Gth-3512 Hydraulic Scheme - Genie GTH-3512 Operator's Manual

Handler with telescopic boom GTH-3512
TABLES AND DOCUMENTS ENCLOSED
G-4

GTH-3512 HYDRAULIC SCHEME

Page
Document 57.0008.7200 - 05/2007
Accumulator
capacity:
0.5 Litri
precharge
Pressure switch pressure
50 bar
activating pressure 70 bar
Pressure switch
activating pressure 2-10 bar
F R
R2 R1
N'
T1'
Front axle
T1
B
T2'
P
T2
Rear axle
Rear axle
N
steering cylinder
Servo-assisted
braking system
B A
Steering modes T P
selector valve
4 ways / 3 positions
Anti-shock
Front axle
valves
steering cylinder
cracking
pressure
200 bar
R L
Steering rotating
actuator
L
S
Max relief valve
P T
cracking
pressure
140 bar
3 1
Check valve
2
cracking pressure:
Selection
2.5 bar
valve
Diesel engine
M
Function pump
with integrated
priority valve
Hydrostatic transmission pump
max displacement: 56 cc/rev
Shutoff valve
Suction
filter
G - 21
Quick coupling
hydraulic ports (optional)
Forks attachment
quick coupling cylinder
(optional)
Hydraulically piloted
Double overcenter double check valve
safety valve piloting ratio: 4:1
piloting ratio: 4.2:1 (optional)
cracking pressure: 350 bar
Single overcenter safety valve
piloting ratio: 4:1
cracking pressure: 350 bar
Forks tilt
Double overcenter
cylinder
safety valve
piloting ratio: 4:1
cracking pressure: 350 bar
Third boom element
telescoping cylinder
Forks levelling
slave cylinder
Double overcenter
safety valve
piloting ratio: 11:1
cracking pressure:
350 bar
Anticavitation valve
Second boom element
cracking pressure
telescoping cylinder
5 bar
Single overcenter
safety valve
piloting ratio: 4:1
cracking pressure: 350 bar
Boom lift cylinder
Hydrostatic transmission
high pressure test port
TP
Ev1 Ev2
R T T P F F F M
1 2
S a a1 e
450 bar
450 bar 430 bar
25 bar
X X G MH S F
2 1 S
Suction
filter
Check valve
TP
3
cracking pressure: 0.5 bar
Hydrostatic transmission
boost pressure test port
Distributor with
mechanical control
Double overcenter T
Right stabilizer cylinder
safety valve
piloting ratio: 4:1
cracking pressure: 350 bar
B
5
Left stabilizer cylinder
A
5
B
4
A
4
B
3
A
3
B
Double overcenter
2
safety valve
piloting ratio: 4:1 A
2
cracking pressure: 350 bar
B
1
A
1
T
A2 B2
280 bar
P
B1 Safety solenoid
175 bar
T
TP
Boom functions
1
A1
295 bar 295 bar hydraulic circuit test port
6-way / 2-position
electro-switch
A B
2
Flushing valve
B Hydrostatic
transmission
motor
T P
B X X
B
U
2 1
B A
Mechanical gear speed
selector valve
4 ways/3 positions
Mechanical gear speed
selector actuator
A
G T
A
M
Mechanical gear
A
(2 speeds)
Shutoff valve
valve
M
1
Oil tank
capacity
90 liters
Heat Check valve
exchanger cracking pressure: 2.5 bar
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