Komatsu PC20R-8 Shop Manual page 48

2. TCC VALVE, LS VALVE, SERVO PISTON
1
2
3
4
SERVO PISTON
1. Spring
2. Spacer
3. Piston
4. Servo piston
LS VALVE
5. Piston
6. Piston
7. Sleeve
8. Spring
9. Union
10-30
a - P1 Port - Main pump pressure inlet port
b - GH Port - Gear pump pressure inlet port
c - P Port - From control valve (LS port)
LS
a
5
6
b
7
8
9
c
RKP01160
PC20R-8 PC27R-8