Komatsu PC88MR-10 Shop Manual page 228

10 Structure and function
Solenoid valve
Oil flow adjuster EPC valve for attachment
(PC88MR-PQJ6-041-K-00-A)
C1: To control valve port PA9
C2: To control valve port PB9
P: From 4-spool solenoid valve port A1
T: To hydraulic tank
1. 1st-line attachment L.H. flow adjustment EPC valve
2. 1st-line attachment R.H. flow adjustment EPC valve
3. Block
10-150 PC88MR-10