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GTH-3713 - GTH-4017 - GTH-4514
TABELLEN EN BIJVOEGSELS
G-4.2
HYDRAULISCH SCHEMA GTH-3713 (Drw. 57.2201.1600 - rev. C)
capacity:
0.5 Litri
Pressure
precharge
switch
pressure
activating
50 bar
pressure
2-10 bar
F
R
R2
R1
Pressure
N'
switch
activating
pressure
70 bar
T1'
T1
P
B
T2'
Front axle
Rear axle
150 bar
T2
N
Hydraulically powered
Forks tilt cylinder
service emergency brakes
/
pedal pump
B
A
Rear axle
steering cylinder
Ev3
Ev4
T
P
Steering modes
Forks levelling
selector valve
slave cylinder
4 ways / 3 positions
Anti-shock
Front axle
valves
steering cylinder
cracking
pressure
R
L
200 bar
Steering rotating actuator
displacement: 315 cc rev
/
L
S
P
T
Max relief valve
cracking
pressure
140 bar
Ev1
R
T1
T2
Check valve
cracking pressure:
2.5 bar
Auxiliary gear pump
brakes stabilizers chassis levelling
/
/
displacement: 25 cc/rev
M
Diesel engine
Hydrostatic transmission pump
X1
X2
max displacement: 71 cc rev
/
Hydrostatic transmission
boost pressure test port
Document 57.0004.4700 - 01/2006
Double overcenter safety valve
piloting ratio: 4.2 1
/
Quick coupling
cracking pressure: 350 bar
hydraulic ports
Right stabilizer cylinder
Left stabilizer cylinder
Hydraulically piloted
double check valve
Forks attachment
piloting ratio: 4 1 /
quick coupling cylinder
Double overcenter safety valve
piloting ratio: 4 1
/
cracking pressure: 350 bar
Second section boom
telescoping cylinder
Sing
le overcenter safety valve
piloting ratio: 1
cracking pressure: 350 bar
Double overcenter safety valve
piloting ratio: 7.6 1
/
cracking pressure: 350 bar
Anticavitation valve
First section boom
cracking pressure
telescoping cylinder
5 bar
capacity:
0.5 Litri
precharge
pressure
50 bar
Sing
le overcenter safety valve
Check valve
piloting ratio: 1
4/
cracking pressure:
Boom functions hydraulic
cracking pressure: 350 bar
0.5 bar (option)
Check valve
Boom lift cylinder
cracking pressure:
8 bar (option)
Check valve
cracking pressure:
0.5 bar (option)
Hydrostatic transmission
Tp2
high pressure test port
Ev2
PS Fa Fa1
Fe
MB
450 bar
B
Ev5
Mechanical gear speed
4 ways/3 positions
450 bar
430 bar
Mechanical gear speed
25 bar
selector actuator
Boom functions pump
with integrated priority valve
A
displacement: 43 cc rev
MH
S
FS
MA
G
Mechanical gear (2 speeds)
Suction filter
Shutoff valve
Tp3
Suction screen
Shutoff valve
G-39
Pagina
Double overcenter safety valve
piloting ratio: 4.2 1
cracking pressure: 350 bar
Chassis levelling cylinders
B3
A3
B2
A2
B1
A1
Double overcenter safety valve
T
piloting ratio: 4.2 1
/
cracking pressure: 350 bar
P
A
2
0
1
B
4/
Boom functions
main valve
A
B
2
0
1
A
150 bar
2
0
1
B
A
290 bar
290 bar
Double overcenter safety valve
2
0
1
B
piloting ratio: 1
4/
cracking pressure: 350 bar
P
270 bar
LS
T
T
P
Tp
circuit test port
Tp1
Emergency electrical
M
motor driven pump set
3.2 cc/rev (option)
140 bar
X
Heat exchanger
G
T
P
cracking pressure: 5 bar
U
B
T1
Ev6
B
A
Vg max
selector valve
Hydrostatic transmission motor
max displacement: 80 ccrev
Vg min
/
T2
A
M1
Stabilizers/chassis levelling
/
main valve
1
0
2
Ev11
Ev12
1
0
2
Ev9
Ev10
1
0
2
Ev7
Ev8
220 bar
T1
Tp
Pp
Pv4
E
Pv3
E
Pv2
E
Pv1
Ev13
G1
MPR
FLT
RPM
Pp
Heat exchanger fan
hydraulic motor
displacement 20 cc rev
/
HYDRAULIC CIRCUIT
COLORS LEGENDA
Boom
/ s
teering, brakes, stabilizers,
chassis levelling pump pressure lines
Hydrostatic transmission
high pressure lines
Check valve
Boom
/ s
teering, brakes, stabilizers
and chassis levelling functions lines
Low pressure and transmission
charge pressure lines
Hydrostatic transmission and
boom functions valve piloting lines
Boom
/ s
teering, auxiliary and
transmission pumps suction lines
/
Tank lines
Oil tank
capacity
120 liters
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