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1)
SERVICE BRAKE RELEASED
FRONT AXLE
17
5bar
120bar
15
13
B1
A1
A2
15
A3
16
PS
95bar
B
PS1
16
95bar
14
A4
70bar
PP
P
HYD. COOLER
D
T
P
C
160bar
10
9
8.3cc/rev
When the pedal of brake valve(18) is released, the operating force is eliminated by the force of the
spring, and the spool is returned.
When the spool removes up, the drain port is opened and the hydraulic oil in the piston of axles
return to the tank(34).
Therefore, the service brake is kept released.
BL
BR
18
T
P
170bar
T2
125bar~
6
150bar
T1
10bar
35bar~
50bar
T
12
23
B1
1
T/M
E/G
14.5cc/rev
5
TILT
LIFT
1
2
3
4
5
6
DOWN
UP
BWD FWD
b1 a2
b2 a3
b3 a4
a1
23
X2
X1
22 bar
29 bar
280bar
300bar
B2
74cc/rev
63cc/rev
S1
L2
L1
S2
L5 L4 L3
4-4
Steering unit
7
8
b4
B3
11
20cc/rev
S3
8
7
MCV
MCV
34
110DEBS02
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