Component Location

101 103 105 109 110 112 113 114 115 118 120 123 124 129 130 135 147 149 150 151 152 154 160 168 169 172 175 179 180 184 189 191

RD RD RD RD RD PU OR RD RD GY YL WH GN BU RD BU PU RD OR GN BU RD PU RD PK RD RD BU GN RD RD WH

Batt + Dome Lamp/ Memory Key Switch Start Relay Timer Relay Main Relay Sw Panel / Radio Horn Cab Lamp Wiper / Washer 12V 7A Converter 1 Seat Heater A/C Cigar Lighter Batt + Valve Cont 12V Out Converter ATT Sol Boom Lamp Quick Coupler Hyd Lock Cancel Sw Lower Washer / Wiper Neutral Start Relay Chassis Lamp Refueling Pump Backup / Monitor Cont Product Link A/C Blower 12V 7A Converter 2 AUX Circuit E/P Cont Timer Relay Out Power Window Ground Circuits

200 201 210 229 235

BK BK BK BK BK

Ground Cab Ground Converter Ground Converter Ground Relay Panel Ground Basic Machine Circuits

304 306 307 308 309 310 320 321 322 323 325 326 329 330 365

WH GN OR YL GY PU RD BR GY WH PK RD YL YL YL

Starting Circuit Neutral Start Circuit Starting Circuit Gov Acutator Alt Regulator Heater Relay Horn Relay Travel Alarm (ATCH) Horn Refueling Power Relay (ATCH) Refueling Switch (ATCH) Key Switch Refueling Power Relay (ATCH) Diode Refueling Stop Switch (NC) (ATCH) Monitoring Circuits

403 405 410 412 430 487 491 492 495 496 C468 E472 E473 E474 E475 E476 H465 H466 H467 H473 H474 H475 H476

GN GY WH BU BU OR PK GY GN WH BU GN GY OR PK PU GN BU WH BR GN BU WH

Service Meter Engine Oil Switch Action Alarm Coolant Level Switch Air Cleaner Switch Hydraulic Oil Filter Switch Hydraulic Oil Temperature Sender Coolant Temperature Sender Fuel Level Sensor Hydraulic Oil Level Switch Engine Oil Level Switch Joystick (ATCH) Joystick (ATCH) Joystick (ATCH) Not Used Not Used Switch Panel Switch Panel Switch Panel Straight Pressure Switch (ATCH) Travel Right Pressure Switch Travel Left Pressure Switch Joystick Pressure Switch Accessory Circuits

Description

Wire Number

Wire Color

A537 A579 A580 A581 A582 A584 A586 A588 C537 C538 C569 E554

PK OR BR GN PU BU OR GN GN OR YL PK

Component Identifiers (CID¹) Module Identifier (MID²) Engine/Pump Controller (MID No. 069) CID

Component

607 615 616 645 646 A623

PK YL BU RD RD BU

Chassis Lamp Relay Cab Lamp Relay Boom Lamp Relay Switch Panel Switch Panel Chassis Lamp Relay Control Circuits

0091

Throttle Position Signal

0096

Fuel Level Sender

0110

Engine Coolant Temperature Sensor

0167

Alternator

0168

Voltage of the Power Supply (Keyswitch)

0190

Speed Sensor

0248

CAT Data Link

763 780 788 A718 A755 A756 A757 A758 A761 A762 A768 A769 A770 F773 F774 K776 M734 M736 M737 M738 M739 M740 M741 M742 T713 T714 T715 T716 877 892 893 F873 F889 K843 K844 K847 K848 K849 K850 K851 K852 K856 K857 K858 K860 K861 K862 K864 K865 K866 K868 K869 K870 K871 K872 K874 K875 K879 954 998 C987 G976 K904 K906 K907 L968 L969 L972 L973 L975 L976 M906 T967

BU PU YL PU PK BU GY BR PU PU BU GY PK OR WH GN BR BU WH OR YL PK GY PU GN BU WH PK YL BR GN YL WH GN GY PU WH YL BR BU GN PU WH YL BU GN GY PK PU WH BR BU GN WH OR BR BU GN GN BR RD BU GN GN BU OR WH BU GN PK GN BU YL

Travel Speed Solenoid Plug Assembly Engine Speed Pickup Heater Control Unit Throttle Position 1 Throttle Position 2 Throttle Position 3 Throttle Position 4 Engine Gov Actuator Engine Speed Pickup Backup EPR Valve Switch Backup EPR Valve Switch Backup Resistor Engine Gov Actuator Engine Gov Actuator Alternator Switch Panel Engine Gov Actuator Flow Limit Solenoid (ATCH) Not Used Flow Limit Solenoid (ATCH) Travel Straight Solenoid Switch Panel Switch Panel Thumb Open Relay (ATCH) Thumb Open Solenoid (ATCH) Thumb Close Relay (ATCH) Thumb Close Solenoid (ATCH) Air Heater Product Link (ATCH) CAT Link + Start Relay to Heater Control Diode Plug Assembly Right Joystick Switch (1) Joystick (ATCH) Right Joystick Switch (2) Joystick (ATCH) Hammer Pressure Switch (ATCH) Stem 2 Status (ATCH) Medium Line Pressure Switch (ATCH) Stem 4 Swing Cancel (ATCH) Stem 1 Extend PRV (ATCH) Stem 2 Extend PRV (ATCH) Stem 3 Control Solenoid (A) (ATCH) Stem 1 Retract PRV (ATCH) Stem 2 Retract PRV (ATCH) Stem 3 Control Solenoid (B) (ATCH) Relief 1 Solenoid (ATCH) Relief 2 Solenoid (ATCH) 1Way/2Way Change Solenoid PRV Ret PRV Ret PRV Ret Not Used Not Used Variable Relief 1 Check Solenoid Variable Relief 2 Check Solenoid Not Used Hammer Solenoid (ATCH) Plug Assembly ATCH V Cont Water Level Separator Sensor Pump Discharge Pressure Sensor 1 Backup Gov Switch Swing Brake Cancel Solenoid PRV Return (1) Backup Gov Switch One Touch Low Idle Switch Fine Swing Control Switch (ATCH) Air Heater Controller Refueling Start Relay (ATCH) Option PWM Sensor (1) Pump Discharge Pressure Sensor 2

0286

Signal for Engine Oil Pressure Decrease

0374

Swing Brake Solenoid Valve

0376

Travel Alarm

0581

Proportional Reducing Valve for the Power Shift Pressure

0586

Engine Speed Dial

0587

Feedback Sensor for the Governor Actuator

0590

Engine Control

0598

Travel Speed Solenoid

0600

Hyrdraulic Oil Temperature Sender

1161

Pump Delivery Pressure Sensor (Drive)

1162

Pump Delivery Pressure Sensor 2 (Idle)

1525

Straight Travel Solenoid

2002

Action Alarm

Valve Control (MID No. 6A) CID

Component

0145

12V DC Power Supply

1522

Check Valve Solenoid 2

1523

Check Valve Solenoid 2

1593

Auxiliary Stem 1 Extend Solenoid Valve

1594

Auxiliary Stem 2 Extend Solenoid Valve

1595

Auxiliary Stem 3 Extend Solenoid Valve

1596

Auxiliary Stem 1 Retract Solenoid Valve

1597

Auxiliary Stem 2 Retract Solenoid Valve

1598

Auxiliary Stem 3 Retract Solenoid Valve

1609

Clench Pressure Sensor

1615

1way/2way Flow Solenoid Valve

1657

Left Joystick Slide Control

1658

Right Joystick Slide Control

1665

Relief 1 Solenoid Valve

1666

Relief 2 Solenoid Valve

¹ The CID is a diagnostic code that indicates which component is faulty. ² The MID is a diagnostic code that indicates which electronic control module diagnosed the fault.

Failure Mode Identifiers (FMI)¹ FMI No.

Failure Description

0

Data valid but above normal operational range.

1

Data valid but below normal operational range.

2

Data erratic, intermittent, or incorrect.

3

Voltage above normal or shorted high.

4

Voltage below normal or shorted low.

5

Current below normal or open circuit.

6

Current above normal or grounded circuit.

7

Mechanical system not responding properly.

8

Abnormal frequency, pulse width, or period.

501 506 508 509 511 512 530 535 575 576 578 586 590 592 A513

GN PU PU WH BR GN OR BU YL PK BU BR GY BU RD

Switch Panel Wiper Control Speaker Left (ATCH) Speaker Left (ATCH) Speaker Right (ATCH) Speaker Right (ATCH) Switch Panel Lower Wiper Switch (ATCH) Lower Wiper Motor (ATCH) Lower Wiper Motor (ATCH) Lower Washer Switch (ATCH) Switch Panel Switch Panel Converter (ATCH) Converter (ATCH)

Component

Description Accessory Circuits Continued

Power Circuits

Seat Heater Switch (ATCH) Wiper Motor Wiper Motor Wiper Motor Wiper Motor Wiper Control Wiper Control Hydraulic Lock Solenoid A/C Photo Sensor A/C Switch Panel 12V 7A Converter A/C Unit Lighting Circuits

Schematic Location A-12 D-1 A-5 C-12 J-12 J-12 G-8 G-10 F-9 D-9 D-2 J-6 D-5 J-11 H-7 J-8 A-2 H-7 A-10 H-10 A-10 G-1 J-2 G-1 D-1 F-1 J-12 J-11 B-12 J-12 E-1 D-3 D-3 D-2 A-3 A-3 J-11 H-11 J-11 J-8 H-11 H-11 J-7 G-11 A-2 A-3 A-2 G-7 J-10 J-8 J-9 J-10 A-7 H-1 C-12 A-6 A-6 F-1 C-12 A-7 A-7 A-4

Actuator- Engine Gov. Alarm- Action Alarm- Travel (ATCH) Alternator Battery Battery (ATCH) Block Breaker- Alternator Control- Engine/Pump Control- Valve (ATCH) Control- Wiper Converter- 12V 7A Converter- Radio Diode- Chassis Lamp Relay Diode- Heater Control Diode- Main Relay Diode- Refueling Power Relay Diode- Start Relay Engine Speed Pickup Fuse Base Heater- Air Ind. Unit Joystick 1 (ATCH) Joystick 2 (ATCH) Meter- Service Monitor Motor- Lower Washer (ATCH) Motor- Lower Wiper (ATCH) Motor- Starter Motor- Washer Motor- Wiper Panel- A/C Switch Panel- Heater Switch Panel- Switch Pump- Refueling (ATCH) Relay- Refueling Start (ATCH) Relay- Boom Lamp Relay- Cab Lamp Relay- Chassis Lamp Relay- Heater Relay- Horn Relay- Hydraulic Lock Solenoid Relay- Main Relay- Neutral Start Relay- Refueling Power (ATCH) Relay- Refueling Start (ATCH) Relay- Refueling Stop (ATCH) Relay- Start Relay- Start Control Relay- Thumb Close (ATCH) Relay- Thumb Open (ATCH) Relay- Timer Resistor- Backup Seat w/Seat Heater (ATCH) Sender- Coolant Temperature Sender- Fuel Level Sender- Hydraulic Oil Temperature Sensor- A/C Photo Sensor- AIH Coolant Temperature Sensor- Pump Discharge Pressure 1 Sensor- Pump Discharge Pressure 2 Sensor- Squeeze Pressure (ATCH)

Machine Location 4-AA, 4-H 20-EE, 20-J 14-X, 14-G 5-EE, 5-K 12-II, 12-H 12-GG, 12-H 13-II, 13-H 13-II, 13-I 13-GG, 13-J 12-GG, 12-J 20-EE, 20-H 16-JJ, 16-G 14-HH, 14-J 13-II, 13-J 13-HH, 13-J 13-HH, 13-K 19-V, 19-H 13-HH, 13-I 8-Z, 8-H 13-II, 13-J 7-EE, 7-L 19-FF, 19-J 19-II, 19-J 19-FF, 19-J 21-FF, 21-I 22-FF, 22-J 5-II, G-5 22-HH, 22-G 4-AA, 4-I 5-II, 5-G 23-FF, 23-L 16-EE, 16-J 16-EE, 16-J 17-EE, 17-J 19-V, 19-G 20-V, 20-H 13-JJ, 13-K 13-JJ, 13-K 13-JJ, 13-K 13-HH, 13-J 13-JJ, 13-J 13-JJ, 13-J 13-II, 13-J 13-JJ, 13-J 19-V, 19-H 20-V, 20-H 20-V, 20-H 13-HH, 13-I 13-II, 13-K 13-HH, 13-I 13-HH, 13-I 13-II, 13-K 13-HH, 13-K 17-GG, 17-J 5-EE, 5-L 14-Y, 14-J 9-W, 9-I 23-FF, 23-J 5-EE, 5-L 6-X, 6-J 7-X, 7-J 15-DD, 15-K

Component Sensor- Water Separator Level (ATCH) Solenoid- 1way/2way Control (ATCH) Solenoid- A/C Clutch Solenoid- Fine Swing (ATCH) Solenoid- Flow Limit (ATCH) Solenoid- Hammer (ATCH) Solenoid- Hydraulic Lock Solenoid- Power Shift Control Solenoid- Quick Coupler (ATCH) Solenoid- Relief 1 (ATCH) Solenoid- Relief 2 (ATCH) Solenoid- Relief Check 1 (ATCH) Solenoid- Relief Check 2 (ATCH) Solenoid- Stem 1 Cont. (A) (ATCH) Solenoid- Stem 1 Cont. (B) (ATCH) Solenoid- Stem 2 Cont. (A) (ATCH) Solenoid- Stem 2 Cont. (B) (ATCH) Solenoid- Stem 3 Cont. (A) (ATCH) Solenoid- Stem 3 Cont. (B) (ATCH) Solenoid- Swing Brake Solenoid- Thumb Close (ATCH) Solenoid- Thumb Open (ATCH) Solenoid- Travel Speed Solenoid- Travel Straight Switch- Air Cleaner Switch- Aux. Hydraulic Pressure (ATCH) Switch- Backup EPR Valve Switch- Backup Gov. Switch- Coolant Level Switch- Disconnect Switch- Engine Oil Switch- Engine Oil Level Switch- Fine Swing Control (ATCH) Switch- Hammer Foot (ATCH) Switch- Hammer Pressue (ATCH) Switch- Hammer Pressure (ATCH) Switch- Hammer Pressure (ATCH) Switch- Horn Switch- Hydraulic Oil Filter Switch- Hydraulic Oil Level Switch- Joystick Pressure Switch- Key Switch- Lower Washer (ATCH) Switch- Lower Wiper (ATCH) Switch- Medium Line Pressure (ATCH) Switch- Neutral Start Limit Switch- One Touch Low Idle Switch- Quick Coupler (ATCH) Switch- Refueling (ATCH) Switch- Refueling Start (ATCH) Switch- Refueling Stop (ATCH) Switch- Seat Heater (ATCH) Switch- Secondary Shutdown Switch- Straight Travel Pressure (ATCH) Switch- Throttle Position Switch- Travel Left Pressure Switch- Travel Right Pressure Switch- Under Window Limit (ATCH) Switch- Window Limit Unit- A/C Unit- Heater (ATCH) Unit- Heater Control

Schematic Location J-12 A-4 B-12 D-11 B-8 H-12 D-12 A-7 A-7 A-4 A-5 A-4 A-5 A-8 A-8 A-8 A-8 A-8 A-9 D-12 A-9 A-9 E-12 D-12 J-11 H-1 G-2 G-2 J-12 G-11 A-12 A-12 D-4 J-3 H-12 A-9 H-1 J-2 A-6 A-6 J-3 G-1 D-3 D-3 J-1 J-2 H-1 E-1 A-5 A-3 A-3 D-3 G-3 H-1 G-1 J-1 J-1 E-1 F-1 F-5 F-5 J-7

Machine Location 9-II, 9-I 15-Z, 15-J 5-EE, 5-J 14-BB, 14-J 5-X, 5-G 13-EE, 13-J 11-CC, 11-H 5-W, 5-J 6-X, 6-K 15-DD, 15-J 15-Z, 15-J 16-DD, 16-J 16-Z, 16-J 9-V, 9-H 9-V, 9-H 9-V, 9-H 9-V, 9-H 8-V, 8-H 8-V, 8-H 11-CC, 11-H 9-V, 9-H 9-V, 9-H 11-CC, 11-H 11-BB, 11-L 11-GG, 11-K 21-HH, 21-G 16-FF, 16-I 16-FF, 16-I 5-HH, 5-G 13-JJ, 13-I 5-BB, 5-I 5-BB, 5-H 19-EE, 19-J 22-JJ, 22-H 13-EE, 13-J 9-V, 9-H 21-HH, 21-G 19-JJ, 19-K 9-V, 9-I 11-Y, 11-J 17-HH, 17-G 19-FF, 19-J 19-FF, 19-J 19-FF, 19-J 21-HH, 21-G 18-JJ, 18-G 19-FF, 19-J 20-EE, 20-I 14-V, 14-L 20-V, 20-I 20-V, 20-I 19-FF, 19-J 18-II, 18-H 21-GG, 21-G 19-FF, 19-J 22-HH, 22-G 22-GG, 22-G 23-FF, 23-H 22-FF, 22-P 15-GG, 15-I 15-GG, 15-I 13-HH, 13-K

Electrical Schematic Symbols And Definitions

RENR7090-02 May 2006

Symbols

T

Pressure Symbol

Temperature Symbol

Level Symbol

Symbols And Definitions Fuse - A component in an electrical circuit that will open the circuit if too much current flows through it. Switch (Normally Open): A switch that will close at a specified point (temp, press, etc.). The circle indicates that the component has screw terminals and a wire can be disconnected from it. Switch (Normally Closed): A switch that will open at a specified point (temp, press, etc.). No circle indicates that the wire cannot be disconnected from the component. Ground (Wired): This indicates that the component is connected to a grounded wire. The grounded wire is fastened to the machine. Ground (Case): This indicates that the component does not have a wire connected to ground. It is grounded by being fastened to the machine. Reed Switch: A switch whose contacts are controlled by a magnet. A magnet closes the contacts of a normally open reed switch; it opens the contacts of a normally closed reed switch.

320C Excavator Electrical System

Sender: A component that is used with a temperature or pressure gauge. The sender measures the temperature or pressure. Its resistance changes to give an indication to the gauge of the temperature or pressure.

T

Relay (Magnetic Switch): A relay is an electrical component that is activated by electricity. It has a coil that makes an electromagnet when current flows through it. The electromagnet can open or close the switch part of the relay.

MAB1-UP PAB1-UP GAC1-UP FBC1-UP EAG1-UP GNG1-UP SBN1-UP HKT1-UP RAW1-UP

Solenoid: A solenoid is an electrical component that is activated by electricity. It has a coil that makes an electromagnet when current flows through it. The electromagnet can open or close a valve or move a piece of metal that can do work. MAGNETIC LATCH SOLENOID - A magnetic latch solenoid is an electrical component that is activated by electricity and held latched by a permanent magnet. It has two coils (latch and unlatch) that make electromagnet when current flows through them. It also has an internal switch that places the latch coil circuit open at the time the coil latches.

Harness And Wire Symbols Wire, Cable, or Harness Assembly Identification Pin

A

Circuit Number Identification

Wire Gauge Plug

2 Ground Connection

1 2

Typical representation of a Deutsch connector. The plug contains all sockets and the receptacle contains all pins.

1 2

2

3

4

5

6

7

8

Resistor, Sender and Solenoid Specifications

9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 Part No.

kk

kk

jj

jj

ii

ii

hh

hh

gg

gg

ff

ff

ee

ee

dd

dd

cc

cc

102-8016

Resistor:

111-9916

Solenoid:

112-0090

Solenoid:

121-1491

Solenoid:

Component Description

Resistance (Ohms)¹

Backup Power Shift Control Stem 1 (A) Stem 1 (B) Stem 2 (A) Stem 2 (B) Stem 3 (A) Stem 3 (B) Relief 1 Relief 2 Hydraulic Lock Swing Brake Travel Speed Travel Straight Thumb Close (ATCH) Thumb Open (ATCH)

47 ± 2

11

Failure mode not identifiable.

12

Bad device or component.

13

Out of calibration.

14

Parameter failures.

bb

bb

152-8346

Solenoid:

15

Parameter failures.

16

Parameter not available.

aa

aa

163-6700

Sender:

Fuel Level

17

Module not responding.

z

z

18

Sensor supply fault.

171-0188

Solenoid:

Flow Limit

19

Condition not met.

y

y

20

Parameter failures.

x

x

w

w

v

v

u

u

t

t

s

s

r

r

q

q

p

p

o

o

n

n

Connector Number

Event Codes Engine/Pump Control Event Code

Condition

17

Coolant Overheat

43

Battery Voltage Too Low

50

Battery Voltage Too High

59

Low Coolant Level

95

Fuel Filter is Clogged

100

Engine Oil Pressure is Low

119

Fuel Level is Low

171

Engine Oil Level is Low

179

Abnormal Battery Charge

232

Water Separator Draining Demand

235

Hydraulic Oil Level is Low

236

Hydraulic Oil Filter is Clogged

237

Overload Warning

272

Air Filter is Clogged

600

Hydraulic Oil Overheat

862

Special Filter is Clogged

863

Automatic Greasing Failure

Related Electrical Service Manuals Title

Form Number

Alternator:

212-8561

SENR2143

Electric Starting Motor:

125-2988

REG00843

Engine/Pump Control:

RENR3814

Tool/Valve Control:

RENR3823

CONN 1 CONN 2 ET CONN CONN 3 CONN 4 CONN 5 CONN 6 CONN 7 CONN 8 CONN 9 CONN 10 CONN 11 CONN 12 CONN 13 CONN 14 CONN 15 CONN 16 CONN 17 CONN 18 CONN 19 CONN 20 CONN 21 CONN 22 CONN 23 CONN 24 CONN 25 CONN 26 CONN 27 CONN 28 CONN 29 CONN 30 CONN 31 CONN 32 CONN 33 CONN 34 CONN 35 CONN 36

D-12 J-11 G-9 G-9 G-8 G-8 G-8 G-7 G-7 E-7 C-6 D-6 J-6 G-5 F-5 F-4 F-4 F-3 H-3 H-3 B-3 B-3 A-3 A-3 C-2 C-2 E-2 F-2 H-2 H-2 H-2 J-2 J-2 J-2 G-1 A-5

15-Z, 15-H 13-II, 13-K 13-II, 13-I 13-II, 13-I 13-II, 13-I 13-HH, 13-I 13-HH, 13-I 13-HH, 13-I 13-HH, 13-I 13-GG, 13-J 9-V, 9-H 17-FF, 17-J 16-II, 16-G 17-HH, 17-G 15-FF, 15-J 15-FF, 15-J 15-FF, 15-J 15-FF, 15-J 18-II, 18-H 16-FF, 16-G 17-W, 17-H 17-W, 17-H 20-W, 20-H 20-W, 20-H 18-CC, 18-I 18-CC, 18-L 19-EE, 19-I 16-EE, 16-I 16-FF, 16-G 16-FF, 16-G 16-FF, 16-G 16-II, 16-G 16-II, 16-G 16-II, 16-G 18-FF, 18-J 14-Y, 14-K

Typical representation of a Sure-Seal connector. The plug and receptacle contain both pins and sockets.

Printed in U.S.A.

Abnormal rate of change.

Machine Location

200-BK-14 Pin or Socket Number

Abnormal update.

Schematic Location

105-9344

Receptacle Single Wire Connector

9

¹The FMI is a diagnostic code that indicates what type of failure has occurred.

AA 1

325-PK-14

10

Connector Location

Component Part Number

Fuse

Wire Color

Socket

© 2006 Caterpillar All Rights Reserved

1

m

m

l

l

k

k j

j i h

i h

g

g

f

f

e

e

d

d

c

c

b

b

a

a 1

2

3

4

5

6

7

8

Circuit Breaker Symbol

Flow Symbol

9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55

Machine Harness Connector And Component Locations

4I-5394

Sender:

11.7 ± 1.2

19.5 ± 2

32.0 ± 3.2

Quick Coupler (ATCH)

32.6 ± 1.6 Empty: 83.5 ± 1.5 Midpoint: 33.8 ± 2.0 Full: 8.0 +1.0 or -0.5 11.5 ± 0.5 20824-25451 @ 0°C (32°F) 6134-7496 @ 25°C (77°F) 3989-4875 @ 35°C (95°F) 2224-2718 @ 50°C (122°F) 973-1189 @ 75° (167°F) 475-522 @ 100°C (212°F) 221-269 @ 125°C (257°F)

Hydraulic Oil Temperature

¹ At room temperature unless otherwise noted.

Off Machine Switch Specification Part No. 154-0498

167-3466

Function Air Cleaner Travel Left Pressure Travel Right Pressure Medium Line Pressure (ATCH) Hammer Pressure (ATCH) Aux. Hydraulic Pressure (ATCH) Straight Travel Pressure (ATCH) Joystick Pressure

Actuate

Deactuate

635 ± 58 mm H2O

490 ± 49 kPa (71.07 ± 7.11 psi)

Contact Position Normally Open

290 kPa MIN (42.06 psi)

Normally Open

30 Page

Wire Color

RENR7090-02

Wire Description Wire Number

T714-BU-18 T716-PK-18 T713-GN-18 T715-WH-18

308-YL 308-YL

308-YL

C987-RD-14 308-YL 151-GN

172-RD-18

2 4 1 3

A B C

A B C

CONN 7

308-YL 954-GN

L35 L21 L19

L19

L24

L2

L2

L23

L23

L17 K849-YL-18 T714-BU-18 T716-PK-18 200-BK-18 200-BK-18 200-BK-18 200-BK-18 235-BK-18

L16

MOTOR

FF (NOTE C)

RD-00 RD-00

235-BK-18 235-BK-18 200-BK-18 200-BK-14 200-BK-14 200-BK 200-BK 200-BK-18 200-BK-14 200-BK-14

8

11 A769-GY-18 E

1 2

Y

200-BK 200-BK 615-YL 615-YL A584-BU-18 200-BK-18

L15

L15

12

M737-WH-18 M738-OR-18 M739-YL-18 M739-YL-18 M739-YL-18 M739-YL-18

L16

CONN 11

ATCH FINE SWING CONT SW 163-6722

152-BU

A768-BU-18 A769-GY-18 147-PU 147-PU K904-GN-18 T967-YL-18 780-PU-18 200-BK-18 M737-WH-18 M738-OR-18 M739-YL-18 235-BK 235-BK 235-BK-18 235-BK-18 235-BK-18 235-BK-18 487-OR-18 491-PK-18 496-WH-18

487-OR-18 491-PK-18 496-WH-18 A768-BU-18 A769-GY-18 147-PU 147-PU K904-GN-18 T967-YL-18 780-PU-18 200-BK-18 M737-WH-18 M738-OR-18 M739-YL-18 235-BK 235-BK 235-BK 235-BK-18 235-BK-18 495-GN-18 325-PK-18 321-BR-18

ATCH LOWER WASHER SW 163-6719

ATCH SEAT HEATER SW 163-6721

ATCH LOWER WIPER SW 163-6718

L3

F

PUMP DISCHARGE PUMP DISCHARGE PRESS. SENSOR1 PRESS. SENSOR2 157-3182 157-3182

10

9

8

7

XX

L43

WW 150-OR 780-PU

150-OR-18 780-PU-18

WIPER MOTOR 189-3424

WW

E

ATCH QUICK COUPLER SW 7N-2353

CONN 27 ABBREV

129-BU 200-BK

403-GN-18 200-BK-18

1 2

F

W. CCW W. CW WIPER CUT INT (6) WA+ ACC WASH LOW INT (3) GND RISE. S STOP REV

WASH ALARM CANCEL IND AEC MODE IND GND

F

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

F

WIPER CONT 155-7042

COLOR RED WHITE ORANGE YELLOW PINK BLACK GRAY PURPLE BROWN GREEN BLUE

RD WH OR YL PK BK GY PU BR GN BU

+ SERVICE METER 6T-7337

F

SYMBOL

DESCRIPTION

BLADE, SPADE, RING, OR SCREW TERMINAL CIGAR LIGHTER 9W-0335

CIRCUIT CONNECTED

D

CIRCUIT NOT CONNECTED

ACTION ALARM 132-1829

ELECTRICAL CONNECTION TO MACHINE STRUCTURE

SWITCH PANEL 163-6701

INTERNAL ELECTRICAL CONNECTION TO SURFACE OF COMPONENT CONNECTOR

495-GN-18 321-BR-18 487-OR-18 491-PK-18 496-WH-18 A768-BU-18 A769-GY-18 147-PU 147-PU K904-GN-18 T967-YL-18 M737-WH-18 M738-OR-18 M739-YL-18 235-BK 780-PU-18 200-BK-18 325-PK-18 325-PK-18 200-BK 200-BK 200-BK 200-BK-10 200-BK 200-BK 616-BU 780-PU-18 322-GY 607-PK 168-RD-10 616-BU 200-BK 322-GY 200-BK 607-PK 200-BK 200-BK-10 325-PK-18 168-RD-10

L1

N

B 1 2

616-BU 200-BK

616-BU 616-BU 200-BK 200-BK

616-BU 200-BK

CONN 26

HYD OIL FILTER SW 173-3518

B

322-GY 200-BK

M

322-GY 322-GY 200-BK 200-BK

1 2

CONN 25

322-GY 200-BK

607-PK 200-BK

ATCH TRAVEL ALARM 3E-7738

SS



HYD OIL TEMP SENDER 4I-5394

HYD OIL LEVEL SW 213-0677

6

FUEL LEVEL SENSOR 163-6700

CONN 21 V

5

B

CHASSIS LAMP 153-2523

L23

238-1498 251-0277 259-4870 170-6959 197-4279 163-6787 170-6828 163-6810 167-3457 227-7221 167-3456 163-6750 116-0227 4I-5396 140-0923 213-0902 167-3473 213-0715 204-1686 116-0096 116-0098 183-0998 183-1061 170-9295 204-1953 204-1954 204-1919 204-1920 204-1923 238-1497

G-5 G-5 G-9 J-2 H-2 F-5 G-1 F-1 J-6 D-5 F-1 C-2 C-2 C-2 C-2 D-7 J-6 E-12 B-3 A-3 A-3 C-6 G-7 F-1 F-1 F-1 E-2 E-2 F-3 H-3

C (NOTE F) (NOTE K) (NOTE D)

(NOTE L) (NOTE G) (NOTE A) (NOTE H) (NOTE H)

204-1685 170-6929 163-6775 163-6752 163-6751 204-1925 170-6929 170-9331

B-12 J-12 J-12 G-8 G-8 B-12 (NOTE C) J-12 (NOTE C) J-12 (NOTE C)

WIRE AS. KK LL MM NN PP RR SS TT

224-2858 163-6755 163-6757 111-4829 213-0873 224-2859 132-1827 170-9478

G-8 G-8 G-8 G-8 H-11 H-11 A-5 H-11

B

THIS SCHEMATIC IS FOR THE 32 0C TIER2 (OSJ) EXCAVATOR. 224-2910 HE05

COMPONENTS ARE SHOWN INSTAL LED ON A FULLY OPERABLE MACHINE WITH THE KEY ON AND ENGINE OFF. UNLESS OTHERWISE SPECIFIED ALL WIRE IS 16 GAGE.

DIODE 197-4385

WIRE PAIRS OF 892-BR & 893-G N MUST BE TWISTED AT LEAST 1 TURN PER 25mm.

325-PK-18

NOTE B: NOT USED ON THIS VEHICLE.

168-RD-18 168-RD-18 168-RD-10 323-WH-10

329-YL-18 329-YL-18 168-RD-18 168-RD-18

329-YL-18

365-YL-18 L976-GN-18

V

CONN 24 W

X

NOTE C: USE WITH COLD WEATHER. 200-BK-18

2 1

CONN 23

V 1 2

V

200-BK-10 323-WH-10

ATCH RELIEF 1 SOL 112-0090 (NOTE K)

NOTE A: USE WITH CAB GUARD LAMP.

L976-GN-18 L976-GN-18

S 1 2

LOC

CABLE AS. AA BB CC DD EE FF GG HH

HEATER AND AIR CONDITIONER CIRCUIT. WIPER/WASHER CIRCUIT.

CONN 22

-

+

ATCH REFUELING PUMP 123-3929

X

X

ATCH REFUELING STOP SW(NC) 9X-4184

3

W

NOTE D: USE WITH 12V 7A X 2 CONVERTER. NOTE E: NOT USE WITH HEATER UNIT. NOTE F: USE WITH SHORT BOOM. NOTE G: USE WITH CONFIG.3. NOTE H: USE WITH CONFIG.15.

V

4

PART NO.

V

V

ATCH SQUEEZE PRESS. SENSOR 157-3182 (NOTE K)

ATCH REFUELING SW 5C-6108

HORN 7Y-3920

VALVE CONTROL CIRCUIT. B

B

365-YL-18 L976-GN-18

ATCH RELIEF CHECK 1 SOL 215-4890 (NOTE K)

M

HORN 7Y-3919

ENGINE PUMP CONTROL CIRCUIT.

168-RD-18

ATCH 1WAY/2WAY CONT SOL 215-4890 (NOTE K)

M

P (NOTE F) R

WIRE GROUP COLOR DESCRIPTIONS

168-RD-18 L976-GN-18

ATCH RELIEF 2 SOL 112-0090 (NOTE K)

ATCH BOOM LAMP 153-2521

WIRES THAT HAVE SYSTEM VOLTAGE WHEN THE KEY SWITCH IS OFF. WIRES THAT HAVE SYSTEM VOLTAGE WHEN THE KEY SWITCH IS ON. VOLTAGE CONVERTER OUTPUT CIRCUIT. STARTING CIRCUIT. GROUND CIRCUIT. STARTING AID CIRCUIT. CAT DATA LINK.

325-PK-18 365-YL-18

ATCH RELIEF CHECK 2 SOL 215-4890 (NOTE K)

ATCH BOOM LAMP 153-2521

616-BU 200-BK B

A B C D E F G H J K L M N P R S T U V W X Y Z JJ UU VV WW XX YY ZZ

N

P (NOTE F) R

L2

L17

S 1 2

S

ATCH WIRE, CABLE, COMPONENT CIRCUIT GROUPING DESIGNATION

HARNESS AS.

K864-PK-18 K870-GN-18

K874-BR-18 235-BK-18

308-YL 235-BK-18 M906-BU-18

K866-WH-18 235-BK-18 S 1 2

1 2

S

A B C

S

B 1 2

CONN 36

K865-PU-18 K870-GN-18

K875-BU-18 235-BK-18

321-BR-18 235-BK-18 B 1 2

B 2 1

1 2

1 2

B

325-PK-18

235-BK-18 495-GN-18

496-WH-18 235-BK-18

491-PK-18 235-BK-18 B

1 2 ATCH QUICK POWER SHIFT COUPLER SOL CONT SOL 152-8346 111-9916

MOTOR

A579-OR A580-BR A581-GN A582-PU 200-BK

L2

K856-PU-18 K857-WH-18 K858-YL-18 K860-BU-18 K861-GN-18 K862-GY-18 K868-BR-18 K869-BU-18

YL-18 BK-18 BR-18

ATCH STEM 1 CONT SOL (A) 111-9916 (NOTE K)

F

ATCH UNDER WINDOW LIMIT SW 129-6466

IDENT

L1

L1

L15

325-PK-18

ATCH STEM 1 CONT SOL (B) 111-9916 (NOTE K)

F

L#

M737-WH-18 M738-OR-18 M739-YL-18 235-BK-18 235-BK-18 235-BK-18 235-BK-18 A768-BU-18 A769-GY-18 147-PU 147-PU K904-GN-18 T967-YL-18 780-PU-18 200-BK-18

BK YL

ATCH STEM 2 CONT SOL (A) 111-9916 (NOTE K)

F

535-BU

F

A/C SW PANEL 157-3210 ATCH HEATER SW PANEL 176-2005

ATCH CAB GUARD LAMP 183-1035 (NOTE A)

Y/W

OPERATOR STATION

L15

BK RD

ATCH STEM 2 CONT SOL (B) 111-9916 (NOTE K)

ATCH CAB LAMP 167-3441

A/C PHOTO SENSOR 167-7083 Y/G

F

W. INT (6) W. INT (3) TRAVEL MODE SW AEC MODE SW ALARM CANCEL SW +B TRAVEL MODE IND 1 TRAVEL MODE IND 2

ATCH CONVERTER 205-4285

RD-18 WH-18

C538-OR-18 C537-GN-18

A586-OR-18 590-GY-18 M734-BR-18 M742-PU-18 M741-GY-18 113-OR-18 H467-WH-18

646-RD-18 645-RD-18

C538-OR-18 C537-GN-18

607-PK-18 535-BU-18 575-YL-18 576-PK-18 200-BK-18 200-BK-18

200-BK-18 200-BK-18

607-PK-18 607-PK-18 578-BU 535-BU-18

607-PK-18 607-PK-18 A537-PK-18 123-WH-18 200-BK-18 200-BK-18

147-PU 200-BK-18 200-BK-18

509-WH-18 508-BU-18 200-BK 512-GN-18 511-BR-18

1 2 3 7 8 4 5 6

F

(NOTE B)

+B GROUND SIGNAL

WH BK

ATCH STEM 3 CONT SOL (A) 111-9916 (NOTE K)

JJ L

615-YL 200-BK

ATCH CAB GUARD LAMP 183-1035 (NOTE A)

CONN 28

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

(NOTE B)

(NOTE B)

F

F

B A B C

L37

GROUND SIGNAL

1 2

ATCH HAMMER PRESS. SW 167-3466 (NOTE H)

ATCH STEM 3 CONT SOL (B) 111-9916 (NOTE K)

JJ L

MONITOR 157-3198 +B GND ACC +12V CDL + CDL LIGHT

1 2 3 4 5 6 7 8

893-GN-18 892-BR-18 607-PK-18

F

615-YL 200-BK

410-WH-18 235-BK-18

L4

103-RD-18 201-BK-18 169-PK-18

RD-18 WH-18

ATCH CAB LAMP 167-3441

H

A579-OR A580-BR A584-BU-18 A586-OR-18 506-PU-18 118-GY 530-OR-18 501-GN-18 590-GY-18 200-BK

L5

JJ L

615-YL 200-BK

F

H 1 2 3 4 5 6 7 8

530-OR-18 H465-GN-18 H466-BU-18 200-BK-18

CAB

201-BK-18 169-PK-18 103-RD 893-GN-18 892-BR-18 607-PK C538-OR-18 C537-GN-18 152-BU 535-BU 200-BK A581-GN A582-PU A580-BR A579-OR A579-OR A580-BR A582-PU A581-GN A584-BU-18 506-PU-18 118-GY 200-BK 410-WH-18 235-BK-18 403-GN-18 200-BK-18 129-BU 200-BK 530-OR-18 590-GY-18 A586-OR-18 501-GN-18 501-GN-18 A586-OR-18 590-GY-18 530-OR-18 646-RD-18 645-RD-18 M734-BR-18 M742-PU-18 113-OR-18 M741-GY-18 H467-WH-18 H466-BU-18 H465-GN-18 200-BK-18

JJ L

L17

B A B C

1 2

A B C

B

YL-18 BK-18 BR-18

ATCH THUMB CLOSE SOL 121-1491 (NOTE H)

1 2 3 4

1 2

L42

200-BK 200-BK 200-BK-18 200-BK 200-BK 200-BK-18 200-BK 200-BK-18 200-BK 200-BK-14 200-BK-14 200-BK 200-BK-18 201-BK-18 235-BK-18 169-PK-18 103-RD 893-GN-18 892-BR-18 607-PK 152-BU 535-BU A584-BU-18 506-PU-18 118-GY 410-WH-18 403-GN-18 129-BU 646-RD-18 645-RD-18 M734-BR-18 M742-PU-18 113-OR-18 M741-GY-18 H467-WH-18 H466-BU-18 H465-GN-18 C538-OR-18 C537-GN-18

F

F

F

L17

235-BK-18 487-OR-18

147-PU 235-BK-18 T967-YL-18

147-PU 235-BK-18 K904-GN-18

A768-BU-18 A769-GY-18

780-PU-18 200-BK-18

B 1 2

1 2

1 2

1 2

K856-PU-18 K868-BR-18

K860-BU-18 K868-BR-18

K857-WH-18 K868-BR-18

K861-GN-18 K868-BR-18 1 2

1 2

1 2

1 2

K858-YL-18 K869-BU-18

K862-GY-18 K869-BU-18

K849-YL-18 235-BK-18

T716-PK-18 200-BK-18

T714-BU-18 200-BK-18 ATCH THUMB OPEN SOL 121-1491 (NOTE H)

ENG SPEED PICKUP 196-7973

11

S

YL-18 BK-18 BR-18

CHASSIS

B 788-YL-18 A762-PU-18

S

F

A584-BU-18

F

L. CHASSIS L. BOOM

(NOTE B)

F

308-YL 308-YL 308-YL 235-BK-18 235-BK-18 K866-WH-18 K865-PU-18 K875-BU-18 K870-GN-18 K870-GN-18 K870-GN-18 K870-GN-18 308-YL M906-BU-18 K874-BR-18 K864-PK-18 235-BK-18 235-BK-18 235-BK-18 235-BK-18

+B GROUND SIGNAL

308-YL F774-WH-18 F773-OR-18 A761-PU-18 189-RD M736-BU-18 200-BK-18

S

+B GROUND SIGNAL

B 6 5 4 3 1 7 2 8

S

S

F

F F

F

SS

ENG

C OFF S ON B ST

K

ATCH FLOW LIMIT SOL 171-0188 (NOTE L)

S

UU

R

326-RD 307-OR 105-RD

615-YL 200-BK

L43

XX

B

A KEY DECEL ACCEL F/B +B ESS GND GND

UU

308-YL

CAB

501-GN-18

CONN 17

L2

B

877-YL-4

ENG GOV ACTUATOR 157-3177

UU 1 2

AIR HEATER 168-5057

235-BK-18 C468-BU-18

1 2

2 1

200-BK-18 200-BK-6 200-BK

B ENG OIL LEVEL SW 213-0677

KEY SW 9G-7641

CONN 35

365-YL-18

GROUND STRAP 132-1806

G

G

E

BACKUP EPR VALVE SW 163-6710

235-BK-18

168-RD-18

405-GY-18

1 2 3 4

1 2

2 1

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

7 9

THROTTLE POS SW 106-0107 COM S1 S2 S3 S4

1 2 3 4 5 6

BACKUP GOV SW 163-6711

A768-BU-18

235-BK-18

ENG OIL SW 5I-8005

E472-GN-18 E473-GY-18 K843-GN-18 K847-PU-18

A755-PK-18 A756-BU-18 A757-GY-18 A758-BR-18 L972-BU-18 F774-WH-18 F773-OR-18 607-PK M736-BU-18 169-PK-18 200-BK-18 235-BK-18

K906-GN-18 A768-BU-18 A769-GY-18 105-RD A537-PK-18 K907-BU-18 326-RD L969-WH-18 L968-OR-18 308-YL A770-PK-18 307-OR

5

235-BK-18 A755-PK-18 A756-BU-18 A757-GY-18 A758-BR-18

K906-GN-18

IND UNIT 163-6702

L. CHASSIS GND

E

168-RD-18 B

235-BK-18 235-BK-18 235-BK-18 235-BK-18 235-BK-18 200-BK-18 200-BK-18 200-BK-18

L39 L35

L20

L11

T713-GN-18

L10 998-BR-18 F889-WH-18

780-PU-18 150-OR-18

308-YL 308-YL 2 1

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

325-PK-18

K858-YL-18 K862-GY-18 K857-WH-18 K861-GN-18 K856-PU-18 K860-BU-18 K869-BU-18 K869-BU-18 K869-BU-18 K869-BU-18 K868-BR-18 K868-BR-18 K868-BR-18 K868-BR-18 K868-BR-18 K868-BR-18

M737-WH-18 M739-YL-18

M738-OR-18 M739-YL-18 (NOTE B)

1 2 3 4 5 6 E

WINDOW LIMIT SW 117-6306

1 2

304-WH-8 101-RD-4 AA

ATCH JOYSTICK 177-7711 (NOTE K) +12V GND PWM+ COMMON SWITCH 1 SWITCH 2

200-BK-18

YY

L37

B S

Y

E472-GN-18 235-BK-18 E473-GY-18 235-BK-18 K843-GN-18 K847-PU-18

F773-OR-18 F774-WH-18

L3

L16

B

MTRBAT

L37

235-BK-18 235-BK-18 235-BK-18 235-BK-18 235-BK-18 235-BK-18 235-BK-18 A718-PU-18 492-GY-18 309-GY-18 K776-GN-18 109-RD-6 403-GN-18 E554-PK-18 304-WH-8 101-RD-4 405-GY-18 C468-BU-18 308-YL F774-WH-18 F773-OR-18 A761-PU-18 189-RD M736-BU-18 877-YL-4 788-YL-18 A762-PU-18 200-BK 200-BK 200-BK-18 200-BK-6

ONE TOUCH LOW IDLE SW 128-2134

E 235-BK-18 L972-BU-18

L23

Y L16

1 2

E554-PK-18 200-BK-18

1 2

G

TO RADIO

L2

B A/C CLUTCH SOL 176-1895 (NOTE E)

L6

F

403-GN-18

A718-PU-18 492-GY-18 235-BK-18 200-BK-18 200-BK-18 309-GY-18 K776-GN-18 109-RD-6 403-GN-18 200-BK-6 200-BK-18 200-BK-18 E554-PK-18 304-WH-8 101-RD-4 235-BK-18 235-BK-18 405-GY-18 C468-BU-18 308-YL F774-WH-18 F773-OR-18 A761-PU-18 189-RD M736-BU-18 200-BK-18 877-YL-4 788-YL-18 A762-PU-18

1 2

ATCH ANTENNA 167-3492

L23

200-BK-6 200-BK-18 200-BK-18

2

10 12 E

L968-OR-18

200-BK-10 168-RD-10

B

K

892-BR-18 893-GN-18 K849-YL-18 K850-BR-18 K851-BU-18 K852-GN-18 130-RD-14 130-RD-14 130-RD-14 130-RD-14 151-GN E472-GN-18 E473-GY-18 E474-OR-18 K843-GN-18 K844-GY-18 K847-PU-18 K848-WH-18 E475-PK-18 E476-PU-18 235-BK-14 235-BK-14 235-BK-14 235-BK-14 308-YL 308-YL 308-YL K856-PU-18 K857-WH-18 K858-YL-18 K860-BU-18 K861-GN-18 K862-GY-18 K868-BR-18 K869-BU-18 K870-GN-18 K864-PK-18 K865-PU-18 K866-WH-18 K874-BR-18 K875-BU-18 M906-BU-18 L25

L31

L32

309-GY-18 K776-GN-18 109-RD-6

E A537-PK-18 200-BK-18

GILDING TERMINAL

L2

L41

L B ALT P RE

L6

L3

L23

L41

3

1 3

L7 ATCH 12V 7A SOCKET 121-0987 (NOTE D)



ALTERNATOR 212-8561 (50A)

L7

L5

200-BK 200-BK 103-RD-18 113-OR-18

E472-GN-18

E475-PK-18

K868-BR-18 K869-BU-18 K870-GN-18

E473-GY-18 E476-PU-18

K850-BR-18

K856-PU-18 K861-GN-18

E474-OR-18

K865-PU-18 K851-BU-18

K857-WH-18 K862-GY-18

M906-BU-18

K864-PK-18 K849-YL-18 K852-GN-18

K860-BU-18 K858-YL-18

K866-WH-18 K874-BR-18 K875-BU-18

151-GN

892-BR-18

893-GN-18

K844-GY-18 K848-WH-18 308-YL

K843-GN-18 K847-PU-18 130-RD-14 235-BK-14

130-RD-14 235-BK-14

K849-YL-18

K

L2

L41

1 E

W. LOW

200-BK-18 200-BK 200-BK 200-BK-14 200-BK 201-BK-18 113-OR-18 200-BK-18 509-WH-18 512-GN-18 607-PK 103-RD 508-PU-18 511-BR-18 C566-PK-18 C560-OR-18

135-BU-14 210-BK-14

PRV RET

12V POWER SUPPLY

PUMP2 NEG CONT PRESS. SENSOR LEFT FOOT PEDAL PUMP1 NFC REDUCE PRV PUMP2 NFC REDUCE PRV

ATT STEM 2 STATUS

PUMP1 NEG CONT PRESS. SENSOR RIGHT JOYSTICK THUMBWHEEL RIGHT FOOT PEDAL PRV RET PRV RET PRV RET PRV RET PRV RET

ATT STEM 1 EXTEND PRV ATT STEM 2 RETRACT PRV ATT STEM 4 EXTEND PRV

SEPARATE LOAD PRESS. SENSOR LEFT JOYSTICK THUMBWHEEL

C569-YL-14 229-BK-14

F

235-BK-18 492-GY-18

L7

L4

F

ATCH 12V 7A SOCKET 121-0987

L2

L38

L33 COOLANT TEMP SENDER 5I-7578

F

L23

A718-PU-18 200-BK-18

B

235-BK-18

F

L23 L24 L25 L38 L31

L32

L33

L41

L25 L24

L41

C

F

S

L38 1 2



L969-WH-18 M736-BU-18

OPERATOR STATION

B

AIH COOLANT TEMP SENSOR 196-7975

L8

A

CAB

ATCH VALVE CONT 157-3200 (NOTE K)

TRAVEL STRAIGHT SOL 121-1491 B 1 2

H ATCH SEAT WITH SEAT HEATER 164-0505

S

2 E

K907-BU-18 A770-PK-18

200-BK 201-BK-18 A584-BU-18 508-PU-18 509-WH-18 511-BR-18 512-GN-18 607-PK-18 607-PK 607-PK 200-BK-14 103-RD 607-PK 615-YL 615-YL 607-PK 103-RD 103-RD 103-RD 103-RD 103-RD 200-BK-14 113-OR-18 113-OR-18 113-OR-18 113-OR-18 K871-WH K872-OR K879-GN 129-BU 307-OR 310-PU 586-BR 147-PU A537-PK-18 578-BU 152-BU 575-YL-18 576-PK-18 123-WH-18 646-RD-18 645-RD-18 M741-GY-18 H465-GN-18 M742-PU-18 H466-BU-18 M734-BR-18 H467-WH-18 403-GN-18 410-WH-18 506-PU-18 118-GY 169-PK-18 893-GN-18 892-BR-18 200-BK-14 535-BU 535-BU 535-BU 535-BU 135-BU-14 210-BK-14 C569-YL-14 229-BK-14 L973-GN 235-BK-18

H473-BR-18

K851-BU-18 K852-GN-18 G976-BU-18 430-BU-18

H474-GN-18 C468-BU-18 405-GY-18 487-OR-18 892-BR-18 1 2 3 4 5 6

1 2 3 4 5 6

1 2 3 4 5 6 VARIABLE RELIEF 2 PRV ATT STEM 3 STATUS

ATT STEM 2 EXTEND PRV ATT STEM 3 RETRACT PRV

OPTION PWM SENSOR (1)

VARIABLE RELIEF 1 PRV ATT STEM 1 STATUS ATT STEM 4 STATUS

SEPARATE VALVE PRV ATT STEM 1 RETRACT PRV ATT STEM 3 EXTEND PRV ATT STEM 4 RETRACT PRV

1WAY/2WAY CHANGE SOL VARIABLE RELIEF 1 CHECK SOL VARIABLE RELIEF 2 CHECK SOL

HYD LOCK CANCEL SW MASK ENABLE

SW RET OPTION SW (2) OPTION SW (1) CAT LINK RS-232 GND

SWITCH RET OPTION SW (4) OPTION SW (3) CAT LINK + RS-232 RX RS-232 TX

SENSOR RET

L3

CONN 12

CONN 1

M740-PK-18 235-BK-18

CONN 10

200-BK

1 2

L25

UU

509-WH-18 512-GN-18 508-PU-18 511-BR-18 200-BK

L973-GN-18 200-BK-18

ATCH FINE SWING SOL 116-3526

235-BK-18 CONSOLE(RH)

607-PK 200-BK-18

169-PK-18 169-PK-18

L5

200-BK 200-BK 200-BK 200-BK 200-BK-18 A584-BU-18 200-BK 615-YL 615-YL 615-YL 615-YL

L17

1 2

A584-BU-18 103-RD 615-YL 508-PU-18 509-WH-18 511-BR-18 512-GN-18 200-BK-14 200-BK-14 200-BK 200-BK 200-BK-18

1 2 3 5 6 7 8 10 4 9

L26 L973-GN-18 200-BK-18

U

S

L23 L24 L25 L38

B S CHASSIS

U

ATCH TOOL SW (3) ATCH TOOL SW (4) LEFT JOYSTICK SW (1) LEFT JOYSTICK SW (2) KEY SW

L24

D B

K849-YL-18

+B GND

L31

L32

L33 UU

L8

CONN 16

CONN 10

B

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54

Z

L29

K849-YL-18

K849-YL-18

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54

L41

L21

200-BK-18 235-BK-18 235-BK-18 235-BK-18 235-BK-18 235-BK-18 235-BK-18 235-BK-14 200-BK-18 235-BK 200-BK-18 200-BK 200-BK 200-BK 235-BK 200-BK-10 235-BK-18 235-BK-18 235-BK-18 235-BK-18 235-BK-14 200-BK-18 235-BK-18

L23

A588-GN 200-BK-18

HYD LOCK SOL 121-1491 B 1 2

L32

K906-GN-18 235-BK-18

SWING BRAKE SOL 121-1491 B 1 2

ATCH STRAIGHT TRAVEL PRESS. SW 167-3466

1 2

E

169-PK-18

F

200-BK A718-PU-18 492-GY-18 309-GY-18 K776-GN-18 109-RD-6 403-GN-18 E554-PK-18 304-WH-8 101-RD-4 405-GY-18 C468-BU-18 308-YL F774-WH-18 F773-OR-18 A761-PU-18 189-RD M736-BU-18 877-YL-4 788-YL-18 A762-PU-18 235-BK-18 235-BK-18 200-BK 200-BK 200-BK 235-BK 200-BK-10 616-BU 322-GY 607-PK 495-GN-18 321-BR-18 487-OR-18 491-PK-18 496-WH-18 A768-BU-18 A769-GY-18 147-PU 147-PU K904-GN-18 T967-YL-18 M737-WH-18 M738-OR-18 M739-YL-18 780-PU-18 168-RD-10

30 Page, Color 2

RENR7090-02

763-BU-18 235-BK-18

235-BK-14 235-BK-18 235-BK-18 235-BK-18 235-BK-18 K843-GN-18 K844-GY-18 K847-PU-18 K848-WH-18 E472-GN-18 E473-GY-18 E474-OR-18 E475-PK-18 E476-PU-18 130-RD-14 151-GN 308-YL

A

124-GN-14 200-BK-14 175-RD-14 E554-PK-18 607-PK 200-BK-14

A

F ATCH SPEAKER (R) 7Y-5505 F 511-BR-18 512-GN-18

DOME LAMP 176-1986

CONN 10

K849-YL-18

ATCH TOOL SW (1) ATCH TOOL SW (2) RIGHT JOYSTICK SW (1) RIGHT JOYSTICK SW (2) +B GND

L25 L23

235-BK-18

A H473-BR-18 235-BK-18

E

SECONDARY SHUTDOWN SW 4D-1836

200-BK-14 200-BK 200-BK 200-BK-18 200-BK 200-BK

403-GN-18 410-WH-18 506-PU-18 578-BU 535-BU 152-BU 129-BU 645-RD-18 892-BR-18 893-GN-18 103-RD 235-BK-18 A

CONN 15

CAB

892-BR-18 893-GN-18 K849-YL-18 K850-BR-18 K851-BU-18 K852-GN-18

235-BK 235-BK 235-BK 235-BK 780-PU-18 M740-PK-18 763-BU-18 M737-WH-18 M738-OR-18 788-YL-18 321-BR-18 M739-YL-18 A762-PU-18 492-GY-18 495-GN-18 403-GN-18 A761-PU-18 K904-GN-18 491-PK-18 T967-YL-18 496-WH-18 C468-BU-18 405-GY-18 487-OR-18 K851-BU-18 K851-BU-18 K851-BU-18 K849-YL-18 K850-BR-18 K852-GN-18 K852-GN-18 K852-GN-18 K852-GN-18 L973-GN-18 893-GN-18 892-BR-18 K907-BU-18 L969-WH-18 H466-BU-18 H467-WH-18 L968-OR-18 410-WH-18 H465-GN-18 G976-BU-18 M736-BU-18 M736-BU-18 L975-PK-18 K852-GN-18 K851-BU-18 K849-YL-18 A755-PK-18 A756-BU-18 L972-BU-18 M742-PU-18 A757-GY-18 A758-BR-18 M734-BR-18 M741-GY-18 308-YL H476-WH-18 H475-BU-18 H474-GN-18 184-RD 184-RD 184-RD 184-RD 430-BU-18 412-BU-18 H473-BR-18 893-GN-18 892-BR-18

L31

L33

L36

K849-YL-18 K849-YL-18 K849-YL-18 K849-YL-18 H476-WH-18 H475-BU-18 412-BU-18 496-WH-18 893-GN-18

K850-BR-18 A757-GY-18 A758-BR-18 M734-BR-18 M741-GY-18 308-YL

A755-PK-18 A756-BU-18 L972-BU-18 M742-PU-18 184-RD 235-BK

L975-PK-18

184-RD 235-BK

M736-BU-18

M736-BU-18 T967-YL-18

491-PK-18

403-GN-18 A761-PU-18 K904-GN-18

492-GY-18 495-GN-18

410-WH-18 H465-GN-18 A762-PU-18 780-PU-18

L968-OR-18 M739-YL-18

321-BR-18 H466-BU-18 H467-WH-18 788-YL-18

L973-GN-18 L969-WH-18 M737-WH-18 M738-OR-18

K907-BU-18

M740-PK-18 763-BU-18

K849-YL-18 L38

L27

L973-GN-18 K906-GN-18 A588-GN 763-BU-18 M740-PK-18 200-BK-18 200-BK-18 235-BK-18 235-BK-18 235-BK-18 235-BK-18 200-BK-18 200-BK-18 235-BK-14 235-BK-18 235-BK-18 235-BK-18 235-BK 235-BK-18 235-BK-18 403-GN-18 403-GN-18 403-GN-18 403-GN-18 403-GN-18 403-GN-18 235-BK-18 200-BK 788-YL-18 A762-PU-18 492-GY-18 A761-PU-18 C468-BU-18 405-GY-18 101-RD-4 877-YL-4 109-RD-6 304-WH-8 189-RD K776-GN-18 A718-PU-18 309-GY-18 F774-WH-18 F773-OR-18 E554-PK-18 308-YL M736-BU-18 M737-WH-18 M738-OR-18 M739-YL-18 495-GN-18 K904-GN-18 491-PK-18 T967-YL-18 496-WH-18 487-OR-18 321-BR-18 616-BU 322-GY 607-PK A768-BU-18 A769-GY-18 147-PU 147-PU 147-PU 147-PU 147-PU 147-PU 780-PU-18 780-PU-18 780-PU-18 780-PU-18 168-RD-10

L26

780-PU-18 321-BR-18 235-BK M740-PK-18 763-BU-18 M737-WH-18 M738-OR-18 788-YL-18 M739-YL-18 A762-PU-18 492-GY-18 495-GN-18 A761-PU-18 K904-GN-18 491-PK-18 T967-YL-18 496-WH-18 C468-BU-18 405-GY-18 487-OR-18 403-GN-18 403-GN-18 403-GN-18 403-GN-18 147-PU 147-PU 235-BK-18 235-BK-18 235-BK-14 K906-GN-18 A588-GN 200-BK 235-BK-18 235-BK-18 101-RD-4 877-YL-4 109-RD-6 304-WH-8 189-RD K776-GN-18 A718-PU-18 309-GY-18 616-BU 322-GY 607-PK A768-BU-18 A769-GY-18 F774-WH-18 F773-OR-18 E554-PK-18 168-RD-10 780-PU-18 L973-GN-18 M736-BU-18 308-YL 308-YL 308-YL 308-YL 308-YL 308-YL M736-BU-18 M736-BU-18 L973-GN-18 893-GN-18 893-GN-18 892-BR-18 892-BR-18 412-BU-18 430-BU-18 L975-PK-18 184-RD H474-GN-18 H475-BU-18 H476-WH-18 K851-BU-18 K849-YL-18 K852-GN-18 L972-BU-18 A755-PK-18 A756-BU-18 A757-GY-18 A758-BR-18 K907-BU-18 L969-WH-18 L968-OR-18 410-WH-18 M741-GY-18 H465-GN-18 M742-PU-18 H466-BU-18 M734-BR-18 H467-WH-18 G976-BU-18 H473-BR-18 L21

E

ATCH AUX HYD PRESS. SW 167-3466

1 2

CONN 33

A

ZZ

ZZ

(NOTE B)

E E

1 2 3 4 5 6

CONN 30

L42

ATCH SPEAKER (L) 7Y-5505 F 508-PU-18 509-WH-18

Z

L36

TRAVEL SPEED SOL 121-1491 B 1 2

1 2 3 4 5 6

L6

L27

L23

L6

103-RD 200-BK

L29 L32

R B R/L G BR B

A/C UNIT 161-3779 ATCH HEATER UNIT 185-8291

ENG/PUMP CONT 157-3165

L26

A

YY

235-BK-18

A K852-GN-18 235-BK-18

A582-PU A581-GN

L18 L39

FUEL SECONDARY FILTER PLUGGED SPECIAL FILTER PLUGGED TRAVEL STRAIGHT PRESS SW

ATCH STEM3 SWING CANCEL ATCH STEM4 SWING CANCEL WATER SEPARATOR LEVEL SW AIR CLEANER PLUGGED

FUEL PRIMARY FILTER PLUGGED TRAVEL RIGHT PRESS SW ENG OIL LEVEL SW ENG OIL PRESS SW CAPSULE FILTER PLUGGED CAT DATA LINK (-)

ATCH STEM1 SWING CANCEL JOYSTICK PRESS SW TRAVEL LEFT PRESS SW COOLANT LEVEL SW HYD OIL LEVEL SW CAT DATA LINK (+)

OVER LOAD ALARM CANCEL SW CREEPER TRAVEL FUNCTION SW ATCH STEM2 SWING CANCEL THROTTLE POSITION 3 THROTTLE POSITION 4 TRAVEL MODE SW TRAVEL ALARM CANCEL SW KEY SW ON

AIR HEATER CONTROLLER AUTO LUB FAILURE SWITCH RETURN OPTION SW OPTION SW THROTTLE POSITION 1 THROTTLE POSITION 2 ONE TOUCH LOW IDLE SW AEC MODE SW +B GND

L18 L39

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54

+B GND

+12V SUPPLY

GOVERNOR COMMAND PUMP DISCHARGE(2) PRESS SENSOR O.L.W.D. PRESS SENSOR BACKUP SW OPTION PWM IN (1)

HYD OIL TEMP SENSOR SENSOR RET

TRAVEL STRAIGHT SOL TRAVEL SPEED CHANGE SOL

L18 L39

L38

B

L27

B

892-BR-18 893-GN-18 K906-GN-18 A768-BU-18 A769-GY-18 308-YL K907-BU-18 L969-WH-18 L968-OR-18 410-WH-18 506-PU-18 578-BU 403-GN-18 310-PU 586-BR-18

ZZ

L12

A

ATCH HAMMER PRESS. SW 167-3466 (NOTE J)

E

UU A

1 2

CONN 14

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54

COOLANT TEMP SENSOR FUEL LEVEL ANALOG SENSOR RETURN

L29 L21

L27

L19

L19

998-BR-18

CONN 19

&211 

F

ALTERNATOR R TERM. GOVERNOR FEEDBACK PUMP DISCHARGE(1) PRESS SENSOR

L18 L38

PRV RETURN (1) PRV RETURN (2) PRV RETURN (3) PRV RETURN (4) FAULT ALARM TRAVEL ALARM CANCEL IND SPEED SENSOR (+) OPTION VOLTAGE SW (1)

L28

L18 L38

SWING BRAKE CANCEL SOL HEATER RELAY/STARTER RELAY FREE SWING SW POWER SHIFT CONTROL PRV FLOW LIMIT PRESS PRV PRIMARY NFC PRESS PRV FAN MOTOR CONTROL PRV OPTION CONTROL PRV OPTION CONTROL PRV TRAVEL ALARM AEC MODE IND TRAVEL MODE IND SPEED SENSOR (-) FINE SWING SW

L28

L18

506-PU-18 578-BU 200-BK 235-BK-18 235-BK-18 412-BU-18 430-BU-18 G976-BU-18 147-PU 235-BK-18 403-GN-18 308-YL 892-BR-18 893-GN-18 172-RD-18 172-RD-18 235-BK-14 168-RD-10 101-RD-4 877-YL-4 109-RD-6 304-WH-8 189-RD A588-GN L975-PK-18 184-RD K776-GN-18 A718-PU-18 403-GN-18 309-GY-18 616-BU 322-GY 607-PK 147-PU 893-GN-18 893-GN-18 893-GN-18 893-GN-18 893-GN-18 893-GN-18 892-BR-18 892-BR-18 892-BR-18 892-BR-18 892-BR-18 892-BR-18 892-BR-18 893-GN-18 H474-GN-18 H475-BU-18 H476-WH-18 K851-BU-18 K849-YL-18 K852-GN-18 L972-BU-18 M736-BU-18 M736-BU-18 M736-BU-18 M736-BU-18 M736-BU-18 K906-GN-18 A768-BU-18 A769-GY-18 308-YL L973-GN-18 L973-GN-18 L973-GN-18 L973-GN-18 F774-WH-18 F773-OR-18 A755-PK-18 A756-BU-18 A757-GY-18 A758-BR-18 K907-BU-18 L969-WH-18 L968-OR-18 410-WH-18 M741-GY-18 H465-GN-18 M742-PU-18 H466-BU-18 M734-BR-18 H467-WH-18 403-GN-18 E554-PK-18 780-PU-18 H473-BR-18 235-BK-18 578-BU 506-PU-18

L28

L39

L29

CONN 6

L35

UU

B

L21

235-BK-14 309-GY-18 616-BU 322-GY 607-PK 893-GN-18 892-BR-18 189-RD A588-GN 147-PU

L975-PK-18 184-RD K776-GN-18 A718-PU-18 403-GN-18

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

A B C

CONN 9

L18

L21

VV

Z

L19

L21

S

B

L39

L21

B

VV

L38

L29

L38

L40

304-WH-8

1 2 3 4 5 6

L29

B

BLOCK 121-1023

CONN 5

L29

B

C

C

B

L28

L19

CONN 4

K849-YL-18

L18

NN

A

L40 L34

L40

954-GN

L28 L34

C

168-RD-10

A

B CHASSIS

C

1 2 3 4

CONN 3

C

C

DD 877-YL-4 KK 101-RD-6 EE 101-RD-4 LL 109-RD-6 MM 109-RD-8

118-GY 150-OR-18 191-WH-14 A588-GN

175-RD-14 120-YL 124-GN-14 179-BU 307-OR 147-PU 607-PK 103-RD 169-PK-18 113-OR-18 646-RD-18 C

&211 

GROUND STRAP 167-3583

HH (NOTE C)

&211 

CC

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

1 2 3 4 5 6

109-RD-6

ALT BREAKER 171-2208

DISCONNECT SW. 7N-0718 7N-0719(NOTE C)

172-RD-18 235-BK-18 308-YL 403-GN-18 893-GN-18 892-BR-18

109-RD-6

60A

START RELAY 125-1302

L9

A

1 2 3 4 5 6

M736-BU-18 169-PK-18 K907-BU-18 A770-PK-18 L969-WH-18 235-BK-18 L968-OR-18 F774-WH-18 F773-OR-18 K906-GN-18 A768-BU-18 235-BK-18 A769-GY-18 308-YL 326-RD 307-OR 105-RD A755-PK-18 A756-BU-18 A757-GY-18 A758-BR-18 235-BK-18 200-BK-18 607-PK L972-BU-18 E472-GN-18 E473-GY-18 K843-GN-18 K847-PU-18 235-BK-18 235-BK-18 235-BK-18 235-BK-18 235-BK-18 200-BK-18 A537-PK-18

NN

E472-GN-18 235-BK-18 E475-PK-18

L22

E472-GN-18 235-BK-18 E476-PU-18

150-OR-18 780-PU-18

MM

L9

A

K849-YL-18 235-BK-18

E

L12

PLUG AS. 186-4574

ATCH MEDIUM LINE PRESS. SW 167-3466

A

CONN 34

(NOTE B)

CONN 29

1 2

235-BK-18

T715-WH-18

L42

C

K871-WH-18 K872-OR-18 K879-GN-18 L973-GN-18 780-PU-18 326-RD H473-BR-18 235-BK-18 K851-BU-18

T713-GN-18 T715-WH-18

L42

1 2

306-GN F873-YL

NEUTRAL START LIMIT SW 163-6785

RD-18 WH-18 BK-18

A B C

L22 576-PK-18 535-BU 575-YL-18 615-YL 200-BK-14 200-BK-14 607-PK 103-RD 113-OR-18 893-GN-18 129-BU 892-BR-18 M734-BR-18 645-RD-18 M741-GY-18 H465-GN-18 M742-PU-18 403-GN-18 410-WH-18 H466-BU-18 H467-WH-18 646-RD-18 506-PU-18 118-GY 169-PK-18 169-PK-18 169-PK-18 169-PK-18 578-BU 152-BU 135-BU 210-BK C569-YL 229-BK 147-PU 123-WH-18 307-OR 307-OR 307-OR 307-OR 310-PU 586-BR-18 A537-PK-18 L973-GN-18 191-WH-14 A588-GN K871-WH-18 K872-OR-18 K879-GN-18 235-BK-18 200-BK-14 200-BK-14 124-GN-14 175-RD-14 E554-PK-18 607-PK

K851-BU-18 235-BK-18

J

235-BK-18

A

576-PK-18 535-BU 575-YL-18

L39

TRAVEL RIGHT PRESS. SW 167-3466

1 2

320-RD-18 200-BK-18

200-BK-18 H475-BU-18 H474-GN-18 K849-YL-18 K852-GN-18 H473-BR-18 K851-BU-18 235-BK-18

L22 L12

235-BK-18

A

A

L11

TRAVEL LEFT PRESS. SW 167-3466

1 2

H474-GN-18 235-BK-18

D

154-RD 151-GN 189-RD

L10

308-YL 308-YL

C

&211 

G976-BU-18 147-PU 506-PU-18 578-BU 412-BU-18 200-BK 200-BK 200-BK-18 200-BK-18 235-BK-18 235-BK-18 235-BK-18 235-BK-18 430-BU-18 235-BK-18

101-RD-6

LL

K849-YL-18

STARTER MOTOR 125-2988

L39 L18

L11 L10

ATCH LOWER WIPER MOTOR 167-7079

+ S +1 MOTOR -

A H475-BU-18 235-BK-18

CONN 32

JOYSTICK PRESS. SW 167-3466

1 2

3 1 4 2

A

HORN SW 128-2134

200-BK-18 320-RD-18

2 1

576-PK-18 535-BU 575-YL-18 200-BK-18

ATCH JOYSTICK 177-7712 (NOTE K) +12V GND PWM+ COMMON SWITCH 1 SWITCH 2

1 2 3 4 5 6

D

D

A H476-WH-18 235-BK-18

L8 L6

DIODE 121-1022

H465-GN-18 H466-BU-18 H467-WH-18 F889-WH-18

ATCH HAMMER FOOT SW 138-4653 (NOTE G)

1 2

308-YL 954-GN

E472-GN-18 235-BK-18 E474-OR-18 235-BK-18 K844-GY-18 K848-WH-18

CONN 33

A

Z

L8 L6

306-GN F873-YL

L12

E554-PK-18 H474-GN-18 H475-BU-18 H476-WH-18 K849-YL-18 K852-GN-18 L972-BU-18 M736-BU-18 F774-WH-18 F773-OR-18 A755-PK-18 A756-BU-18 A757-GY-18 A758-BR-18 M741-GY-18 M742-PU-18 M734-BR-18

607-PK-18 607-PK-18 L973-GN

307-OR 154-RD

TT

954-GN

E

L13 L22 L12

101-RD-6 101-RD-6

200-BK-18 306-GN 306-GN

169-PK-18 169-PK-18 A770-PK-18 308-YL-18 308-YL-18 A718-PU-18 L975-PK-18 310-PU-18 330-YL

PP KK

RR 112-PU-6

200-BK-18

310-PU-18 200-BK-18

308-YL 308-YL 308-YL 308-YL-18

308-YL-18

KEY SW.(ON) TEMP. INDICATOR RELAY REGULATOR CHECK TERM. GND KEY SW.(START)

1 2

C

109-RD-8

A

L36

HEATER CONT DIODE 121-1022

L22

304-WH-8

G

L36

101-RD-4

877-YL-4

330-YL F873-YL F873-YL

L13

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54

6 5 4 CONN 34 3 2 1 235-BK-18 D S 235-BK-18 235-BK-18 6 5 235-BK-18 K848-WH-18 4 K844-GY-18 3 2 E474-OR-18 E472-GN-18 1 L13

780-PU-18 150-OR-18

101-RD-6

E474-OR-18 K844-GY-18 K848-WH-18 235-BK-18 E472-GN-18 E472-GN-18 E472-GN-18 E472-GN-18 E472-GN-18 235-BK-18 E475-PK-18 235-BK-18 E476-PU-18 E472-GN-18 K847-PU-18 K843-GN-18 E473-GY-18

H474-GN-18 H475-BU-18 H476-WH-18 K849-YL-18 K852-GN-18 L972-BU-18 M736-BU-18 K906-GN-18 A768-BU-18 A769-GY-18 308-YL F774-WH-18 F773-OR-18 A755-PK-18 A756-BU-18 A757-GY-18 A758-BR-18 K907-BU-18 L969-WH-18 L968-OR-18 410-WH-18 506-PU-18 578-BU M741-GY-18 H465-GN-18 M742-PU-18 H466-BU-18 M734-BR-18 H467-WH-18 403-GN-18 893-GN-18 892-BR-18 E554-PK-18 L973-GN-18 780-PU-18 235-BK-18 H473-BR-18 K851-BU-18

UU

CHASSIS

2 1

101-RD-6

L35

L35

CONSOLE(LH)

235-BK-18

L43

101-RD-6

12V 7A X 2 (NOTE D)

L11

200-BK-14 607-PK 200-BK-14 307-OR 310-PU 576-PK-18 147-PU 123-WH-18 135-BU 210-BK

112-PU-6

135-BU 210-BK

306-GN

ATCH PRODUCT LINK

200-BK-18 235-BK-18 K849-YL-18 954-GN

112-PU-6

120-YL 120-YL 200-BK

L19

200-BK-18 200-BK-18

C

112-PU-6

T

L21

320-RD-18 A770-PK-18 645-RD-18 615-YL 189-RD 152-BU 105-RD 129-BU 123-WH-18 154-RD 308-YL 151-GN

954-GN 200-BK-18

K849-YL-18 235-BK-18

NEUTRAL START RELAY 161-3128 200-BK-18

C

200-BK-18 200-BK-18 308-YL 308-YL 308-YL-18 308-YL 169-PK-18 169-PK-18 A770-PK-18 A718-PU-18 L975-PK-18 200-BK-18 330-YL 306-GN 306-GN

1 2 3 4 5 6

ATCH 12V 7A CONVERTER 167-3467 24V MEMORY 24V IN GND 12V MEMORY 12V OUT GND

607-PK-18 607-PK-18 586-BR 147-PU

189-RD 151-GN

Z

200-BK-18 200-BK-18 200-BK-18 308-YL 308-YL-18 169-PK-18 330-YL 330-YL 306-GN 308-YL 169-PK-18 A770-PK-18 308-YL A718-PU-18 L975-PK-18

RELAY PANEL

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

1 2

1 2

RR

112-PU-6 101-RD-6 101-RD-6

C569-YL 229-BK

L20

UU A PLATFORM

200-BK-18 K906-GN-18 A768-BU-18 A769-GY-18 607-PK M736-BU-18 105-RD A755-PK-18 A756-BU-18 A757-GY-18 A758-BR-18 L972-BU-18 K907-BU-18 326-RD L969-WH-18 L968-OR-18 308-YL 308-YL 308-YL 998-BR-18 F889-WH-18 F774-WH-18 F773-OR-18 A770-PK-18 150-OR-18 780-PU-18 235-BK-18 A537-PK-18 307-OR 169-PK-18 169-PK-18 307-OR A537-PK-18 147-PU 615-YL 607-PK 103-RD 113-OR-18 893-GN-18 129-BU 892-BR-18 M734-BR-18 645-RD-18 M741-GY-18 H465-GN-18 M742-PU-18 403-GN-18 410-WH-18 H466-BU-18 H467-WH-18 646-RD-18 506-PU-18 169-PK-18 578-BU 152-BU 135-BU 210-BK C569-YL 229-BK 123-WH-18 307-OR 310-PU 586-BR-18 118-GY 200-BK-14 200-BK-14 124-GN-14 175-RD-14 E554-PK-18 607-PK 200-BK-14 200-BK-14 L973-GN-18 191-WH-14 A588-GN K871-WH-18 K872-OR-18 K879-GN-18 235-BK-18

C569-YL 229-BK L973-GN-18 K871-WH-18 K872-OR-18 K879-GN-18 191-WH-14 A588-GN

A588-GN A588-GN

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

147-PU 200-BK-18 200-BK-18

C

180-GN

C

179-BU 179-BU 200-BK

T

310-PU-18 310-PU-18 200-BK-18 200-BK-18

1 2 3 4 5 6

T

L20

1 OPERATOR STATION

GROUND STRAP 7G-1060

&211 

HYD LOCK SOL RELAY 161-3128 200-BK-18

AUX CKT

CONN 13

ATCH 12V 7A CONVERTER 167-3467 24V MEMORY 24V IN GND 12V MEMORY 12V OUT GND

607-PK-18 607-PK-18 K872-OR K879-GN

114-RD

12V 7A

K871-WH 200-BK-18 200-BK-18

322-GY

CONN 13

H465-GN-18 M742-PU-18 586-BR-18 113-OR-18 575-YL-18 A537-PK-18 H466-BU-18 H467-WH-18 615-YL 646-RD-18 M734-BR-18 118-GY 169-PK-18 M741-GY-18

C ATCH HAMMER PRESS. SW 167-3466 ATCH (NOTE G) HAMMER SOL 121-6303 (NOTE G)

C

H476-WH-18 235-BK-18 320-RD-18 154-RD 151-GN 189-RD 200-BK-18 H475-BU-18 H474-GN-18 K849-YL-18 K852-GN-18 K851-BU-18 H473-BR-18 235-BK-18 200-BK-18

2

L14

L14 L13 L22 L12 L35 L39

&211 

320-RD-18

C

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18

H

C

135-BU 210-BK

3 L14 L13 L22 L12 L35 L39

200-BK-18 200-BK-14 200-BK-14 200-BK-18 200-BK-18 200-BK-18 200-BK-14 200-BK-14 200-BK 200-BK 200-BK 200-BK 607-PK 124-GN-14 175-RD-14 320-RD-18 154-RD 151-GN 189-RD 105-RD A770-PK-18 103-RD 113-OR-18 129-BU 645-RD-18 646-RD-18 118-GY 152-BU 147-PU 123-WH-18 169-PK-18 307-OR 615-YL 607-PK 607-PK 191-WH-14 A588-GN 135-BU 210-BK C569-YL 229-BK 150-OR-18 308-YL 308-YL E554-PK-18 H475-BU-18 H474-GN-18 H476-WH-18 K849-YL-18 K852-GN-18 K906-GN-18 A768-BU-18 A769-GY-18 M736-BU-18 A755-PK-18 A756-BU-18 A757-GY-18 A758-BR-18 L972-BU-18 K907-BU-18 326-RD L969-WH-18 L968-OR-18 F774-WH-18 F773-OR-18 893-GN-18 892-BR-18 M734-BR-18 M741-GY-18 H465-GN-18 M742-PU-18 403-GN-18 410-WH-18 H466-BU-18 H467-WH-18 998-BR-18 F889-WH-18 506-PU-18 578-BU 310-PU 586-BR-18 L973-GN-18 780-PU-18 K871-WH-18 K872-OR-18 K879-GN-18 H473-BR-18 K851-BU-18 235-BK-18 235-BK-18 235-BK-18 235-BK-18 235-BK-18 235-BK-18

135-BU 210-BK C569-YL 229-BK 200-BK 200-BK 179-BU 120-YL 120-YL 179-BU 320-RD-18 A770-PK-18 645-RD-18 615-YL 607-PK 607-PK 607-PK 607-PK 189-RD 169-PK-18 105-RD 646-RD-18 123-WH-18 175-RD-14 103-RD 152-BU 118-GY 124-GN-14 129-BU 147-PU 113-OR-18 154-RD 308-YL 151-GN 307-OR 191-WH-14 A588-GN 150-OR-18

607-PK-18 607-PK-18 147-PU

HORN RELAY 161-3128

A/C SW PANEL/RADIO WIPER/WASHER LOWER WIPER/WASHER BACKUP/MONITOR CONT CIGAR LIGHTER CHASSIS LAMP SEAT HEATER 12V 7A CONVERTER 1 12V 7A CONVERTER 2 ATT SOL QUICK COUPLER POWER WINDOW ALT REGULATOR

124-GN-14 113-OR-18 118-GY 152-BU 169-PK-18 129-BU 160-PU 123-WH-18 120-YL 179-BU 147-PU 150-OR-18 191-WH-14 309-GY-18

C

1 2 3 4 5 6

120-YL 120-YL 200-BK

A513-RD 592-BU 103-RD-18 113-OR-18 200-BK 200-BK

115-RD

15A 5A 10A 10A 5A 10A 10A 5A 10A 10A 10A 5A 15A 5A 5A 10A 5A 10A 10A 15A

MAIN RELAY 213-0772

EE

J

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

4 5 1 2 3 6

TT PP

615-YL

C

J

A 120-YL 200-BK 179-BU 200-BK 135-BU 210-BK C569-YL 229-BK

+12V UNSWITCHED +12V SWITCHED +24V INPUT IGNITION GROUND GROUND

C

PRODUCT LINK REFUELING PUMP

172-RD-18 168-RD-10

308-YL-18 200-BK-18

ATCH 12V 7A CONVERTER 167-3467 24V MEMORY 24V IN GND 12V MEMORY 12V OUT GND

L39

CAB LAMP RELAY 161-3128 646-RD-18

235-BK-18 430-BU-18

147-PU 235-BK-18 G976-BU-18

235-BK-18 412-BU-18

578-BU

200-BK-18

506-PU-18

200-BK-18

B

L30

A770-PK-18

DIODE 121-1022

VV DD

HEATER CONT UNIT 197-4330

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

2 1

A B C

CHASSIS LAMP RELAY 161-3128

A/C BLOWER TIMER RELAY HORN CAB LAMP DOME LAMP/MEMORY KEY SW E/P CONT BOOM LAMP ATCH V CONT

175-RD-14 110-RD 114-RD 115-RD 103-RD 105-RD 184-RD 149-RD C987-RD-14

L13 L22 L12 L35 L39

A513-RD 592-BU

607-PK 607-PK

B B

4 L14 L13 L22 L12 L35 L39

135-BU-14 210-BK-14 C569-YL-14 229-BK-14 607-PK 509-WH-18 512-GN-18 508-PU-18 511-BR-18 103-RD 113-OR-18 200-BK-18 K871-WH K872-OR K879-GN 607-PK-18 307-OR 310-PU 586-BR 147-PU 147-PU 147-PU 147-PU 147-PU 147-PU L973-GN 200-BK-18 200-BK-18 607-PK-18 607-PK-18 200-BK-18 200-BK-18 A537-PK-18 578-BU 575-YL-18 576-PK-18 123-WH-18 535-BU-18 535-BU-18 535-BU 535-BU 535-BU 200-BK-18 607-PK 646-RD-18 645-RD-18 113-OR-18 M741-GY-18 H465-GN-18 M742-PU-18 H466-BU-18 M734-BR-18 H467-WH-18 129-BU 403-GN-18 410-WH-18 A584-BU-18 506-PU-18 118-GY 200-BK-14 169-PK-18 103-RD 893-GN-18 892-BR-18 152-BU 201-BK-18 200-BK 235-BK-18

C

15A 10A 10A 10A 10A 10A 10A 10A 15A 10A 5A 30A

L30

C

L35

646-RD-18

160-PU

Z

5

L19

MOTOR

160-PU-18 A623-BU-18

FUSE 5A 141-2759 10A 113-8490 15A 113-8491 30A 124-3548

FUSE BASE 183-1000

5A 10A 10A 15A 15A 30A

VV

HEATER RELAY 116-0114

169-PK-18 169-PK-18

235-BK-14 151-GN K776-GN-18 893-GN-18 892-BR-18 616-BU 607-PK C987-RD-14 184-RD 322-GY A588-GN 189-RD 309-GY-18 172-RD-18 147-PU 403-GN-18 308-YL A718-PU-18 L975-PK-18

B MOTOR

149-RD

AIR CLEANER SW 154-0498

+B GROUND SIGNAL

COOLANT ATCH LOWER WASHER LEVEL SW 245-9205 7T-8890

308-YL-18 235-BK-18 893-GN-18 892-BR-18 645-RD-18 616-BU 646-RD-18 607-PK 607-PK 646-RD-18 615-YL 160-PU 149-RD 115-RD 115-RD 149-RD 110-RD 105-RD C987-RD-14 184-RD 103-RD 175-RD-14 172-RD-18 168-RD-10 114-RD 160-PU 309-GY-18 152-BU 118-GY 147-PU 169-PK-18 113-OR-18 124-GN-14 123-WH-18 120-YL 179-BU 129-BU 191-WH-14 150-OR-18 114-RD 200-BK-18 320-RD-18 322-GY A588-GN A588-GN 189-RD 151-GN 200-BK-18 306-GN 307-OR 154-RD

616-BU

DIODE 121-1022 C

200-BK 189-RD 308-YL 110-RD

ATCH THUMB CLOSE RELAY 149-5050 (NOTE H)

T716-PK-18 T715-WH-18

TIMER RELAY 163-6703

2 3 4 1

ATCH THUMB OPEN RELAY 149-5050 (NOTE H)

BACKUP RESISTOR 102-8016

308-YL

C GND OUT IN +B

BOOM LAMP RELAY 161-3128 645-RD-18

ATCH WATER SEPARATOR LEVEL SENSOR 171-9091

200-BK-18 200-BK-18 200-BK 200-BK-18 235-BK-18 235-BK-14 330-YL 330-YL 308-YL 308-YL-18 169-PK-18 306-GN 235-BK-14 403-GN-18 K776-GN-18 893-GN-18 892-BR-18 616-BU 607-PK C987-RD-14 184-RD 322-GY A588-GN 309-GY-18 172-RD-18 147-PU 189-RD 189-RD 189-RD 189-RD 189-RD 151-GN 151-GN 151-GN 151-GN 189-RD 147-PU 147-PU 147-PU 646-RD-18 646-RD-18 646-RD-18 646-RD-18 645-RD-18 615-YL 103-RD 175-RD-14 152-BU 118-GY 105-RD 113-OR-18 124-GN-14 123-WH-18 120-YL 179-BU 129-BU 320-RD-18 154-RD 307-OR 191-WH-14 A588-GN 607-PK 150-OR-18 168-RD-10

T714-BU-18 T713-GN-18

ATCH BATTERY 3T-5760 (NOTE C)

POS NEG

WH/BU BK YL WH/YL WH/GN

S GND L P R

START CONT RELAY 094-2080

893-GN-18 892-BR-18

C

B

6

RELAY PANEL 330-YL 330-YL 200-BK-18 K776-GN-18 403-GN-18 309-GY-18 309-GY-18

308-YL-18

BK-00

308-YL-18 235-BK-18

A B C D E F G H J

C

308-YL

HH (NOTE C)

J

WASHER 7T-8890

7

200-BK-18 200-BK-18 200-BK 235-BK-14 200-BK-18 235-BK-18 200-BK-18 200-BK-18 200-BK-18

CONN 2 ET CONN

POS NEG

RELAY PANEL

C

BATTERY 3T-5760

POS NEG

GG (NOTE C) RD-00

RD-00

8

OPERATOR STATION

BK-00

POS NEG

FF (NOTE C)

9

168-RD-10 150-OR-18 607-PK A588-GN 105-RD 189-RD 645-RD-18 615-YL 103-RD 175-RD-14 152-BU 118-GY 191-WH-14 147-PU 113-OR-18 124-GN-14 123-WH-18 120-YL 179-BU 129-BU 320-RD-18 151-GN 307-OR 154-RD 646-RD-18 308-YL 169-PK-18 A770-PK-18

RD-00

RD-00

10

CC

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21

11 BB

607-PK-18 607-PK-18 307-OR 310-PU 200-BK-18 200-BK-18

12 AA

NOTE J: USE WITH CONFIG.5.

V

W

ATCH REFUELING START SW(NO) 6T-9442

NOTE K: USE WITH CONFIG.14. ATCH REFUELING START RELAY 149-5050

ATCH REFUELING STOP RELAY 149-5050

ATCH REFUELING POWER RELAY 165-4026

2

NOTE L: USE WITH CONFIG.3 AND 14.

1

A

material-schematic-electrical-system-hydraulic-excavator-320c ...

157-3198. SWITCH PANEL. 163-6701. A/C PHOTO. SENSOR. 167-7083. 12. 13. SERVICE. METER. 6T-7337. MOTOR. 1. 2. L. F. CIGAR. LIGHTER. 9W-0335. F.

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