UENR3176September 2013

Smart Boom

336E ExcavatorHydraulic System - AttachmentYCE318-UPYEP295-UPBZY1205-UPTMZ292-UP

Printed in U.S.A.© 2013 Caterpillar, All Rights Reserved

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)

PUMP(2 - SECTION)

SPRING(ADJUSTABLE)

VARIABILITY LINE RESTRICTION(VARIABLE)

PRESSURECOMPENSATION

PUMP(VARIABLE & PRESSURE

COMPENSATED)

MEASUREMENT

PRESSURE TEMPERATURE FLOW

ROTATING SHAFTS

UNIDIRECTIONAL BIDIRECTIONAL

PUSH - PULL LEVER PEDALGENERAL MANUAL PUSH BUTTON SPRING

FIXEDDISPLACEMENT

VARIABLE DISPLACEMENTNON-COMPENSATED

UNIDIRECTIONAL

BIDIRECTIONAL

VALVE ENVELOPES VALVE PORTS

FLUID CONDITIONERPUMP OR MOTOR

FLUID POWER SYMBOLS

UNIDIRECTIONAL

BIDIRECTIONAL

RELEASED PRESSURE

EXTERNAL RETURN INTERNAL RETURN

REMOTE SUPPLY PRESSURE

SIMPLIFIED

HYDRAULIC PUMPS

ACCUMULATORS

SPRING LOADED GAS CHARGED

SOLENOID OR MANUAL

SOLENOID & PILOT

SOLENOID &PILOT OR MANUAL

SOLENOID SERVO THERMAL DETENT

HYDRAULIC & PNEUMATIC CYLINDERS

DOUBLE ACTINGSINGLE ACTING

BASICSYMBOL

SPRINGLOADED

CHECK VALVES

2 POSITIONINFINITE

POSITIONING

FLOW IN ONEDIRECTION

FLOW INEITHER

DIRECTION

3 POSITION

CROSSFLOW

PARALLELFLOW

INTERNAL PASSAGEWAYS

NORMAL POSITION

A B

P T

A B

P TSHIFTED POSITION INFINITE POSITION

CONTROL VALVES

ATTACHMENT

MANUAL SHUTOFF

SHUTTLE PILOTCONTROLLED

MAIN AUX

LINE RESTRICTION(VARIABLE & PRESSURE

COMPENSATED)

MANUAL CONTROL SYMBOLS

HYDRAULIC MOTORS

FLUID STORAGE RESERVOIRS

CROSSING & JOINING LINES

VALVES

PILOT CONTROL SYMBOLS

COMBINATION CONTROLS

BASIC COMPONENT SYMBOLS

ENERGY TRIANGLESHYDRAULIC PNEUMATIC

INTERNALSUPPLY PRESSURE

COMPLETE

FIXEDDISPLACEMENT

VARIABLE DISPLACEMENTNON-COMPENSATED

HYDRAULIC SYMBOLS (ELECTRICAL)

ELECTRICAL SYMBOLS TABLE

325-AG135 PK-14

HARNESS IDENTIFICATION CODE THIS EXAMPLEINDICATES WIRE 135 IN HARNESS “AG”

325-PK-14

WIRE GAUGE

WIRE COLOR

CIRCUIT NUMBERIDENTIFICATION

WIRE NUMBER IDENTIFICATION CODES

CURRENT STANDARD

PREVIOUS STANDARD

ELECTRICAL SCHEMATIC EXAMPLE HYDRAULIC SCHEMATIC EXAMPLE

325-PK

WIRE COLORCIRCUIT NUMBER

IDENTIFICATION

B

WIRE

WIRE

(EXAMPLE VALVE)

CURRENT STANDARD

TRANSDUCER(FLUID)

MELECTRIC MOTORTRANSDUCER

(GAS / AIR)

G

GENERATOR

PRESSURE SWITCH ELECTRICAL WIREPRESSURE SWITCH(ADJUSTABLE)

TEMPERATURESWITCH

PRESSURESWITCH

TEMPERATURESWITCH

LEVELSWITCH

FLOWSWITCH

ELECTRICAL SYMBOLS (ELECTRICAL)

A

CIRCUIT NUMBERIDENTIFICATION

WIRECOLOR

WIRE GAUGE

UE

NR

3176

36

Pa

ge

, (D

ime

ns

ion

s:

48

in

ch

es

x 3

5 i

nc

he

s)

MAIN PUMPOPERATOR STATION

MACHINE VIEW

MAIN VALVE (FRONT VIEW)

MAIN VALVE (REAR VIEW) MACHINE (TOP VIEW) (WITH ATTACHMENT)

TOP VIEW (UNDER BOOM) (WITH ATTACHMENT)

3536

6

5

4

34 25

15 23 31 24

3 16 22232

2114 9 7

EE DD HH

FF GG

SOS BB

HYD.TANK

8

101

29 AA

28

30

HYD.TANK

CC

UNDERPUMP

19 2027 33

17 18

37

26

12

13 11

CAB

40

47 41

4642

43

4445

48

II

Description PartNumber

MachineLocation

SchematicLocation

Accumulator Gp - Hydraulic (Charged) 164-6981 1 D-5Control Gp - Joystick (LH) 323-7948 2 E-2Control Gp - Joystick (RH) 323-7947 3 E-1Cylinder Gp - Boom Note A 4 F-7Cylinder Gp - Bucket Note A 5 F-8Cylinder Gp - Stick Note A 6 F-8Filter and Valve Gp - Pilot (Hydraulic Oil) 158-8987 7 B-4Filter Gp - Oil (Hydraulic Return) 188-4145 8 A-4Filter Gp - Oil (Hydraulic, Case Drain) 289-8194 9 A-4Manifold Gp - Control 215-5037 10 C-3Motor Gp - Swing 334-9973 11 F-5Motor Gp - Travel (LH) 355-5668 12 F-4Motor Gp - Travel (RH) 355-5668 13 F-3Pump Gp - Main Hydraulic 369-9602 14 B-3Sensor Gp - Pressure (Boom Cylinder Head) 338-6971 15 F-7Sensor Gp - Pressure (Boom Down Control) 338-6970 16 D-2Sensor Gp - Pressure (Drive Pump) 338-6971 17 A-7Sensor Gp - Pressure (Driven Pump) 338-6971 18 A-6Sensor Gp - Pressure (Negative F Cont, Drive Pump) 338-6971 19 D-7Sensor Gp - Pressure (Negative F Cont, Driven Pump) 338-6971 20 D-6Sensor Gp - Pressure (Swing Control) 338-6970 21 D-1Switch As - Pressure (Implement) 319-4407 22 C-1Switch As - Pressure (Travel, LH) 319-4407 23 F-2Switch As - Pressure (Travel, RH) 319-4407 24 F-1Swivel Gp 234-4440 25 E-3Valve Gp - Check 389-2477 26 B-8Valve Gp - Check (Oil Cooler Bypass) 335-0300 27 D-6Valve Gp - Load Control (Boom Drift Reduction) 323-7610 28 A-8Valve Gp - Load Control (Stick Drift Reduction) 335-0200 29 D-5

Valve Gp - Main Control369-8442

30 A-6

Valve Gp - Pilot (Shuttle) 369-8502 31 F-1Valve Gp - Shuttle 323-7560 32 D-1Valve Gp - Solenoid (Heavy Lift) 352-7176 33 D-3Valve Gp - Swing Cushion 158-9085 34 E-5Valve Gp - Travel Counterbalance (LH) 322-8714 35 E-4Valve Gp - Travel Counterbalance (RH) 322-8714 36 E-3Valve Gp -Pressure Reducing (Boom Priority) 352-7065 37 C-1

Component Locations

TapNumber Description Schematic

LocationAA Boom Regeneration Valve Pressure B-8BB Pilot Pump Delivery Pressure B-4CC Pump Case Pressure B-3DD Drive Pump Negative Flow Pressure (NFC1) B-2EE Drive Pump Delivery Pressure B-2FF Power Shift Pressure B-2GG Idler Pump Delivery Pressure B-2

II Boom Down REPRV Pressure A-2HH Idler Pump Negative Flow Pressure (NFC2) A-2

SOS Hydraulic Oil Sampling Port B-4

Tap LocationsPressure, Sampling, and Sensor

369-8444(Standard)

(Heavy Lift)

Note B: Refer to the Parts Manual using a specific serial number prefix in SIS before ordering parts from this schematic.Note A: Refer to parts manual for specific cylinder information.

Block Gp - Hydraulic 323-7765 40 B-8Plate 199-2012 41 E-6Sensor Gp - Pressure (Overload Warning) 338-6971 42 E-7Valve Gp - Load Control (Boom Cylinder) (LH) 263-1964 43 E-8Valve Gp - Load Control (Boom Cylinder) (RH) 263-1964 44 F-6Valve Gp - Main Control (Heavy Lift) (Smart Boom) 369-8446 45 A-5Valve Gp - Manual (Boom Lower) 335-0512 46 E-7Valve Gp - Solenoid (Boom Down Ele. Check) 297-0371 47 E-6Valve Gp - Solenoid Press Redc. (Boom Down) 323-7894 48 C-2

Attachments: Smart Boom

UE

NR

3176

36

Pa

ge

, (D

ime

ns

ion

s:

48

in

ch

es

x 3

5 i

nc

he

s)

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

SCHEMATIC PART NUMBER: 369-8473, CHANGE: 01, VERSION: HE

THIS SCHEMATIC IS FOR THE 336E EXCAVATOR HYDRAULIC SYSTEM

MEDIA NUMBER: UENR3176 ATTACHMENT: SMART BOOM

Note: Refer to the Parts Manual using a specific serial number prefix in SIS before ordering parts from this schematic.

A

B

C

D

E

F

1234567891011121314

G

H

I

J

1234567891011121314

A

B

C

D

E

F

G

H

I

J

HYDRAULIC CIRCUIT COLOR DESCRIPTIONSPILOT PUMP OUTPUTIDLER PUMP OUTPUTHEAVY LIFT CIRCUITPOWERSHIFT CONTROL CIRCUITSUPPLY LINESTICK CYLINDER AND CONTROL CIRCUITLEFT TRAVEL CONTROL CIRCUITSWING CONTROL CIRCUITDRAIN / RETURN LINESWING BRAKE CONTROL CIRCUITDRIVE PUMP OUTPUTTRAVEL SPEED CONTROL CIRCUITBUCKET CYLINDER AND CONTROL CIRCUITRIGHT TRAVEL CONTROL CIRCUITBOOM CYLINDER AND 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 Locations Table)

ComponentName

Part Number

DD

II

FF

GG

EE

HH

CC

BB SOS

AA

IDENT CONNECTOR12 PS PRESS EPRV 13 BOOM REGEN REPRV 15 NFC 1 LIMIT EPRV 16 NFC 2 LIMIT EPRV 17 SWING BREAK SOL 18 TRAVEL SPEED CHANGE SOL 19 STRAIGHT TRAVEL SOL 20 HYD LOCK SOL 21 SWING PRIORITY SOL

25 BOOM DOWN REPRV (S1)26 BOOM UP ELE. CHECK SOL (EC2)

24 BOOM DOWN ELE. CHECK SOL (EC1)

B

19

21

13

T

R6

ST6

(IN)STICK(2)

(OUT)

(OUT)BUCKET STICK(1)

(IN)

(R)

BRG(L)

(UP)SWING

(UP)

BT3

L3

BOOM(1) BOOM(2)

(DOWN)

(FWD)TRAVEL(R)

(BKWD) (FWD)TRAVEL(L)

STR-TRAVEL

(BKWD)

(OPEN)

(CLOSE)

26

(41) PLATE

369-8442

164-6981352-6860 NOTE C

352-7065

323-7948

323-7947

369-8502

215-5037

323-7560

335-0300

322-8714

355-5668

234-4440

322-8714

355-5668334-9973

188-4145

289-8194

158-8987369-9602

20

17

18

19

323-7610

335-0200

158-9085

21

13

1615

12

389-2477

TP

TT

TRAVEL(L) TRAVEL(R)

(FWD) (BKWD) (FWD)(BKWD)T1T5T2 T4T6T3

(OUT) (IN) (R) (L) (CLOSE)(OPEN) (DOWN) (UP)

JLP

JLT

JRP

JRT

BOOMBUCKETSTICK SWING

JL1 JL3 JL2 JL4 JR4JR2 JR3JR1

1

12

23

3

4

4

5

5 6

6

P A

B

T

A B

DR

PG

SWING MOTOR

(L)(R)

A1 B1DR

AG BG

T

OUT

PG PC

IN

A

E

C

B

ST

SP1

NFC-S1 NFC-S2NFC-Dr1 NFC-Dr2

BT

BP1

PUMP-S1 PUMP-S2

DR6T-OUT1DR5Pi2DR4DR3

P2 P-IN PSA2 DR1 PSA1 DR2T-OUT2Pi1

PACP1

Ps2Di

Ps1

S1 Dr1

Psv

a1

a3

a2

A1

A2A4

Do

Pi1

Pi2

TRAVEL MOTOR (LEFT) TRAVEL MOTOR (RIGHT)

Pp3

BA B A

AG AGBG BG

T2 T2

T1 T1

Pp3

(FWD) (FWD)(BKWD) (BKWD)

pR5b

pL6f

pL3b

pL5f

pR5f

pL3f

pL4b pR4b

pSR

pR6f

SPi

pR2bpL2bpL1fpR1f

pL5b

pR3b

PD-Pi

PD-Dr

A1 A2 A3 A4 A5 A6 A7 A8

B1 C1 B2 B3 C2 B4 C3 B5 B6 B7 C4 B8

PRV-T

pR3f

pBR

L5 L6R5 SP2

R4L4

MU

R.C.V-DMF-TANK

R.C.V-D

pR5f

L2

L1

R3

pR3b

pL2b

pL3f

pL5b

pL3b

pL4b

L5

L4

pL5f

pR1f

R5

R4

L6

pR6f

pR2b

pSR

MU

R1

R2

SP2

SPi

pR3f

pR4b

pST

dST

P1 P2

pL6f

SDr

pL1f

pR5b

dR1b

RDr

pBR

NFC2NFC1

NFC-PiNFC-Dr

T

R6

ST6

(IN)STICK(2)

(OUT)

(OUT)BUCKET STICK(1)

(IN)

(R)

BRG(L)

(UP)SWING

(UP)

BT3

L3

BOOM(1) BOOM(2)

(DOWN)

(FWD)TRAVEL(R)

(BKWD) (FWD)TRAVEL(L)

STR-TRAVEL

(BKWD)

BP2

BPi

BDr

(OPEN)

(CLOSE)

PRV-T

MF-TANK NFC-Dr

PD-Dr

PD-PipST

NFC-Pi

dST

SOL6 - T

dR1b

SDr

RDr

P2

P1

R1L1 L2 R2

NFC1

NFC2

338-6970 338-6970

319-4407

319-4407 319-4407

338-6971338-6971

338-6971338-6971

352-7176

A

P T

HPi

SOL1-T

SOL1-T

HPiHEAVY LIFT

NOTE C: (LOC: C-3) FOR BC/AL REGULATION

369-8444(Standard)(Heavy Lift)

AB

Dr

24

X

X

Dr

Pi

T

CYL CV

X

Dr

CVCYL

Pi

T

X BP2

BLCV-Dr

BLCV-Pi

R3

338-6971

26

BLCV - DrBP2

BT3

L3

NOTE D: (LOC: B-8) IN SMART BOOM ATTACHMENT(ON THE MAIN CONTROL VALVE) THE BLOCK GP REPLACES BOOM LOAD CONTROL VALVE.

NOTE D323-7765

199-2012

338-6971

263-1964

263-1964

369-8446

297-0371

335-0512

323-7894 25

P

T

BLCV-Pi

SOL6-T

A

(20) SENSOR GPPRESSURE

(NEGATIVE F CONT, DRIVEN PUMP)

(19) SENSOR GPPRESSURE

(NEGATIVE F CONT, DRIVE PUMP)

(18) SENSOR GPPRESSURE (DRIVEN PUMP)

(17) SENSOR GPPRESSURE (DRIVE PUMP)

(31) VALVE GPPILOT (WITH SHUTTLE)

(23) SWITCH ASPRESSURE (TRAVEL, LH)

(24) SWITCH ASPRESSURE (TRAVEL, RH)

(2) CONTROL GPJOYSTICK (LH)

(3) CONTROL GPJOYSTICK (RH)

(35) VALVE GPTRAVEL COUNTERBALANCE (LH)

(36) VALVE GPTRAVEL COUNTERBALANCE (RH)

(13) MOTOR GPTRAVEL (RH)

(12) MOTOR GPTRAVEL (LH)

(11) MOTOR GPSWING

(6) CYLINDER GPSTICK

(5) CYLINDER GPBUCKET

(30) VALVE GPMAIN CONTROL

(27) VALVE GPCHECK (OIL COOLER BYPASS)

(8) FILTER GPOIL (HYDRAULIC RETURN)

(9) FILTER GPOIL (HYDRAULIC, CASE DRAIN)

(7) FILTER AND VALVE GPPILOT (HYDRAULIC OIL)

(14) PUMP GPMAIN HYDRAULIC

(1) ACCUMULATOR GPHYDRAULIC (CHARGED)

(10) MANIFOLD GPCONTROL

(37) VALVE GPPRESSURE REDUCING(BOOM PRIORITY)

(32) VALVE GPSHUTTLE

(16) SENSOR GPPRESSURE

(BOOM DOWN CONTROL)

(21) SENSOR GPPRESSURE(SWING CONTROL)

(22) SWITCH ASPRESSURE(IMPLEMENT)

(28) VALVE GPLOAD CONTROL

(BOOM DRIFT REDUCTION)

(26) VALVE GPCHECK

(34) VALVE GPSWING CUSHION

(33) VALVE GPSOLENOID (HEAVY LIFT)

(15) SENSOR GPPRESSURE (BOOM CYLINDER HEAD)

(48) VALVE GPSOLENOID PRESS REDC.(BOOM DOWN)

(45) VALVE GPMAIN CONTROL (HEAVY LIFT) (SMART BOOM)

(42) SENSOR GPPRESSURE

(OVERLOAD WARNING)

(43) VALVE GPLOAD CONTROL

BOOM CYLINDER) (LH)

(44) VALVE GPLOAD CONTROL BOOM CYLINDER) (RH)

(47) VALVE GPSOLENOID (BOOM DOWN ELE. CHECK)

(40) BLOCK GPHYDRAULIC

(25) SWIVEL GP

(29) VALVE GPLOAD CONTROL(STICK DRIFT REDUCTION)

(46) VALVE GPMANUAL (BOOM LOWER)

(4) CYLINDER GPBOOM