INTERACTIVE SCHEMATIC

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Cover Page screen resolution of 1024 X 768.
Information To set your screen resolution do the following:
Component Table
Tap Table
RIGHT CLICK on the DESKTOP.
Fluid Power Symbols Select PROPERTIES.
Electrical Symbols CLICK the SETTINGS TAB.
Schematic
MOVE THE SLIDER under SCREEN RESOLUTION
Machine Views
Front Frame
until it shows 1024 X 768.
Rear Frame CLICK OK to apply the resolution.
Tap Views

The Bookmarks panel will allow you to

quickly navigate to points of interest.

EC-C2 E-C60
EC-C3

E-C61

Click on any text that is BLUE and underlined.

These are hyperlinks that can be used to navi-
gate the schematic and machine views.

EC-C1

When only one callout is showing on a machine view this

VIEW ALL CALLOUTS button will make all of the callouts visible. This button is
located in the top right corner of every machine view page.

HOTKEYS (Keyboard Shortcuts)

FUNCTION KEYS
Zoom In “CTRL” / “+”
Zoom Out “CTRL” / “-”
Fit to Page “CTRL” / “0” (zero)
Hand Tool “SPACEBAR” (hold down)
Find “CTRL” / “F”
 RENR5393-01
November 2003

325C Excavator
Electrical System
BFE1-UP

© 2003 Caterpillar, All Rights Reserved Printed in U.S.A.

COMPONENT LOCATION
Page 1 of 2

Schematic Machine Schematic Machine

Component Component
Location Location Location Location
A/C Unit D-5 A Sensor - WTR Seperator Level - Atch H-7 16
Alarm - Action F-3 G Solenoid - 1 Way/2 Way Control - Atch B-5 18
Alarm - Travel - Atch A-4 3 Solenoid - A/C Clutch D-11 24
Alternator E-10 4 Solenoid - Boom Check 1 - Atch B-5 25
Assembly - Block G-11 J Solenoid - Boom Check 2 - Atch B-5 25
Battery E-11 5 Solenoid - Boom Down Line Out Off - Atch C-9 25
Battery - Atch E-12 5 Solenoid - Fine Swing C-3 18
Breaker - ALT H-9 1 Solenoid - Flow Limit A-12 19
Breaker - Heater Relay I-11 J Solenoid - Hammer A-9 19
Control - Engine F-12 4 Solenoid - HYD Lock C-9 20
Control - Engine/Pump E-8 1 Solenoid - Injector 1-6 C-11 2
Control - Valve - Atch C-7 1 Solenoid - Powershift Control A-11 E
Control - Wiper F-2 G Solenoid - Primary NFC - Atch A-12 19
Converter - 12V 10A - Atch I-5 13 Solenoid - Pump 1 Flow Control A-12 E
Converter - Atch D-5 A Solenoid - Pump 2 Flow Control A-12 E
IND Unit H-1 B Solenoid - Quick Coupler - Atch A-11 19
Joystick - Atch H-1 B Solenoid - Relief 1 - Atch B-5 18
Jystick - Atch I-3 C Solenoid - Relief 2 - Atch B-5 18
Meter - Service F-2 A Solenoid - Relief Check 1 - Atch A-5 18
Monitor F-1 11 Solenoid - Relief Check 2 - Atch B-5 18
Motor - Fuel Pump H-7 24 Solenoid - Separate Valve - Atch C-8 6
Motor - Lower Washer - Atch G-7 H Solenoid - Stem 1 Control A A-9 6
Motor - Lower Wiper - Atch I-1 H Solenoid - Stem 1 Control B A-9 6
Motor - Starter D-11 12 Solenoid - Stem 2 Control A A-9 6
Motor - Washer G-7 15 Solenoid - Stem 2 Control B A-9 6
Motor - Wiper F-1 A Solenoid - Stem 3 Control A B-9 6
Panel - Switch E-1 G Solenoid - Stem 3 Control B B-9 6
Panel - Switch A/C Heater D-1 G Solenoid - Stem 4 Control A B-9 6
Pickup - Engine Speed D-11 F Solenoid - Stem 4 Control B B-9 6
Product Link - Atch G-12 J Solenoid - Swing Brake C-9 20
Relay - Boom Float Disable - Atch I-12 J Solenoid - Travel Speed C-9 20
Relay - Boom Lamp I-8 J Solenoid - Travel Straight C-9 20
Relay - Cab Lamp H-8 23 Switch - ACL E-9 E
Relay - Chassis Lamp I-8 23 Switch - Aux HYD Pressure - Atch I-1 H
Relay - Fuel Pump G-8 1 Switch - Backup Gov H-2 B
Relay - Heater E-11 23 Switch - Boom Down Pressure C-8 H
Relay - Horn H-8 23 Switch - Coolant Level H-7 21
Relay - HYD Lock Solenoid H-8 23 Switch - Disconnect G-9 23
Relay - Main H-11 23 Switch - Engine Oil Level D-11 12
Relay - Neutral Start H-8 23 Switch - Ground Level Shutdown G-5 B
Relay - Smart Boom Up/Down 1 - Atch I-12 J Switch - Hammer Foot - Atch H-2 H
Relay - Smart Boom Up/Down 2 - Atch I-11 J Switch - Hammer Pressure - Atch I-1 H
COMPONENT LOCATION
Page 2 of 2

Schematic Machine Schematic Machine

Component Component
Location Location Location

Relay - Start H-10 23 Switch - Hammer Pressure - Atch A-9 19

Relay - Timer I-9 23 Switch - Horn I-3 C
Resistor - Backup I-11 J Switch - HYD Oil Filter A-5 E
Sender - HYD Oil Temperature A-5 A Switch - HYD Oil Level A-4 10
Sensor - A/C Photo F-1 G Switch - Joystick Pressure H-3 H

Sensor - Atmospheric Pressure B-11 2 Switch - Key G-1 B

Sensor - Coolant Temperature B-11 2 Switch - Lower Washer - Atch D-2 B
Sensor - Dual Cam Speed/Timing Hi B-11 2 Switch - Lower Wiper - Atch D-2 B
Sensor - Dual Cam Speed/Timing Low B-11 2 Switch - Medium Line Pressure - Atch H-1 H
Sensor - Engine Oil Pressure C-11 2 Switch - Neutral Start Limit I-3 H
Sensor - Engine Oil Temperature B-11 2 Switch - One Touch Low Idle H-1 B
Sensor - FLY Timing CAL B-11 2 Switch - Quick Coupler - Atch G-1 B
Sensor - Fuel Level A-4 25 Switch - Straight Travel Pressure - Atch I-1 C
Sensor - Fuel Pressure C-11 2 Switch - Throttle Position H-1 B
Sensor - Injector Actuation Pressure B-11 2 Switch - Travel Left Pressure H-1 H
Sensor - Intake Air Temperature B-11 2 Switch - Travel Right Pressure H-1 H
Sensor - Negative Control Pressure 1 A-12 E Switch - Under Window Limit - Atch F-1 G
Sensor - Negative Control Pressure 2 A-12 E Switch - Up / Down Pressure B-8 H
Sensor - Pump Discharge Pressure #1 A-11 E Switch - Window Limit G-1 G
Sensor - Pump Discharge Pressure #2 A-10 E Switch- Backup EPR Valve G-2 B
Sensor - Squeeze Pressure - Atch B-5 13 Switch- Fine Swing Control - Atch D-2 D
Sensor - Tool Pressure - Atch C-7 10 Valve - IAP Control A-11 F
Sensor - Turbo Outlet Pressure B-11 2
Machine locations are repeated for components located close together.
A = Located inside of cab.
B = Located inside of right console.
C = Located inside of left console.
D = Located around swing motor area.
E = Located inside of pump compartment.
F = Located inside of engine compartment.
G =Located around dash area.
H = Located under Operators Platform
J = Located around relay panel.
CONNECTOR LOCATION

Schematic Machine
Connector Number
Location Location
CONN 1 G-12 J
CONN 2 G-12 J
CONN 3 G-12 23
CONN 4 G-11 23
CONN 5 C-11 23
CONN 6 G-10 23
CONN 7 G-10 23
CONN 8 A-6 E
CONN 9 E-6 14
CONN 10 H-6 H
CONN 11 H-6 H
CONN 12 H-6 H
CONN 13 F-5 H
CONN 15 B-4 25
CONN 16 B-4 25
CONN 17 D-4 A
CONN 18 E-4 A
CONN 19 E-4 A
CONN 20 F-4 A
CONN 21 I-4 H
CONN 22 I-3 H
CONN 23 I-3 C
CONN 24 H-3 H
CONN 25 H-3 H
CONN 26 H-3 H
CONN 27 G-3 H
CONN 28 G-3 H
CONN 29 C-2 H
CONN 30 C-2 22
CONN 31 F-1 B
CONN 32 G-1 G
CONN 33 ET Connector I-9 J
CONN 34 I-5 H

The connectors shown in this chart are for harness to harness connectors.
Connectors that join a harness to a component are generally located at or near the
component. See the Component Location Chart.
CID / MID / FMI
Component Identifiers (CID¹)
Module Identifier (MID²)
Component Identifiers (CID¹) For
Engine/Pump Control (MID² No. 69)
Failure Mode Identifiers (FMI)¹
CID Component FMI No. Failure Description
0091 Throttle Position Signal 0 Data valid but above normal operational range.
0096 Fuel Level Sensor 1 Data valid but below normal operational range.
0110 Engine Coolant Temperature Sensor
0167 Alternator 2 Data erratic, intermittent, or incorrect.
0168 Voltage Of The Power Supply (keyswitch) 3 Voltage above normal or shorted high.
0190 Speed Sensor 4 Voltage below normal or shorted low.
0248 Cat Data Link
5 Current below normal or open circuit.
0286 Signal For Engine Oil Pressure Decrease
0374 Swing Brake Solenoid Valve 6 Current above normal or grounded circuit.
0376 Travel Alarm 7 Mechanical system not responding properly.
Proportional Reducing Valve For The Power Shift 8 Abnormal frequency, pulse width, or period.
0581
Pressure
9 Abnormal update.
0586 Engine Speed Dial
0587 Feedback Sensor For The Governor Actuator 10 Abnormal rate of change.
0590 Engine Control 11 Failure mode not identifiable.
0598 Travel Speed Solenoid 12 Bad device or component.
0600 Hydraulic Oil Temperature Sensor
13 Out of calibration.
1161 Pump Delivery Pressure Sensor (Drive)
1162 Pump Delivery Pressure Sensor 2 (Idle) ¹The FMI is a diagnostic code that indicates what type of failure has occurred.
1525 Straight Travel Solenoid
2002 Action Alarm
Component Identifiers (CID¹) For
Engine Control (MID² No. 24)
CID Component
0001 Injector Solenoid 1st Cylinder
0002 Injector Solenoid 2nd Cylinder
0003 Injector Solenoid 3rd Cylinder
0004 Injector Solenoid 4th Cylinder Event Codes For ADEM III ECM
0005 Injector Solenoid 5th Cylinder
Event Code Condition
0006 Injector Solenoid 6th Cylinder
0041 8V DC Supply E015 High Engine Coolant Temperature Derate
0042 Injector Actuation Control Valve E017 High Engine Coolant Temperature Warning
0091 Backup Throttle Position Switch
0094 Fuel Pressure Sensor E025 High Inlet Air Temperature Derate
0100 Engine Oil Pressure Sensor E027 High Inlet Air Temperature Warning
0110 Engine Coolant Sensor
E039 Low Engine Oil Pressure Derate
0164 Injector Pressure Sensor
0168 System Voltage E095 Fuel Filter Restriction Warning
0172 Inlet Air Temperature Sensor E096 High Fuel Pressure
0175 Engine Oil Temperature Sensor
0190 Engine Speed Pickup E100 Low Engine Oil Pressure Warning
0253 Personality Module E190 Engine Overspeed Warning
0261 Timing Sensor Calibration
0262 Analog Sensor Power Supply Voltage E265 User Defined Shutdown
0273 Turbocharger Compressor Outlet Press. Sens.
0274 Atmospheric Pressure Sensor
0286 EMS Oil Lamp
0342 Secondary Speed Timing Sensor
0617 Air Heater Relay
1627 Fuel Pump Relay
Component Identifiers (CID¹) For
Valve Control (MID² No. 6A)
CID Component
0145 12 Volt 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 1 Way/2 Way 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.
SPECIFICATIONS AND RELATED MANUALS

Related Electrical Service Manuals

Title Form Number
Alternator: 185-5294 SENR4130
Electric Starting Motor: 104-7040
Consist: 106-8557 (Bosch JE) SENR3859
Consist: 6V-5720 (Delco 37 MT) SENR3581
Engine Control: SENR9582
RENR3814
Engine/Pump Control:
RENR3815
Valve Control: RENR3823

Resistor, Sender and Solenoid Specifications

Part No. Component Description Resistance (Ohms)¹
107-7056 Solenoid: Fine Swing 34 ± .5
Solenoid: Powershift Control
111-9916 ATCH Stem 1-4 Control A & B 11.7 ± 2.2
ATCH Separate Valve
112-0090 Solenoid: Relief 19.5 ± 2.0
Solenoid: Travel Speed
121-1491 Swing Brake 32.0 ± 3.2
Travel Straight
152-8346 Solenoid: ATCH Quick Coupler 32.6 ± 1.6
0% - 83.5 ± 1.5
163-6700 Sender: Fuel Level 50% - 33.8 ± 2.0
100% - 8.0 +1.0 -0.5
Flow Limit
Primary NFC
171-0114 Solenoid: 11.7 ± 1.2
Pump Flow Control 1
Pump Flow Control 2
4I-5394 Sender: Hydraulic Oil Temperature 6134 to 7496
7Y-8242 Resistor: Backup 47 ± 4.7
¹ At room temperature unless otherwise noted.

Off Machine Switch Specification

Part No. Function Actuate Deactuate Contact Position
154-0498 ACL Flow 635 ± 58 mm H2O - Normally Open
ATCH Medium Line Pressure
ATCH Hammer Pressure
Joystick Pressure
ATCH Straight Travel Pressure 490 ± 49 kPa 290 kPa MIN
167-3466 Normally Open
Travel Left Pressure (71.07 ± 7.11 psi) (42.06 psi)
Travel Right Pressure
ATCH Aux HYD Pressure
ATCH Boom Down Pressure
168-7557 ATCH Up/Down Pressure 13780 kPa MAX 10335 ± 689 kPa Normally Closed
 HARNESS and WIRE
Electrical Schematic Symbols
Symbols

Pressure Temperature Level Flow Circuit Breaker

Symbol Symbol Symbol Symbol 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.

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

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.

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: Harness Identification Letter(s): (A, B, C, ..., AA, AB, AC, ...)
Includes Harness Identification Letters and Harness
Connector Serialization Codes (see sample).
Harness Connector Serialization Code: The "C" stands for
"Connector" and the number indicates which connector in the
harness (C1, C2, C3, ...).
AG-C4 L-C12
111-7898 3E-5179 L-C12
3E-5179
Part Number: for 1 Part Number: for
Connector Plug
Connector Receptacle
2

Plug Receptacle
Pin or Socket Number

5A
1 Deutsch connector: Typical representation
Component
of a Deutsch connector. The plug contains all Fuse (5 Amps) 9X-1123 Part Number
2 sockets and the receptacle contains all pins.
325-AG135 PK-14
1 Sure-Seal connector: Typical representation Harness identification code:
of a Sure-Seal connector. The plug and receptacle This example indicates wire group 325, Wire Gauge
2 contain both pins and sockets. wire 135 in harness "AG". Wire Color
 12 11 10 9 8 7 6 5 4 3 2 1
RELAY PANEL OPERATOR STATION

(J) BACKUP RESISTOR

7Y-8242 120-YL 120-YL Z E E E475-PK-18 3
D 646-RD-18 120-YL CONN 34 235-BK-18 5 4
D D (H) ATCH LOWER
(J) ATCH SMART BOOM (J) ATCH SMART BOOM A770-PK-18 169-PK-18 DIODE 646-RD-18 (13) ATCH 12V 10A 24V MEMORY 1 120-YL X A E472-GN-18 1 E472-GN-18 1 +12V (C) ATCH 235-BK-16 235-BK-16 5
UP/DOWN RELAY1 UP/DOWN RELAY2 L60 121-1022 L63 JOYSTICK WIPER MOTOR
169-PK-18 169-PK-18 A623-BU-18 CONVERTER 24V IN 2 120-YL 1 120-YL E474-OR-18 2 E474-OR-18 3 PWM+ 235-BK-18 235-BK-18 235-BK-18 2
149-5050 149-5050 A588-GN GND 3 200-BK 2 200-BK K844-GY-18 4 K844-GY-18 5 SWITCH 1 177-7712 E472-GN-18 235-BK-18 E472-GN-18 1 167-7079
159-1549 L63 +
M746-YL-18 200-BK-18 M745-BU-18 200-BK-18 147-PU 12V OUT 5 135-BU 5 135-BU K848-WH-18 6 K848-WH-18 6 SWITCH 2 E474-OR-18 6 A
ATCH LEFT
M746-YL-18 322-GY GND 6 210-BK 6 210-BK 3 235-BK-18 4 COMMON K844-GY-18 FOOT PEDAL Z 576-PK-18 3 S +1

J726-YL
V L52 L52 MOTOR
M748-OR-18 M746-YL-18 M746-YL-18 H792-BR-18 607-PK 12V MEMORY 4 3 179-BU CONN 22 235-BK-18 2 GND K848-WH-18 535-BU 1
V ET CONN Y L15 -
M747-PU-18 M746-YL-18 616-BU 4 200-BK 235-BK-18 575-YL-18 4
308-YL A (J) BOOM LAMP RELAY 5A 143-BR-18 BOOM FLOAT 7 C569-YL 235-BK-18 235-BK-18 235-BK-18 2 200-BK-18 2
893-GN-18 D 161-3128 5A 179-BU 179-BU 8 229-BK E472-GN-18 E472-GN-18 1
L53 D
892-BR-18 E 149-RD 645-RD-18 10A 179-BU 9 (C) HORN SW E472-GN-18 E472-GN-18 5

114-RD
115-RD
149-RD
235-BK-18 B 149-RD 15A 191-WH FINE SWING 179-BU 10 CONN 23 E472-GN-18 4

L52
128-2134
I (J) ATCH BOOM FLOAT 188-WH-16 FUEL PUMP 11 I

C569-YL
D C 149-RD 616-BU 10A 179-BU 200-BK 200-BK-18 2 200-BK-18 E476-PU-18 3 235-BK-18

135-BU
229-BK

210-BK
DISABLE RELAY D WIPER/WASHER (13) ATCH 12V 10A 12
308-YL 4 IN F 10A 118-GY 200-BK 200-BK-18 1 320-RD-18 ATCH RIGHT 6 235-BK-18

114-RD
115-RD
149-RD
149-5050 (23) TIMER CHASSIS LAMP CONVERTER A E E
200-BK 2 GND G 10A 160-PU C569-YL FOOT PEDAL Z 235-BK-18 235-BK-18
RELAY BACKUP/MONITOR CONT 159-1549
143-BR-18 M743-GN-18 110-RD 1 +B H 5A 169-PK-18 229-BK CONSOLE(LH) 235-BK-18
163-6703 (23) CHASSIS LAMP RELAY AUX CKT

L61
143-BR-18 189-RD 3 OUT J 10A 123-WH-18
D 161-3128 LOWER WIPER/WASHER Y A A
143-BR-18 10A 152-BU 320-RD-18

L53
V CONN 33 CIGAR LIGHTER
M744-PK-18 229-BK 160-PU A623-BU-18 10A 129-BU 12V 10A X 2 154-RD A RD-18 235-BK-18 2

L27
L17

L60
SW PANEL/RADIO L17
306-GN 160-PU 5A 113-OR-18 200-BK 151-GN B WH-18 K849-YL-18 1

K848-WH-18

E474-OR-18
E472-GN-18

K843-GN-18

E472-GN-18
K844-GY-18

E473-GY-18
E476-PU-18
191-WH

E475-PK-18
ATT SOL L15

235-BK-16
306-GN 306-GN 160-PU 607-PK 10A 147-PU 200-BK 189-RD C BK-18 (H) ATCH
184-RD D 10A 120-YL 12V 10A CONVERTOR 1 200-BK 1 HAMMER PRESS. SW
L54 12V 10A CONVERTOR 2 CONN 21 (H) NEUTRAL START
105-RD 10A 179-BU 200-BK-18 2 167-3466
M743-GN-18
M748-OR-18
M747-PU-18

M745-BU-18
M744-PK-18

H792-BR-18
M746-YL-18
DIODE A/C GROUND STRAP LIMIT SW A
130-RD-14 15A 124-GN-14 200-BK-14 3
DIODE 121-1022 607-PK 607-PK 5A 150-OR-18 QUICK COUPLER 7G-1060 200-BK-14 M743-GN-18 4 M743-GN-18 163-6785 235-BK-18 2 A
121-1022 D PRODUCT LINK 607-PK J726-YL PRODUCT LINK 200-BK-14 KK Z H473-BR-18 1 235-BK-18 2
10A 106-RD 10A

L15
(J) HEATER RELAY BREAKER ENG CONT CAB FAN
216-4970 306-GN 15A 130-RD-14 (23) CAB LAMP RELAY 10A 166-BR A 235-BK L62 K852-GN-18 1
D HORN AUX CKT L62 L62
200-BK 10A 114-RD 161-3128 10A 180-GN CHASSIS PLATFORM (C) ATCH STR PRESS.SW (H) ATCH
TIMER RELAY L80 L80 L80
KK LL D D 10A 110-RD 115-RD 646-RD-18 167-3466 AUX HYD PRESS. SW
CAB LAMP B A L61 L61
L79

L80
120A 308-YL 229-BK 10A 115-RD 115-RD 615-YL 200-BK-18 167-3466

L61
308-YL 200-BK 2 200-BK 105-RD KEY SW 115-RD 615-YL 308-YL 11 576-PK-18 A
10A
BOOM LAMP D L62 L62 L15 L15 A
308-YL 200-BK 1 306-GN 10A 149-RD 615-YL 129-BU 8 535-BU 235-BK-18 2
D E/P CONT L26
166-BR

101-RD-4

108-RD-4
308-YL 200-BK 10A 184-RD 152-BU 6 179-BU 575-YL-18 K851-BU-18 1 235-BK-18 2

L54

L62

L17
C987-RD-14 ATCH V CONT SS 150-OR-18 123-WH-18 9 120-YL 235-BK-18 235-BK-18 H475-BU-18 1
15A (H) ATCH MEDIUM
RR DOME LAMP/MEMORY
112-PU-6 109-RD-8 304-WH-8 10A 103-RD
L57
124-GN-14 A770-PK-18 2 CONN 10 320-RD-18
L17
307-OR 235-BK-18 235-BK-18 H473-BR-18 LINE PRESS. SW (H) TRAVEL LEFT PRESS. SW
SS 109-RD-6 RR PP 175-RD-14 A/C BLOWER (23) HORN RELAY 179-BU 645-RD-18 3 154-RD 235-BK-18 235-BK-18 K851-BU-18
15A 161-3128 167-3466 167-3466
L79 NN AUX CKT L51
10A 168-RD 114-RD 320-RD-18 120-YL 615-YL 4 151-GN 235-BK-18 235-BK-18 K849-YL-18

112-PU-6
(23) MAIN RELAY (23) START RELAY A L16 A
114-RD 191-WH 320-RD-18 1 189-RD 169-PK-18 (H) ATCH HAMMER K852-GN-18
165-4026 125-1302
114-RD 322-GY 113-OR-18 151-GN 12 169-PK-18 169-PK-18 235-BK-18 235-BK-18 2 308-YL 1 FOOT SW. H475-BU-18 235-BK-18 2

L53
DD

J726-YL
D L80

106-RD
101-RD-4 129-BU 154-RD 10 A770-PK-18 H476-WH-18 H476-WH-18 1 954-GN 2 138-4653 H474-GN-18 H474-GN-18 1
L34 L34
152-BU 105-RD 7 307-OR H473-BR-18 T

L52
FF EE (H) JOYSTIC PRESS. SW (H) TRAVEL RIGHT PRESS. SW
101-RD-4 80A 109-RD-4 (23) HYD LOCK SOL RELAY 123-WH-18 189-RD 5 105-RD K851-BU-18 167-3466 167-3466
FF L35 L35 L16 L16
161-3128 B A 150-OR-18 K849-YL-18
(1) ALT BREAKER 151-GN 200-BK-18 307-OR 5 166-BR K852-GN-18
171-2210 L36 CONN 24
175-RD-14 1 H475-BU-18 E472-GN-18 1 +12V

L50
L54 L54 L54 L14
189-RD A588-GN 103-RD 8 123-WH-18 H474-GN-18 1 E472-GN-18 E473-GY-18 3 PWM+
L52 L52 L52 D L61 L14
H 607-PK 7 615-YL 2 E473-GY-18 K843-GN-18 5 SWITCH 1 H

L36
L53 L53 L53
166-BR 12 CONN 11 118-GY 3 K843-GN-18 K847-PU-18 6 SWITCH 2

L51
L25
189-RD 189-RD 124-GN-14 3 646-RD-18 M743-GN-18 4 K847-PU-18 235-BK-18 4 COMMON
L60

L57

L27

L26
189-RD 179-BU 4 113-OR-18 Z F CONN 25 235-BK-18 2 GND
120-YL 2 129-BU 12 235-BK-18 F
191-WH 6 152-BU 200-BK-18 11 200-BK-18 200-BK-18 200-BK-18 F (B) ATCH JOYSTICK
(23) NEUTRAL START RELAY
113-OR-18 10 103-RD 169-PK-18 8 607-PK 200-BK-18 ATCH 200-BK-18 L. CHASSIS (B) IND UNIT 235-BK-18 177-7711
161-3128
168-RD 154-RD 200-BK-18 169-PK-18 9 645-RD-18 A770-PK-18 A770-PK-18 5 L972-BU-18 2 SEAT WITH 607-PK +B 163-6702 235-BK-18 235-BK-18

L25
L57 (24) FUEL PUMP L34
646-RD-18 11 191-WH 150-OR-18 150-OR-18 1 A755-PK-18 A537-PK-18 1 SEAT HEATER L972-BU-18 235-BK-18
188-6121

GROUND
307-OR 306-GN (21) COOLANT (16) ATCH WTR 615-YL 105-RD 105-RD 2 A756-BU-18 F 164-0505 A755-PK-18 2 S1 235-BK-18

SIGNAL

SIGNAL
B A
D LEVEL SW SEPARATOR 6 308-YL 308-YL 307-OR 307-OR 307-OR 3 A757-GY-18 A756-BU-18 3 S2 F
235-BK-18 096-0744 LEVEL SNSR MOTOR 118-GY 1 124-GN-14 308-YL 307-OR 308-YL 4 A758-BR-18 A757-GY-18 4 S3 235-BK-18

+B
180-GN
200-BK 178-2345 615-YL 3 CONN 12 175-RD-14 607-PK 7 F773-OR-18 A758-BR-18 5 S4 L972-BU-18
200-BK-18 150-OR-18 2 607-PK 607-PK L972-BU-18 6 F774-WH-18 235-BK-18 1 COM

L62
5 2 1 (B) ONE TOUCH LOW IDLE SW
200-BK-18 200-BK-18 607-PK 607-PK A755-PK-18 10 169-PK-18 998-BR-18 F774-WH-18 6
200-BK-18 F716-WH 4 A756-BU-18 9 M736-BU-18 F F773-OR-18 F (B) THROTTLE POS SW 128-2134

4
2
1
3
F CONN 26 (B) BACKUP GOV SW 3F 106-0107
200-BK 229-BK-18 229-BK-18 A757-GY-18 A
235-BK-14 B A758-BR-18 1 998-BR-18 163-6711 (B) BACKUP 235-BK-18

1
2
L18 L18

124-GN-14
175-RD-14
D B F EPR VALVE SW

200-BK-14
F773-OR-18 2 F889-WH-18 235-BK-18 235-BK-18

L35
V

607-PK
G976-BU-18
L50 L50 (1) FUEL PUMP RELAY L26 F CONN 27 163-6710

235-BK-18
F774-WH-18 A 169-PK-18 235-BK-18

147-PU
161-3128 1 2
M736-BU-18 5 A537-PK-18 K906-GN-18

A893-OR-16
L49 L49 3 R

A278-BK
H705-BR-18 229-BK-18 K907-BU-18 6 K907-BU-18 K907-BU-18 K906-GN-18
L51
L54

L53

L51
L79

L52

L60

L50

CAB L969-WH-18 11 A770-PK-18 A770-PK-18 L13 308-YL

B 4 5 C OFF
180-GN 188-WH-16 A893-OR-16 L968-OR-18 8 L969-WH-18 A768-BU-18 326-RD

L18
6 S ON F
D ATCH SPEAKER (R) 511-BR-18 A769-GY-18 9 L968-OR-18 L969-WH-18 307-OR 780-PU-18

L24
B ST

L27
7 F

412-BU-18
6T-7695

235-BK-14
235-BK-18
235-BK-18
(B) GND LEVEL SHUTDOWN SW 512-GN-18 A768-BU-18 3 A769-GY-18 M736-BU-18 105-RD 150-OR-18
M743-GN-18
M748-OR-18
M747-PU-18

M745-BU-18
M744-PK-18

C987-RD-14
H792-BR-18
M746-YL-18

A770-PK-18

8
893-GN-18
130-RD-14

646-RD-18
304-WH-8
892-BR-18

235-BK-14

169-PK-18
A588-GN

CONN 1
109-RD-6
109-RD-4

101-RD-4
101-RD-4

J726-YL
108-RD-4

139-2118 K906-GN-18 2 A768-BU-18 F889-WH-18 235-BK-18

151-GN

151-GN
105-RD
184-RD

322-GY

106-RD
147-PU

616-BU
607-PK
308-YL

CONN 4 G 9 F L (B) KEY SW

B 780-PU-18 1 K906-GN-18
(J) ATCH B (H) ATCH A 10 308-YL 235-BK-18 CONN 32 9G-7641

L51
A893-OR-18
H705-BR-18
L58 L13 10 11

320-RD-18

645-RD-18
PRODUCT 578-BU MOTOR LOWER 235-BK 2 WH-18 998-BR-18 7 326-RD A769-GY-18

154-RD
189-RD

118-GY
607-PK
615-YL
WASHER 12 F
LINK BK-00 F716-WH 1 RD-18 511-BR-18 F889-WH-18 12 307-OR L968-OR-18
L EE D CC 7T-8890 L23 (B) ATCH QUICK

L57

L49

L51
D D PP BK-00 512-GN-18 A537-PK-18 4 105-RD

L49
NN KK DD LL D JJ 200-BK-18 508-PU-18 A F COUPLER SW
C
A
B

10
11

12
4
7
3
8

6
2
5

4
3
5
6
5

L13
2
1
6

ATCH SPEAKER (L) 150-6988

4
3

200-BK 509-WH-18 1 150-OR-18

2
4
5
6
3
1

L51
B L59 6T-7695 CONN 28
B 200-BK-18 2 780-PU-18 150-OR-18
G Z B G

A893-OR-18
H705-BR-18

123-WH-18
S

191-WH-16
150-OR-18
124-GN-14

113-OR-18
175-RD-14

320-RD-18

645-RD-18
G

235-BK-14
615-YL-16
B B B A F 780-PU-18

307-OR
103-RD

154-RD
189-RD

118-GY

166-BR

179-BU

129-BU
152-BU
607-PK

235-BK
235-BK
308-YL

615-YL

120-YL
L58 L59 L58 L49 L49 B

180-GN
168-RD
(J) BLOCK AS. 2 200-BK 200-BK
403-GR-18

L76

L59
892-BR-18
893-YL-18

CONN 2
J726-YL
106-RD

GROUND STRAP (23) DISCONNECT

200-BK

121-1023 506-PU-18 MOTOR 308-YL 1 166-BR CONSOLE(RH)

167-3583 SW L51
304-WH-8

L80
109-RD-4

101-RD-4

108-RD-4

CONN 3 954-GN CAB

M748-OR-18

M743-GN-18

7N-70719
M745-BU-18

M747-PU-18

(15) WASHER G
M744-PK-18
H792-BR-18

M746-YL-18

F716-WH

A770-PK-18
C
A
B

893-GN-18
130-RD-14

646-RD-18
304-WH-8
892-BR-18

ATCH
235-BK-14

169-PK-18
A588-GN

109-RD-4
101-RD-4

180-GN 135-BU-14
151-GN
L58

105-RD
184-RD

322-GY
147-PU

616-BU
607-PK

7T-8890

G976-BU-18

A893-OR-18
D D

412-BU-18

506-PU-18
D 12V 10A SOCKET 210-BK-14 615-YL 615-YL 615-YL 615-YL ATCH

147-PU

578-BU
200-BK
T 430-BU-18 117-2311 G 615-YL 200-BK 200-BK CAB LAMP
L38
11

10

12
8

5
6
9

2
1

1
2
12
(NOTE C) G Y Y 167-3441

10

11
3

7
4
RELAY PANEL G976-BU-18

7
9
1
4
2
6

5
3
L85
L86

412-BU-18 M743-GN-18 103-RD DOME LAMP

ATCH
308-YL

B B 135-BU-14 176-1986
506-PU-18 M744-PK-18 200-BK 200-BK

166-BR
L46 L70 L68 L68 12V 10A SOCKET 210-BK-14 G
L56 A
L59

200-BK M746-YL-18 117-2311 200-BK

CONN 6 CONN 7 G ATCH
578-BU M747-PU-18 200-BK-14 200-BK 615-YL 615-YL
L77

L70

L59 (NOTE C)
CHASSIS 147-PU 200-BK 200-BK 200-BK 200-BK CAB LAMP
L86 ATCH Y Y 167-3441
A893-OR-18 C569-YL-14 200-BK 200-BK-18

L70
L76 G G

L38
12V 10A SOCKET 229-BK-14 G CAB 200-BK-18 (G) WINDOW
117-2311 G A584-BU-18 LIMIT SW

L27

L23
L70 L70 L70 L70 (NOTE C) 117-6306
L77 L77

L77

L27

L23
L36

L46
L38

L62

L24
L68

L35
L18

L25

L26
L56 L7 L7
308-YL
308-YL 308-YL
L85 L36 (11) MONITOR
A893-OR-18
H705-BR-18

A770-PK-18
123-WH-18
L62
893-GN-18

113-OR-18

124-GN-14

150-OR-18
130-RD-14

646-RD-18

175-RD-14

320-RD-18

645-RD-18
F716-WH
304-WH-8

892-BR-18

A278-BK
N N G
235-BK-14

169-PK-18
A588-GN

CONN 20
101-RD-4
109-RD-4

191-WH

403-GN-18 195-8867
307-OR

151-GN

L36
322-GY

184-RD

103-RD

118-GY

189-RD
105-RD
154-RD
616-BU

179-BU

152-BU
129-BU
166-BR
607-PK

607-PK
120-YL

615-YL

308-YL
615-YL

166-BR
200-BK A G GND 2 201-BK-18 2 201-BK-18
2 229-BK-14 G ACC 3 169-PK-18 3 169-PK-18

L7
L27 CIGAR L7
1 C569-YL-14 129-BU LIGHT 7 607-PK 7 607-PK
21 210-BK-14 G 200-BK LIGHTER CDL + 5 893-GN-18 5 893-GN-18
20 135-BU-14 1 410-WH-18 9W-0335 CDL - 6 892-BR-18 6 892-BR-18
L6
200-BK-14 200-BK-14 14 200-BK-14 2 235-BK-18 +B 1 103-RD 1 103-RD

169-PK-18
+ -
L44

L41

L36

200-BK-14 12 200-BK-14 403-GN-18 (A) SERVICE +12V 4 4 152-BU

607-PK
CONN 13 6 (G) ACTION ALARM 8 8 535-BU
L36 G METER
A278-BK 7 132-1829 6T-7337
B A
235-BK-14 18 8 200-BK-18 CONN 31

410-WH-18

403-GN-18
235-BK-18
A893-OR-18 37 9 535-BU 152-BU

129-BU
L41 L41
F 184-RD 23 18 191-WH G G F

L23
L40
403-GN-18 403-GN-18 892-BR-18 24 5
L85 L85 L85 (G) ATCH UNDER
893-GN-18 34 4
147-PU F889-WH-18 35 15 307-OR (G) WIPER CONT WINDOW LIMIT SW MOTOR
L11 155-7042 G 129-6466 G
147-PU 147-PU L973-GN 38 16 310-PU

L38

L26
L44

L46
M736-BU-18 45 308-YL A537-PK-18 3 L973-GN WIPER CUT 3 A584-BU-18 A579-OR
403-GN-18 33 K851-BU-18 576-PK-18 19 123-WH-18 W. CCW 1 A579-OR A580-BR
L46 L46
K907-BU-18 31 H473-BR-18 535-BU 17 576-PK-18 W. CW 2 A580-BR A581-GN
147-PU
308-YL

L39 L39 L39 L26

L969-WH-18 5 K849-YL-18 575-YL-18 10 607-PK-18 REV 13 A581-GN A582-PU

L62
(4) ENG CONT

L40
893-GN-18 L968-OR-18 6 K852-GN-18 307-OR 11 607-PK-18 607-PK STOP 12 A582-PU 200-BK
157-3165 B L35
892-BR-18 H466-BU-18 4 H476-WH-18 235-BK-18 13 607-PK 607-PK INT(6) 4 A586-OR-18
L47 (A) WIPER
1 403-GN-18 H465-GN-18 3 H475-BU-18 169-PK-18 INT(3) 9 590-GY-18
L30 L30
430-BU-18

(G) A/C PHOTO MOTOR

235-BK-18

ANALOG SENSOR POWER 2 L973-GN 184-RD H467-WH-18 2 H474-GN-18 607-PK LOW 8 501-GN-18
L40 SENSOR 161-3667
ANALOG SENSOR RETURN 3 892-BR-18 892-BR-18 892-BR-18 410-WH-18 32 235-BK-18 166-BR CONN 19 WASH 7 530-OR-18 Y/G
167-7083

L24

L25
THROTTLE POWER 4 893-GN-18 893-GN-18 893-GN-18 892-BR-18 7 L972-BU-18 ACC 6 118-GY
L45

A G
6 F889-WH-18 893-GN-18 893-GN-18 893-GN-18 11 A755-PK-18 615-YL 9 615-YL 235-BK-18 RISE. S 11
7 (E) ACL SW L973-GN 893-GN-18 893-GN-18 893-GN-18 K849-YL-18 12 A756-BU-18 123-WH-18 13 169-PK-18 410-WH-18 GND 10 200-BK C538-OR-18

L11
10 154-0498 403-GN-18 892-BR-18 892-BR-18 K851-BU-18 13 A757-GY-18 615-YL 16 166-BR 129-BU WA+ 5 506-PU-18 Y/W C537-GN-18 L5
L12 G
11 M736-BU-18 892-BR-18 892-BR-18 892-BR-18 K852-GN-18 14 A758-BR-18 118-GY 15 615-YL 615-YL 403-GN-18
L30 L25 G
12 K907-BU-18 H473-BR-18 10 F773-OR-18 646-RD-18 12 118-GY 506-PU-18

F889-WH-18
F889-WH-18

403-GN-18
403-GN-18
403-GN-18
B B

L973-GN
L973-GN
13 L969-WH-18 H476-WH-18 9 F774-WH-18 113-OR-18 7 H466-BU-18 645-RD-18 A586-OR-18 4 W. INT(6)
L18
14 L968-OR-18 H475-BU-18 8 M736-BU-18 129-BU 1 H465-GN-18 590-GY-18 5 W. INT(3)
L76

15 H466-BU-18 H474-GN-18 46 K907-BU-18 152-BU 14 M741-GY-18 501-GN-18 14 W. LOW

L9 L9
16 H465-GN-18 L972-BU-18 47 L969-WH-18 103-RD 2 M742-PU-18 530-OR-18 17 WASH
L77

L68
L45 L29

L6
17 H467-WH-18 A755-PK-18 48 L968-OR-18 645-RD-18 11 M734-BR-18 200-BK 200-BK 645-RD-18 2 L. BOOM
L44 (1) ENG/PUMP CONT
18 410-WH-18 A756-BU-18 44 A769-GY-18 191-WH 10 646-RD-18 200-BK-18 200-BK-18 200-BK-18 20 GND
L76 J2 211-5573 J1

L12
20 A757-GY-18 43 A768-BU-18 8 H467-WH-18 3

L39
L77
235-BK-14
235-BK-18

200-BK-18

200-BK-14

201-BK-18
21 17 OPTION V SW(2) 49 A758-BR-18 42 K906-GN-18 H466-BU-18 5 575-YL-18 12

200-BK

200-BK

200-BK
200-BK
SHARED WITH TDC CAL 24 K907-BU-18 4 SWING BK CANCEL SOL SW RETURN 6 M741-GY-18 30 H465-GN-18 4 113-OR-18 113-OR-18 13
SHARED WITH TDC CAL 25 200-BK L969-WH-18 7 PS CONT PRV 44 M742-PU-18 29 780-PU-18 M741-GY-18 17 113-OR-18 15

L38
F889-WH-18

K849-YL-18
403-GN-18
L973-GN
26 L968-OR-18 19 PRV RETURN(1) 34 M734-BR-18 36 998-BR-18 M742-PU-18 18 16
L10
27 H466-BU-18 14 AEC MODE IND 35 308-YL 22 F889-WH-18 M734-BR-18 3 586-BR 118-GY 11 TRAVEL MODE IND 2

954-GN
L10
29 H465-GN-18 24 TRAVEL ALM CANCEL IND 15 E480-WH-18 20 H466-BU-18 H467-WH-18 6 A537-PK-18 G H466-BU-18 19 AEC MODE IND
L55

K849-YL-18

L9
30 H467-WH-18 15 TRAVEL MODE IND 3 578-BU 19 H465-GN-18 410-WH-18 CAB H465-GN-18 18 ALARM CANCEL IND
JJ A G
E 31
32 2
P
G850-BU-18
410-WH-18
M736-BU-18
23 FAULT ALM
BKUP SW
25 506-PU-18
E554-PK-18
15
16
M741-GY-18
M742-PU-18
893-GN-18
892-BR-18
2
7
410-WH-18
129-BU
M741-GY-18
M742-PU-18
8
7
ALARM CANCEL SW
AEC MODE SW
E
47 24
RD-00

RD-00
BK-00

BK-00

L55 L12 L9
33 1 C987-RD-18 403-GN-18 35 ALT R TERM CREEPER TRAVEL FUNCTION SW 17 F773-OR-18 17 M734-BR-18 310-PU 1 403-GN-18 M734-BR-18 6 TRAVEL MODE SW

L68
L8
34 HH L973-GN 6 FREE SWING AIR HEATER CONTROLLER 4 F774-WH-18 21 H467-WH-18 578-BU 3 506-PU-18 646-RD-18 1 L. CHASSIS

L81
GG L28 L11

L5
35 RD-00 RD-00 108-RD-4 AIH F889-WH-18 44 GOV COMMAND 37 T A769-GY-18 49 410-WH-18 506-PU-18 8 645-RD-18 A537-PK-28 H467-WH-18 10 TRAVEL MODE IND 1
CC BB AA B L10
235-BK-14
235-BK-18

36 763-BU-18 2 TRAVEL SP CHG SOL 36 A768-BU-18 41 893-GN-18 403-GN-18 12 235-BK-18 586-BR 113-OR-18 9 +B
37 (23) HEATER RELAY 788-YL-18 SP SNSR(-) K906-GN-18 40 892-BR-18 10 893-GN-18 575-YL-18

4
16 27

5
3

1
NEG POS NEG POS NEG POS NEG POS

123-WH-18
(G) SWITCH PANEL

607-PK-18

576-PK-18
209-5582

L973-GN

191-WH
38 A762-PU-18 25 SP SNSR(+) 26 780-PU-18 53 310-PU L973-GN 9 892-BR-18

307-OR
310-PU
K852-GN-18
CONN 9

K851-BU-18
L8

K849-YL-18
893-GN-18
892-BR-18
39 M740-PK-18 1 TRAVEL STR SOL OPTION SW 7 998-BR-18 51 578-BU 586-BR 6 152-BU 163-6701
L46

184-RD
(5) ATCH BATTERY (5) BATTERY L48 L69
40 M737-WH-18 8 FLOW LIMIT PRESS PRV OPTION SW 8 235-BK-18 50 506-PU-18 5 535-BU
41 3T-5760 3T-5760 M738-OR-18 9 PRIM NFC PRESS PRV AUTO LUB FAILURE 5 52 403-GN-18 4 578-BU
L39

L47

147-PU
147-PU
147-PU
42 ALT 321-BR-18 13 TRAVEL ALM SPL FLTR PLUGGED 52 28 L973-GN 11 103-RD 103-RD 893-GN-18
+

L23
43 109-RD-4 R 403-GN-18 M739-YL-18 20 PRV RETURN(2) F SEC FLTR PLUGGED 51 Z 25 CONN 18 103-RD 103-RD
L8 L8
892-BR-18
L6
44 B B 495-GN-18 30 FUEL LEVEL F PRIM FLTR PLUGGED 38 26 103-RD
45 (4) ALTERNATOR K904-GN-18 PUMP DISCH (1) PRESS SNSR CAPSULE FLTR PLUGGED 487-OR-18 27 152-BU

4
37 42

5
3

1
6

2
185-5294 B L39
46 200-BK-4 491-PK-18 39 HYD OIL TEMP SNSR HYD. OIL LEVEL SW 32 496-WH-18 B 54 586-BR 535-BU 535-BU
L44

L45

S G
47 T967-YL-18 45 PUMP DISCH (2) PRESS SNSR ENG OIL PRESS SW 41 405-GY-18 1 E554-PK-18 A M744-PK-18 578-BU 535-BU

184-RD
184-RD
L68
49 46 O.L.W.D PRESS SNSR ENG OIL LEVEL SW 40 C468-BU-18 39 B M746-YL-18

K852-GN-18

K852-GN-18
K852-GN-18
K850-BR-18

K851-BU-18

K851-BU-18
K851-BU-18
L62

K849-YL-18

K849-YL-18
K849-YL-18
893-GN-18

893-GN-18
893-GN-18
892-BR-18

892-BR-18
892-BR-18
50 36 GOV FDBK GND 14 235-BK C M747-PU-18
51 B 3 GND 2 235-BK
54 (24) A/C CLUTCH 2 200-BK-18 780-PU-18 780-PU-18 26 OPTION V SW(1) 50 535-BU-18 535-BU
55 SOL 1 E554-PK-18 780-PU-18 11 OPTION CONT PRV(1) 54 535-BU-18
L77

56 113-3499 12 OPTION CONT PRV(2) +B 13 184-RD

L28
L69
57 B 21 PRV RETURN(3) +B 1 184-RD L5
L76

58 (12) ENG OIL 2 235-BK-18 10 FAN MOT CONT PRV ACL PLUGGED 48 430-BU-18
LEVEL SW L38
USER DEFINED SHUTDOWN 59 F716-WH 1 C468-BU-18 22 PRV RETURN(4) WTR SEPARATOR LEVEL SW 47 G976-BU-18 CAB
111-4759 L24 W
60 40 SNSR RETURN COOL. LEVEL SW 31 412-BU-18

A537-PK-18
123-WH-18

535-BU-18

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

200-BK-18
200-BK-18

607-PK-18
607-PK-18

200-BK-18
200-BK-18

607-PK-18
607-PK-18

200-BK-18
200-BK-18

607-PK-18
607-PK-18

200-BK-18
200-BK-18

607-PK-18
607-PK-18

200-BK-18
200-BK-18

607-PK-18

576-PK-18
200-BK-18
200-BK-18
575-YL-18
L973-GN

191-WH
62 28 ATCH STEM 2 SWING CANCEL 18 K850-BR-18 24V 103-RD

307-OR
L55

310-PU

586-BR

147-PU

578-BU

C537-GN-18
C538-OR-18
64 B 5 HEATER RLY/STARTER RLY CAT DATA LINK(-) 43 892-BR-18 892-BR-18 IGN 113-OR-18
(F) ENG SPEED

E554-PK-14

124-GN-14
L44

L45

L39

L47

L33

175-RD-14

200-BK-14
200-BK-14
L46

L48

67 WH-18 1 788-YL-18 18 CAT DATA LINK(+) 33 893-GN-18 893-GN-18 12V 592-BU-18

607-PK
L55 PICKUP L31 L31
-B 61 229-BK-14 189-5746 BK-18 2 A762-PU-18 31 ANLG SNSR RETURN ATCH STEM 1 SWING CANCEL 28 K849-YL-18 K849-YL-18 MEM A513-RD-18
-B 63 229-BK-14 229-BK-14 29 COOL TEMP SNSR ATCH STEM 3 SWING CANCEL 45 K851-BU-18 K851-BU-18 GND 200-BK-18
B G G G G ABBREV COLOR

L29
M737-WH-18

-B 65 229-BK-14 304-WH-8 52 +12V SPLY ATCH STEM 4 SWING CANCEL 46 K852-GN-18 K852-GN-18 G G
M738-OR-18
F889-WH-18

F774-WH-18
M740-PK-18

K904-GN-18

K906-GN-18
C468-BU-18

F773-OR-18

A769-GY-18

(A) ATCH
A762-PU-18

M739-YL-18

A768-BU-18
H705-BR-18

E554-PK-18
496-WH-18

G S
T967-YL-18
487-OR-18

893-GN-18

403-GN-18

495-GN-18
130-RD-14

405-GY-18
304-WH-8

506-PU-18

892-BR-18

763-BU-18

321-BR-18

780-PU-18

998-BR-18

G
235-BK-18

491-PK-18
A588-GN

788-YL-18
L973-GN
101-RD-4
109-RD-4

+B 48 130-RD-14 54 OVER LOAD ALM CANCEL SW 16 E480-WH-18 A

322-GY
616-BU

147-PU

578-BU
607-PK

200-BK

CONVERTER
308-YL

B NOTE C NOTE C RD RED

+B 52 130-RD-14 130-RD-14 101-RD-4 48 OPTION PWM IN(1) TRAVEL STR PRESS SW 53 H473-BR-18 CONN 17
D AA 134-1346 W D

5
4

2
6
MTRBAT WH WHITE

1
+B 53 130-RD-14 RD-00 34 JOYSTICK PRESS SW 29 H476-WH-18 W
GG L82 OR ORANGE
68 RD-00 33 TRAVEL LEFT PRESS SW 30 H475-BU-18 4 7 103-RD
C468-BU-18
A762-PU-18

E554-PK-18
403-GN-18
304-WH-8

YL YELLOW
788-YL-18
101-RD-4

109-RD-4

BR
69 130-RD-14 TRAVEL RIGHT PRESS SW H474-GN-18 CONV(MEM) 5 A513-RD-18 1 113-OR-18

R/L
43 39

B
B
MOTOR PK PINK
FUEL PUMP RELAY 19 H705-BR-18 49 ONE TOUCH LO IDEL SW 11 L972-BU-18 CONV(OUT) 6 592-BU-18 6 607-PK
(12) STARTER L29 L29 BK BLACK
235-BK-18
200-BK-18

235-BK-14
235-BK-16
235-BK-14
235-BK-18
200-BK-18
A278-BK

THROTTLE RETURN 5 998-BR-18 THRT POS 1 A755-PK-18 509-WH-18 509-WH-18

200-BK-4

50 9 LH SPKR(-) 1 3
CAT DATA LINK + 8 893-GN-18 MOTOR 51 THRT POS 2 10 A756-BU-18 RH SPKR(-) 7 512-GN-18 5 512-GN-18 GY GRAY
104-7040 L23 PU PURPLE
CAT DATA LINK - 9 892-BR-18 32 THRT POS 3 19 A757-GY-18 LH SPKR(+) 2 508-PU-18 8 508-PU-18
L42 BR BROWN
M737-WH-18

THROTTLE BACKUP (ACCEL) 22 F773-OR-18 41 THRT POS 4 20 A758-BR-18 780-PU-18 RH SPKR(+) 8 511-BR-18 10 511-BR-18
M738-OR-18

L33
F774-WH-18

F889-WH-18
H705-BR-18

K906-GN-18
M740-PK-18

K904-GN-18
C468-BU-18

F773-OR-18

A769-GY-18
A762-PU-18

A768-BU-18

M739-YL-18
E554-PK-18

496-WH-18

T967-YL-18
403-GN-18

893-GN-18

487-OR-18

495-GN-18
405-GY-18
130-RD-14
304-WH-8

892-BR-18

998-BR-18

763-BU-18

780-PU-18

321-BR-18

506-PU-18

GROUND STRAP GN GREEN

491-PK-18

235-BK-18
A588-GN
788-YL-18

L973-GN
101-RD-4

109-RD-4

THROTTLE BACKUP (DECEL) 23 F774-WH-18 42 TRAVEL ALM CANCEL SW 22 M741-GY-18 E554-PK-18 GND 3 200-BK-18 9 C560-OR-18
322-GY
616-BU

147-PU

578-BU
200-BK

607-PK
308-YL

LOW OIL PRESSURE OUTPUT 28 405-GN-18 128-8886 53 AEC MODE SW 12 M742-PU-18 F773-OR-18 4 C566-PK-18 (G) SW PANEL BU BLUE
L43

12 VDC RADIO (D) ATCH FINE (B) ATCH LOWER

THROTTLE 66 F889-WH-18 38 TRAVEL MODE SW 21 M734-BR-18 F774-WH-18
173-6532 2 200-BK-18 (B) ATCH LOWER A/C HEATER
L33 L28 (A) A/C UNIT SWING CONT SW WASHER SW 168-4605 SYMBOL DESCRIPTION
IGNITION KEY SW 70 308-YL 27 KEY SW ON 23 308-YL A769-GY-18 WIPER SW
229-BK-14 Z T B B A768-BU-18 168-4604 G 163-6722 163-6719 163-6718
L42

ENG CONT GND STRAP 200-BK K906-GN-18 BLADE, SPADE, RING,

CHASSIS L33 OR SCREW TERMINAL
L37

998-BR-18
L43

L42

L21

ENG BLOCK L37 L37

578-BU CAB CAB
L42 506-PU-18 OPERATOR STATION CIRCUIT CONNECTED
CONN 29

L62
L69
L81
L82

L21 L21 L21 ANTENNA B K CIRCUIT NOT CONNECTED

INLET AIR HTR RLY COMMON 9 C987-RD-18 616-BU
L55 167-3492 ATCH
L77

INLET AIR HTR RLY 12 G850-BU-18 616-BU 616-BU 1 616-BU 616-BU

15 235-BK-18 322-GY 200-BK 2 200-BK 200-BK BOOM LAMP ELECTRICAL CONNECTION
L21 153-2521 TO MACHINE STRUCTURE
30 235-BK-18 235-BK-18 M740-PK-18 607-PK 200-BK
L22 L22 L1
L76

63 235-BK-18 235-BK-18 B K906-GN-18 322-GY 1 J

R (2) INJECTOR (20) TRAVEL Z K INTERNAL ELECTRICAL
10 A706-GY-18 1 2 235-BK-18 763-BU-18 235-BK-18 200-BK 2
SOL 6 B STRAIGHT SOL (10) ATCH TOOL L2 B M CONNECTION TO SURFACE
11 L985-YL-18 2 1 M740-PK-18 A588-GN +B YL-18 A 308-YL
(20) TRAVEL 2 121-1491 PRESS. OF COMPONENT

M737-WH-18
8 235-BK-18 200-BK-18 SIGNAL BR-18 C E469-YL-18 147-PU

M738-OR-18

200-BK
200-BK
CONN 30

M740-PK-18
K906-GN-18

K904-GN-18
A769-GY-18
A768-BU-18

M739-YL-18
CONN 5

496-WH-18
R L67

T967-YL-18
487-OR-18

495-GN-18
763-BU-18

780-PU-18

321-BR-18
(2) INJECTOR SPEED SOL B (6) ATCH SEPARATE

235-BK-18

491-PK-18

235-BK-18
A588-GN
SENSOR

L973-GN
13 L985-YL-18 1 1 763-BU-18 GROUND BK-18 B 235-BK-18 K904-GN-18

322-GY
147-PU

616-BU
200-BK

607-PK
4 R A705-BU-18 2 SOL 5 121-1491 (20) SWING 1 K906-GN-18 VALVE SOL K855-PK-18 T967-YL-18 200-BK ATCH CONNECTOR

L22
P L4
INJECTOR 6 55 A706-GY-18 6 B BRAKE SOL 2 235-BK-18 111-9916 K867-YL-18 M738-OR-18 616-BU BOOM LAMP
R (2) INJECTOR (20) HYD LOCK 121-1491 Z 153-2521 GOLD TERMINAL
INJECTOR COMMON 5&6 46 L985-YL-18 L985-YL-18 8 A704-GN-18 1 1 A588-GN M737-WH-18
SOL 4 SOL L3
5 L985-YL-18 7 L984-OR-18 2 2 200-BK-18 1 K855-PK-18 M739-YL-18
121-1491 J ATCH WIRE, CABLE,
INJECTOR 5 54 A705-BU-18 5 2 K867-YL-18 491-PK-18
R (2) INJECTOR K COMPONENT
INJECTOR 4 39 A704-GN-18 4 L984-OR-18 1 495-GN-18
C INJECTOR COMMON 3&4 45 L984-OR-18 L984-OR-18 10 A703-BR-18 2 SOL 3
L76 L76 L76
321-BR-18 C
6 L984-OR-18 9 496-WH-18 L# CIRCUIT GROUPING
M

200-BK
200-BK
R (2) INJECTOR L4 HORN DESIGNATION
INJECTOR 3 38 A703-BR-18 3 A702-PU-18 1 487-OR-18 322-GY
SOL 2 (25) ATCH BOOM DOWN S (18) FINE SWING SOL 7T-0970
INJECTOR 2 37 A702-PU-18 2 L983-WH-18 2 780-PU-18 200-BK
LINE OUT OFF SOL 107-7056
INJECTOR COMMON 1&2 44 L983-WH-18 L983-WH-18 12 2 200-BK-18 200-BK-18 A768-BU-18
R (2) INJECTOR (S1) S L64 L64 IDENT PART NO. LOC NOTE
7 L983-WH-18 11 L983-WH-18 1 1 M748-OR-18 M745-BU-18 A769-GY-18 322-GY
INJECTOR 1 36 A701-GY-18 1 A701-GY-18 2 SOL 1 185-0472 M748-OR-18 M748-OR-18 1 (H) ATCH BOOM M749-WH-18 L973-GN L973-GN 1 322-GY HORN
L77 L77 DOWN PRESS. SW (1) ATCH 7T-0970 HARNESS AS.
17 M745-BU-18 M745-BU-18 2 200-BK 2 200-BK
47 G826-BR-18 E
H792-BR-18 M745-BU-18 167-3466 Z VALVE CONT 211-5577 Z B 200-BK
P M A 214-0048 G-3
OIL PRESSURE SENSOR +5V 41 G826-BR-18 G826-BR-18 A OR +5V (2) ENG OIL PRESSURE 4 +B 1 C987-RD-14
ENG OIL PRESSURE 24 C990-YL-18 C990-YL-18 C WH SENSOR SIGNAL SENSOR 5 +B 13 C987-RD-14 C987-RD-14 235-BK-18 235-BK-18 B 231-5236 A-2
L76 L67
OIL PRESSURE SENSOR RTN 42 G827-BU-18 G827-BU-18 B BK SENSOR COMMON 194-6725 6 INTER LOCK 53 151-GN 151-GN 235-BK-18 235-BK-18 C 197-4328 A-4
D 231-5256 G-8
L81

19 11 KEY SW 23 308-YL 308-YL M740-PK-18

P E 170-6959 I-3
29 G827-BU-18 B YL SENSOR COMMON (2) FUEL PRESSURE 15 4 308-YL K906-GN-18

K855-PK-18
L22

K867-YL-18

E469-YL-18
F 186-4624 G-1

235-BK-18
FUEL PRESSURE 16 C991-PK-18 C991-PK-18 C GN SENSOR SIGNAL SENSOR 17 STEM1 EXTEND SW 9 763-BU-18

308-YL

L2
31 G826-BR-18 A OR +5V 194-6725 20 STEM1 RETRACT SW 10 A588-GN 200-BK B G 198-5959 D-1
L69

L3

L1
20 21 STEM2 EXTEND SW 19 200-BK-18 200-BK-18 200-BK J 186-4617 C-1

L64
21 S 24 STEM2 RETRACT SW 20 235-BK-18 200-BK-18 200-BK K 186-4618 C-1 NOTE A
L74

(H) ATCH UP/DOWN L64 L 170-6828 G-1

26 G828-WH-18 M749-WH-18 2 32 STEM3 RETRACT SW 12 200-BK-18
L62

28 G828-WH-18 H792-BR-18 1 PRESS. SW 49 STEM3 EXTEND SW 11 K843-GN-18 S M 163-6750 C-2

P 168-7557 L62 N 163-6810 F-1
ENG PRESS SENSOR +5V 2 G828-WH-18 G828-WH-18 A OR +5V (2) ATMOSPHERIC 27 STEM4 EXTEND SW 21 K844-GY-18 200-BK-18
L64 CHASSIS P 195-7336 A-12
ATMOSPHERIC PRESSURE 14 R747-GY-18 R747-GY-18 C GN SENSOR SIGNAL PRESS. SNSR 31 STEM4 RETRACT SW 22 K848-WH-18 308-YL M749-WH-18
K857-WH-18
K861-GN-18

K863-OR-18
K862-GY-18
K868-BR-18
K860-BU-18

K869-BU-18

K859-BR-18

K856-PU-18

L3
K858-YL-18

ENG PRESS SENSOR RTN 3 G829-GN-18 G829-GN-18 B YL SENSOR COMMON 194-6722 34 5 E474-OR-18 308-YL 308-YL M745-BU-18 R 153-8920 C-11
33 G829-GN-18 G829-GN-18 42 6 E473-GY-18 308-YL 235-BK-18 S 204-1609 B-4
P L71 L3 L2 T 183-1020 H-2 NOTE D
1 G829-GN-18 B BK SENSOR COMMON (2) INJ ACTUATION 43 7 E476-PU-18 147-PU
INJ ACTUATION PRESSURE 27 G849-BR-18 G849-BR-18 C WH SENSOR SIGNAL PRESS. SNSR 44 8 E475-PK-18 K867-YL-18 Z (25) ATCH BOOM S U 183-0998 A-6
L74 (13) ATCH CHECK SOL1 V 204-1672 G-12
67 G828-WH-18 A OR +5V 194-6726 K858-YL-18 9 ATCH STEM3 CONT PRV(A) 16 E472-GN-18 K855-PK-18 235-BK-18 B GROUND 1 M745-BU-18
L73 SQUEEZE (EC1) W 167-3527 D-4
A +B

M737-WH-18
53 K857-WH-18 18 ATCH STEM2 CONT PRV(A) 51 235-BK-16 E469-YL-18 308-YL 2 200-BK-18

M738-OR-18
K904-GN-18

A769-GY-18
M739-YL-18

A768-BU-18
496-WH-18
P L65

T967-YL-18
PRESS SENSOR

495-GN-18

487-OR-18
190-7770

321-BR-18
780-PU-18
X 192-4748 I-5 NOTE C

491-PK-18

235-BK-18
43 G829-GN-18 B YL SENSOR COMMON (2) TURBO OUTLET K856-PU-18 28 ATCH STEM1 CONT PRV(A) 52 M906-BU-18 M906-BU-18 C SIGNAL 200-BK-18
L73

147-PU
L66 157-8182 Y 167-3456 G-1
TURBO OUTLET PRESSURE 40 R746-PK-18 R746-PK-18 C GN SENSOR SIGNAL PRESSURE SENSOR K868-BR-18 39 SOL GND2 17 K877-BU-18 200-BK-18 200-BK-18
50 G828-WH-18 A OR +5V 194-6723 K862-GY-18 19 ATCH STEM3 CONT PRV(B) 18 K864-PK-18 Z 186-4637 I-1
51 K861-GN-18 29 ATCH STEM2 CONT PRV(B) 26 K870-GN-18 Z (25) ATCH BOOM S
(6) ATCH STEM 4 L74 (18) ATCH CHECK SOL2

235-BK-18
235-BK-18
235-BK-18
235-BK-16
52 K860-BU-18 8 ATCH STEM1 CONT PRV(B) 27 K865-PU-18 235-BK-18 2 2 200-BK-18
CONT SOL(B) RELIEF (EC2) B B
25 (2) ENG OIL TEMP K859-BR-18 30 ATCH STEM4 CONT PRV(A) GND 2 235-BK-14 K866-WH-18 K877-BU-18 1 CHECK SOL2 1 M749-WH-18
P
B OIL TEMP 34 F441-GN-18 F441-GN-18 1 GN SENSOR SIGNAL PASSIVE SENSOR 111-9916 Z K869-BU-18 40 SOL GND3 GND 14 235-BK-14 K876-BR-18
165-9560
165-9560 B

11
CONN 16

12
10
CONN 15

3
4
Z

2
ENG TEMP SENSOR RTN 18 G833-PK-18 G833-PK-18 2 YL SENSOR COMMON 191-6587 K863-OR-18 1 K863-OR-18 10 ATCH STEM4 CONT PRV(B) RS422 RX+ 3 235-BK-14

8
6
5
7
3
1
2
4
56 G833-PK-18 G833-PK-18 K869-BU-18 2 Z E470-BR-18 35 NEG CONT PRESS SNSR1 RS422 RX- 15 K864-PK-18 1 C WIRE AS.
(6) ATCH STEM 4 (18) ATCH C
57 CONT SOL(A) 1 K859-BR-18 E471-BU-18 45 NEG CONT PRESS SNSR2 RS422 TX+ 24 K870-GN-18 K870-GN-18 2 RELIEF SOL1
P L73
COOLANT TEMP 32 995-BU-18 995-BU-18 1 GN SENSOR SIGNAL (2) COOLANT TEMP 111-9916 2 K869-BU-18 K853-GY-18 47 PUMP1 F1 F CONT PRV RS422 TX- 25 K870-GN-18 112-0090
NN 183-1011 H-10
L65

SENSOR COMMON SENSOR Z PP 111-4829 H-10

L73

60 G833-PK-18 2 YL K854-OR-18 48 PUMP2 F1 F CONT PRV SNSR GND 28

130-9811 RR 183-1012 H-10

M737-WH-18
69 K862-GY-18 1 K867-YL-18 52 ATCH STEM1 NEUTRAL 31

M738-OR-18
K904-GN-18
A769-GY-18
A768-BU-18

M739-YL-18

496-WH-18
P
SENSOR SIGNAL (2) INTAKE AIR TEMP

T967-YL-18

487-OR-18

495-GN-18
780-PU-18

321-BR-18
Z SS 163-6780 I-7

235-BK-18

491-PK-18

235-BK-18
INTAKE AIR TEMP 35 G853-OR-18 G853-OR-18 1 GN K869-BU-18 2 K867-YL-18 53 ATCH STEM2 NEUTRAL 32

147-PU
(6) ATCH STEM 3
64 G833-PK-18 2 YL SENSOR COMMON SENSOR CONT SOL(A) 1 K858-YL-18 K867-YL-18 38 PRV RETURN(1) RS232 RX 34
K854-OR-18
K853-GY-18
E470-BR-18
E471-BU-18

K867-YL-18

130-9811 (6) ATCH STEM 3 Z

235-BK-18

65 111-9916 2 K869-BU-18 K867-YL-18 50 RS232 TX 35 (18) ATCH

308-YL

P (2) DUAL CAM CONT SOL(B) 2

TOP CAM S/T - 49 E963-BK-18 E963-BK-18 A GN S/T - K867-YL-18 51 ATCH STEM3 NEUTRAL 41 K870-GN-18
L66

RELIEF SOL2
TOP CAM S/T + 48 E964-WH-18 E964-WH-18 B YL S/T + SP/TMG SNSR(HI) 111-9916 M906-BU-18 16 STEM1(SQUEEZE) PRESS SNSR ATCH STEM4 NEUTRAL 42 K865-PU-18 1 165-9560
66 169-3300 K869-BU-18 K869-BU-18 E469-YL-18 25 TOOL PRESS SNSR RS232 GND 44
P S/T - (2) DUAL CAM L19 CABLE AS.
BOTTOM CAM S/T - 59 E965-BU-18 E965-BU-18 A GN K869-BU-18 K869-BU-18 K855-PK-18 7 SEPARATE VALVE PRV MASK ENABLE 54
BOTTOM CAM S/T + 58 E966-YL-18 E966-YL-18 B YL S/T + SP/TMG SNSR(LOW) K869-BU-18 K866-WH-18 1 1WAY/2WAY CONT SOL 29 Z
68 169-3300 (6) ATCH STEM 2 K876-BR-18 2 RLF CHK V1 30 235-BK-18 2 (18) ATCH AA 204-1788 D-10
L78

P (2) FLY. TMG CAL CONT SOL(B) L66 1WAY/2WAY B BB 116-0080 E-11
TIMING CAL PROBE + 22 G856-WH-18 G856-WH-18 1 GN TCD + K877-BU-18 3 RLF CHK V2 36 K866-WH-18 1
L82

SENSOR 111-9916 Z CONT SOL CHASSIS CC 197-4435 G-9

TIMING CAL PROBE - 23 G857-YL-18 G857-YL-18 2 YL TCD - K864-PK-18 12 ATCH1 RLF PRV 37 165-9560 200-BK
70 6V-2197 K861-GN-18 1 K865-PU-18 22 ATCH2 RLF PRV 38 Z 607-PK LAMP DD 197-4353 H-9
P Z 153-2523 EE 197-4302 H-9

235-BK-18
235-BK-18
IAP CONTROL VALVE 61 G854-PK-18 G854-PK-18 1 GN IAPCV (F) IAP CONTROL K868-BR-18 2 K870-GN-18 41 SOL GND4 39 K876-BR-18 1 (18) ATCH RELIEF
L65

(6) ATCH STEM 2 FF 197-4304 H-9

IAPCV COMMON 62 G855-PU-18 G855-PU-18 2 YL COMMON VALVE 1 K857-WH-18 E474-OR-18 26 ATCH STEM2 MODULATION 40 235-BK-18 235-BK-18 235-BK-18 2 CHECK SOL1
P CONT SOL(A) L65 GG 197-4326 D-10 NOTE D
122-5053 2 K868-BR-18 E473-GY-18 36 ATCH STEM1 MODULATION 45 308-YL 235-BK-18 165-9560
Z 111-9916 L71 HH 116-0080 E-12 NOTE D
E476-PU-18 37 ATCH STEM4 MODULATION 46 235-BK-18
Z K860-BU-18 1 E475-PK-18 46 ATCH STEM3 MODULATION CDL(+) 33 893-GN-18 JJ 186-4634 G-9 NOTE D
(E) ATCH NEGATIVE (6) ATCH STEM 1 Z C KK 213-0561 G-11
SIGNAL BR-18 C E470-BR-18 E470-BR-18 K868-BR-18 2 E472-GN-18 54 12V SPLY CDL(-) 43 892-BR-18
CONT PRESS. CONT SOL(A) L69 (10) HYD OIL LL 213-0837 G-11
+B YL-18 A 308-YL 308-YL 1 K856-PU-18 K849-YL-18 13 ATCH STEM1 49 K849-YL-18 1 496-WH-18
SENSOR 1 L78 (6) ATCH STEM 1 111-9916 L72 LEVEL SW
GROUND BK-18 235-BK-18 E471-BU-18 2 K868-BR-18 K852-GN-18 14 ATCH STEM4 50 K852-GN-18 200-BK-18 2 235-BK-18
157-3128 B
235-BK-18 CONT SOL(B) L72
K851-BU-18 23 ATCH STEM3 47 K851-BU-18 235-BK-18 C 170-9376 WIRE GROUP COLOR DESCRIPTIONS
K853-GY-18 111-9916 K850-BR-18 33 ATCH STEM2 48 K850-BR-18 780-PU-18 THIS SCHEMATIC IS FOR THE 325C-HYD EXCAVATOR.
WIRES THAT HAVE SYSTEM VOLTAGE WHEN THE KEY SWITCH IS OFF.
L71

Z L20 CHASSIS

235-BK-18
235-BK-18
235-BK-18
L65

308-YL K854-OR-18 K868-BR-18 K868-BR-18 A768-BU-18

(E) ATCH NEGATIVE L72 WIRES THAT HAVE SYSTEM VOLTAGE WHEN THE KEY SWITCH IS ON. COMPONENTS ARE SHOWN INSTALLED ON A FULLY
+B YL-18 A 308-YL 308-YL K867-YL-18 K868-BR-18 K868-BR-18 A769-GY-18
CONT PRESS. L71 OPERABLE MACHINE WITH THE KE Y AND ENGINE OFF.
SIGNAL BR-18 C E471-BU-18 K868-BR-18 K904-GN-18
L81

SENSOR 2
GROUND BK-18 235-BK-18 235-BK-18
L73 L73
147-PU
L19 VOLTAGE CONVERTER OUTPUT CIRCUIT.
157-3128 B C L66 L66 CONN 8
(19) ATCH QUICK (25) FUEL LEVEL C UNLESS OTHERWISE SPECIFIED ALL WIRE IS 16 GAGE.
COUPLER SOL
GN-18 2 200-BK-18 T967-YL-18 STARTING CIRCUIT.
SENSOR
A 1 K853-GY-18
235-BK-18
152-8346
GN-18 1 780-PU-18
L75
B
A
M738-OR-18
M737-WH-18
M738-OR-18
M737-WH-18 163-6700
YL
BK
1
2
495-GN-18
235-BK-18 GROUND CIRCUIT. A
Z L65 L65 L65
2 K867-YL-18 C M739-YL-18 M739-YL-18
L20

Z L82 U C STARTING AID CIRCUIT.

1 K854-OR-18 235-BK-18 487-OR-18
(E) ATCH PUMP 2 (E) POWER SHIFT L82 WIRE PAIRS OF 892-BR & 893-GN MUST BE TWISTED
(E) ATCH PUMP 1 2 K867-YL-18 K867-YL-18
CONT SOL
1 A768-BU-18 200-BK-18 200-BK-18 491-PK-18 CAT DATA LINK CIRCUIT.
FLOW CONT SOL FLOW CONT SOL 2 A769-GY-18 780-PU-18 T AT LEAST 1 TURN PER 25mm.
171-0114 171-0114 K867-YL-18
111-9916
C A768-BU-18 T 2 235-BK-18 235-BK-18 235-BK-18 C ENGINE CONTROL CIRCUIT (MASTER ).
L81 L81
147-PU A769-GY-18 2 200-BK-18 1 K849-YL-18 235-BK-18 (3) ATCH 2 235-BK-18 ENGINE PUMP CONTROL CIRCUIT.
L20 L81 NOTE A: USE WITH SHORT BOOM.
K904-GN-18 1 954-GN 954-GN 235-BK-18 TRAVEL ALARM 1 321-BR-18
(19) ATCH SIGNAL BR-18 C K904-GN-18 +B YL-18 A 147-PU 147-PU 147-PU (A) HYD OIL
3E-7738
VALVE CONTROL CIRCUIT. NOTE B: NOT USE ON THIS VEHICLE.
FLOW LIMIT +B YL-18 A 147-PU SIGNAL BR-18 C T967-YL-18 T967-YL-18 (10) ATCH HAMMER 491-PK-18 TEMP SENDER NOTE C: USE WITH 12V 10A X 2 CONVERT ER.
SOL A SOL (19) ATCH HAMMER C C 4I-5394 HEATER AND AIR CONDITIONER CIRCUIT. NOTE D: USE WITH CONFIGURE 3.
M738-OR-18 GROUND BK-18 B 235-BK-18 GROUND BK-18 B 235-BK-18 235-BK-18 235-BK-18
171-0188 121-6303 PRESS. SW T°
(19) ATCH M738-OR-18
L75
C C TURN SIGNAL/WIPER/WASHER CIRCUIT.
1 M738-OR-18 1 M737-WH-18 M737-WH-18 (E) PUMP DISCHARGE 235-BK-18 167-3466 235-BK-18
L75

PRIMARY PRESS SENSOR1 (E) PUMP DISCHARGE

NFC SOL 2 M739-YL-18 2 M739-YL-18 M739-YL-18 C
U U 157-3182 PRESS SENSOR2 L20 235-BK-18 2 GROUND (E) HYD OIL
171-0114 157-3182 L20 L20 FILTER SW
M739-YL-18 487-OR-18 1 SIGNAL
L75 L75 L75 L75 173-3518

12 11 10 9 8 7 6 5 4 3 2 1
MACHINE HARNESS CONNECTOR AND
COMPONENT LOCATIONS
VIEW ALL CALLOUTS

J 23 15 16 5 14 1 13 G A C H B 11

21

24

E 19 12 6 10 25 3 D 18 20 22

23 F 16 14 1 13 G A C B 11 22

24

19

15

E 21 2 12 6 10 5 25 D 3 20 18 H