Komatsu PC20R-8 Shop Manual page 38

HYDRAULIC PUMP
PC20R-8
1
a
2
d
a - P1 Port - To control valve (P port)
b - P2 Port - To control valve (P2 port)
c - P Port - From control valve (LS port)
LS
d - S1 Port - From hydraulic tank
1. Main pump
2. Gear pump
10-20
X
Vista X
View X
c b
RKP00060
PLS
SPECIFICATIONS
Type: PVK
Displacement: 22 cc+2.75 cc
Set pressure:
- Main pump: 206 bar (210 kg/cm
2
- Gear pump: 29 bar (30 kg/cm )
PC20R-8 PC27R-8
P1 P2
S1
RKP00320
2
)