Baroness LM331, Service Manual, Page: 45 / 165

Reverse Traveling (2WD)
EF P
T
P1
RV
2
L R
A2
B2
B1
Up/down cylinder
Front
Right mower
Gear motor
Orbitrol R
V
3:6.9MPa
P4 :51cm
3
/rev
Piston pump P1:16.4cm
3
/rev
P2:4.9cm
3
/rev
P3:1
1.2cm
3
/rev
R
V
1:20.6MPa
R
V
2:0.6MPa
Left mower
Slow return valve
Stop valve
Rear mower
Stack valve R
V
4:13.7MPa
1.6
2.5
Rear
Steering cylinder
G
P
T
RV
4
2WD/3WD changeover valve
Check valve
Oil cooler
P1
RV
1
R
V
1
P2
S1
S2
B1
B3
T
B2
AB
A
B
B
R
A
P
Normal rotation
P3
RV
3
P4
P2
Hydraulic oil filter 10um
B
A
High pressure Low pressure Charge Intake Direction Return
Front wheel motor 158cm
3
/rev
Front wheel motor 158cm
3
/rev
Rear wheel motor 158cm
3
/rev
pizs5v-012E
Reverse Traveling (2WD)_001
Hydraulic system
LM331
Hydraulic system
Page 4-19
Hydraulic circuit flow