This document provides symbols, definitions and location information for electrical schematic components and harness connectors for an excavator. It includes a list of common electrical components with their symbols and brief descriptions as well as charts that show the schematic and physical locations of connectors and individual machine components on the excavator. The purpose is to provide information to aid in understanding electrical system diagrams and locating components in the field.

1. SENR8974-01
16Page,(Dimensions:34inchesx24inches)
Pressure
Symbol
T
Temperature
Symbol
Level
Symbol
Flow
Symbol
Circuit Breaker
Symbol
Harness and Wire Symbols
Symbols
Symbols and Definitions
Harness And Wire Electrical Schematic Symbols
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 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.
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.
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.
1
2
AG-C4
111-7898
L-C12
3E-5179
9X-1123
Component
Part Number
Pin or Socket Number
Part Number: for Connector Receptacle
Part Number: for Connector Plug
Harness Identification Letter(s):
(A, B, C, ..., AA, AB, AC, ...)
Plug
325-AG135 PK-14
Wire Color
Wire Gauge
Receptacle
1
1
2
2
Sure-Seal connector: Typical representation
of a Sure-Seal connector. The plug and receptacle
contain both pins and sockets.
Deutsch connector: Typical representation
of a Deutsch connector. The plug contains all
sockets and the receptacle contains all pins.
Fuse (5 Amps)
5A
Harness identification code:
This example indicates wire group 325,
wire 135 in harness "AG".
L-C12
3E-5179
Wire, Cable, or Harness
Assembly Identification: 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, ...).
SENR8974-01
February 2001
330B L Excavator
Electrical System
6DR1-UP
©2001 Caterpillar
All Rights Reserved
Printed in U.S.A.
Machine Harness Connector and Component Locations
A
3
4
6 9
10
11
1415
13
16
B
C
D
E
1
2
17
18
19
20
21
7
B
C
D
E
A
3
4
5
8
12
7
10
11
14
15
13
16
8
9
12
17
18
19
20
21
5
12
26
25
23
22
25
23
24
26
22
24
6
F
F
Connector Location
Connector Number
Schematic
Location
Machine
Location
CONN 1 A-9 26
CONN 2 F-9 D
CONN 3 F-9 D
CONN 4 G-9 D
CONN 5 G-9 D
CONN 6 G-8 D
CONN 7 G-8 D
CONN 8 G-8 D
CONN 9 F-8 D
CONN 10 C-6 22
CONN 11 C-5 22
CONN 12 C-5 F
CONN 13 C-4 F
CONN 14 F-5 C
CONN 15 F-5 C
CONN 16 F-5 C
CONN 17 F-5 C
CONN 18 F-4 C
CONN 19 F-4 C
CONN 20 F-4 C
CONN 21 F-4 C
CONN 22 H-5 B
CONN 23 H-5 B
CONN 24 H-4 B
CONN 25 H-4 B
CONN 26 H-4 B
CONN 27 H-4 B
CONN 28 H-3 B
CONN 29 H-3 B
CONN 30 C-3 F
CONN 31 B-3 6
CONN 32 A-3 6
CONN 33 B-2 25
CONN 34 D-2 F
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.
Related Electrical Service Manuals
Form Number
Alternator: (100-5047) SENR2082
Electric Starting Motor:
(6V-5227)
Consist: 6V-5538 SENR4975
Engine/Pump Control: RENR1998
Starting and Charging: SENR9292
Title
Wire Description
Wire
Number
Wire
Color Description Wire
Number
Wire
Color Description
Power Circuits Accessory Circuits (Continued)
101 RD Batttery (+) 512 GN Radio Speaker - Right (Common)
103 RD Aux. Ckt. 513 OR A/C Compressor/Refrigerant Pressure Sw.
105 RD Key Sw. 519 PK Thermostat to Refrigerant Pressure Sw.
107 RD Engine Shutdown 546 BU Aux. Hydraulic - Rotate CW
108 BU Aux. Ckt. 547 OR Aux. Hydraulic - Rotate CCW
109 RD Alt. Output (+) Term. 548 GY Aux. Hydraulic - Open
111 RD Aux. Ckt. 549 PK Aux. Hydraulic - Close
112 PU Main Power Relay Output 576 PK Wiper - Aux. (Low)
113 OR Opr. Mon. Panel B (+) Switched 578 BU Washer - Aux.
114 RD Warning Horn (Forward) 590 GY Wiper Sw. to Intermittent Module
115 PK Aux. Ckt. 592 BU DC/DC Converter Power Output
118 GY Aux Ckt A513 RD DC/DC Converter Memory Output
120 YL Aux. Ckt. A571 PU Aux. Ckt. #1
123 WH Aux. Ckt. A572 PK Aux. Ckt. #2
124 GN A/C A579 OR Wiper Motor (+)
129 BU Aux. Ckt. A586 OR Wiper Sw. to Wiper Control
140 BU Aux. Ckt. A588 GN Safety Solenoid Relay to Solenoid
147 PU Aux. Ckt. C537 GN A/C Photo Sensor (+) Signal
149 PU Aux. Ckt. C538 OR A/C Photo Sensor (-) Signal
150 RD Battery (+) Lighting Circuits
151 GN Aux. Ckt. 607 PK Flood Lamp - Front
152 BU Aux. Ckt. 615 YL Cab Flood Lamp
154 RD Aux. Ckt. 616 BU Boom Flood Lamp
168 RD Aux. Ckt. Control Circuits
172 RD Aux. Ckt. 763 BU Torque Converter Sw.
177 RD Main Breaker 786 GN Engine Speed Control - Hi Pressure Sw.
180 GN Aux. Ckt. 788 YL Engine Speed (+)
185 YL Aux. Ckt. 791 PK Engine Speed Control - Lo Solenoid
189 RD Aux. Ckt. A755 PK Throttle Sw. #1
191 WH Aux. Ckt. A756 BU Throttle Sw. #2
Ground Circuits A757 GY Throttle Sw. #3
200 BK Main Chassis A758 BR Throttle Sw. #4
201 BK Operator Monitor Return A761 PU Electronic Pump Control Ground
235 BK Electronic Pump Control Ground A762 PU Electronic Pump Control Engine Speed Ground
Basic Machine Circuits A768 BU Pump Control Valve #1 (+)
301 BU Starter No. 1 Sol A769 GY Pump Control Valve #2 (-)
304 WH Starter Relay No. 1 Output A770 PK Electronic Pump Control Bypass Sw.
306 GN Starter Relay Coil A771 PU Float Sw.
307 OR Key Sw. to Neutral Start Sw. F771 OR Backup Sw.
308 YL Main Power Relay Coil F772 WH Backup Sw.
310 PU Start Aid Sw. to Start Aid Sol F773 OR Governor Accel.
311 WH Start Aid Sol to Sw. F774 WH Governor Decel.
320 OR Horn Relay Coil to Sw. 961 BR Selector Sw.
321 BR Travel Alarm K904 GN Pump Discharge - Signal
322 GY Warning Horn (Forward) K905 RD Pump Discharge - +B
326 RD Key Sw. "C" Term. K906 GN Swing Brake Solenoid - Signal
386 PK Air Shutoff Solenoid Enable K907 BU Swing Brake Solenoid - +B
Monitoring Circuits K909 BU Backup Sw. - +B
403 GN Alternator (R) Term. K911 PK E/P Controller - RS485 (+)
405 GY Opr. Mon. Oil Press. (Low Setting) K912 GN E/P Controller - RS485 (-)
412 BU Opr. Mon. Cool Flow K915 GN Fine Swing Sw. - E/P Controller
430 BU Opr. Mon. Air Filter K997 BU + V Sensor
487 OR Hydraulic Oil Flow Switch L908 OR Controller RS-232C TX
491 PK Hydraulic Oil Temperature Sensor L909 BU Controller RS-232C RX
492 GY Coolant Temperature Sensor Signal L968 OR Electronic Pump Control PS Valve (-)
495 GN Fuel Level Sensor L969 OR Electronic Pump Control PS Valve (+)
496 WH Opr. Mon. Panel Hydraulic Oil Level L970 GY Electronic Pump Control to Sw. Common
C468 BU Engine Oil Level L971 GN Electronic Pump Control to Travel Pressure Sw.
Accessory Circuits L972 BU Low Idle Sw.
501 GN Wiper - Front (Low) L973 GN Fine Swing Control Relay to Solenoid Valve
506 PU Washer - Front L974 GN Electronic Pump Control Boom Raise Pressure Sw.
508 PU Radio Speaker - Left L975 PK Start Aid Control Lamp 1 Output
509 WH Radio Speaker - Left (Common) L977 YL Trenching Solenoid
511 BR Radio Speaker - Right L978 GY Level Finish Solenoid
Component Location
Component Schematic
Location
Machine
Location Component Schematic
Location
Machine
Location
Actuator - Engine Governor A-9 1 Sender - Hydraulic Oil Temperature A-5 12
Alarm - Travel G-9 3 Sensor - Engine Speed B-8 8
Alternator C-8 4 Sensor - Fuel Level A-5 13
Assembly - Terminal Block F-8 D Sensor - Pump Discharge Pressure B-8 14
Batteries - 12VDC H-8,I-8 5 Sensor - Sun Load F-1 E
Breaker - Alternator I-8 D Solenoid - A/C Clutch C-9 15
Breaker - Main I-8 D Solenoid - Engine/Pump Control A-7 16
Control - Engine/Pump F-2 C Solenoid - Engine Shutdown B-8 8
Controller - Wiper/Washer E-1 E Solenoid - Fine Swing E-7 18
Converter - Voltage C-5 A Solenoid - Hydraulic Lock I-1 F
Diode - Main Relay H-7 D Solenoid - Level Finish A-7 16
Fuses I-4,5,6 B Solenoid - Start Aid H-9 19
Ground - Cab B-5 22 Solenoid - Swing Brake E-7 18
Ground - Cab E-1 E Solenoid - Travel Speed A-7 16
Ground - Chassis A-3 8 Solenoid - Trenching A-7 16
Ground - Chassis A-8 7 Switch - Air Cleaner Flow H-9 20
Ground - Chassis I-8 D Switch - Aux Hydraulic Pressure H-3 B
Ground - Platform G-2 F Switch - Backup EPR Valve E-5 C
Ground - Platform H-1 F Switch - Backup Governor D-5 C
Ground - Relay Panel H-7 D Switch - Boom Raise Pressure D-8 C
Ground Strap - Chassis to Disconnect Sw. I-8 D Switch - Coolant Level H-9 19
Ground Strap - Chassis to Platform I-6 10 Switch - Disconnect I-8 D
Horn A-2 7 Switch - Engine Oil Pressure B-9 11
Lighter E-1 E Switch - Fine Swing Control D-4 C
Meter - Service F-1 E Switch - Horn I-1 B
Monitor F-1 E Switch - Hydraulic Oil Filter A-5 12
Motor - Lower Washer I-9 D Switch - Hydraulic Oil Level A-5 12
Motor - Lower Wiper H-1 9 Switch - Implement Pressure D-8 18
Motor - Starter B-8 8 Switch - Key F-3 C
Motor - Upper Washer I-9 D Switch - Lower Washer D-4 C
Motor - Upper Wiper C-5 23 Switch - Lower Wiper D-3 C
Radio - 12VDC C-6,I-3 A Switch - Neutral Start Limit I-1 B
Relay - Boom Lamp I-7 D Switch - One Touch Low Idle F-2 C
Relay - Cab/Chassis Lamp I-7 D Switch - Refrigerant Low Pressure C-9 19
Relay - Horn I-7 D Switch - Start Aid D-5 C
Relay -Hydraulic Lock Solenoid I-7 D Switch - Start Aid Coolant Temperature B-9 2
Relay - Main G-7 D Switch - Suction Line Shutoff Limit A-6 12
Relay - Neutral Start F-7 D Switch - Throttle Position E-3 C
Relay - Start F-8 D Switch - Travel Pressure D-8 18
Relay - Timer E-7 D Switch Panel F-2 C
Resistor - Backup I-8 D Unit - A/C, Heater G-5 21
Sender - Coolant Temperature B-9 2
Machine locations are repeated for components located close together.
A = Located in operators compartment.
B = Located in operators left console area.
C = Located in operators right console area.
D = Located in relay panel area.
E = Located in dash area.
F = Located under cab floor plate.
Resistor, Sender and Solenoid Specifications
Part No. Com ponent Description Resistance (Ohms)¹
3E-6332 Solenoid: Start Aid 6.0
3E-7985 Solenoid: Engine Shutdown
Start (Latch) Coil - 1.55 ± 0.15
Stop (Unlatch) Coil - 10.3 ± 1.03
20824-25451 @ 0 °C (32 °F)
6134-7496 @ 25 °C (77 °F)
3989-4875 @ 35 °C (95 °F)
4I-5394 Sender: Hydraulic Oil Temperature 2224-2718 @ 50 °C (122 °F)
973-1189 @ 75 °C (167 °F)
475-522 @ 100 °C (212 °F)
221-269 @ 125 °C (257 °F)
102-8017 Resistor: Backup 52.0 ± 2.6
111-9916 Solenoid: Engine/Pump Control 11.7 ± 1.2
121-1490 Solenoid:
Level Finish
Trenching
32.0 ± 3.2
121-1491 Solenoid:
Hydraulic Lock
Swing Brake
Travel Speed
32.0 ± 3.2
134-3998 Solenoid: A/C Clutch 17.6 ± 0.6
¹ At room temperature unless otherwise noted.
Off Machine Switch Specification
Part No. Function Actuate Deactuate Contact Position
27 °C
(80.6 °C)
70 ± 21 kPa A-B, Normally Open
(10 ± 3.0psi) A-C, Normally Closed
Implement Pressure 1225.0 ± 98.0 kPa 882.0 kPa MIN
Travel Pressure (177.67 ± 14.21 psi) (127.92 psi MIN)
2646 ± 196 kPa 2156 ± 196 kPa 1-2 Normally Open
(384 ± 28 psi) (313.00 ± 28.00 psi) 1-3 Normally Closed
490.00 ± 49.00 kPa 290.00 kPa MIN
(71.07 ± 7.11 psi) (42.06 psi MIN)
109-9330 Air Cleaner 635±58 mm H2O - Normally Open
114-5333 Refrigerant Low Pressure
275 to 1750 kPa¹
(39.9 to 253.8 psi)
-
-
Normally Open²
Normally Open
106-0179
106-0180 Boom Raise Pressure
106-0181 Hydraulic Pressure
¹ With increasing pressure the closed condition can be maintained up to 2800 kpa (405 psi), with decreasing pressure the closed
condition can be maintained down to 170 kpa (25psi).
² Contact position at the contacts of the harness connector.
3E-6449 Start Aid Coolant Temperature
38 ±3°C
(100.4 ± 37.4°F)
Normally Closed
3E-6455 Engine Oil Pressure
90 ± 21 kPa
(13 ± 3.0 psi)
Normally Open
Code Description of Problems
1301 Engine oil pressure is too low.
1302 Engine coolant temperature is too high.
1303 Hydraulic oil temperature is too high.
1304 Air filter is clogged.
1305 Battery voltage is not normal.
2201 Governor actuator feedback sensor circuit is open or shorted to battery voltage.
2202 Governor actuator feedback sensor circuit is shorted to body ground.
2301 Governor actuator feedback signal is not stable.
2302 Governor actuator feedback signal deviates.
2303 Governor actuator does not move.
2304 Calibration data error.
3201 Monitor RAM is not normal.
4101 Electric power supply to the controller is too much (43 volts).
4102 Over-current in proportional reducing valve.
4103 Proportional reducing valve circuit is open.
4105 Over-current in digital output (trenching solenoid).
4106 Over-current in digital output (fine control solenoid).
4107 Over-current in digital output (travel speed change solenoid).
4108 Over-current in digital output (travel alarm).
410A Over-current in digital output (swing brake solenoid).
4201 Engine speed is not normal.
4202 Engine coolant temperature sensor is shorted to body ground.
4203 Hydraulic oil temperature sensor is shorted to body ground.
4204 PWM sensor of pump delivery pressure is shorted to body ground.
4207 PWM sensor of pump delivery pressure is open in circuit.
420A Fuel sensor is shorted to body ground.
420B Fuel sensor is open or shorted to battery voltage.
420C Electric power supply is too low (below 23 volts).
420D Electric power supply is too high (above 32 volts).
420E Engine speed dial is not in one of the 10 specified positions.
4301 Data mismatch 1 between alternator and speed sensor (alternator is abnormal).
4302 Data mismatch 2 between alternator and speed sensor (speed sensor is abnormal).
4303 Engine stalls.
A201 Monitor communication is not normal.
A202 Monitor takes too much time to respond to controller's signal.
A203 Communication is abnormal in controller.
Real Time Error Codes
(6V-0512) SENR3860

2. SENR8974-01
16Page,(Dimensions:34inchesx24inches)
THIS SCHEMATIC IS FOR THE 330B L HYDRAULIC EXCAVATOR
PART NUMBER: 116-0145, CHANGE: 04, VERSION: (-)
Components are shown installed on a fully operable machine with the key and engine off, transmission shifter
in neutral and with parking brake set.
Refer to the appropriate Service Manual for Troubleshooting, Specifications and Systems Operations.
ABBREV
RD
WH
OR
YL
PK
BK
GY
PU
BR
GN
BU
COLOR
RED
WHITE
ORANGE
YELLOW
PINK
BLACK
GRAY
PURPLE
BROWN
GREEN
BLUE
COLOR ABBREVIATIONS
SYMBOL DESCRIPTION
BLADE, SPADE, RING OR SCREW
TERMINAL
CIRCUIT CONNECTED
CIRCUIT NOT CONNECTED
ELECTRICAL CONNECTION TO
MACHINE STRUCTURE
INTERNAL ELECTRICAL CONNECTION
TO SURFACE OF COMPONENT
CONNECTOR
ATCH WIRE, CABLE, COMPONENT
SPLICE
CIRCUIT GROUPING DESIGNATIONH#
WIRE GROUP COLOR DESCRIPTIONS
GROUND CIRCUIT
WIRES THAT HAVE SYSTEM VOLTAGE WHEN THE KEY SWITCH IS OFF
WIRES THAT HAVE SYSTEM VOLTAGE WHEN THE KEY SWITCH IS ON
STARTING CIRCUIT
START AID CIRCUIT
ENGINE PUMP CONTROL CIRCUIT
MONITOR CIRCUIT
GAGE CIRCUIT
HEATER AND AIR CONDITIONER CIRCUIT
WIPER WASHER CIRCUIT
L908-OR-18
L909-BU-18
235-BK-18
147-PU-18
F774-WH-18
F773-OR-18
A761-PU-18
K904-GN-18
430-BU-18
K906-GN-18
A771-PU-18
763-BU-18
200-BK
112-PU-6
K909-BU-18
151-GN-18
308-YL-18
307-OR-18
791-PK-18
615-YL
786-GN-18
149-PU
320-OR-18
A770-PK-18
200-BK
140-BU
149-PU
147-PU-18
105-RD
107-RD
103-RD-18
191-WH-14
115-PK-14
120-YL
118-GY
124-GN-14
200-BK-18
235-BK-14
200-BK-14
103-RD-18
506-PU-18
403-GN-18
A771-PU-18
788-YL-18
A762-PU-18
763-BU-18
412-BU-18
C468-BU-18
321-BR-18
405-GY-18
492-GY-18
491-PK-18
495-GN-18
430-BU-18
496-WH-18
K904-GN-18
A761-PU-18
487-OR-18
235-BK-14
200-BK-14
200-BK-18
786-GN-18
791-PK-18
308-YL-18
307-OR-18
578-BU-18
K906-GN-18
A768-BU-18
A769-GY-18
A770-PK-18
F774-WH-18
F773-OR-18
K909-BU-18
310-PU-18
A588-GN-18
A588-GN-18
107-RD
320-OR-18
151-GN-18
118-GY
512-GN-18
511-BR-18
509-WH-18
508-PU-18
103-RD-18
519-PK-18
113-OR-18
185-YL-18
105-RD
512-GN-18
511-BR-18
508-PU-18
509-WH-18
519-PK-18
124-GN-14
113-OR-18
185-YL-18
105-RD
118-GY
124-GN-14
200-BK-14
519-PK-18
103-RD-18
403-GN-18
403-GN-18
403-GN-18
403-GN-18
200-BK-18
200-BK-18
590-GY-18
501-GN-18
A586-OR-18
786-GN-18
791-PK-18
113-OR-18
308-YL-18
307-OR-18
105-RD
A758-BR-18
A757-GY-18
A756-BU-18
A755-PK-18
578-BU-18
K915-GN-18
310-PU-18
A769-GY-18
A768-BU-18
K906-GN-18
185-YL-18
K909-BU-18
K907-BU-18
A770-PK-18
F772-WH-18
F774-WH-18
F773-OR-18
F771-OR-18
200-BK-18
200-BK-18
615-YL-18
235-BK-14
615-YL
615-YL
235-BK-18
235-BK-18
308-YL-18
A758-BR-18
A757-GY-18
A756-BU-18
A755-PK-18
K912-GN-18
K911-PK-18
K915-GN-18
F771-OR-18
F772-WH-18
K907-BU-18
403-GN-18
487-OR-18
A761-PU-18
K904-GN-18
496-WH-18
430-BU-18
495-GN-18
491-PK-18
492-GY-18
405-GY-18
321-BR-18
C468-BU-18
412-BU-18
763-BU-18
A762-PU-18
788-YL-18
A771-PU-18
A586-OR-18
501-GN-18
590-GY-18
200-BK-18
200-BK-18
147-PU-18
140-BU
149-PU
151-GN-18
320-OR-18
107-RD
112-PU-6112-PU-14
112-PU-14
112-PU-14
124-GN-14
147-PU-18
200-BK-18
103-RD-18
140-BU
149-PU
151-GN-18
320-OR-18
107-RD
112-PU-14
112-PU-14
112-PU-14
112-PU-14
112-PU-14
112-PU-14
191-WH-14
185-YL18
200-BK-18
320-OR-18
151-GN-18
200-BK-18
320-OR-18
200-BK
K909-BU-18
A588-GN-18
151-GN-18
308-YL-18
307-OR-18
791-PK-18
615-YL
RELAY PANEL
786-GN-18
200-BK-18
200-BK-18
200-BK-18
200-BK-18
200-BK-18
308-YL-18
616-BU
149-PU
786-GN-18
320-OR-18
A588-GN-18
151-GN-18
200-BK-18
200-BK-18
615-YL
791-PK-18
A770-PK-18
149-PU
200-BK-18
K909-BU-18
307-OR-18
386-PK-18
200-BK-18
K909-BU-18
200-BK-18
200-BK-18
308-YL-18
K909-BU-18
A770-PK-18
791-PK-18
615-YL
200-BK-18
151-GN-18
A588-GN-18
320-OR-18
786-GN-18
149-PU
616-BU
308-YL-18
308-YL-18
A770-PK-18
K909-BU-18
615-YL
791-PK-18
115-PK-18
115-PK-18
151-GN-18
200-BK-18
A588-GN-18
616-BU
149-PU-18
149-PU-18
149-PU
320-OR-18
111-RD-14
189-RD-14
112-PU-14
112-PU-14
112-PU-14
149-PU
140-BU
200-BK-18
200-BK-18
200-BK-14
103-RD-18
147-PU-18
200-BK-18
200-BK-14
200-BK-14
403-GN-18
112-PU-14
185-YL-18
112-PU-14
112-PU-14
112-PU-14
311-WH-18
310-PU-18
107-RD
103-RD-18
105-RD
149-PU
191-WH-14
118-GY
124-GN-14
120-YL
11
12
1
2
3
4
5
6
7
8
9
10
1
2
321-BR-18
A
3
7
9
1
11
5
2
1
4
3
5
6
A
J
200-BK-18
12
K904-GN-18
11
10
200-BK-18
200-BK-18
ATCH START
AID SOL
3E-6332
200-BK-18
200-BK-18
200-BK-18
A769-GY-18
A768-BU-18
763-BU-18
200-BK-18
200-BK-18
200-BK-18
6
1
3
5
1
AIR CLEANER SW
109-9330
A768-BU-18
2
7
A769-GY-18
8
9
4
J
A
AA
TRAVEL ALARM
3E-7738
2
B
COOLANT
LEVEL SW
109-9436
1
2
MOTOR
UPPER WASHER
7T-8890
LOWER WASHER
7T-8890
BATTERY
3T-5760
NEGPOS NEGPOS
ATCH
BATTERY
3T-5760
(NOTE C)
320-OR-18
L977-YL-18
L978-GY-18
L978-GY-18
763-BU-18
L977-YL-18
200-BK-18
200-BK-18
200-BK-18
200-BK
A770-PK-18
200-BK-18
200-BK-18
K909-BU-18
308-YL-18
200-BK-18
200-BK-18
200-BK-18
A588-GN-18
151-GN-18
308-YL-18
307-OR-18
791-PK-18
615-YL
308-YL-18
786-GN-18
149-PU
320-OR-18
A770-PK-18
K909-BU-18
200-BK
POS NEG NEGPOS
K997-BU-18
PUMP DISCHARGE
PRESS SENSOR
106-0178
SIGNAL
GROUNDBK-18
BR-18
YL-18
B
C
B
A
M
M
N (NOTE D)
F
BBBB
2
12
1
ENG/PUMP CONT
SOL
111-9916
LEVEL FINISH
SOL
121-1490
TRENCHING SOL
121-1490
TRAVEL SPEED
SOL
121-1491
1
2
200-BK-14
2
9 8 7 6 5 4 3 2 1
9 8 7 6 5 4 3 2 1
H
G
I
F
E
D
C
B
A
H
G
I
F
E
D
C
B
A
1
386-PK-18
616-BU
DISCONNECT SW.
7N-0719
ALT BREAKER
9S-0174
YY
UU
VV
5
4
6
3
1
2
BACKUP
RESISTOR
102-8017
HYD LOCK SOL RELAY
111-4871
5
3
4
6
2
1
7
8
9
10
11
12
506-PU-18
CHASSIS
L42
L41
L29
L30
MAIN RELAY
3T-0376
CAB/CHASSIS LAMP RELAY
111-4871578-BU-18
4
5
60A
200-BK-18
200-BK-18 MOTOR
A
6
3
12
2
1
7
11
8
9
HORN RELAY
111-4871
BOOM LAMP RELAY
111-4871
10
A
B
CHASSIS
L30
L28
DIODE
121-1022
L28
L29
L30
L29
L41
L42
L42
L41
ZZ
200-BK-18
306-GN-18
177-RD-8
200-BK-18
386-PK-18
616-BU
306-GN-18
304-WH-8
L975-PK-18
L975-PK-18
L973-GN-18
L977-YL-18
L978-GY-18
L974-GN-18
L969-WH-18
L968-OR-18
L973-GN-18
L972-BU-18
L973-GN-18
487-OR-18
200-BK-18
L971-GN-18
L977-YL-18
L974-GN-18
L978-GY-18
ENG/PUMP CONT
151-9377
L971-GN-18
L970-GY-18
L977-YL-18
L974-GN-18
L969-WH-18
A769-GY-18
491-PK-18
496-WH-18
495-GN-18
403-GN-18
788-YL-18
A762-PU-18
C468-BU-18
405-GY-18
492-GY-18
L972-BU-18
L971-GN-18
L975-PK-18
L977-YL-18
L974-GN-18
L978-GY-18
L969-WH-18
L968-OR-18
L972-BU-18
519-PK-18
495-GN-18
321-BR-18
412-BU-18
306-GN-18
2
306-GN-18
306-GN-18
615-YL-18
3
AD 128-8936 I-8
4
1
NOTE E : REM'D WITH ATCH HEATER OPTION.
487-OR-18
310-PU-18
107-RD
103-RD-18
2
177-RD-14
177-RD-14
1
4
200-BK-18
177-RD-14
1
4
3
2
177-RD-14
177-RD-14
177-RD-14
5
177-RD-14
306-GN-18
177-RD-14
200-BK-18
308-YL-18
177-RD-6
K909-BU-18
307-OR-18
200-BK-18
177-RD-14
3
496-WH-18
200-BK-18
BK
YL
115-PK-14
RD-00
RD-00
5
177-RD-14
ATCH
SUCTION LINE
SHUTOFF LIMIT SW
3E-5181
B
HYD OIL
FILTER SW
143-7966GROUND
SIGNAL
+B
C
B
A
177-RD-14
BB
B
177-RD-14
177-RD-14
177-RD-14
177-RD-14
177-RD-14
177-RD-14
506-PU-18
578-BU-18
177-RD-14
177-RD-14
177-RD-14
177-RD-14
112-PU-6
HYD OIL
TEMP SENDER
4I-5394
FUEL LEVEL
SENSOR
105-9911
4
1 2
3
3
2
1
HYD OIL
LEVEL SW
111-4760
2
T~
1
B
200-BK-18
386-PK-18
386-PK-18
8
9
6
5
12
11
4
10
10
9
8
12
7
6
11
5
2
1
4
3
2
1
3
7
4
307-OR-18
VVAD
AD
177-RD-6
109-RD-6
101-RD-6
172-RD-18
111-RD-14
101-RD-6
147-PU-18
101-RD-6
MAIN BREAKER
9S-0174
118-GY
124-GN-14
12
4
10
2
6
112-PU-14
200-BK-14
200-BK-14
K912-GN-18
K911-PK-18
403-GN-18
185-YL-18
615-YL-18
K911-PK-18
K912-GN-18
149-PU
A586-OR-18
590-GY-18
501-GN-18
A755-PK-18
A756-BU-18
A757-GY-18
A758-BR-18
L972-BU-18
200-BK-14
103-RD-18
118-GY
615-YL-18
506-PU-18
403-GN-18
200-BK-14
103-RD-18
512-GN-18
511-BR-18
509-WH-18
508-PU-18
615-YL
615-YL
506-PU-18
112-PU-14
112-PU-14
180-GN
189-RD-14
590-GY-18
501-GN-18
A586-OR-18
103-RD-18
8
103-RD-18
508-PU-18
509-WH-18
511-BR-18
512-GN-18
118-GY
103-RD-18
140-BU
105-RD
107-RD
103-RD-18
308-YL-18
F771-OR-18
F772-WH-18
L969-WH-18
L968-OR-18
K915-GN-18
K907-BU-18
200-BK-18
308-YL-18
147-PU-18
200-BK-18
115-PK-14
C468-BU-18
112-PU-6
120-YL
191-WH-14
6
10A
10A
15A
10A
10A
10A
A A
ENG GOV
15A
7
8
1
6
5
4
3
2
PLATFORMCHASSIS
GROUND STRAP
7G-1060
K909-BU-18
CAB/CHASSIS LAMP
RADIO
LOWER WASHER/WIPER
WASHER/WIPER
H H
CIGAR LIGHTER
A/C /HEATER
10A
HORN
FUSE
10A 9W-1442
15A 9W-1441
BACKUP
A
15A
DOME LAMP
KEY SW
BOOM LAMP
FINE SWING
10A
10A
10A
10A
10A
10A
10A10A
10A
10A
BK
10A
10A
15A
BK
E/P CONT
HYD LOCK SOL
10A
304-WH-8
SHUTDOWN
AUX CKT
ATCH LUBRICATOR
6
8
1
7
4
5
3
2
HYD LOCK SW
JJJJ
JJ
FUSE BASE
111-4812
506-PU-18
403-GN-18
152-BU
L52
118-GY
112-PU-6
152-BU
200-BK-18
200-BK-18200-BK-18
L52
200-BK-18
MONITOR +B OUT
L968-OR-18
A761-PU-18
L978-GY-18
A755-PK-18
763-BU-18
A756-BU-18
200-BK-18200-BK-18L52
A771-PU-18
A757-GY-18
177-RD-8
K997-BU-18
788-YL-18
A762-PU-18
412-BU-18
430-BU-18
321-BR-18
405-GY-18
492-GY-18
491-PK-18
495-GN-18
A758-BR-18
152-BU
496-WH-18
200-BK
WH-18
A762-PU-18
L53
308-YL-18
L975-PK-18
615-YL
200-BK-18
200-BK
200-BK-18
200-BK-18
200-BK-18
405-GY-18
492-GY-18
311-WH-18
519-PK-18
200-BK
200-BK
301-BU-10
301-BU-14
301-BU-10
200-BK-10
200-BK-18
NOTE C : USE WITH COLD WEATHER.
ZZ 111-4831 F-8
200-BK-18
172-RD-18
A761-PU-18
F773-OR-18
F774-WH-18
101-RD-6
513-OR-18
MOTOR
F774-WH-18
A/C CLUTCH
SOL
134-3998 (NOTE E)
ALT
R
B+
BU-18
A
B
C
304-WH-8
788-YL-18
519-PK-18
200-BK-18
F773-OR-18
311-WH-18
311-WH-18
A762-PU-18
200-BK-18
492-GY-18
492-GY-18
ENG SPEED
SENSOR
6V-2455
RD-18
BK-18
CHASSIS
ENG OIL
PRESS SW
3E-6455
1
2
A761-PU-18
200-BK-18
788-YL-18
200-BK-18
405-GY-18
172-RD-18
326-RD
C468-BU-18
403-GN-18
109-RD-6
200-BK-18
ATCH
START AID
COOLANT TEMP SW
3E-6449
B-
STARTER
MOTOR
6V-5227
6V-0512 (NOTE C)
304-WH-8
B
G S
MTR BAT
ENG
SHUTDOWN SOL
3E-7985
101-RD-6
RD-00
RD-00
C
200-BK-10
B
B
K997-BU-18
1
200-BK-6
2
2
1
BK-00
ENG OIL
LEVEL SW
111-4759
405-GY-18
ALTERNATOR
100-5047
200-BK-18
C
KEY
B
C
B
B
B
HH
ENG GOV
ACTUATOR
106-0126
C
6
DECEL
200-BK-18
L10
191-WH-14
191-WH-14
J704-WH-18
308-YL-18
113-OR-18
123-WH-14
123-WH-14
113-OR-18
308-YL-18
J704-WH-18
615-YL
308-YL-18
576-PK
200-BK-18
200-BK
200-BK-18
114-RD
114-RD
114-RD
235-BK-18
K997-BU-18
A
546-BU-18
1
8
6
10
12
7
9
11
2
J704-WH-18
547-OR-18
191-WH-14
5
K997-BU-18
4
200-BK-14
L970-GY-18
152-BU
235-BK-18
J704-WH-18
961-GN-18
C468-BU-18
K907-BU-18
F772-WH-18
F771-OR-18
K915-GN-18
K911-PK-18
K912-GN-18
152-BU
60A
3
549-PK-18
548-GY-18
487-OR-18
K904-GN-18
K905-RD-18
152-BU
200-BK-18
J704-WH-18
546-BU-18
547-OR-18
A
512-GN-18
511-BR-18
509-WH-18
508-PU-18
THROTTLE DIAL S1
THROTTLE DIAL S2
THROTTLE DIAL S3
THROTTLE DIAL S4
GOV ACTR (A)
EPR VALVE (+)
GOV ACTR (B)
GOV ACTR FDBK
COOLANT LEVEL SW
TRAVEL SPEED SOL
ENG SPEED SENSOR (-)
ENG SPEED SENSOR (+)
TRENCHING SOL
IMPLEMENT PRESS SW
ENG OIL LEVEL SW
FUEL LEVEL SENSOR
FRONT PUMP PRESS SENSOR
HYD OIL LEVEL SW
AIR CLEANER SENSOR
HYD OIL TEMP SENSOR
RS485 - (VALVE CONT)
RS485 + (VALVE CONT)
RS232C (GND)
RS232C (RX)
COOLANT SENSOR
9
20
10
28
31
26
13
30
29
35
40
2
6
39
6
24
25
22
15
ALTERNATOR (R TERM)
RS485 - (RH JOYSTICK)
7
38
12
TRAVEL ALARM
ENG OIL PRESS SW
36
SWING BRAKE SOL
23
EPR VALVE (-)
17
21
8
RS485 + (LH JOYSTICK)7
CAB
8 RS485 - (LH JOYSTICK)
RS485 + (PEDAL)9
10
RS485 + (SEMI AUTO)
RS485 - (PEDAL)
RS485 + (RADIO CONT)17
HYD TANK PRESS. SW
RS485 + (MONITOR)
RS485 - (SEMI AUTO)
HYD TANK INDICATOR
RS485 + (RH JOYSTICK)
RS485 - (MONITOR)
27
18 TRAVEL PRESS SW
HYD OIL FILTER INDICATOR
18 RS485 - (RADIO CONT)
RS485 + (ELEC GOV)19
+B
+B
AIH INDICATOR
FINE SWING SW
BOOM RAISE PRESS SW
LEVEL FINISH SOL
DUAL PWR SOL
AUX HYD PRESS SW
32
33
25
KEY SW ON
RS485 - (ELEC GOV)
26
12
40
2
4
28
27
LOW IDLE SW
21
20
1
11
22
34
3
24
23
14
13
16
15
5
36
35
29
31
30
39
38
37
GND
GND
HAMMER PRESS. SW
RS232C (TX)
KEY SW START
A
DOME LAMP
162-7755
2
3
4
5
6
1
8
7
37
4
3
OPTION SENSOR (PWM)
1
16
19
5
OPTION SENSOR (PWM)
J704-WH-18
32
33
DEGITAL OUT (-)
DEGITAL OUT (-)
14
11
34
SPEAKER (L)
6T-7695
SPEAKER (R)
6T-7695
2
1
8
3
5
4
7
6
129-BU
120-YL
A
1
113-OR-18
6
4
3
2
4
3
1
2
123-WH-14
F
F
F
F
E E
A
A A
A/C
UNIT
152-5085
177-RD-8
L7
PLATFORM
A
JOY STICK +B OUT
BK-00
RD-00
RD-00
A
CHASSIS
DD
DD
GG
(NOTE C)
CC
BK-00
FF (NOTE C)
BB
EE (NOTE C)
AA
L15
L971-GN-18
L15
BB
115-PK-14
189-RD
154-RD-18
111-RD-14
150-RD-18
K997-BU-18
189-RD
154-RD-18
111-RD-14
150-RD-18
BB
C538-OR-18
B
C537-GN-18
A
A
L45
L15
L50
L45
RELAY PANEL
115-PK-14
114-RD-18
114-RD-18
L15
D
D
DA
A
A
L48
L47
200-BK-18
150-RD-18
189-RD
154-RD-18
111-RD-14
150-RD-18
115-PK-14
115-PK-14
1
2
BK-18
150-RD-18
114-RD
154-RD-18
189-RD
111-RD-14
B
K909-BU-18
ACCEL
+B
F/B
GND
AA
EE(NOTE C)
150-RD-18
K909-BU-18
786-GN-18
177-RD-14
L10
320-OR-18
A513-RD-18
592-BU-18
L10
C538-OR-18
C537-GN-18
549-PK-18
548-GY-18
308-YL-18
576-PK
200-BK
5
A
A
3
1
4
2
576-PK
K906-GN-18
200-BK-6
B
T~
386-PK-18
200-BK-18
326-RD
129-BU
403-GN-18
615-YL-18
103-RD-18
C538-OR-18
K997-BU-18
A768-BU-18
172-RD-18
12
WW
306-GN-18
200-BK-18
200-BK-18
177-RD-14
200-BK-18
321-BR-18
200-BK-18
ENG COOLANT
TEMP SENDER
128-8945
430-BU-18
412-BU-18
C
2
310-PU-18
311-WH-18
1
T~
109-RD-6
403-GN-18
430-BU-18
200-BK-18
200-BK-18
412-BU-18
B
111-RD-14
189-RD
154-RD-18
154-RD-18
189-RD
177-RD-14
111-RD-14
B
B
RELAY PANEL
200-BK-18
11
10
9
K912-GN-18
K911-PK-18
501-GN-18
L974-GN-18
C537-GN-18
K906-GN-18
506-PU-18
590-GY-18
L54
200-BK-18
200-BK-18
200-BK-18
200-BK-18
UNLESS OTHERWISE SPECIFIED ALL WIRE IS 16 GAGE.
200-BK-18
HH 7Y-8132 A-8
GG 116-0242 H-8
FF 116-0080 H-8
EE 116-0162 A-8
CC 125-4727 I-8
BB 116-0080 I-8
AA 116-0161 A-8
CABLE AS.
VV 128-8937 F-8
WIRE AS.
L974-GN-18
200-BK-18
200-BK-18
200-BK-18
200-BK-14
A586-OR-18
A579-OR
1
3
200-BK-14
K 116-0146 B-2
J 132-1979 H-3
H 141-6437 D-3
F 128-7337 G-1
E 128-7336 E-1
D 135-6090 F-8
C 135-6088 A-9
B 135-6087 A-3
IDENT PART NO. LOC
200-BK-18
HARNESS AS.
592-BU-18
310-PU-18
509-WH-18
508-PU-18
512-GN-18
511-BR-18
A513-RD-18
592-BU-18
200-BK-18
A513-RD-18
615-YL
CONVERTER
112-3543 (2.5A)
615-YL
L971-GN-18
A771-PU-18
L974-GN-18
K906-GN-18
495-GN-18
6
1
2
3
4
5
616-BU
496-WH-18
487-OR-18
491-PK-18
GND
306-GN-18
386-PK-18
L977-YL-18
763-BU-18
OUT
L978-GY-18
INMEM
A768-BU-18
A769-GY-18
K904-GN-18
K997-BU-18
IGN MOTOR
F
UPPER WIPER
MOTOR
147-7982
105-RD
4
F773-OR-18
F774-WH-18
A770-PK-18
A769-GY-18
A768-BU-18
K906-GN-18
615-YL-18
L973-GN-18
578-BU-18
307-OR-18
308-YL-18
791-PK-18
786-GN-18
185-YL-18
2
6
A761-PU-18
F773-OR-18
113-OR-18
A586-OR-18
501-GN-18
590-GY-18
F774-WH-18
L52
326-RD
REFRIGERANT
LOW PRESS SW
114-5333 (NOTE A)
(NOTE E)
513-OR-18
519-PK-18
405-GY-18
PK
788-YL-18
1
2
C
200-BK-18
A762-PU-18
C468-BU-18
200-BK-18
200-BK-18
304-WH-8
607-PK
200-BK-18
322-GY
K909-BU-18
L54
L54
492-GY-18
L54
K909-BU-18
607-PK
311-WH-18
B
ANTENNA
8E-1118
495-GN-18
616-BU
L18
495-GN-18
200-BK-18
616-BU
311-WH-18
A
J
321-BR-18
412-BU-18
430-BU-18
310-PU-18
8
7
5
4
3
2
12
1
10
8
11
12
9
10
11
4
3
2
1
9
8
2
7
6
5
4
3
2
1
4
5
6
1
7
3
3
HH
AA
H
2
A
H
4
A
200-BK-18
200-BK-18
L969-WH-18
200-BK-18
A770-PK-18
L968-OR-18
200-BK-18
L8
L52
L970-GY-18
12 VDC RADIO
3E-7140
(NOTE F)
NOTE F : HORIZONTAL MTG LOCATION FOR CASSETTE.
L8
L8L8
L20
306-GN-18
L20
200-BK-18
200-BK-18
L8
200-BK-18
L8
616-BU
547-OR-18
304-WH-8
L53
K905-RD-14
150-RD-18
150-RD-18
150-RD-18
150-RD-18
150-RD-18
154-RD-18
L40
L17
200-BK-18
200-BK-18
L17
L38
L37
L17
615-YL-18
615-YL-18
200-BK-18
L8
115-PK-14
K905-RD-14
150-RD-18
108-BU
154-RD-18
L970-GY-18
172-RD-18
L973-GN-18
ANTENNA
CABLE
8R-6111
L40
L39
L39
L8
L38
L37
YY 111-4830 F-8
147-PU-18
615-YL-18
615-YL-18
L37
L38
578-BU-18
177-RD-14
L973-GN-18
322-GY
L39
200-BK-18
115-PK-14
200-BK-18
172-RD-18
189-RD
154-RD-18
150-RD-18
607-PK
K907-BU-18
111-RD-14
K905-RD-14
L22
2
1
OUT 1
+B
IN 2
IN 1
L21
GND
OUT 2
L20
UU
L19
ZZ
YY
XXWW
12
1
8
2
K905-RD-14
10
11
3
4
180-GN
168-RD
J
1
2
9
TIMER RELAY
111-4870
7
6
XX
GND
180-GN
CONV(OUT)
K905-RD-14
5
615-YL-18
NEUTRAL
START RELAY
111-4871
START RELAY
125-1302
10A
200-BK-18
K909-BU-18
200-BK-18
200-BK-18
L21
XX 111-4829 F-8
L19
200-BK-18
200-BK-18
185-YL-18
K909-BU-18
L3
L18
L22
L21
L18
L34
L34
L8
L19
L3
L34
L4
L25
L19
L3
L25
L4
L33
L21
168-RD
L31
L9
114-RD
L12
L13
AUX CKT
L13
L12
L11
200-BK-18
L9
592-BU-18
L31
HH
L33
L33
L33
L33
K915-GN-18
326-RD
308-YL-18
L19
L3
L25
L4
L4
L25
L3
L19
L20
A513-RD-18
511-BR-18
L31
L4
L25
L3
L19
L20
512-GN-18
L20
L25
L3
L4
L4
L3
L19
L20
L25
508-PU-18
L2
K997-BU-18
K997-BU-18
J704-WH-18
615-YL-18
509-WH-18
WIRES K911-PK & K912-GN TO BE TWISTED AROUND
EACH OTHER AT LEAST 1 TURN PER 25 mm.
615-YL-18
L27
L26
113-OR-18
615-YL
L27
L26
F771-OR-18
F773-OR-18
F774-WH-18
F772-WH-18
615-YL-18
A769-GY-18
J704-WH-18
113-OR-18
152-BU-18
615-YL-18
A768-BU-18
592-BU-18
K906-GN-18
108-BU
615-YL-18
185-YL-18
L29
L28
129-BU
109-RD-6
129-BU
SWITCH PANEL
113-OR-18
AB
607-PK
WW 128-8938 F-8
310-PU-18
615-YL-18
615-YL-18
200-BK-18
308-YL-18
H
ATCH START
AID SW
111-4784
546-BU-18
114-RD
113-OR-18
101-RD-6
185-YL-18
112-PU-14
L5
151-GN-18
L20
L20
LOWER
WIPER SW
111-4785
LOWER
WASHER SW
111-4786
H
L11
FINE
SWING CONT SW
111-4788
115-PK-14
308-YL-18
HH
BACKUP
EPR VALVE SW
114-0421
H H
BACKUP
GOV SW
110-7884
H
200-BK-14
200-BK-18
200-BK-18
1
3
2
4
200-BK
615-YL
200-BK
200-BK
200-BK-14
200-BK
CC
308-YL-18
B
BA
A
2
1
B
403-GN-18
109-RD-6
519-PK-18
FINE SWING
SOL
116-3526
BOOM RAISE
PRESS SW
106-0180
1
2
B
2
1
109-RD-6
2
J704-WH-18
J704-WH-18
RHSPKR(-)
RHSPKR(+)
LHSPKR(-)
A 135-6086 C-2
LHSPKR(+)
6
5
3
4
2
1
8
547-OR-18
7
L8
152-BU
1
B
2
1
B
SWING
BRAKE SOL
121-1491
IMPLEMENT
PRESS SW
106-0179
TRAVEL
PRESS SW
106-0179
L48
L47
L47
L50
L48
A
B
B
B
DB
172-RD-18
322-GY
L51
607-PK
L49
L51
L49
L50
L51
113-OR-18
L45
L44
L42
L41
L29
L30
L44
L42
L41
L29
L30
L30
L29
L41
GG
L6
A588-GN-18
961-GN-18
F
108-BU
120-YL
-
+
-
+
512-GN-18
511-BR-18
509-WH-18
508-PU-18
OR
4
616-BU
200-BK
3
2
103-RD-18
118-GY
A579-OR
F
615-YL
615-YL
200-BK-14
L42
386-PK-18
306-GN-18
491-PK-18
1
487-OR-18
180-GN
496-WH-18
200-BK-18
386-PK-18
WH-18
WH-18
WH-18
WH-18
306-GN-18
B
491-PK-18
200-BK-18
200-BK-18
L44
A571-PU
3
616-BU
H
4
A572-PK
A572-PK
A571-PU
180-GN
615-YL
607-PK
322-GY
200-BK
200-BK
1
2
WIPER
W INT
W LOW
PUMP
+B
WASH
GND
GND
H
M 130-2211 G-1
A572-PK
A571-PU
H
326-RD
180-GN
961-GN-18
961-GN-18
549-PK-18
200-BK-14
AE
4
200-BK
H
H
J704-WH-18
548-GY-18
J704-WH-18
101-RD-6
326-RD
308-Yl-18
200-BK-18
200-BK-18
J
J
615-YL
101-RD-6
LAMP
126-7487
L970-GY-18
A579-OR
118-GY
1
3
2
A758-BR-18
118-GY
115-PK-14
111-RD-14
2
1
8
7
5
6
4
3
508-PU-18
322-GY
509-WH-18
511-BR-18
J
512-GN-18
F
307-OR-18
A757-GY-18
615-YL-18
A756-BU-18
+B
200-BK-18
J
576-PK
615-YL
120-YL
118-GY
A513-RD-18
A755-PK-18
L45
C538-OR-18
200-BK-18
129-BU
C537-GN-18
C538-OR-18
BLOCK
121-1023
607-PK
L971-GN-18
A771-PU-18
L971-GN-18
A771-PU-18
L45
152-BU
506-PU-18
L49
L44
ATCH HYD CTL
J
A
N 129-8144 G-1
200-BK
105-RD
A586-OR-18
549-PK-18
549-PK-18
C537-GN-18
HYD OIL FILTER SW
113-OR-18
5
L7
A513-RD-18
548-GY-18
ANTENNA CABLE
134-4430
501-GN-18
592-BU-18
200-BK-18
L24
12 VDC RADIO
103-8525
REMOVAL TOOL
7Y-5493
172-RD-18
322-GY
168-RD
150-RD-18
K912-GN-18
616-BU
A
C538-OR-18
201-BK-18
200-BK-18
C
B
A
103-RD-18
RH SPKR (-)
C537-GN-18
5
4
3
2
1
118-GY
108-BU
129-BU
A579-OR
A513-RD-18
615-YL
120-YL
592-BU-18
A579-OR
F
A
113-OR-18
140-BU
123-WH-14
J704-WH-18
615-YL
114-RD
123-WH-14
J704-WH-18
J704-WH-18
A513-RD-18
592-BU-18
177-RD-14
+B
COMP
GND
SUN+
SUN-
320-OR-18
154-RD-18
189-RD
172-RD-18
L22
RH SPKR (+)
LH SPKR (-)
L17
L15
K905-RD-14
LH SPKR (+)
L22
111-RD-14
150-RD-18
200-BK
616-BU
322-GY
151-GN-18
308-YL-18
ATCH
HEATER UNIT
152-5087
152-BU
519-PK-18
L24
615-YL
114-RD
200-BK-18
J704-WH-18
548-GY-18
200-BK-18
L970-GY-18
L970-GY-18
LAMP
126-7487
200-BK
615-YL
CONV(MEM)
308-YL-18
326-RD
200-BK-14
200-BK-18
200-BK
200-BK-18
129-BU
OPERATOR STATION
123-WH-14
108-BU1
114-RD
140-BU
322-GY
6
113-OR-18
113-OR-18
129-BU
607-PK
200-BK-18
103-RD-18
118-GY
A579-OR
A579-OR
108-BU
123-WH-14
200-BK
123-WH-14
607-PK
150-RD-18
607-PK
154-RD-18
200-BK
A588-GN-18
L7
A
A
152-BU C
ATCH FAN
AE
L8
B
200-BK-14
108-BU
K911-PK-18
590-GY-18
L6
308-YL-18
403-GN-18
A579-OR
C538-OR-18
C537-GN-18
200-BK-14
201-BK-18
200-BK-18
3
1
4
607-PK
322-GY
322-GY
2
B
200-BK-14
J704-WH-18
322-GY
615-YL
L972-BU-18
200-BK-18
308-YL-18
200-BK-18
113-OR-18
791-PK-18
786-GN-18
306-GN-18
A586-OR-18
501-GN-18
590-GY-18
L20
547-OR-18
J704-WH-18
546-BU-18
J
103-RD-18
120-YL
GND
114-RD
J704-WH-18
607-PK
615-YL
322-GY
607-PK
615-YL
115-PK-14
546-BU-18
6
A
154-RD-18
CONV (OUT)
200-BK
K
576-PK
CONV (MEM)
B
J704-WH-18
2
AC
4
1
114-RD
200-BK-18
592-BU-18
A513-RD-18
512-GN-18
511-BR-18
509-WH-18
2
1
J704-WH-18
200-BK-18
961-GN-18
615-YL
189-RD
172-RD-18
L21
3
508-PU-18
L20
L5
L11
L12
H
L6
E
CAB
J
PLATFORM120-YL
E
E
+
7
H
ONE TOUCH
LOW IDLE SW
128-2134
L19
114-RD
114-RD
607-PK
J
200-BK-18
HYD
LOCK SOL
121-1491
L15
L17
L15
8
L14
+B
L. CHASSIS
L. BOOM
ATCH LAMPS
306-GN-18
WASH
W. LOW
W. INT
GND
GND
LIGHT
RS485-
+B
MAIN
RS485+
N
N
200-BK
200-BK
200-BK-18
615-YL
1
2
6
5
4
NEUTRAL START
LIMIT SW
111-4799
HORN SW
128-2134
129-BU
L15
L975-PK-18
AC
K997-BU-18
326-RD
L21
L19
L3
200-BK
L21
L19
L3
L18
L3
L18
AC
200-BK
L13
L13
L12
L11
L13
L12
L11
L9
E
K997-BU-18
L7
K905-RD-18
K905-RD-18
L14
L1
A
E
L7
L6
L7
L1
AC 138-4282 A-2
AE 132-1973 A-3
NOTE D : USE WITH FALLING OBJECT GUARD.
B
L1
SW INPUT
K905-RD-18
F
AC
ATCH
BOOM LAMP
5I-8250
L20
322-GY
CHASSIS
OPERATOR STATION
S4
S3
S2
S1
COM
306-GN-18
AB 121-1044 A-6
108-BU
3
B
322-GY
607-PK
HORN
7T-0970
M
N (NOTE D)
M
200-BK
K
607-PK
K
200-BK
200-BK-18
616-BU-18
200-BK-18
616-BU-18
H
200-BK
MONITOR
151-9385
200-BK
SWITCH PANEL
111-4800
KEY SW
9G-7641
H
607-PK
113-OR-18
322-GY 607-PK
L2
SUN LOAD
SENSOR
128-2162
L3
2
1
LOWER
WIPER MOTOR
131-0398
+
-
L2
UU 111-4826 F-8
+1
-
MOTOR
SERVICE
METER
6T-7337
CHASSIS
LAMP
5I-8251
THROTTLE
POS SW
106-0107
ATCH
BOOM LAMP
5I-8250
322-GY
L6
EE
R
C
S
B
WIPER/WASHER
CONTROLLER
127-9838
615-YL
OFF
615-YL
ON
ST
NOTE A : NORMALLY OPEN BEFORE REFRIGERANT CHARGE.
L7
LIGHTER
9W-0335
607-PK
607-PK
2
1
AUX HYD
PRESS SW
106-0181
200-BK
L7
HORN
7T-0969
L6
K905-RD-14
CONN 1
CONN2CONN3
CONN 5
CONN4
CONN 6
CONN 7
CONN 8
CONN 9
CONN 10
CONN 11
CONN 12
CONN 13
CONN 32
CONN 31
CONN 33
CONN30
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 209
L909-BU-18
L908-OR-18
235-BK-18
CONN 34
L909-BU-18
L908-OR-18
235-BK-18
A
C
B
A
A
L909-BU-18
L908-OR-18
235-BK-18
L909-BU-18
L908-OR-18
235-BK-18
235-BK-18
L909-BU-18
L908-OR-18
GROUND
STRAP
132-1805
(NOTE C)
(NOTE C)
(NOTE C)
WIRES L908-OR & L909-BU TO BE TWISTED AROUND
EACH OTHER AT LEAST 1 TURN PER 25 mm.