Komatsu PC20R-8 Shop Manual page 65

1 - Spool (hammer)
2 - Spool (bucket)
3 - Spool (boom)
4 - Spool (arm)
5 - Spool (blade)
PC20R-8 PC27R-8
Section B - B
Sezione B - B
6 - Spool (boom swing)
7 - Spool (R.H. travel)
8 - Spool (L.H. travel)
9 - Spool (swing)
10 - Main relief valve
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4
5
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8
9
10
RKP01620
10-47