Komatsu PC88MR-10 Shop Manual page 152

Hydraulic excavator
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10 Structure and function
Control valve
9-spool valve
(North America specification)
A9: To attachment, actuator
B9: To attachment, actuator
PA9: From attachment solenoid valve
PA9: From attachment solenoid valve
1. Pressure compensation valve F (attachment)
2. Pressure compensation valve R (attachment)
3. Suction valve
10-74
PC88MR-10

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