jcb Robot 160 - Page 252

Section E - Hydraulics
Circuit Diagrams
Standard and High-flow Servo Machines
E - 55 E - 55
9803-9450-2
Fig 42.
P
FWD
LEFT
T
D
REV
BRAKE
VALVE
4
REV
BUCKET RAM
BORE DIA 90
ROD DIA 40
T
LIFT RAM
BORE DIA 75
ROD DIA 50
SAUER SUNSTRAND 42-41
TANDEM HYD SERVO DISPLACEMENT CONTROL
TRANSMISSION PUMP
0.041 L/REV
FWD
OIL COOLER
385 BAR
385 BAR
385 BAR
385 BAR
SUCTION
STRAINER
125 MICRON
RIGHT
T
C
SUCTION 2" TUBE
HPCO
AUX DRIPLESS FLAT
FACED COUPLINGS
FEED FROM JOYSTICK F PORT TO FRONT PUMP M5 = FLOW OUT A PORT TO MOTOR A PORT DRIVE REVERSE
FEED FROM JOYSTICK D PORT TO FRONT PUMP M4 = FLOW OUT B PORT TO MOTOR B PORT DRIVE FORWARD
FEED FROM JOYSTICK E PORT TO REAR PUMP M4 = FLOW OUT C PORT TO MOTOR B PORT DRIVE REVERSE
FEED FROM JOYSTICK C PORT TO REAR PUMP M5 = FLOW OUT D PORT TO MOTOR A PORT DRIVE FORWARD
ENGINE
71 L/MIN
P
SERVO CONTROL VALVE
1
TP
SERVO CONTROL VALVE
DF
REV
C
P
A
FWD
B
FLOAT VALVE
TP
T
FEED LHS N/S MOTOR INTO B=FWD
FEED LHS N/S MOTOR INTO A=REV
FEED RHS O/S MOTOR INTO B=REV
FEED RHS O/S MOTOR INTO A=FWD
2
C
E
B
3
D
EMERGENCY LOWER
VALVE
A
A
B
M5 M4
M4
M5
F
SP1
24 BAR
M4
M5
REAR PUMP
SERVO CUTOFF
VALVE
FRONT PUMP
SP2
JOYSTICK
CONNECTIONS
SP3
PLAN VIEW PUMP
M5
E
LHS N/S
RHS O/S
M4
SP4
JOYSTICK PORT 1 TO VALVE PORT B1
JOYSTICK PORT 2 TO VALVE PORT B2
JOYSTICK PORT 3 TO VALVE PORT A1
JOYSTICK PORT 4 TO VALVE PORT A2
CROWD (JOYSTICK IN)
TIP (JOYSTICK OUT)
LIFT (JOYSTICK BACK)
LOWER
JOYSTICK FWD)
A
C
FILTER
A2
PLAN VIEW
HUSCO VALVE
45
B1
A1
2
T
P
B2
1
JOYSTICK
CONNECTIONS
INTO VALVE
BLOCK
D
PARALLEL
LIFT
VALVE.
2 BAR CHECK
VALVE
12 CC/REV
X 1:0.85 RATIO
2800 RPM = 34 L/MIN
21.3 CC/REV
@ 2800 RPM
= 60 L/MIN
25.4 CC/REV
@ 2800 RPM
= 71 L/MIN
TP
T
P
2
P
1
D
B3
A3
P1
P2
TP
3
6
DUMP
VALVE
DRIVE MOTOR
DRIVE MOTORTRANSMISSION PUMP
LOADER
NOTE:
NOT REQUIRED
WITH FLOAT VALVE
LOADER VALVE
P
T
CHARGE
FILTER
A
B
C
P2
T3
B1 P2
B1
T3
AUX OPP VALVE
131 L/MIN
HF VALVE
ATTACHMENT
0.5 BAR
CHECK VALVE
ACCUMULATOR
5 BAR 24CC
B2
B3
B1
A3
A2
A1
P
1
2
3
4
5
6
7
8
9
9a
9b
9c 9d
9f
10
11
12
12a
12b
12c
12e
12d
14
X2
F1
15
16
17
19
19a
19b
20
T
C
F2
P1
P2
P3
P5
P4
M1
M1a
M2
M2a
S
T
X1
Y
Z
13
13b
13c
13a
13d