Komatsu Galeo PC138US-8, Руководство по ремонту, Страница: 139 / 946

10 Structure, function and maintenance standard SEN02549-02
PC138US, USLC-8
5
1. Suction safety valve (Service)
2. Suction valve (Bucket)
3. Suction valve (Arm)
4. Suction valve (Boom)
5. Lift check valve
6. Suction valve (Right travel)
7. Suction valve (Left travel)
8. Suction valve (Blade)
9. Suction safety valve (Blade)
10. Suction valve (Left travel)
11. Suction valve (Right travel)
12. Main relief valve
13. Suction valve (Boom)
14. Suction valve (Arm)
15. Suction valve (Bucket)
16. Suction safety valve (Service)
17. Suction safety valve
18. Spool (Service)
19. Spool (Bucket)
20. Spool (Arm)
21. Spool (Boom)
22. Spool (Right travel)
23. Spool (Left travel)
24. Spool (Blade)
25. Spool (Swing)
26. Unload valve
27. Unload valve
Unit: mm
No. Check item Criteria Remedy
28 Suction valve spring
Standard size Repair limit
If damaged or
deformed,
replace spring
Free length
× Outside
diameter
Installed
length
Installed
load
Free length
Installed
load
46.8 × 7.5 40.6
5.49 N
{0.56 kg}
—
4.41 N
{0.45 kg}
29 Piston return spring 72.7 × 20.6 42.5
135 N
{13.8 kg}
—
108 N
{11.0 kg}
30 Suction valve spring 39.2 × 4.45 33.5
5.1 N
{0.52 kg}
—
4.12 N
{0.42 kg}
31 Spool return spring 41.8 × 19 38.5
141 N
{14.4 kg}
—
113 N
{11.5 kg}
32 Spool return spring 41.44 × 19.3 38.5
137 N
{13.96 kg}
—
110 N
{11.2 kg}
33 Spool return spring 27.14 × 25.8 25.5
55.9 N
{5.7 kg}
—
44.7 N
{4.56 kg}
34 Spool return spring 32.4 × 11 31.4
60.2 N
{6.137 kg}
—
48.2 N
{4.91 kg}
35 Spool return spring 76.78 × 20.9 70
423 N
{43.1 kg}
—
338 N
{34.5 kg}
36 Spool return spring 45.7 × 28 43
221 N
{22.55 kg}
—
177 N
{18.04 kg}
37 Spool return spring 42.4 × 28 39
222 N
{22.6 kg}
—
178 N
{18.1 kg}
38 Spool return spring 45.6 × 28 43
230 N
{23.5 kg}
—
184 N
{18.8 kg}
39 Spool return spring 45.81 × 28 43
203 N
{20.7 kg}
—
163 N
{16.6 kg}