Komatsu PC200-8M0 Shop Manual page 225

403 Hydraulic system, Part 3
PPC valve
Travel PPC valve
PPC: Abbreviation for Proportional Pressure Control
P : From self-pressure reducing valve
P1 : To control valve (L.H. travel REVERSE port)
P2 : To control valve (L.H. travel FORWARD port)
P3 : To control valve (R.H. travel REVERSE port)
P4 : To control valve (R.H. travel FORWARD port)
T : To hydraulic tank
PC200, 200LC, 220, 220LC-8M0
1
SEN06121-00
27
10-403