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320 B Hydraulic
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320 B Hydraulic
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Rudolph Prieto M
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320 Excavator Elecrical Sistem
Description complète
320 Excavator Elecrical Sistem
SENR9249-04 July 2002
19
A
R
R A 0 0 L E L H I P 9 2 R 5 E 0 T 4 5 A 1 C N / P
N / S
B A
18
B
320B Excavators Hydraulic System 52
53
54
55
12
44
46
47
48 16
17
18
320B:
320B N:
320B L:
3MR1-UP
4NR1-UP
4MR1-UP
5BR1-UP
6CR1-UP
9KR1-UP
5CS1-UP
1CS1-UP
5GW1-UP
4XW1-UP
2WZ1-UP
50 49
38 39
© 2002Caterpillar All Rights Reserved 14
Main Control Valve
15
: 320B
Note: 27
31
320B L:
26
3MR1-UP
4MR1-UP 2WZ1-UP
34
P
25
T-OUT
M1
P1
J
P2
M2 Psg
24
DR5
Ps Pn1
23
Pn2
DR6
35
Pm
22 G2
D2
S1
G1
33 DR4
ATTACHMENTCOMPONENTS
32
Pilot Manifold
Item No.
32
30
Description FrontPump
33
RearPump
34
PressureSwitch
35
PilotPump
f05847
Printed in U.S.A.
Hydraulic Schematic 115-9033 115-9034
1
2
3
TRAVEL MOTOR (LEFT)
4
TRAVEL MOTOR (RIGHT)
MAINCONNECTORLINE PILOTLINE
MOTOR
DRAINLINE
37
35
28
15
34 36 41
PG DR Pp3 Pp3
MU
7
T
5
T 6
4
7
8
8
A
9 B
B
B
1 9
A
11
A 11
13
14
16
15
17
AP2
50 BPi
ADr APi
BL4
BR3
AT
aR3 dR4
PSL AR3
R1
R3
BR2
BR1 aR2
AR2
(L)
(R)
(B)
aL2 46
AR1 aR1
PSW
PTA
aL1
(F)
BL1
AL1
(B)
(F)
BL2 AL2
aL3 BL3
BP2
2 5
33
32
30
3 6
BDr
aL4 AL3
BP3
BP 1
B T
aL5
AL4 R2
53
AP1
49
R4
55
44
54
52
STICK(2)
18
HL 48
R3
AR4 51
HR
47 BOOM(2) Y
aR4
bR3
TRAVEL(R)
TRAVEL(L) PiL
bR2 bR1
dSW
DR
BOOM(1)
SWING STICK (1) 19
dST1
PR
PL
PP
bL1
ATCH
BUCKET
b L2
bL3
STANDARDCOMPON ENTS Item No.
X
1
PAT
PiB
bL4
dL5
FlowControlValve
29
HydraulicActivation ControlValve
3
TravelMotor(Right)
30
PilotOil Manifold
Stick Cylinder
31 32
Travel Brake Valve (Right)
33
LowerPump
7
BucketCylinder
34
Pressure Switch
Boom Cylinder
35
PilotPump
Solenoid Valve (Swing Parking Brake)
36
Case Drian Filter
9 JLP
JLT
10 11
STICK JL3 JL1 TLA2 TLA1
23
SWING JL4
JL2
TRA2
22
i P J
5 i P
8 i P
TRA1
25
24
26
27
JRP
JRT
R2
(PUMP) TRAVEL(L)
X1 BUCKET
TRAVEL(R)
JR4 (LEVELING)
JR2
BOOM JR3
JR1
M3
(TRAVEL)
X3 A1
(RELIEF) PAC
32 SP
SB5SB4 SB3 SB2 ST SB1
29
J
M1
34
S
28 30
SA5 SA4
SA3
SA2
1 2 3 4 5 6 R R R R R R D D D D D D
3 2 i i P P
1 i P
T U N I O T P
G P
A2
OilCooler
38
Check Valve
TravelControlValve(Right)
39
BypassCheckValve
BoomDriftReductionValve
40
Return Filter
Stick DriftReduction Valve
41
HydraulicTank
MainControlValve
42
PilotFilter
16
Implement/Swing Pressure Switch
44
17
TravelPressureSwitch
46
18
Main Relief Valve
47
Boom IIControlValve
19
Boom Raise Pressure Switch
48
Line Relief Valve (BucketCylinderHeadEnd)
20
PilotControlValve(Travel)
49
Line Relief Valve (Stick CylinderHeadEnd)
21
PilotControlValve (Swing/Stick) ck)
50
Line Relief Valve (Boom CylinderHeadEnd)
22
SolenoidValve(FineControl)
51
23
SolenoidValve(TravelSpeed)
52
24
SolenoidValve(Swing Priority)
53
Boom IControlValve
25
ProportionalReducing Valve(PowerShift)
54
BucketControlValve
55
AttachmentControlValve
26
33
31
37
13
15
(SWING)
TravelControlValve(Left) Swivel
12
14
A S P
U E P
V / C
PilotReliefValve UpperPump
Travel Brake Valve (Left)
6
8
21
TP
Component
28
TravelMotor(Left)
4
TT
Item No.
2
5
20
Component Swing Motor
27
Accumulator
StraightTravelControlValve LeftTravelControlValve
Line Relief Valve (BucketCylinderRodEnd) Stick IIControlValve
PilotControlValve (Bucket/Boom) /Boom)
M2 A3
SA1
35 37 X2
R1
36 41
38 39
f05857
40
R1
42
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