Komatsu Galeo PC138US-8 Shop Manual page 143

10 Structure, function and maintenance standard
1. LS selector valve
Swing valve
2. Pressure compensation valve F
3. Spool
4. Pressure compensation valve R
5. Swing bleed valve
Blade valve
6. Suction safety valve
7. Suction valve
8. Spool
9. Pressure compensation valve R
10. Pressure compensation valve F
L.H. travel valve
11. Pressure compensation valve F
12. Suction valve
13. Suction valve
14. Spool
15. Pressure compensation valve R
16. LS check valve
F: Flow control valve
R: Pressure reducing valve
No. Check item
17 Check valve spring
18 Check valve spring
19 Retainer spring
PC138US, USLC-8
Standard size
Free length
Installed
x Outside
length
diameter
23.3 × 12.5 23
21.9 × 5 15.8
9.1 × 4.2 7.4
Criteria
Repair limit
Installed
Free length
load
3.92 N
—
{0.4 kg}
1.96 N
—
{0.2 kg}
0.98 N
—
{0.1 kg}
SEN02549-02
Unit: mm
Remedy
Installed
load
If damaged or
3.14 N
deformed,
{0.32 kg}
replace spring
1.57 N
{0.16 kg}
0.78 N
{0.08 kg}
9