Komatsu Galeo PC138US-8 Shop Manual page 141

10 Structure, function and maintenance standard
1 LS selector valve
2. Cooler bypass valve
3. Pressure compensation valve R (Service)
4. Pressure compensation valve R (Bucket)
5. Pressure compensation valve R (Arm)
6. Pressure compensation valve R (Boom)
7. Pressure compensation valve R (Right travel)
8. Pressure compensation valve R (Left travel)
9. Pressure compensation valve R (Blade)
10. Pressure compensation valve R (Swing)
11. Pressure compensation valve F (Swing)
12. Pressure compensation valve F (Blade)
13. Pressure compensation valve F (Left travel)
14. Pressure compensation valve F (Right travel)
15. Merge-divider valve spool
16. Pressure compensation valve F (Boom)
17. Pressure compensation valve F (Arm)
18. Pressure compensation valve F (Bucket)
19. Pressure compensation valve F (Service)
F: Flow control valve
R: Pressure reducing valve
No. Check item
20 Check valve spring
21 Check valve spring
PC138US, USLC-8
Standard size
Free length
Installed
x Outside
length
diameter
41.5 x 8.5 31.5
20.3 x 13.7 16
Criteria
Repair limit
Installed
Free length
load
5.88 N
—
{0.6 kg}
2.94 N
—
{0.3 kg}
SEN02549-02
Unit: mm
Remedy
Installed
load
If damaged or
deformed,
4.71 N
replace spring
{0.48 kg}
2.35 N
{0.24 kg}
7