Part No. 57.4400.9203 GTH-4016SR • GTH-4018SR
7
March 2010
Section 2 • Specification
SPECIFICATION
REV A
GTH-4018SR Hydraulic Schematic
M
X2
MH
S
A
T1
PS
Fa
Fa1
Fe
MB
T2
R
B
MA
FS
Diesel engine
Auxiliary circuit max pressure relief valve
Hydrostatic transmission pump
max displacement: 71 cc rev
/
Auxiliary gear pump
brakes circuit
displacement: 14 cc/rev
Suction screen
Anticavitation valve
cracking pressure
5 bar
Check valve
cracking pressure:
2.5 bar
Check valve
cracking pressure:
0.5 bar (option)
Oil tank
capacity
220 liters
Telescopic boom
lift cylinder
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
25 bar
430 bar
450 bar
450 bar
Tp3
Tp7
Tp4
Tp5
Tp2
Tp1
capacity:
0.5 Litri
precharge
pressure
35 bar
Hydrostatic transmission
high pressure test port
Telescopic boom,
turret and
undercarriage
functions hydraulic
circuit test port
Telescopic boom, turret and
undercarriage
functions main valve
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
2.6 cc/rev (option)
Mechanical gear speed
selector actuator
Boom functions gear pump
displacement: 43 cc/rev
Mechanical gear (2 speeds)
X1
G
Forks attachment
quick coupling cylinder
(optional)
Heat exchanger
Hydrostatic transmission
boost pressure test port
M
C
Ev1
Ev2
Ev5
Ev6
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
Shutoff valve
Shutoff valve
280 bar
320 bar
320 bar
A1
Pp
LS1
LS2
T
P
A2
A3
A4
A5
A6
B1
B2
B3
B4
B5
B6
Forks tilt cylinder
Forks self-levelling
articulation slave
cylinder
Second section boom
telescoping cylinder
Double overcenter safety valve
piloting ratio: 4/1
cracking pressure: 350 bar
Quick coupling
hydraulic ports
Hydraulically piloted
double check valve
piloting ratio: 4 1
/
TURRET -UNDERCARRIAGE BOUNDAR
Y
TURRET -UNDERCARRIAGE BOUNDAR
Y
N
R
F
P
B
N’
R1
T1
T1’
Capacity:
0.5 litres
precharge
pressure
50 bar
Capacity:
1.5 litres
precharge
pressure
35 bar
Pressure
switch
activating
pressure
70 bar
Pressure
switch
activating
pressure
2-10 bar
Hydraulically powered
service/emergency brakes
pedal pump
Air condition compressor
hydraulic motor
displacement 16 cc/rev
(optional)
Tank lines collector
150 bar
Pressure
switch
activating
pressure
10
bar
-20
R
T
N
30 bar
Parking brake
handle selector
valve
190 bar
260 bar
L
S
L
S
L
R
T
P
Steering rotating
actuator
displacement:
200 cc rev
/
Priority valve
load sensing type
T
P
A
B
C
T
P
Differential lock
selector valve
3 ways / 2 positions
Front axle
steering cylinder
Rear axle pivoting
cylinder (right)
Rear axle pivoting
cylinder (left)
Rear axle
steering cylinder
Air bleeding
valve
Air bleeding
valve
Front axle
Rear axle
Rotating joint
Rotating joint
Rotating joint
Steering modes
selector valve
4 ways / 3 positions
Rear axle pivoting
lockout valves
2 ways/2 positions
Outriggers
lockout valve
2 ways/2 positions
Outriggers telescope
lockout cylinder
Outriggers retraction line
max pressure relief valve
Outriggers retraction
line test port
Outriggers telescope
lockout cylinder
Rear axle lockout cylinders control valve
orifice dia.: 2 mm - cracking pressure: 0.5 bar
HYDRAULIC CIRCUIT
COLORS LEGENDA
Functions lines
Low pressure lines
Load sensing and piloting lines
Open circuits pressure lines
Closed circuits high pressure lines
Suction lines
Tank lines
180 bar
100 bar
Unlocking
pressure
15/50 bar
Turret rotation
hydraulic motor
Turret rotation hydraulic motor
double overcenter safety valve
piloting ratio: 3/1
cracking pressure: 150 bar
T
P
A
A
A
A
B
B
B
B
Outriggers selector
valves block
Auxiliary circuit
pressure test port
Front right
outrigger cylinder
Rear right outrigger cylinder
Front left
outrigger cylinder
Rear left outrigger cylinder
Hydraulically piloted
double check valve
piloting ratio: 4 1
/
Hydraulically piloted
double check valve
piloting ratio: 4 1
/
Hydraulically piloted
double check valve
piloting ratio: 4 1
/
Hydraulically piloted
double check valve
piloting ratio: 4 1
/
Boom lift
Forks tilt
Telescoping
Attachments
Turret
Stabilizers
V2
V1
C1
C2
C3
T
Pressure
switch
activating
pressure
5 bar
Rear right outrigger cylinder
Rear left outrigger cylinder
Tp6
Emergency line max pressure
relief valve (optional)
Emergency line
test port (optional)
150 bar
Test port
T
P
PR
Pressure reducing valve
setting pressure: 10 bar
39
68
48
49
56
57
58
54
55
53
52
44
74
50
51
47
46
45
33
35
32
38
34
31
40
42
41
74
73
72
62
60
12
11
8
30
29
64
6
15
61
63
67
65
66
5
17
10
19
9
18
3
7
73
59
69
43
36
20
22
37
28
23
21
69
26
25
27
27
24
16
1
14
4
2
13