R210W-5 液压原理图

28

22

29

30

31

24

dr3

4

17 18 19 20

3

23

23

23

23

dr2

A Mu B

41

15

XAs

47

XBs

Sh

pg

16

13 14

1 Main pump

2 Main control valve

3 Swing motor

4 Travel motor

5 RCV lever(LH)

6 RCV lever(RH)

7 Accelerator pedal

8 Dozer and outrigger lever 9 6 solenoid valve 10 1 solenoid valve 11 Check valve 12 Check valve

13 Boom cylinder(RH) 14 Boom cylinder(LH) 15 Arm cylinder 16 Bucket cylinder

17 Outrigger cylinder(LH)

25

27

TCV

T/M1

T/M2

BSV

21

49

XAa1 PaL

XBa1

26

XAaS

XBa2

T2

Aa1

Ba1

PaL

T1 fl fr T3

2

XAa2

Ak1 18 Outrigger cylinder(RH) 19 Dozer cylinder(LH) 20 Dozer cylinder(RH)

21 Transmission control valve 22 Oscillating cylinder

23 Pilot control valve(Double) 24 Locking valve 25 Steering valve 52

Br/Fr

XAb2

As Psp

XBs

XAk

Bk1

XBk

Ab1

XAb2 26 Brake valve 27 Accumulator 28 Accumulator 29 Transmission

T4

P

T

dr7 dr6

46

7 8 5

6

Br/Rr

Bs

XAs

Atl XBtl Btl

XAtl

Bb1 XAb

XBb

XA0

XB0

Pi

32 30 Front axle 31 Rear axle 32 Selector valve 33 Accumulator 34 Bypass valve TRAVEL

DOZER

OUTRIGGER

SWING

ARM

BOOM

BUCKET

R1

Atr

Btr

XBtr

XAtr

dr5

35 Return filter 36 Air breather 37 Hydraulic tank 38 Strainer XAtr XBtr

XAs

XBs XAa1 XBa1

XAb

XBb XAk

XBk

pz

P1

AUTO DECEL

53

PG

P2

R2

39 Line filter 40 Spin filter 41 Turning joint 42 Pressure switch

Psp

51

P

10

Pi

XAtl XBtl

XAa2 Pm1

pm2

Pz

33

48 9 PG

39

pg

48

PUMP1

11 50

12

43 Pressure switch 44 Pressure switch 45 Pressure switch 46 Gear pump 47 Shuttle valve dr4 XAaS

AUTO

dr1~dr7

T1~T5

36

pm1 48 Last guard filter 49 Relief valve T5

PUMP1 PUMP2 SUC. T/M1 T/M2 Br/Fr Br/Rr DECEL

TVC BSV

fl

54 42

45 43 44

55

37

34 35

M

50 Oil cooler

51 Reducing valve 52 Brake supply valve S1 S2

S3 S4 S5 G1 G2 G3

G4 G5 40

38

dr1

53 Last guard filter 54 Pressure switch 55 Gauge block

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