CAT Diagrama Hidraaulico 320D

INTERACTIVE SCHEMATIC Bookmarks

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Information Component Table Tap Table Fluid Power Symbols Electrical Symbols

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RENR7296-06 September 2011

320D and 320D L Excavator Hydraulic System 320D: JPD1-UP A6F1-UP FAL1-UP KLM1-UP PCM1-UP KHN1-UP BZP1-UP CXY1-UP JFZ1-UP JGZ1-UP KTF1-UP

320D L: MDE1-UP A8F1-UP A9F1-UP KGF1-UP MGG1-UP TDH1-UP DHK1-UP GDP1-UP

© 2011 Caterpillar, All Rights Reserved

Printed in U.S.A.

COMPONENT LOCATION Part Number

Machine Location

Schematic Location

Accumulator GP

164-6981

1

A-4

Cylinder GP - Boom

NOTE A

2

E-2

Cylinder GP - Bucket

NOTE A

3

E-2

Cylinder GP - Stick

NOTE A

4

E-7

Filter GP - Pilot (Hydraulic Oil)

158-8987

5

A-4

Filter GP - Oil (Hydraulic Return)

188-4140

6

A-6

Filter GP - Oil (Hydraulic, Case Drain)

126-2075

7

A-6

Manifold GP - Control (Pilot Oil)

215-5037

8

A-5

Motor GP - Swing

158-8986

9

E-5

Motor GP - Travel (Left)

209-5992

10

E-5

Motor GP - Travel (Right)

209-5992

11

E-4

Pump GP - Piston (Main)

272-6955

12

A-2

Swivel GP

234-4440

13

D-4

Valve GP - Check (Oil Cooler Bypass)

201-9329

14

A-7

Valve GP - Load Control (Boom)

255-5683

15

C-2

Valve GP - Load Control (Stick)

255-5680

16

C-5

Valve GP - Main Control

259-7464

17

C-2

Valve GP - Pilot (Joystick, LH)

270-5951

18

C-7

Valve GP - Pilot (Joystick, RH)

270-5952

19

C-6

Valve GP - Pilot (Travel)

270-5947

20

D-7

Valve GP - Pressure Reducing (Boom, Swing Priority)

232-4102

21

A-4

Valve GP - Shuttle 1

185-0462

22

B-7

Valve GP - Shuttle 2

259-7732

23

B-3

Valve GP - Swing Cushion

158-9085

24

D-5

Valve GP - Travel Counterbalance (Left)

137-3718

25

D-5

Valve GP - Travel Counterbalance (Right)

137-3718

26

D-4

Description

Note A: Refer to Parts Manual for your specific machine.

TAP LOCATION Tap Number

Description

Schematic Location

AA

Pilot Filter Pressure Test Port

A-4

BB

Idler Pump Pressure Test Port

B-3

CC

Drive Pump Pressure Test Port

A-3

DD

Power Shift Pressure Test Port

A-2

SOS

Hydraulic Oil Sampling Port

A-3

FLUID POWER SYMBOLS BASIC COMPONENT SYMBOLS

MAIN AUX.

PUMP or MOTOR

SPRING (ADJUSTABLE)

VARIABILITY

CONTROL VALVES

SPRING

FLUID CONDITIONER

PRESSURE COMPENSATION

LINE RESTRICTION (VARIABLE)

TWO POSITION

2-SECTION PUMP

HYDRAULIC PNEUMATIC ENERGY TRIANGLES

ATTACHMENT

LINE RESTRICTION

VALVE PORTS

TWO-WAY

THREE POSITION

PUMP: VARIABLE and PRESSURE COMPENSATED

VARIABLE and PRESSURE COMPENSATED

VALVES

VALVE ENVELOPES

ONE POSITION

LINE RESTRICTION (FIXED)

RESTRICTION

FOUR-WAY

THREE-WAY

CONTROL VALVES

CHECK VALVES

AB

AB

P T NORMAL POSITION

P T SHIFTED POSITION

INFINITE POSITION

SHUTTLE

SPRING LOADED

BASIC SYMBOL

PILOT CONTROLLED

FLUID STORAGE RESERVOIRS

VENTED

RETURN ABOVE FLUID LEVEL

PRESSURIZED

RETURN BELOW FLUID LEVEL

MEASUREMENT

PRESSURE

TEMPERATURE

ROTATING SHAFTS

FLOW

UNIDIRECTIONAL

BIDIRECTIONAL

COMBINATION CONTROLS

SOLENOID

SOLENOID or MANUAL

SOLENOID and PILOT or MANUAL

SOLENOID and PILOT

SERVO

DETENT

THERMAL

MANUAL CONTROL SYMBOLS

MANUAL SHUTOFF

PUSH-PULL LEVER

RELEASED PRESSURE

EXTERNAL RETURN

SPRING LOADED

HYDRAULIC PUMPS VARIABLE DISPLACEMENT NON-COMPENSATED

PEDAL

LINES CROSSING

LINES JOINING

VARIABLE DISPLACEMENT NON-COMPENSATED

UNIDIRECTIONAL

UNIDIRECTIONAL

BIDIRECTIONAL

BIDIRECTIONAL

INTERNAL SUPPLY PRESSURE

COMPLETE

HYDRAULIC AND PNEUMATIC CYLINDERS

SINGLE ACTING

DOUBLE ACTING

INTERNAL PASSAGEWAYS

HYDRAULIC MOTORS FIXED DISPLACEMENT

SPRING

REMOTE SUPPLY PRESSURE

SIMPLIFIED

CROSSING AND JOINING LINES

GAS CHARGED

PUSH BUTTON

PILOT CONTROL SYMBOLS

INTERNAL RETURN

ACCUMULATORS

FIXED DISPLACEMENT

GENERAL MANUAL

INFINITE POSITIONING

FLOW IN ONE DIRECTION

THREE POSITION

PARALLEL FLOW

CROSS FLOW

TWO POSITION

FLOW ALLOWED IN EITHER DIRECTION

ELECTRICAL SYMBOLS Hydraulic Symbols (Electrical)

M

G Transducer (Fluid)

Transducer (Gas / Air)

Pressure Switch (Adjustable)

Pressure Switch

Generator

Electric Motor

Electrical Wire

Temperature Switch

Electrical Symbols (Electrical)

T

Pressure Symbol

Temperature Symbol

Level Symbol

Flow Symbol

Wire Number Identification Codes

Electrical Schematic Example

Hydraulic Schematic Example Current Standard

Current Standard Harness identification code This example indicates wire 135 in harness "AG".

Wire

Circuit Number Identification

Wire Color

325-AG135 PK-14 325-PK

Circuit Identification Number

Wire Color

Wire Gauge

Previous Standard Wire Color

Wire

325-PK-14 B Circuit Number Identification

A

Wire Gauge (EXAMPLE VALVE)

7

6

5

3

TRAVEL MOTOR (RIGHT)

2

(11) MOTOR GP TRAVEL (RIGHT) 209-5992

DR

(3) CYLINDER GP BUCKET

E SEE LOC A-7 RCV-C

Pp3

MU

T2

AG

BL3 B1

A1

DR

AR3

(24) VALVE GP SWING CUSHION 158-9085

(20) VALVE GP PILOT (TRAVEL) 270-5947

BG

BG

TRAVEL BRAKE B BL2

TRAVEL(L)

B

(25) VALVE GP TRAVEL COUNTERBALANCE (LEFT) 137-3718

TRAVEL(R)

B

BL1

BR1

AL1

FWD T4

T6

(15) VALVE GP LOAD CONTROL (BOOM) 255-5683

aR1

PRESSURE SWITCH SP3

SPi

BP3 aL2

A2

BUCKET

OPEN JR4

L JL4

A3

A4

A5

A6

CLOSE JR2

A7

DOWN JR3

AL4

A8

BOOM(2) Di2

Pi2

(OUT)

(R)

Pi3 Di3

bL3

bR3

B4

B5

B6

bR4

bL3

B7

SEE LOC C-2 RCV-B

DST

bL1

bL2

bL4

PL

P2

Pi1

PSA2 DR1

P-IN TRAVEL SPEED

(6) FILTER GP OIL (HYDRAULIC RETURN) 188-4140

SWING PRIORITY

PSA1

DR4

Pi2

DR2

(14) VALVE GP CHECK (OIL COOLER BYPASS) 201-9329

7

bR5

Di1

bR3

RCV: RETURN CHECK VALVE

HR

bR4

G2

HYDRAULIC CIRCUIT COLOR DESCRIPTIONS

HR

A1

B2

FR U

(21) VALVE GP PRESSURE REDUCING (BOOM, SWING PRIORITY) 232-4102

A2

T-OUT1

DR6

P1

PILOT PUMP OUTPUT IMPLEMENT AND LEFT TRAVEL PUMP OUTPUT POWER SHIFT CONTROL CIRCUIT SUPPLY LINE SHUTTLE VALVE CONTROL CIRCUIT STICK CONTROL AND STICK CYLINDER CIRCUIT LEFT TRAVEL CONTROL AND LEFT TRAVEL MOTOR CIRCUIT ATTACHMENT CONTROL CIRCUIT SWING CONTROL AND SWING MOTOR CIRCUIT DRAIN / RETURN LINE SWING BRAKE CONTROL CIRCUIT IMPLEMENT AND RIGHT TRAVEL PUMP TRAVEL SPEED CONTROL CIRCUIT BUCKET CONTROL AND BUCKET CYLINDER CIRCUIT RIGHT TRAVEL CONTROL AND RIGHT TRAVEL MOTOR CIRCUIT BOOM CONTROL AND BOON CYLINDER CIRCUIT COMBINED LEFT AND RIGHT PUMP SIGNAL PRESSURE

(12) PUMP GP MAIN 272-6955

Pn2 Ps2 PsM2

Dr2

I

(5) FILTER GP PILOT (HYDRAULIC OIL) 158-8987

(1) ACCUMULATOR GP 164-6981

OUT

AA

(7) FILTER GP OIL (HYDRAULIC, CASE DRAIN) 126-2075

PRESSURE SENSOR

4

3

DD

M1

CC

Pm

CALLOUTS YY

Callout Number

Pn1

(Machine Location from Component LocationsTable)

PROPORTIONAL REDUCING VALVE

Pi

A3 G1

Component Group

HR

PR

SOS

Drain / Return Lines

PsM1 Ps1

A1

PC

Pilot / Load Sensing Pressure

DrM

PILOT

IN

Pressure Line

Dr1

D

PAC

B

LINE PATTERNS

S1

P2

PG

5

HL

A2

T

6

BB

M2

T

F

OIL COOLER

STICK(2) (OUT)

S3

BYPASS D E

BOOM(1) (UP)

PL

DR5

B

B1

G RCV-A SEE LOC C-6

PR

RR

P1

DR3

SLOW RETURN

bR2

bR1

aL2

C

A

PL PR

ATCH BUCKET (OPEN)

(23) VALVE GP SHUTTLE 2 259-7732

NO.1 (TRAVEL)

A

TRAVEL(R) (FWD)

PRESSURE SENSOR

(8) MANIFOLD GP CONTROL (PILOT OIL) 215-5037

RCV-C

(17) VALVE GP MAIN CONTROL 259-7464

B8

PRESSURE SWITCH

SEE LOC E-6

SWING (FWD)

bL2

T-OUT2

aR4

B3

BR5

C

R3

MAIN RELIEF

bL4

NO.2 (SWING)

aR3

B2

BP1

aR5 AR5

UP JR1

HL

B1

(REV)

BT

Pi1 (DOWN)

BOOM

HL

B

(REV)

AR3

PUMP RIGHT

16 Page,

A1

R JL2

Pi4

SEE LOC A-7 RCV-B

aR4

PUMP LEFT

RENR7296-06

(22) VALVE GP SHUTTLE 1 185-0462

IN JL3

(L)

ACTIVATION HYDRAULIC

(Dimensions: 34 inches x 24 inches)

JL1

OUT

SWING

Di4

JRT

JRP

STICK

aL3 (IN)

aL4 (UP)

BR3

aR1

BL1

BR4 BP2

AR4

aR3

BR1

NO.3 (LOCK)

JLT

BL2

T

AR1

AL1

STICK(1)

JLP

AL2

SEE LOC A-7 RCV-A

(19) VALVE GP PILOT (JOYSTICK, RH) 270-5952

(18) VALVE GP PILOT (JOYSTICK, LH) 270-5951

aL1

BPi

AL3 BL3

BDr

PRESSURE SWITCH

D

AR1

BACK

T3

bR1

bL1

A

(CLOSE)

aL1

FWD

TRAVEL(L)

T2

SDr

T5

BR4

(13) SWIVEL GP 234-4440

(16) VALVE GP LOAD CONTROL (STICK) 255-5680

BACK T1

AR4

(26) VALVE GP TRAVEL COUNTERBALANCE (RIGHT) 137-3718

TRAVEL BRAKE A

A AL2

BR3

AG

aR2

D

AG

BR2 AR2

AL3

E

T1

T2 BG

(2) CYLINDER GP BOOM

Pp3

T1

C

1

(9) MOTOR GP SWING 158-8986

PG

(4) CYLINDER GP STICK

TRAVEL MOTOR (LEFT)

(10) MOTOR GP TRAVEL (LEFT) 209-5992

SWING MOTOR

4

Taps (Pressure, Sampling, Sensor - by letter) (52) VALVE GP - CONTROL 138-1234 Part Number

Component Name

THIS SCHEMATIC IS FOR THE 320D AND 320D L EXCAVATOR HYDRAULIC SYSTEM MEDIA NUMBER: RENR7296-06 SCHEMATIC PART NUMBER: 259-7469, CHANGE: 01, VERSION: HE Components are shown installed on a fully operable machine with the key and engine off, and with parking brake set. Refer to the appropriate Service Manual for Troubleshooting, Specifications and Systems Operations.

2

1

A

MACHINE COMPONENT LOCATIONS VIEW ALL CALLOUTS

4

23

22

18

19

20 3 2

21 14

8

1 11

26

FILTER GP VIEW ALL CALLOUTS

SOS

7

AA

6

5

MOTOR GP - PISTON (TRAVEL) VIEW ALL CALLOUTS

25

10

MOTOR GP - SWING AND SWIVEL VIEW ALL CALLOUTS

9

24

13

PUMP GP - PISTON (MAIN) VIEW ALL CALLOUTS

DD CC

12

BB

VALVE GP - MAIN CONTROL VIEW ALL CALLOUTS

17

15

16