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Sơ đồ thủy lực máy xúc đào CATERPILLAR 320c

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© 2003 Caterpillar

RENR3613-01 January 2003

320C U Excavator Hydraulic System

APA1-UP

CLM1-UP ALX1-UP CLZ1-UP

FBB1-UP GAB1-UP MAC1-UP PAC1-UP

DR2

T-OUT(2)

PSA1

DR1

PSA2

P-IN

Pi1

P2

PAC

P1

DR6

T-OUT(1)

DR5

Pi2

DR4

X

TANK3

AL4 AL3

AL2 AL1 BL4 BL3 BL2 BL1

28 27 26 25 24 35

23

22 21 20 18

47

46 45

44

Main Conrol Valve

Pilot Oil Manifold

13

43

Trang 2

IN T

OUT

BDr

Pi2

Pi Dr1

M2

A1

A2

NO3

PIN

PAC Pi1

P2

DR6 DR5

PSA1

DR4 DR3 DR2 DR1

B A

T

T

S1 S3

Pn1

TOUT2 TOUT1

RR

E F

FR

PsM2

Ps1 PsM1

T

P1 P2

B2 A2 B1

C

B A

U

Pn2

B8 B7 B6

C B5 B4 B3 B2 B1

A8 A7 A6 A5 A4 A3 A2 A1

SDr

ST SP1 SP2

AR4

R1 BR4

AR3 BR3 AR2

BR2

SPi

SP3

AR1 BR1

BR5

PB6

DB6 PB2

PB1

Di4 Pi4 AL1

bL3

AR5

Pm

G2

G1

AL4

DB1

BL1

DB2

AL2

A B

PB5

A1

BL2

BPi

AL3 R2

G4 BP3

G3

BP2

bR4

aR5 Pi1

aR4

bR5

HR Di1

aR3

bR3

aR2

bR2

aR1

bR1

aL1

bL1

Dr2

HL

Ps2

aL2

bL2

aL4

Di2 DB5

Pp3

R3

Pp3

DR

BL3

aL3

MU DR

A B

PG

PILOT LINE DRAIN LINE

Hydraulic Schematic

MAIN CONNECTOR LINE 171-0097

Item

Component

STANDARD COMPONENTS

Component

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29

35 36 37 38 39 40 41

33 34

45 46 47 48

42 44 43

50 49 51

54 55 56 57

52 53

58

1

4

10

11

14

15

16

17

23

31

32 33

34

35

36 37

38 39 40

41

42

43 44 45

46

47

48

49

50

51

30 31 32

59 60 61 62

Stick Cylinder Swing Motor Travel Motor (Left) Travel Motor (Right) Anti-Reaction Valve (Swing Motor) Travel Brake Valve (Left)

Travel Brake Valve (Right) Bucket Cylinder

Boom Cylinders Swivel

Pilot Control Valve (Travel) Stick Drift Reduction Valve Main Control Valve Boom Drift Reduction Valve Pressure Switch

Pressure Switch Negavtive Flow Control Relief Valve Boom II Control Valve

Stick Regeneration Valve Stick I Control Valve Swing Control Valve Left Travel Control Valve Straight Travel Control Solenoid Right Travel Control Valve Attachment Control Valve Bucket Control Valve Boom I Control Valve Stick II Control Valve Pilot Control Valve (Swing and Stick) Pilot Control Valve (Boom and Bucket) Stick Unloading Valve

Line Relief Valve (Stick Cylinder Head End)

Variable Swing Priority Valve Straight Travel Control Valve Main Relief Valve

Line Relief Valve (Bucket Cylinder Rod End) Line Relief Valve (Bucket Cylinder Head End) Boom Regeneration Valve

Line Relief Valve (Boom Cylinder Rod End) Negative Flow Control Relief Valve Logic Valve

Pressure Switch Pilot Oil Manifold Travel Speed Solenoid Valve Swing Parking Brake Solenoid Valve Valve (Hydraulic Activation) Solenoid Valve (Hydraulic Actation) Accumulator

Reducing Valve (Boom/Swing Priority Mode) Pressure Sensor (Left Pump)

Bypass Check Valve Slow Return Check Valve Oil Cooler

Hydraulic Tank Return Filter Case Drain Filter Pilot Relief Valve Pilot Filter Left Pump Right Pump Pilot Pump Pressure Sensor (Right Pump)

52

53

54

55

56 57

58

59

60

61

62

1

8

56 54

53

61

60 59 58

55 57

12 13 14 17 18 19 20

21 22 23 24 25 26 27

28 31 32 33 34 35

36 37 38 39 40

6 3

7 4

43 44 45 46 47

9

2 10

g00948176

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