kg/cm
35. Unload valve
Relief pressure: 2.9 MPa {30 kg/cm
36. Equalizer valve
37. Self-pressure reducing valve
38. Sequence valve
39. LS bypass valve
PC88MR-10
2 }
2 }
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10 Structure and function
Control valve
10-77