INTERACTIVE SCHEMATIC

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EC-C3EC-C2 E-C60

EC-C1

E-C61

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©2011 Caterpillar, All Rights Reserved Printed in U.S.A.

KENR9676-01October 2011

316E ExcavatorHydraulic SystemDZW1-UPWZY1-UPYZZ1-UP

COMPONENT LOCATION

Note A: Refer to parts manual for specific cylinder information.

Note B: Part numbers are located on the main Hydraulic System Schematic accordingto the effectivity of the machine.

Description PartNumber

MachineLocation

SchematicLocation

Accumulator Gp 164-6981 1 B-5Cylinder Gp - Boom Note A 2 F-5Cylinder Gp - Bucket Note A 3 F-4Cylinder Gp - Stick Note A 4 F-4Filter Gp - Case Drain 289-8194 5 A-4Filter Gp - Pilot Hydraulic 158-8987 6 B-4Filter Gp - Return Oil 259-0869 7 A-5Motor Gp - Left Travel 185-6953 8 F-8Motor Gp - Right Travel 185-6953 9 F-7Motor Gp - Swing 364-0978 10 F-6Pump Gp - Main Hydraulic 349-9085 11 B-3

12Sensor Gp - Pressure (Boom Cylinder Head) 338-697113

F-5Sensor Gp - Pressure (Boom Down Control) 338-6970

14A-8

Sensor Gp - Pressure (Negative Flow Control) 338-697015

F-2Sensor Gp - Pressure (Negative Flow Control) 338-6970

16F-2

Sensor Gp - Pressure (Pump 1) 338-697117

C-4Sensor Gp - Pressure (Pump 2) 338-6971

18C-5

Sensor Gp - Pressure (Swing Control) 338-697019

A-7

20Switch As - Pressure (Implement) 319-4407

21

A-7Switch As - Travel Pressure 349-5406

22

E-5Swivel Gp 162-4696

23

E-7Valve Gp - Cooler Bypass 171-0002

24

C-3Valve Gp - Joystick (Left Hand) 323-7948

25

B-8Valve Gp - Joystick (Right Hand) 323-7947

26

B-7Valve Gp - Main Control 335-0495

27

D-3Valve Gp - Manifold (Control) 215-5037

28

B-6Valve Gp - Pilot (Travel) 310-0415

29

D-8Valve Gp - Pressure Reducing (Boom Priority) 352-7065

30

C-3Valve Gp - Pump Control (Negative Flow) 310-0107

31

F-3Valve Gp - Shuttle 323-7560

32

A-7Valve Gp - Solenoid and Pressure Reducing (Boom Lowering) 323-7894

33

C-4Valve Gp - Swing Cushion 158-9085

34

E-6Valve Gp - Travel Left Counterbalance 199-0504 E-8Valve Gp - Travel Right Counterbalance 199-0504 E-7

TAP LOCATION

TapNumber Description Schematic

LocationAA Pilot Pump Delivery Pressure B-4 BB Boom Lowering Pilot Pressure C-4CC NFC2 Pressure E-3DD NFC1 Pressure E-3EE Right Pump Power Shift Pressure B-4FF Left Pump Power Shift Pressure A-4

SOS Hydraulic Oil Sampling Port B-4

GG Case Drain Pressure B-3HH Power Shift Pressure A-3

FLUID POWER SYMBOLS

ONE POSITION TWO POSITION THREE POSITION

VENTED PRESSURIZED RETURN ABOVE FLUID LEVEL RETURN BELOW FLUID LEVEL

LINES CROSSING LINES JOINING

TWO-WAY THREE-WAY FOUR-WAY

SPRING CONTROL VALVES RESTRICTION LINE RESTRICTION(FIXED)

2-SECTION PUMP

MAIN AUX.

SPRING(ADJUSTABLE)

VARIABILITY LINE RESTRICTION(VARIABLE)

LINE RESTRICTIONVARIABLE and PRESSURE

COMPENSATED

PRESSURECOMPENSATION

PUMP: VARIABLE andPRESSURE COMPENSATED

ENERGY TRIANGLESHYDRAULIC PNEUMATIC

MEASUREMENT

PRESSURE TEMPERATURE FLOW

ROTATING SHAFTS

UNIDIRECTIONAL BIDIRECTIONAL

PUSH-PULL LEVER PEDALGENERAL MANUAL PUSH BUTTON SPRING

MANUAL CONTROL SYMBOLS

HYDRAULIC MOTORS

FIXEDDISPLACEMENT

VARIABLE DISPLACEMENTNON-COMPENSATED

UNIDIRECTIONAL

BIDIRECTIONAL

HYDRAULIC PUMPS

FLUID STORAGE RESERVOIRS

CROSSING AND JOINING LINES

VALVE ENVELOPES VALVE PORTS

BASIC COMPONENT SYMBOLS

FLUID CONDITIONERPUMP or MOTOR

FIXEDDISPLACEMENT

VARIABLE DISPLACEMENTNON-COMPENSATED

UNIDIRECTIONAL

BIDIRECTIONAL

VALVES

PILOT CONTROL SYMBOLSRELEASED PRESSURE

EXTERNAL RETURN INTERNAL RETURN

REMOTE SUPPLY PRESSURE

SIMPLIFIED COMPLETE INTERNALSUPPLY PRESSURE

ACCUMULATORS

SPRING LOADED GAS CHARGED

SOLENOIDor MANUAL

SOLENOIDand PILOT

SOLENOID and PILOT or MANUAL

COMBINATION CONTROLS

SOLENOID SERVO THERMAL DETENT

HYDRAULIC AND PNEUMATIC CYLINDERS

DOUBLE ACTINGSINGLE ACTING

BASICSYMBOL

SPRINGLOADED

CHECK VALVES

TWOPOSITION

INFINITEPOSITIONING

FLOW IN ONEDIRECTION

FLOW ALLOWED INEITHER DIRECTION

THREEPOSITION

CROSSFLOW

PARALLELFLOW

INTERNAL PASSAGEWAYS

NORMAL POSITION

A B

P T

A B

P TSHIFTED POSITION INFINITE POSITION

CONTROL VALVES

ATTACHMENT

MANUAL SHUTOFF

SHUTTLE PILOTCONTROLLED

ELECTRICAL SYMBOLSHydraulic Symbols (Electrical)

325-AG135 PK-14

Circuit IdentificationNumber

Wire Color Wire Gauge

Harness identification codeThis example indicateswire 135 in harness "AG".

325-PK-14

Wire Gauge

Wire Color

Circuit Number Identification

Wire Number Identification Codes

Current Standard

Previous Standard

Electrical Schematic Example Hydraulic Schematic Example

325-PK

Wire ColorCircuit Number Identification

B A

Wire

Wire

(EXAMPLE VALVE)

Current Standard

Transducer(Fluid)

Transducer(Gas / Air)

G

Generator

Electrical WirePressure Switch

MElectric Motor

Pressure Switch (Adjustable)

Temperature Switch

PressureSymbol

TemperatureSymbol

LevelSymbol

FlowSymbol

Electrical Symbols (Electrical)

T

Components are shown installed on a fully operable machine with the key and engine off, transmission shifterin neutral and with parking brake set.Refer to the appropriate Service Manual for Troubleshooting, Specifications and Systems Operations.

SCHEMATIC PART NUMBER: 337-8512, CHANGE: 03, VERSION: HEMEDIA NUMBER: KENR9676-01 THIS SCHEMATIC IS FOR THE 316E HYDRAULIC SYSTEM

12345678

A

B

C

D

E

F

12345678

A

B

C

D

E

F

HYDRAULIC CIRCUIT COLOR DESCRIPTIONSPILOT PUMP OUTPUTRIGHT MAIN PUMP OUTPUTSTEERING CIRCUITSUPPLY LINESTICK CYLINDER CONTROL CIRCUITLEFT TRAVEL MOTOR CONTROL CIRCUITATTACHMENT CONTROL CIRCUITSWING MOTOR CONTROL CIRCUITDRAIN / RETURN LINESWING BRAKE CONTROL CIRCUITLEFT MAIN PUMP OUTPUTTRAVEL SPEED CONTROL CIRCUITBUCKET CYLINDER CONTROL CIRCUITRIGHT TRAVEL MOTOR CONTROL CIRCUITBOOM CYLINDER CONTROL CIRCUIT

LINE PATTERNS

Drain / Return Lines

Component Group

Pilot / Load Sensing Pressure

Pressure Line

CALLOUTS

Taps (Pressure, Sampling, Sensor - by letter)YY

(52) VALVE GP - CONTROL138-1234

Callout Number(Machine Location from

Component LocationsTable)

ComponentName

Part Number

NOTE A: FOR CANADA BC/AL REGULATION

162-4696

185-6953185-6953

199-0504199-0504

289-8194

158-8987

349-9085

171-0002

335-0495

259-0869

323-7947

323-7948

164-6981 352-6860 NOTE A215-5037

310-0415

310-0107

323-7894

352-7065

323-7560

158-9085

364-0978338-6970

338-6970

338-6971 338-6971

338-6970

338-6970

319-4407

338-6971

(OUT)

bR5

(R)

PSW PTA

(DOWN)

(UP)

BL3 AL3

(CLOSE)

R2

T(OPEN)(IN)

pB1

(DOWN)

dST1

(L)(IN)

R1

(FWD)(FWD)

(BACK) (BACK)

(UP)

Dr

PsM1

Pn1

Pm

M1

A1

S3

S1

A2

M2

A3

Pi

Pn2

(OUT)

PAC

DR2

DR3 DR4 DR5 DR6

DR1

P-IN

Pi1

Pi2

PSA2 PSA1

P1

P2

T-OUT2

T-OUT1

(FWD)

(BACK)(BACK)

(FWD)

TT

TP

T1

T2

T3

T4

CP1

CP2

JR3(UP)

JR2(OPEN)

JR4(CLOSE)

JR1(DOWN)

JL3(IN)

JL1(OUT)

JL4(L)

JL2(R)

DrMPG

INOUT

T

PC

B4

B7B1

B3

B6

B5

B2

TRAVEL(L) TRAVEL(R)

JLP

JLT

JRT

JRP

BOOM

BOOMSTICK

STICKSWING

SWING

BUCKET

BUCKET

A

BC

D

E

FDB1

DB2DB4

DB5 DB6

PB4PB5 PB6 PB2

PB1

T

A1

P

A2B1B2

A

P

T

A

TB

P

aL6PRg PLg

INOUT

Pp3

B ABA

T1

Pp3

TRAVEL MOTOR (LEFT) TRAVEL MOTOR (RIGHT)

T2

T2

T1

AGAG BGBG

B A

DR

PR

SWING MOTOR

B1 A1DR

BG AG

bL3

aL3

DB3

DB3

bL5

BR3 AR3BR2

AR2 BR1 AR1

BL1

AL1 AL2 BL2BL4 AL4

AL2 BL2

BR3AR3BL4 AL4

NO

.1

(TR

AVE

L)

NO

.2(S

WIN

G)

NO

.3(L

OC

K)

PR PL

PR

PL

aL2aL1aR1aR2

aR3

bR3bR2

bR1 bL1

bL2

bL4

aL4

bL1

aL1

bR1

aR1

bR3

aR2bR2

bL4

bL2

aL4

aL2

A1 A2 A3 A4 A5 A6 A7 A8

B1 B2 B3 B4 B5 B6 B7 B8C1 C2 C3 C4

aR3

STI

CK

(R)

BO

OM

(2)

STI

CK

(2)

BU

CK

ET

ATC

H

BO

OM

(1)

TRAV

EL(

R)

TRAV

EL(

L)

SW

ING

STI

CK

(1)

bL6

bL6

bR4

PA1

PA1aR5

aR5

BR1

AR1 BL1

AL1

AR2BR2

bR4

349-5406

(2) BOOM CYLINDER (4) STICK CYLINDER(3) BUCKET CYLINDER

(21) SWIVEL GP

(8) MOTOR GPLEFT TRAVEL

(33) VALVE GPTRAVEL LEFT

COUNTERBALANCE

(34) VALVE GPTRAVEL RIGHT

COUNTERBALANCE

(9) MOTOR GPRIGHT TRAVEL

(20) SWITCH AS.TRAVEL PRESSURE

(10) MOTOR GPSWING

(29) VALVE GPPUMP CONTROL

(NEGATIVE FLOW)

(25) VALVE GPMAIN CONTROL

(5) FILTER GPCASE DRAIN

(6) FILTER GPPILOT HYDRAULIC

(11) PUMP GPMAIN HYDRAULIC

(22) VALVE GPCOOLER BYPASS

(7) FILTER GPRETURN OIL

(24) VALVE GPJOYSTICK (RIGHT HAND)

(23) VALVE GPJOYSTICK (LEFT HAND)

(1) ACCUMULATOR GP(26) VALVE GP

MANIFOLD \(CONTROL)

(27) VALVE GPPILOT (TRAVEL)

(31) VALVE GPSOLENOID AND PRESSURE REDUCING

(BOOM LOWERING)

(28) VALVE GPPRESSURE REDUCING

(BOOM PRIORITY)

(30) VALVE GPSHUTTLE

(32) VALVE GPSWING CUSHION

(14) SENSOR GPPRESSURE(NEGATIVEFLOW CONTROL)

(15) SENSOR GPPRESSURE(NEGATIVEFLOW CONTROL)

(12) SENSOR GPPRESSURE

(BOOM CYLINDER HEAD)

(18) SENSOR GPPRESSURE(SWING CONTROL)

(13) SENSOR GPPRESSURE

(BOOM DOWN CONTROL) (19) SWITCH ASPRESSURE(IMPLEMENT)

(17) SENSOR GPPRESSURE (PUMP 2)

(16) SENSOR GPPRESSURE (PUMP 1)

AA SOS

GG

HH

CCDD

BB

FF

EE

MACHINE COMPONENT LOCATIONS

3433 32 21 121098 4

32

LEFT SIDE VIEW (CAB REMOVED)

30

28

27

26

25

24

23

19

18

13

1

MAIN CONTROL VALVE

BOTTOMVIEW

TOPVIEW

FWD

BB

31

22

2017

16

RIGHT SIDE REAR VIEW

SOS

HH

GG

FF

EE

DD

CC

AA

29

15

14

11

7

6

5