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Hydraulic System EC210B-09-01

Full Hydraulic Circuit(1/2) EC210B-09-02

Full Hydraulic Circuit(2/2) EC210B-09-03

Brief Hydraulic Circuit(1/2) EC210B-09-04

Brief Hydraulic Circuit(2/2) EC210B-09-05

09HYDRAULIC SYSTEM GENERAL

http://ec210b-main.pdf/http://ec210b-main.pdf/http://ec210b-main.pdf/

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Volvo Construction EquipmentKorea Ltd.

EC210B-09-01

Hydraulic System

P1 P2 P3

Boom

Bucket

Travel

Option

Swing

Arm

Travel

Swing motor

Swivel joint

Travel motor

Gear pump

Main pump

Engine

Travel motor

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Volvo Construction EquipmentKorea Ltd.

EC210B-09-02

Full Hydraulic Circuit(1/2)

S01073B

Left Right

B(back) A(back)

A(for) B(for)

(2-BL4)(2-AL4)

(3-Dr)(11-A3)

(2-AR3)

(2-BR3)

C E G B F D

pw

P3P2P2

PiPi

P1P1

BR1

Dr(21-Td7)

T(31-T)(48-Pi)

(16-BD1)

3Pi(2-ar1)

(2-ar1)or (63-P)

355k

P3

TT

(21-Td4)

(3-Mu)Rs1(16-BD1) or (63-B)

ar1(2-3Pi)(48-Pi)

(16-BU1)br1

(2-ar1) B

A P

(16-BI1)ar2

(16-BO1)br2

AR1

A

B

Pi

B(t5)

BR2

AR2

(15-3)ar3

(15-4)br3

(17-D)BR3(17-F)AR3

(12-A3)a

or(43-A)X1 2P

Grapple

(1-Dr)

(3-Dr)In

Out

Td1

(2-Fl)

Pi1

(45-A)ADD X1

(53-R)t4

t1(36-T)

t2(55-T)

t3(47-out)

t5(62-t)

Td3Td6

(2-dr5)

(33'-T)

T(40-T)

Td8Td7Td5

(11-T)

(49-T1)(31-T1)Td2

(49-T2)

(43-T)(2-dr1)

(46-dr)

(62-Dr)

(2-dr3)(2-dr4)

(48-T)Td4

Oil leak4.5k 3k

(2-Pg2)

(21-Td1)AC

A2(2-Py)A3(17-B)A1

PS

S1S3

P1(45-P)

(33'-P)

PS1

(45-T)

G

S2(3-PG)

T

A3

a3

a1 a2

a4

Pi2(2-Fr)

Dr(27-in)

40k

Engine

Out(55-P) B3

(31-T6)T

P1

(31-P6)

(36-PS)

P2 P3

A3A2

(33-P) (2-a)

X1 2P(43-A)(2-b)(59-6)A1

P2(2-ar3)

P(31-P4)

(2-al4) (2-br3)T(31-T4)

(2-bl4)2 1 4 3

(3-SH) (2-al3)AI1

(2-bl3)AO1(2-bl1)SR1

(2-al1)SL1

(2-ar2)BI1

(2-br2)BO1

(2-ar1)BD1

(2-br1)BU1

AOSR

AM

SL

BI

BO

BD

BU

BU2

(2-Px1)

4

32

1(33-Pi)

AI2AI

SW

(41-T)(43'-T)

(14-T)(52-T)(15-T)

(42-T)

T6P6(12-P1)(12-T)

(33-T)

3

(2-Pa)2

1

T1(21-Td2)P1

(41-P)(43'-P)

P2

P4

(14-P)P3

(13-P)P5

(52-P)(15-P)

T(33-T) A

T2

T4

T3P

(53-C)

(63-P),(3-PG)

T5(13-T) Pi

P2P1

(21-Td3) (21-Td3)

(2-4Pi)

dr2(2-dr4)

BL3

Pi

365k

(58-4)4Pi

T1 T2

Pd(33'-A)

pa(28-3)

(16-AI1)al3bl3(16-AO1)

AL3

al4(15-1)bl4(15-2)

BL4(17-C)AL4(17-E)

b(12-A2)

bl1(16-SR1)

BL1

AL1PR1(40-C)al2(59-2)

bl2(59-1)

BL2AL2

Mu(2-Rs1)

B

270k

A

(16-SL1)al1

39-1

SH(58-2)

PG

(9-S2)

(51-P)

(17-G)

(27-in) Dr

Py

(11-A2)

(2-Ps)

(12-A2)

(31-T6)(51-T)

TP

A

(58-3)Pi

Right

ST9ST7

1 3 2 4

(31-T3)T

P(31-P3)

Left

ST9ST7

1 3 2 4

(31-T5)TP(31-P5)

Px2 dr1

(21-Td5) Pi

(2-Po)

Pg1 Px1 Fl(1-Pi1)

(53-pi)

(2-Ps)

(16-Bu2)

P1 P2

P1 P2 P3

P4

Psv

R Fr(1-Pi2)

(21-Td7)

(53-P)PR2(2-Pi)Po

Pi(43-A)

B C(2-PR1)

A

Dr(21-Td1)

(2-Px1)

(2-Py)Ps

dr3(21-Td6)

(2-dr2)

PR(9-PS1) Pg2

(36-P3)Y

Pb dr5

(21-Td8)

PL

13

6

49

51

28

58

31

29

34

11 12

29 29 2929

10

9

8

22

23

24

25 37

21

1920

18

26

27

301

2

80

79

77

78

7

4850

5

17

61 62

63

72

40

38

66

67

67

6868

65

39

69

70

71

4 4

33

3

64

32

29

14

29

29

15

16

29

dr4

(31-P4)(31-T4)

b

C(51-Pi)P(2-PR2)

a R(return pipe t4)

pi(2-Pg1)

1 T P 2

2 Piece boom X3 (Rotator)

Pattern changer

X1 (Hammer & shear)

150k

180k

Return pipe t2)T

(37-out)P

G Dr

B

A

(12-A3)

(2-a)(40-Pi)

T(21-Td5)

P

3 5 4

62 1

(2-bl2)(2-al2)(12-A1)

A

T

(11-T)

(9-S3) (1-Pi1)

AP

2PT(31-T3)

1

4 5

(46-Pi)(2-Pd)

21

A B

b a

T(31-T2)(31-P2)P

Hammer Shear

Tilting Pi(60-3)

(2-BL2)

(2-AL2)

dr(21-Td6)

In

Out

(Return pipe t3)

A

TB

54 53 52

57

56 55

46

29

6033'

41

59

29

42

S

B

(16-BD) 1(16-AO) 2(16-BU) 3(16-A1) 4

A (14-2)B (13-2)C (14-4)D (13-4)

76

44

29

75

74

45

43

P(31-P2)

T(31-T2)

A

29

43'

47

a

b

Thumb bucket pilot

Pi3

A

P T(9-S3) (21-Td8)

Quickfit

PS(12-P1) P3(2-Y)

12MPa

T(Return pipe t1)A B

A

B

36

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Volvo Construction EquipmentKorea Ltd.

EC210B-09-03

Full Hydraulic Circuit(2/2)

1

2

3

4

56

7

8

9

10

11

12

1314

15

16

17

18

19

20

21

22

23

24

25

Main pump

Main control valve

Swing motor & gear box

Travel motor & gear box

Boom cylinderArm cylinder

Bucket cylinder

Servo hydraulic filter

Accumulator block

Accumulator

Solenoid valve

solenoid valve

Remote control valve - leftRemote control valve - right

Remote control valve - travel

Shuttle valve block

Turning joint

Hydraulic oil cooler

Check valve(3k)

Check valve(4.5k)

Hydraulic oil tank

Return filter element

Bypass valve

Bypass strainer

Strainer

26

27

28

29

3031

32

33

34

36

37

38

3940

41

42

43

43'

44

45

46

47

48

49

50

Air breather

Drain filter

Valve block

Filter connector

Filter connectorValve block

Swing ring gear

Pilot selector valve

Pressure switch

Quickfit valve

Rotator pump

Cap(orifice)

Cap(check valve)Option conflux selector valve

Solenoid valve

Remote control pedal for X1

Solenoid valve

Sol. Thumb bucket

Hammer pressure switch

Flow control valve

3 way selector valve for X1

Return filter

Boom line rupture valve

Arm line rupture valve

Overload pressure switch

51

52

53

54

5556

57

58

59

60

61

62

6364

65

66

67

68

69

70

71

72

73

74

75

Adj. boom selector valve

Adj. boom RCV

Adj. boom valve

2nd boom cylinder

Rotator valveRotator solenoid valve

Check valve for rotator

Block

Shuttle valve block(A) for X1

Shuttle valve block(B) for X1

Arm conflux valve

Logic valve

Boom holding valveMain relief valve

Orifice

Straight travel valve

Center bypass valve

Flow sensing valve

Port relief valve

Arm regenerating valve

Arm spool

Boom holding valve

Arm holding valve

Stop valve

Tilting line

76

77

78

79

80

Pattern changer

Boom floating v/v

Boom floating sol.

3-way v/v(grapple)

3-way v/v(grapple)

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Volvo Construction EquipmentKorea Ltd.

EC210B-09-04

Brief Hydraulic Circuit(1/2)

BR1

(2-ar1)3Pi

(3-Mu)Rs1

(16-BD1)ar1

(2-3Pi)

(16-BU1)br1

(16-BI1) ar2(16-BO1)

br2

AR1

BR2

AR2

(15-3)ar3

(15-4)br3

BR3

AR3

(12-A3)

3

(2-Pa)

(16-SW)2

1

(2-dr4)dr2

BL3

(58-4)4Pi

(28-3)pa

(16-AI1)al3

(16-AO1)bl3

AL3

(15-1)al4

(15-2)bl4

BL4

AL4(12-A2)

b

(16-SR1)bl1

BL1

AL1

al2

bl2

BL2

AL2

BA

(16-SL1)al1

Py

(2-Ps) (11-A2)

(12-A2)

(31-T6)

TP

A

(58-3)Pi

Px2

(21-Td5)

dr1

(2-Po)

Pi Pg1 Px1(1-Pi1)Fl

(9-S1) (2-Ps)

(16-BU2)

R

(1-Pi2)

Fr

(21-Td7)(2-Pi)

Po

(2-Px1) (2-Py)

Ps(21-Td6)

dr3

(2-dr2)

PR

(9-PS1)

Pg2

Y

Pb dr5

(21-Td8)

PL

dr4

a

63

5

2

72

7

67

68

66

61 62

65

64

6970

71

67

68

33

6

28

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Volvo Construction EquipmentKorea Ltd.

EC210B-09-05

Brief Hydraulic Circuit(2/2)

(2-Pg2)

(2-Pg1)

(21-Td1)AC

(2-Py)

A2

(17-B)

A3A1

PS

S1 S3

P1

(45-P)

PS1

G

S2(3-PG)

T

(A3)

(31-T6) T

P1 P2 P3

A3A2

(33-P)

(2-a)(2-b)

A1

P2

(2-ar3)

(31-P4)(2-al4)

(2-br3)T P

(31-T4)(2-bl4)2 1 4 3

(3-SH)

(2-al3) AI1

(2-bl3) AO1

(2-bl1) SR1

(2-al1) SL1

(2-ar2) BI1

(2-br2) BO1

(2-ar1) BD1

(2-br1)

BU1

AO

SR

AM

SL

BI

BO

BD

BU

BU2

(2-Px1)

41

2

3(33-Pi)

AI2AI

SW

(14-T)

(15-T)

T6P6

(12-T)

3

(2-Pa)2

1

T1P1

P2

P4

(14-P)

(15-P)

P3

(13-P)P5

(Px1)

T2

T4

T3

(13-T)T5

(2-4pi)

RH

1

3

2

4

(31-T3)

T

P(31-P3)

P

LH

1

3

2

4

(31-T5)T

(31-P5)

P

13

28

58

11

12

10

9

14

15

16

31

34