CAT 416D, 424D Schematics

Tap Locations

Pressure, Sampling, and Sensor

Tap

Number

Description

Schematic

Location

AA Pilot Pressure Test Port H-7

BB Signal Pressure Test Port C-11

CC Pump Pressure Test Port A-11

Component Locations

Description

Cooler Gp 154-3799 1 C-14

Cover Gp - Inlet 200-0161 43 C-9

Cover Gp - Outlet 6E-4158 2 C-2

Cover Gp - Steer Priority Valve 191-4010 3 H-10

Cylinder Gp - Boom 206-3628 5 D-8

Cylinder Gp - Bucket, Std 206-0514 6 D-5

Cylinder Gp - (ST) Lift

416D BKG 1-Up 206-3549

BKJ 1-1049 206-3549

BFP 5178-Up 206-3549

424D BGP 397-Up 206-3549

BKR 418-Up 206-3549

416D B2D 1-Up 230-0979

BGJ 1050-1140 230-0979

BFP 12900-Up 230-0979

Cylinder Gp - Stabilizer, LS 228-3499 7 I-5

Cylinder Gp - Stabilizer, RS 228-3500 8 I-3

Cylinder Gp - Steer 167-4235 9 F-14

Cylinder Gp - Stick 235-9829 10 D-4

Cylinder Gp - Swing 228-3506 11 D-7

Cylinder Gp - Swing 228-3506 12 D-7

Cylinder Gp - Tilt, ST 206-3553 13 F-12

Filter Gp 210-6243 14 H-15

Manifold - Return 186-3629 19 E-14, C-8

Pump Gp - Metering, HMU 238-8550 15 F-15

Pump Gp - Piston 416D 245-8998

424D 235-4108

Tank Gp - Hydraulic 240-9721 17 B-13

Valve Gp - Control, Backhoe

4 Bank

Valve Gp - Control, Boom 190-3397 21 C-7

Valve Gp - Control, Bucket 190-3400 22 C-5

Valve Gp - Control, Lift 130-6520 23 E-10

Valve Gp - Control, Relief

Stabilizer, 2 Bank

Valve Gp - Control, Stabilizer 192-0827 39 H-6, H-3

Valve Gp - Control, Steer Priority 188-7471 24 D-11

Valve Gp - Control, Steer Priority

2 Bank Loader

Valve Gp - Control, Stick 190-3402 26 C-4

Valve Gp - Control, Swing 166-7950 27 C-7

Valve Gp - Control, Tilt 168-0361 28 F-10

Valve Gp - Pilot, 2 Bank 185-5902 37 G-8

Valve Gp - Reducing, Stabilizer 239-2226 41 F-7

Valve Gp - Relief, Boom 6E-6284 31 C-8

Valve Gp - Relief, Boom 6E-6285 35 C-8

Valve Gp - Relief, Bucket 187-0524 33 C-5

Valve Gp - Relief, Bucket 187-0527 30 C-5

Valve Gp - Relief, Stick 6E-6281 29 C-4

Valve Gp - Relief, Stick 9T-0704 32 C-4

Valve Gp - Relief, Swing 137-9466 34 C-7

Valve Gp - Relief, Tilt 9T-0704 36 H-10

Cylinder Gp - E Stick 191-7725 44 D-3

Cylinder Gp - E Stick Bucket 206-0518 45 D-5

Cylinder Gp - MP Bucket 185-1839 46 H-12

Valve Gp - Control, Aux 124-8818 48 G-10

Valve Gp - Control, Aux 190-3450 52 C-9

Valve Gp - Control, Backhoe

4 Bank With TUV

Valve Gp - Control, Backhoe

5 Bank With TUV

Valve Gp - Control, Backhoe

6 Bank With TUV

Valve Gp - Control, E Stick 190-3450 51 C-2

Valve Gp - Control, Side Shift

5Bank

Valve Gp - Control, Side Shift

6Bank

Valve Gp - Control, Steer Priority

3 Bank Loader

Valve Gp - Pilot, 2 Bank 185-5901 38 G-8

Valve Gp - Relief 9T-0704 58 F-11, H-11

Cylinder Gp - AWD Steer 214-5097 59 F-14

Accumulator Gp - Ride Control 162-3960 60 F-13

Switch As - Pressure 131-9203 61 D-12

Valve Gp - Mounting 416D 243-2266

424D 222-1684

Part

Number

180-8592

185-5898

185-5906 25 D-11

Attachments

203-5489 20 C-6

203-5490 49 C-6

203-5533 50 C-6

180-8593 54 C-6

180-8594 55 C-6

185-5907 56 D-11

All Wheel Steer

Ride Control

Machine Location

16 B-12

62 E-13

Schematic

Location

E-12

C-6

E-7

Valve Group - Stabilizer, 2 Bank (42), Pilot Oil Pressure Test Port (AA)

456

20 22

11 12

RENR3586-03

January 2005

PUMP or MOTOR

VARIABILITY

ONE POSITION

NORMAL POSITION

PRESSURE

FLUID CONDITIONER

SPRING

(ADJUSTABLE)

VALVE ENVELOPES

TWO POSITION

CONTROL VALVES

SHIFTED POSITION

MEASUREMENT

TEMPERATURE

SPRING

LINE RESTRICTION

(VARIABLE)

BASIC COMPONENT SYMBOLS

CONTROL VALVES

PRESSURE

COMPENSATION

VALVES

THREE POSITION

INFINITE POSITION

FLOW

FLUID STORAGE RESERVOIRS

RESTRICTION

BASIC

SYMBOL

AUX.

LINE RESTRICTION

(FIXED)

HYDRAULIC PNEUMATIC

ENERGY TRIANGLES

VALVE PORTS

TWO-WAY

UNIDIRECTIONAL BIDIRECTIONAL

THREE-WAY

CHECK VALVES

SPRING

LOADED

ROTATING SHAFTS

MAIN

2-SECTION PUMP

LINE RESTRICTION

VARIABLE and PRESSURE

COMPENSATED

SHUTTLE PILOT

PUMP: VARIABLE and

PRESSURE COMPENSATED

ATTACHMENT

FOUR-WAY

CONTROLLED

FLUID POWER SYMBOLS

416D and 424D Backhoe Loader Hydraulic System

416D: BKG1-UP BFP1-UP

424D: BGP1-UP BKR1-UP

VENTED

SOLENOID

PRESSURIZED

SOLENOID or MANUAL

SOLENOID

and PILOT

RETURN ABOVE FLUID LEVEL

COMBINATION CONTROLS

SOLENOID and

PILOT or MANUAL

MANUAL CONTROL SYMBOLS

SERVO

RETURN BELOW FLUID LEVEL

THERMAL

DETENT

B2D1-UP BGJ1-UP

PUSH-PULL LEVER PEDALGENERAL MANUAL PUSH BUTTON SPRING

RELEASED PRESSURE

MANUAL SHUTOFF

PILOT CONTROL SYMBOLS

REMOTE SUPPLY PRESSURE

Hydraulic Pump (16), Signal Pressure Test Port (BB)

EXTERNAL RETURN

ACCUMULATORS

SPRING LOADED

HYDRAULIC PUMPS

FIXED

DISPLACEMENT

UNIDIRECTIONAL

BIDIRECTIONAL

INTERNAL RETURN

GAS CHARGED

VARIABLE DISPLACEMENT

NON-COMPENSATED

CROSSING AND JOINING LINES

LINES CROSSING

HYDRAULIC MOTORS

FIXED

DISPLACEMENT

UNIDIRECTIONAL

BIDIRECTIONAL

LINES JOINING

VARIABLE DISPLACEMENT

NON-COMPENSATED

SIMPLIFIED

HYDRAULIC AND PNEUMATIC CYLINDERS

SINGLE ACTING

INFINITE

POSITIONING

FLOW IN ONE

DIRECTION

COMPLETE

INTERNAL PASSAGEWAYS

THREE

POSITION

PARALLEL

FLOW

CROSS

INTERNAL

SUPPLY PRESSURE

DOUBLE ACTING

POSITION

FLOW

TWO

FLOW ALLOWED IN EITHER DIRECTION

Volume 1: Single Tilt Loader with Center Pivot Backhoe

2005 Caterpillar

37 38

Electrical Symbols Table

Transducer

(Fluid)

Pressure Switch

Pressure

Symbol

Electrical Schematic Example

Hydraulic Symbols (Electrical)

Transducer

(Gas / Air)

Pressure Switch

(Adjustable)

Electrical Symbols (Electrical)

Temperature

Symbol

Wire Number Identification Codes

Generator

Temperature Switch

Level

Symbol

Hydraulic Schematic Example

Electric Motor

Electrical Wire

Flow

Symbol

Printed in U.S.A.

20 Page, RBM

Current Standard

Wire Color

325-PK

RENR3586-03 VOL 1

39 40

41 42

14 16

Hydraulic Pump (16), Pump Pressure Test Port (CC)

Harness identification code This example indicates wire135inharness"AG".

Current Standard

Wire

Circuit Number Identification

325-AG135 PK-14

Circuit Identification

95960 61 62

Number

Wire Color

Wire Gauge

Previous Standard

Wire

Wire Color

23 24 25

Machine Component Locations

Circuit Number Identification

325-PK-14

Wire Gauge

(EXAMPLE VALVE)

15 14 13 12 11 10 9 8 7 6 5 4 3 2 1

CYLINDER GP- STABILIZER

228-3500

STEER PRIORITY VALVE GP- RELIEF 9T-0704

OUTLET COVER

191-4010

VALVE GP- CONTROL STABILIZER 192-0827

CYLINDER GP- STABILIZER 228-3499

VALVE GP- CONTROL STABILIZER 192-0827

FILTER GP 210-6243

AUX CONTROL VALVE 124-8818

CYLINDER GP- MP BUCKET 185-1839

DOWN

DOWN UP

VALVE GP- PILOT, 2 BANK 185-5901, LEVER - SWITCH 185-5902, LEVER - STABILIZER

VALVE GP- REDUCING PRESSURE, STABILIZER 239-2226

PUMP GP- METERING HMU 238-8550

CYLINDER GP- STEER 167-4235

CYLINDER GP- STEER, AWD 214-5097

VALVE GP- MOUNTING (416D) - 243-2266

TILT C ONTROL VALVE 168-0361

MANIFOLD GP- RETURN 186-3629

(424D) - 222-1684

ACCUMULATOR GPRIDE CONTROL 162-3960

ACC

CYLINDER GP- TILT 206-3553

VALVE GP- P RELIEF A 9T-0704

LIFT CONTROL VALVE 130-6520

VALVE GP- CONTROL STABILIZER 185-5898, 2 BANK

SWING CYLINDER 228-3506

STICK CYLINDER 235-9829

E STICK CYLINDER 191-7725

CYLINDER GP- (ST) LIFT 206-3549 230-0979

SWITCH AS- PRESSURE

BOOM CYLINDER 206-3628

131-9203

CYLINDER 206-0514, STD BUCKET 206-0518, E STICK BUCKET

INLET COVER 200-0161

RELIEF VALVE 6E-6285

RELIEF VALVE 137-9466

RELIEF VALVE 187-0524

RELIEF VALVE 9T-0704

OUTLET COVER 6E-4158

VALVE GP- CONTROL STEER PRIORITY 188-7471 185-5906, 2 BANK LOADER

PUMP GP- PISTON

185-5907, 3 BANK LOADER (416D) - 245-8998 (424D) - 235-4108

20 Page, Color 2, RBM

COOLER GP-

154-3799

TANK GP- HYDRAULIC 240-9721

AUX CONTROL VALVE 190-3450

VALVE RELIEF 6E-6284

BOOM CONTROL VALVE 190-3397

VALVE GP- CONTROL

SWING 166-7950

RELIEF VALVE 187-0527

BUCKET CONTROL VALVE 190-3400

VALVE GP- CONTROL BACK HOE

180-8592, 4 BANK 180-8593, 5 BANK 180-8594, 6 BANK 203-5489, 4 BANK WITH TUV 203-5490, 5 BANK WITH TUV

203-5533, 6 BANK WITH TUV

RELIEF VALVE 6E-6281

STICK CONTROL VALVE 190-3402

E STICK CONTROL VALVE 190-3450

HYDRAULIC CIRCUIT COLOR DESCRIPTIONS

Main Pump Output

Load Sense Circuit

Supply Line

Drain/ReturnLine

Hand Metering Unit Control Circuit

Lift Cylinder Control Circuit

Auxiliary Control Circuit

Tilt Cylinder Control Circuit

Bucket Cylinder Control Circuit

Boom Cylinder Control Circuit

Swing Cylinder Control Circuit

Bucket / E-Stick Control Circuit

Stabilizer Cylinder Control Circuit

E-Stick Cylinder Control Circuit

LINE PATTERNS

Pressure Line

Pilot / Load Sensing Pressure

Drain / Return Lines

Component Group

Attachment

Air Line

CALLOUTS

Taps (Pressure, Sampling,Sensor) by letter

RENR3586-03 VOL 1

Components by number

THIS SCHEMATIC IS FOR THE 416D and 424D

SINGLE TILT LOADER WITH CENTER PIVOT BACKHOE (VOLUME 1) Part #: 201-6837

Components are shown installed on a fully operable machine with the key and engine off and transmission shifter in neutral.

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