Page
G-21
Document 57.0007.0200 - 01/2006
TABLES AND DOCUMENTS ENCLOSED
Handler with telescopic boom
GTH-4013
G-4 HYDRAULIC SCHEME - GTH-4013 (Drw. 57.2201.2200 - rev. B)
M
X2
MH
S
A
T1
PS
Fa
Fa1
Fe
MB
T2
R
N
R
F
P
B
N’
B
MA
FS
L
S
L
R
T
P
Diesel engine
Hydrostatic transmission pump
max displacement: 71 cc rev
/
Auxiliary gear pump
brakes stabilizers chassis levelling
displacement: 20 cc/rev
/
/
Suction screen
Suction screen
Anticavitation valve
cracking pressure
5 bar
Check valve
cracking pressure:
2.5 bar
Check valve
cracking pressure:
0.5 bar (option)
Check valve
cracking pressure:
8 bar (option)
Check valve
cracking pressure:
0.5 bar (option)
Oil tank
capacity
130 liters
Steering rotating actuator
displacement: 315 cc rev
/
Front axle
Rear axle
Forks levelling
slave cylinder
Left stabilizer cylinder
Right stabilizer cylinder
Chassis levelling cylinders
Second section boom
telescoping cylinder
Third section boom
telescoping cylinder
Boom lift cylinder
Forks tilt cylinder
Double overcenter safety valve
piloting ratio: 4 1
cracking pressure: 350 bar
/
Double overcenter safety valve
piloting ratio: 4.2 1
cracking pressure: 350 bar
/
Double overcenter safety valve
piloting ratio: 4.2 1
cracking pressure: 350 bar
/
Double overcenter safety valve
piloting ratio: 4.2 1
cracking pressure: 350 bar
/
Double overcenter safety valve
piloting ratio: 7.6 1
cracking pressure: 350 bar
/
Double overcenter safety valve
piloting ratio: 4/1
cracking pressure: 350 bar
Sing
4/
le overcenter safety valve
piloting ratio:
1
cracking pressure: 350 bar
Sing
4/
le overcenter safety valve
piloting ratio:
1
cracking pressure: 350 bar
25 bar
430 bar
450 bar
450 bar
Max relief valve
cracking
pressure
140 bar
Anti-shock
valves
cracking
pressure
200 bar
Quick coupling
hydraulic ports
Steering modes
selector valve
4 ways / 3 positions
Front axle
steering cylinder
Rear axle
steering cylinder
Tp3
Tp2
Tp1
Hydraulically piloted
double check valve
piloting ratio: 4 1
/
R1
T1
T1’
T2’
T2
R2
T
A
P
B
capacity:
0.5 Litri
precharge
pressure
50 bar
capacity:
0.5 Litri
precharge
pressure
40 bar
Pressure
switch
activating
pressure
70 bar
Pressure
switch
activating
pressure
2-10 bar
Hydraulically powered
service/emergency brakes
pedal pump
Hydrostatic transmission
high pressure test port
Boom functions hydraulic
circuit test port
T2
Hydrostatic transmission motor
max displacement: 80 cc rev
/
T
P
A
B
Mechanical gear speed
selector valve
4 ways/3 positions
Emergency electrical
motor driven pump set
3.2 cc/rev (option)
Mechanical gear speed
selector actuator
Boom functions pump
with integrated priority valve
displacement: 43 cc/rev
Mechanical gear (2 speeds)
E
200 bar
270 bar
1
0
2
E
1
0
2
1
0
2
E
290 bar
290 bar
1
0
2
T1
A
A
A
A
B
B
B
B
P
P
T
T
LS
Pp
Tp
Tp
FLT
Pp
RPM
G1
Ev13
MPR
A1
B1
B3
A3
B2
A2
T
P
210 bar
1
1
1
0
0
0
2
2
2
150 bar
X1
G
Forks attachment
quick coupling cylinder
Stabilizers/chassis levelling
main valve
Boom functions
main valve
Heat exchanger
Hydrostatic transmission
boost pressure test port
HYDRAULIC CIRCUIT
COLORS LEGENDA
Boom
teering, brakes, stabilizers
and chassis levelling functions lines
/ s
Low pressure and transmission
charge pressure lines
Hydrostatic transmission
high pressure lines
Hydrostatic transmission and
boom functions valve piloting lines
Boom
teering, brakes, stabilizers,
chassis levelling pump pressure lines
/ s
Boom
teering, auxiliary and
transmission pumps suction lines
/ s
Tank lines
M
Ev1
Ev2
Ev3
Ev4
Ev5
Ev6
Ev7
Ev8
Ev9
Ev10
Ev11
Ev12
Pv1
Pv2
Pv3
Pv4
A
M1
X1
X2
T
G
B
U
Flushing valve
Return filter
with suction line
pressurized at 0,5 bar
Check valve
cracking pressure:
8 bar
Auxiliaries functions
hydraulic circuit test port
Tp4
Rear axle pivoting
lockout valve
2 ways / 2 positions
Rear axle pivoting
lockout cylinder
Ev14
Ev15