330B & 330B L EXCAVATORS (8SR,8TR,1JS,1KS) HE VER. ELECTRICAL SCHEMATIC, USED IN SERVICE MANUAL SENR89659HN

©
1999 Caterpillar
All Rights Reserved
Printed in U.S.A.
Component Location
Component
Schematic
Location
Machine
Location
Component
Schematic
Location
Machine
Location
Actuator - Governor A-9 11 Sensor - Speed B-8 20
A/C Switch Panel H-5 C SIS Connector H-9 D
Alarm - Travel D-9 2 Solenoid - A/C Compressor Clutch C-9 27
Alternator C-8 5 Solenoid - Engine Shutdown B-8 11
Antenna B-6 14 Solenoid - Fine Swing D-7 28
Batteries E-9, F-9 13 Solenoid - Flow Control E-7 29
Block - Terminal G-7 D Solenoid - Hammer Control E-7 30
Breaker - Alternator G-9 D Solenoid - Hydraulic Lock E-3 G
Breaker - Main G-9 D Solenoid - Level Finish A-8 33
Controller J-1 2 Solenoid - Start Aid E-9 31
Converter J-1 15 Solenoid - Swing Brake D-7 32
Converter - 12V 5A H-5 15 Solenoid - Travel Speed A-7 33
Dial - Engine Speed D-3 B Solenoid - Trenching A-7 33
Fuse - Block J-4, 5, 6 C Switch - Air Cleaner D-9 35
Horn C-2 16 Switch - Aux Hydraulic Press F-2 F
Lamp - Boom C-2 17 Switch - Backup C-5 B
Lamp - Cab G-1 12 Switch - Boom Raise Pressure D-7 34
Lamp - Chassis C-2 19 Switch - Coolant Level D-9 36
Lamp - Dome A-5 A Switch - Disconnect G-9 D
Meter - Service E-1 A Switch - Engine Oil Level C-8 18
Monitor E-1 A Switch - Engine Oil Pressure B-9 38
Motor - Lower Washer F-9 D Switch - Fine Swing Control D-5 B
Motor - Lower Wiper E-2 F Switch - Flow Control Pressure F-2 F
Motor - Starter B-8 20 Switch - Hammer Control D-5 B
Motor - Washer F-9 D Switch - Hammer Pressure F-2 F
Motor - Wiper D-1 A Switch - Horn H-1 C
Power Window Control A-6 21 Switch - Hydraulic Oil Level A-3 E
Pump - Auto Lubrication E-9 22 Switch - Hydraulic Oil Filter A-3 E
Pump - Refueling C-2 7 Switch - Implement Swing Pressure D-7 39
Radio J-1 C Switch - Lower Washer D-4 B
Relay - Boom Lamp J-8 D Switch - Lower Wiper D-4 B
Relay - Chassis/Cab Lamp H-9 D Switch - Neutral Start H-1 C
Relay - Fan J-7 D Switch - One Touch Low Idle E-4 B
Relay - Flow Control J-8 D Switch - Panel E-3 B
Relay - Horn J-9 D Switch - Power Window D-4 B
Relay - Main H-8 D Switch - Power Window Limit A-6, F-1 A
Relay - Neutral Start J-7 D Switch - Refueling A-2 40
Relay - Refueling Power B-2 7 Switch - Refueling Start B-2 41
Relay - Starter H-7 D Switch - Refueling Stop A-2 41
Relay - Hydraulic Lock Solenoid H-8 D Switch - Seat Heater D-4 B
Relay - Refueling Start B-2 23 Switch - Speed Change C-5 B
Relay - Refueling Stop B-2 23 Switch - Start Aid D-5 B
Relay - Timer J-7 D Switch - Start Aid Coolant Temp C-9 24
Resistor - Backup G-9 D Switch - Starter D-3 B
Seat With Seat Heater F-5 A Switch - Suction Line Shutoff Limit A-3 E
Sender - Engine Coolant Temp B-9 24 Switch - Travel Pressure D-7 39
Sender - Hydraulic Oil Temp A-3 E Switch - Window Limit F-1 A
Sensor - A/C Photo D-2 A Unit - Air Conditioner H-5 10
Sensor - Fuel Level A-2 16 Valve - Proportional Reducing A-7 33
Sensor - Pump Discharge Pressure A-7 26 Wiper Control D-1 A
Machine locations are repeated for components located close together.
A Located in the cab.
B Located in the righthand console.
C Located in the lefthand console.
D Located on or near relay panel.
E Located near hydraulic oil tank.
F Located under platform.
Connector Location
1
Connector Number
Schematic
Location
Machine
Location
CONN 1 A-9 1
CONN 2 SIS Conn. H-9 D
CONN 3 G-8 D
CONN 4 G-8 D
CONN 5 G-8 D
CONN 6 F-8 D
CONN 7 F-8 D
CONN 8 F-8 D
CONN 9 F-7 D
CONN 10 F-7 D
CONN 11 G-7 D
CONN 12 B-6 A
CONN 13 B-6 A
CONN 14 B-5 A
CONN 15 B-5 A
CONN 16 B-5 F
CONN 17 B-5 F
CONN 18 C-5 F
CONN 19 F-5 F
CONN 20 F-5 F
CONN 21 H-5 4
CONN 22 H-5 F
CONN 23 H-5 F
CONN 24 H-5 F
CONN 25 H-4 F
CONN 26 H-4 F
CONN 27 H-4 F
CONN 28 F-4 F
CONN 29 F-4 F
CONN 30 F-4 F
CONN 31 F-4 F
CONN 32 Eng/Pump Cont. B-4, C-4 2
CONN 33 Eng/Pump Cont. A-4, B-4 3
CONN 34 A-3 5
CONN 35 C-3 8
CONN 36 C-3 9
CONN 37 C-2 7
CONN 38 A-2 6
CONN 39 H-1 10
1
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
Title Form Number
Alternator: 100-5047 SENR2082
Engine/Pump Control SENR9291
Starting And Charging SENR9292
Starting Motor: (6V-5227)
Consist: (6V-5538) SENR4975
Resistor, Sender and Solenoid Specifications
Part No. Component Description Resistance (Ohms)¹
3E-6332 Solenoid: Valve - Start Aid 6.0
3E-7985 Solenoid: Engine Shutdown 1.55 ± 0.15
10.3 ± 1.03
4I-5394 Sender: Hydraulic Oil Temperature 6134 to 7496
102-8017 Resistor: Backup 52.0 ± 2.6
128-8945 Sender: Engine Coolant Temperature 6134 to 7496
¹ At room temperature.
Real Time Error Codes
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 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 (43Volts)
4102 Over-Current In The Proportional Reducing Valve
4103 Proportional Reducing Valve Circuit Is Open
4105 Over-Current In The Digital Output (Trenching Solenoid)
4106 Over-Current In The Digital Output (Fine Control Solenoid)
4107 Over-Current In The Digital Output (Travel Speed Change Solenoid)
4108 Over-Current In The Digital Output (Travel Alarm)
410A Over-Current In The Digital Output (Swing Break Solenoid)
4201 Engine Speed Is Not Normal
4202 Engine Coolant Temperature Sensor
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 One Of The Specified 10
4301 Data Mismatch 1 Between The Alternator And The Speed Sensor (Alternator Is Abnormal)
4302 Data Mismatch 2 Between The Alternator And The Speed Sensor (Speed Sensor Is Abnormal)
4303 Engine Stalls
A201 Monitor Communications Is not normal
A202 Monitor Takes Too Much Time To Respond To The Controller's Signal
A203 Communication Is Abnormal In The Controller
Off Machine Switch Specification
Part No. Function Actuate Deactuate Contact Position
3E-6449 Start Aid Coolant Temperature 38 ± 3° C 27° C Min. Normally Closed
(100 ± 5° F) (80.6° F)
3E-6455 Primary Steering Oil Pressure 1200 kPa MAX 700 ± 100 kPa A-C, Normally Closed
Secondary Steering Oil Pressure (175 psi MAX) (100 ± 15 psi) A-B, Normally Open
106-0179 Implement Pressure 1225.00 ± 98 kPa 882.00 kPa MIN Normally Open
Travel Pressure (177.67 ± 14.21 psi) (128.92 psi MIN)
106-0180 Boom Raise Pressure 2646.00 ± 196 kPa 2646.00 ± 196 kPa A-B, Normally Open
(383.77 ± 28.43 psi) (383.77 ± 28.43 psi) A-C, Normally Closed
106-0181 ATCH Flow Control Pressure 490 ± 49 kPa MAX 290 kPa MIN Normally Open
ATCH Aux Hydraulic Pressure (71 ± 7 psi MAX) (42 psi MIN)
ATCH Hammer Pressure
Wire Description
Wire
Number
Wire
Color
Description
Wire
Number
Wire
Color
Description
Power Distribution Circuits Accessory Circuits (cont'd)
101 RD Bat (+) 513 OR A/C Compressor/Refrigerant Pressure Sw
103 RD Aux Ckt 519 PK Thermostat To Refrigerant Press. SW
105 RD Key Sw 530 OR Washer Right
109 RD Alt Output (+) Term. 575 YL Wiper-Aux (Park)
110 RD Aux Ckt 576 PK Wiper-Aux (Low)
111 RD Aux Ckt 578 BU Washer-Aux
112 PU Main Power Rly Output 579 BR A/C Blower Motor No. 1
113 OR VIMS B+ Switched 590 GY Wiper Sw To Intermittent Module
118 GY Aux Ckt 592 BU DC/DC Converter Power Output
120 YL Aux Ckt A513 RD DC/DC Converter Memory Output
124 RD A/C A537 PK Seat Heater (Resistive Element In Seat)
129 BU Aux Ckt A579 OR Wiper Motor +
135 BU Aux Ckt A580 BR Wiper Motor
140 BU Aux Ckt A581 GN Wiper Motor Raise
147 PU Aux Ckt A582 PU Wiper Motor Stop
149 PU Aux Ckt A583 YL Power Window Interlock To Wiper Cont
150 RD Bat (+) A584 BU Front Window Limit SW To Wiper Cont
151 GN Aux Ckt A586 OR Wiper SW To Wiper Cont
152 BU Aux Ckt A587 YL Power Window Cont To Safety Sol Relay
154 RD Aux Ckt A588 GN Safety Sol Relay To Sol
168 RD Aux Ckt A589 OR Power Window Up
169 RD Aux Ckt A590 BU Power Window Down
172 RD Aux Ckt A591 PU Rear Window Limit SW
173 YL Aux Ckt C537 GN A/C Photo Sensor + Sig
175 RD Aux Ckt C538 OR A/C Photo Sensor - Sig
176 YL Aux Ckt
Lighting Circuits
177 RD Main Brkr 607 PK Flood Lamps - Front
178 GN Main Brkr 615 YL Cab Flood Lamp
179 BU Aux Ckt 616 BU Boom Flood Lamp
185 YL Aux Ckt
Control Circuits
189 RD Aux Ckt 763 BU Torque Converter Sw
191 WH Aux Ckt 786 GN Engine Speed Cont
196 BU Aux Ckt 788 YL Engine Speed (+)
Ground Circuits
791 PK Engine Speed Cont
200 BK Main Chassis A755 PK Throttle Sw #1
201 BK Operator Monitor Return A756 BU Throttle Sw #2
210 BK Converter Output (24/12 Volt) A757 GY Throttle Sw #3
235 BK Electronic Pump Cont Gnd A758 BR Throttle Sw #4
Basic Machine Circuits
A761 PU Elec Pump Cont Gov Feedback
304 WH Starter Relay No. 1 Output A762 PU Elec Pump Cont Eng Speed Ground
306 GN Starter Relay Coil To Neut Start SW Or Key SW A768 BU Pump Control Valve #1 (+)
307 OR Key SW To VIMS Sensor Module A769 GY Pump Control Valve #2 (-)
308 YL Main Power Relay Coil A770 PK Elec Pump Cont Bypass Sw
309 GY Alternator Regulator Terminal F771 OR Backup SW
310 PU Start Aid SW To Start Aid Sol F772 WH Backup Sw
320 RD Horn Relay Coil To SW F773 OR Governor Accel
321 BR Backup Alarm Lamp Travel Alarm F774 WH Governor Decel
322 GY Backup Alarm Lamp Travel Alarm 950 GN Hammer Sw Cont
323 WH Fuel Pump Power 951 RD Hammer Sol Cont
325 PK Fuel Pump Relay Cut-Out 954 WH Hammer Sw A
327 PK Shutdown Sol K904 GN Pump Discharge - Signal
330 YL Neutral Start Relay Coil K905 RD Pump Discharge - (+) B
365 YL Fuel Pump Relay To SW K906 GN Swing Brake Sol - Signal
Monitoring Circuits
K907 BU Swing Brake Sol - (+) B
403 GN Alternator (R) Term. K909 BU Backup SW (+) B
405 GY Opr Mon Oil Press. (Low Setting) K911 PK E/P Controller RS485 (+)
412 BU Opr Mon Cool Flow K912 GN E/P Controller RS485 (-)
430 BU Opr Mon Air Filter K915 GN Fine Swing Sw- E/P Controller
487 OR Hyd Oil Flow SW L908 OR Controller RS-232C Tx
491 PK Hyd Oil Temp Sensor L909 BU Controller RS-232C Rx
492 GY Coolant Temp Sensor Signal L968 OR Electronic Pump Control Ps Valve (-)
495 GN Fuel Level Signal L969 WH Electronic Pump Control Ps Valve (+)
496 WH Opr Mon Panel Hyd Oil Level L970 GY Electronic Pump Cont To Sw Common Return
C468 BU Engine Oil Level L971 GN Electronic Pump Cont To Travel Pressure Sw
Accessory Circuits
L972 BU Low Idle Switch
501 GN Wiper - Front (Low) L973 GN Fine Swing Cont Relay To Sol Valve
506 PU Washer - Front L974 GN Electronic Pump Cont Boom Raise Press Sw
508 PU Radio Speaker-Left L975 PK Start Aid Cont Lamp Output
509 WH Radio Speaker-Left (Common) L976 GN Excavator Fuel Pump Switch
511 BR Radio Speaker-Right L977 YL Trenching Sol
512 GN Radio Speaker-Right (Common) L978 GY Level Finish Sol
A
3
4
5
6
8
9
10
11
12
14
15
13
16
B
C
D
E
1
2
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
35
33
34
36
38
7
F
39
40
41
A
3
4
5
8
9
10
11
12
14
15
13
16
B
C
D
E
1
2
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
41
35
33
34
36
38
7
F
39
40
17
16
12
Machine Harness Connector And Component Locations
A AA
1
2
325-PK-14
200-BK-14
T
This indicates that the component does not have a wire connected to ground. It is
grounded by being fastened to the machine.
This indicates that the component has a wire connected to it that is connected to ground.
105-9344
T
Normally open switch that will close with an increase of a specific condition (temp-press-etc.).
The circle indicates that the component has screw terminals and a wire can be disconnected from it.
Pin
Socket
Fuse
Component
Part Number
Pin or Socket
Number
Receptacle
Plug
Wire Gauge
Wire, Cable, or Harness
Assembly Identification
Wire Color
Normally closed switch that will open with an increase of a specific condition.
No circle indicates that the wire cannot be disconnected from the component.
Single Wire
Connector
Circuit Number
Identification
Ground
Connection
Pressure
Symbol
Temperature
Symbol
Level
Symbol
Flow
Symbol
Circuit Breaker
Symbol
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.
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.
Harness And Wire Symbols
Electrical Schematic Symbols And Definitions
1
1
2
2
Typical representation of a Sure-Seal
connector. The plug and receptacle
contain both pins and sockets.
Typical representation of a Deutsch
connector. The plug contains all
sockets and the receptacle contains
all pins.
SENR8994-01
November 1999
330B Excavators
Electrical System
9HN1-UP
2RR1-UP
8SR1-UP
8TR1-UP
1JS1-UP
1KS1-UP
4YW1-UP
3ZZ1-UP
5EZ1-UP
607-PK-18
306-GN-18
322-GY-18
616-BU
386-PK-18
12
11
10
9
8
7
1
2
6
4
3
5
168-RD-14
K997-BU-18
K904-GN-18
200-BK-18
200-BK-18
487-OR-18
200-BK-18
200-BK-18
200-BK-18
200-BK-18
495-GN-18
607-PK-18
322-GY-18
616-BU
491-PK-18
496-WH-18
A768-BU-18
A769-GY-18
L978-GY-18
763-BU-18
L977-YL-18
386-PK-18
306-GN-18
168-RD-14
200-BK-18
200-BK-18
200-BK-18
CHASSIS
168-RD-14
487-OR-18
200-BK
1
2
ATCH
FLOW CONT
SOL
122-4459
951-PK-18
2
1
MM
200-BK-18
200-BK-18
951-PK-18
ATCH
FLOW CONT
SOL
121-6303
200-BK-18
200-BK-18
326-RD
200-BK-18
BK-00
200-BK-18
200-BK-18
487-OR-18
168-RD-14
L971-GN-18
487-OR-18
168-RD-14
200-BK
140-BU
578-BU-18
506-PU-18
107-RD
310-PU-18 103-RD-18
200-BK-18
311-WH-18
310-PU-18
200-BK-18
430-BU-18
200-BK-18
412-BU-18
321-BR-18
200-BK-18
310-PU-18
172-RD-18
140-BU
578-BU-18
Z
A768-BU-18
ATCH
LOWER WASHER
7T-8890
WASHER
7T-8890
430-BU-18
412-BU-18
506-PU-18
412-BU-18
200-BK-18
321-BR-18
MOTOR
2
1
COOLANT
LEVEL SW
109-9436
412-BU-18
200-BK-18
519-PK-18
B
492-GY-18
140-BU
200-BK
B
ATCH
TRAVEL ALARM
3E-7738
ATCH AUTO
LUBRICATION PUMP
127-5264
405-GY-18
310-PU-18
C468-BU-18
A762-PU-18
321-BR-18
311-WH-18
788-YL-18
200-BK
2
1
430-BU-18
403-GN-18
200-BK-18
311-WH-18
326-RD
200-BK-18
495-GN-18
496-WH-18
491-PK-18
311-WH-18
A769-GY-18
321-BR-18
109-RD-6
109-RD-6
101-RD-6
403-GN-18
304-WH-8
304-WH-8
607-PK-18
322-GY-18
101-RD-6
MOTOR
616-BU
A A
AA
B
A
306-GN-18
386-PK-18
K997-BU-18
763-BU-18
WH-18
L977-YL-18
A762-PU-18
L978-GY-18
L974-GN-18
A771-PU-18
K906-GN-18
430-BU-18
K904-GN-18
405-GY-18
A761-PU-18
788-YL-18
A762-PU-18
F773-OR-18
F774-WH-18
F774-WH-18
A761-PU-18
F773-OR-18
147-PU-18
492-GY-18
496-WH-18
L973-GN-18
K997-BU-18
A771-PU-18
586-BR-18
L974-GN-18
C468-BU-18
200-BK-18
495-GN-18
607-PK-18
322-GY-18
616-BU
K904-GN-18
491-PK-18
L977-YL-18
L978-GY-18
763-BU-18
A768-BU-18
A769-GY-18
K906-GN-18
172-RD-18
386-PK-18
306-GN-18
AIR CLEANER SW
109-9330
1
2
GROUND
ON(KEY)
AA A
NB B
B
CHASSIS
A
B
B
B
2
1
ATCH
START AID
SOL
3E-6332
200-BK
326-RD
200-BK-18
L977-YL-18
200-BK-18
763-BU-18
200-BK-18
L978-GY-18
A769-GY-18
A768-BU-18
306-GN-18
386-PK-18
L977-YL-18
763-BU-18
L978-GY-18
A769-GY-18
A768-BU-18
496-WH-18
491-PK-18
2
TRAVEL
PRESS SW
106-0179
L971-GN-18
200-BK-18
L974-GN-18
200-BK-18
616-BU
322-GY-18
607-PK-18
7
495-GN-18
586-BR-18
200-BK-18
147-PU-18
L973-GN-18
K906-GN-18
200-BK-18
SWING
BRAKE SOL
121-1491
Z
1
2
1
2
2
1
B
1
2
N
TRAVEL SPEED
SOL
121-1491
TRENCHING
SOL
121-1490
2
1
LEVEL FINISH
SOL
121-1490
ENG/PUMP CONT
SOL
111-9916
1
2
B
2
1
BOOM RAISE
PRESS SW
106-0180
ATCH
FINE SWING
SOL
116-3526
ATCH
HAMMER CONT
SOL
116-3413
2
1
B
3
B
B B B
1
1
2
3
4
1
2
5
11
6
7
12
8
9
10
10
5
11
12
4
6
9
8
200-BK-18
BK
BK/PK
2
1
10
9
8
7
6
5
4
3
2
1
12
11
200-BK-18
301-BU-14
301-BU-14
301-BU-14
200-BK-14
200-BK-18
200-BK-18
L971-GN-18
200-BK-18
EE
BK-00
(NOTE B)
RD-00
(NOTE B)
RD-00
(NOTE B)
CC
BB
AA
GG
FF
POS
NEG NEG
POS
BATTERY
3T-5760
POS
NEGNEG
POS
RD-00
RD-00
ATCH
BATTERY
3T-5760
6
487-OR-18
200-BK-18
200-BK-18
K904-GN-18
K997-BU-18
5
4
3
2
1
200-BK-18
OPERATOR STATION
200-BK-18
200-BK-18
200-BK-18
200-BK 200-BK
200-BK-18
B
2
1
IMPLEMENT
PRESS SW
106-0179
200-BK-18
A771-PU-18
519-PK-18
MOTOR
F774-WH-18
A/C CLUTCH
SOL
154-0490
ALT
R
B+
BU-18
A
B
C
A
788-YL-18
519-PK-18
200-BK-18
F773-OR-18
311-WH-18
311-WH-18
C468-BU-18
200-BK-18
492-GY-18
492-GY-18
ENG SPEED
PICKUP
6V-2455
RD-18
BK-18
CHASSIS
ENG OIL
PRESS SW
3E-6455
1
2
A761-PU-18
200-BK-18
K997-BU-18
200-BK-18
405-GY-18
172-RD-18
F774-WH-18
F773-OR-18
172-RD-18
K904-GN-18
200-BK-18
ATCH
START AID
COOLANT TEMP SW
3E-6449
200-BK-18
B-
K997-BU-18
STARTER
MOTOR
6V-5227
6V-0512 (NOTE B)
304-WH-8
K904-GN-18
763-BU-18
B
G S
MTR BAT
304-WH-8
ENG
SHUTDOWN SOL
3E-7985
101-RD-6
L978-GY-18
RD-00
L977-YL-18
RD-00
C
200-BK-14
A769-GY-18
B
B
A768-BU-18
200-BK-18
1
491-PK-18
496-WH-18
200-BK-6
2
2
1
BK-00
ENG OIL
LEVEL SW
111-4759
405-GY-18
101-RD-6
ALTERNATOR
100-5047
A762-PU-18
200-BK-18
788-YL-18
519-PK-18
C
311-WH-18
492-GY-18
405-GY-18
386-PK-18
KEY
200-BK-18
200-BK
A761-PU-18
B
C
B
B
B
HH
ENG GOV
ACTUATOR
106-0126
306-GN-18
616-BU
322-GY-18
607-PK-18
C
6
DECEL
200-BK-18
495-GN-18
200-BK
200-BK-18
1
2
BK-18
B
ACCEL
+B
F/B
GND
B
CHASSIS
AA
EE(NOTE B)
C
B
YL-18
BR-18
BK-18
+B
GROUND
200-BK-18
A758-BR-18
A757-GY-18
A756-BU-18
105-RD-14
113-OR-18
791-PK-18
786-GN-18
129-BU-18
403-GN-18
200-BK-14
A586-OR-18
118-GY
506-PU-18
501-GN-18
A584-BU-18
A583-YL-18
590-GY-18
615-YL-18
K912-GN-18
103-RD-18
K911-PK-18
SIGNAL
PUMP DISCHARGE
PRESS SENSOR
106-0178
200-BK-6
B
L4
L3
T
ENG COOLANT
TEMP SENDER
128-8945
L2
H
C
L1
E
E
CAB
200-BK-18
E
E
530-OR-18
E
E
501-GN-18
+
590-GY-18
200-BK
2
200-BK-14
200-BK-18
200-BK-18
1
T
109-RD-6
L972-BU-18
H
ONE TOUCH
LOW IDLE SW
128-2134
A579-OR
403-GN-18
109-RD-6
A580-BR
403-GN-18
WIPER
MOTOR
122-9603
WIPER CONT
155-7042
A581-GN
A582-PU
A755-PK-18
200-BK-18
S4
S3
S2
S1
COM
200-BK-18
200-BK-18
200-BK-18
200-BK-18200-BK-18
H
200-BK-18
MONITOR
106-0172
SWITCH PANEL
153-2500
KEY SW
9G-7641
H
200-BK-18
200-BK-18
-
201-BK-18
SERVICE
METER
6T-7337
THROTTLE
POS SW
106-0107
MOTOR
200-BK-18
200-BK-18
200-BK-14
200-BK-14
235-BK-14
2
K905-RD-14
191-WH
118-GY
129-BU-18
615-YL
615-YL
191-WH-14
R
615-YL-18
103-RD-18
615-YL-18
200-BK-18
615-YL-18
C
308-YL-18
326-RD
307-OR-18
578-BU-18
L973-GN-18
K906-GN-18
A768-BU-18
A769-GY-18
A770-PK-18
F774-WH-18
F773-OR-18
575-YL-18
576-PK-18
K909-BU-18
310-PU-18
152-BU-18
586-BR-18
786-GN-18
791-PK-18
103-RD-18
129-BU-18
405-GY-18
321-BR-18
C468-BU-18
412-BU-18
763-BU-18
A762-PU-18
788-YL-18
L977-YL-18
L974-GN-18
L978-GY-18
A771-PU-18
487-OR-18
A761-PU-18
K904-GN-18
496-WH-18
430-BU-18
495-GN-18
491-PK-18
403-GN-18
615-YL-18
129-BU-18
103-RD-18
S
B
506-PU-18
118-GY
103-RD-18
118-GY
OFF
615-YL
492-GY-18
L971-GN-18
306-GN-18
191-WH
191-WH
615-YL-18
113-OR-18
147-PU
105-RD-14
185-YL-18
152-BU
191-WH-14
A587-YL-18
ON
112-PU-6
1
K905-RD-18
K997-BU-18
ST
OPERATOR STATION
200-BK
135-BU
120-YL
200-BK
ATCH 12V5A
CONVERTER
119-1733
GND
12V OUT
12V MEMORY
GND
24V IN
24V MEMORY
200-BK-18
320-OR-18
151-GN-18
154-RD-18
112-PU-14
112-PU-14
189-RD-14
111-RD-14
177-RD-14
177-RD-14
112-PU-14
112-PU-14
112-PU-14
112-PU-14
K905-RD-14
172-RD-18
150-RD-18
196-BU
185-YL-18
114-RD-18
103-RD-18
115-PK-14
149-PU
129-BU-18
118-GY
152-BU
191-WH-14
147-PU
113-OR-18
124-GN-14
120-YL
K905-RD-14
196-BU
140-BU
107-RD
114-RD-18
103-RD-18
105-RD-14
168-RD-14
107-RD
105-RD-14
168-RD-14
115-PK-14
149-PU
140-BU
113-OR-18
129-BU-18
124-GN-14
118-GY
152-BU
120-YL
191-WH-14
1
112-PU-14
185-YL-18
112-PU-14
150-RD-18
112-PU-14
147-PU-18
2
151-GN-18
112-PU-14
320-OR-18
177-RD-14
200-BK-18
112-PU-14
172-RD-18
112-PU-14
111-RD-14
154-RD-18
189-RD
5
3
6
2
1
7
8
9
10
3
11
12
4
508-PU-18
200-BK-18
147-PU-18
191-WH-14
149-PU
115-PK-14
168-RD-14
103-RD-18
114-RD-18
107-RD
140-BU
196-BU
K905-RD-14
177-RD-14
4
200-BK-18
5
200-BK-18
7
320-OR-18
6
5
189-RD
154-RD-18
111-RD-14
112-PU-14
172-RD-18
112-PU-14
112-PU-14
151-GN-18
112-PU-14
150-RD-18
4
2
1
512-GN-18
509-WH-18
511-BR-18
200-BK-18
615-YL-18
103-RD-18
8
1
2
3
5
6
7
112-PU-14
112-PU-14
4
308-YL-18
W.CCW
W.CW
REV
STOP
GND
WASH
ACC
WA+
LOW
INT (3)
WIPER CUT
RISE.S
GND
LIGHT
RS485-
+B
MAIN
RS485+
+B
L.CHASSIS
L.BOOM
WASH
W.LOW
CIGAR
LIGHTER
9W-0335
W.INT (6)
200-BK
307-OR-18
326-RD
308-YL-18
308-YL-18
GND
200-BK-18
L970-GY-18
L970-GY-18
954-GN-18
L970-GY-18
200-BK-18
147-PU-18
950-BR-18
147-PU-18
A584-BU-18
200-BK-18
200-BK-18
615-YL
200-BK-18
ATCH
FLOW CONT
PRESS SW
106-0181
1
2
950-BR-18
200-BK-18
C
B
A
3
2
200-BK-18
1
8
1
2
3
4
5
6
200-BK-18
3
1
2
ATCH
HAMMER
PRESS SW
106-0181
954-GN-18
200-BK-18
2
4
1
3
1
2
3
4
7
6
5
4
3
2
1
8
12
11
10
9
8
7
1
2
6
4
3
5
A537-PK-18
200-BK-18
WINDOW LIMIT SW
124-3974 (NOTE D)
200-BK-18
320-OR-18
150-RD-18
151-GN-18
154-RD-18
615-YL-18
113-OR-18
103-RD-18
200-BK-18
508-PU
509-WH
A588-GN-18
575-YL-18
152-BU-18
576-PK-18
200-BK-18
575-YL-18
5
152-BU-18
576-PK-18
200-BK
200-BK-18
200-BK-18
615-YL
A584-BU-18
200-BK-18
200-BK
615-YL
200-BK-18
ATCH
RADIO FOR JAPAN
AM/FM RADIO
153-2444
L8
615-YL-18
S
J
J
PLATFORM
A
F
ATCH POWER
WINDOW LIMIT SW
117-6306 (NOTE C)
615-YL
200-BK-18
200-BK-18
511-BR
512-GN
A
K905-RD-14
172-RD-18
150-RD-18
196-BU
L970-GY-18
200-BK-18
185-YL-18
176-YL
180-GN
112-PU-14
140-BU
149-PU
147-PU-18
168-RD-10
105-RD-14
107-RD
103-RD-18
114-RD-18
177-RD-14
177-RD-10
112-PU-14
191-WH-14
615-YL-18
HYD LOCK
SOL
121-1491
120-YL
2
1
ENG GOV
INSP LAMP
115-PK-14
HYD LOCK SOL
AUX CKT
AUX CKT
10A
10A
15A
10A
10A
10A
15A
120-YL
PLATFORMCHASSIS
GROUND STRAP
7G-1060
5
ATCH ANTENNA CABLE
111-4846
152-BU
6
112-PU-14
3
PWR WINDOW
CAB/CHASSIS LAMP
CONVERTER
LOWER WASHER/WIPER
WASHER/WIPER
118-GY
CIGAR LIGHTER
A/C /HEATER
189-RD-14
111-RD-14
10A
HORN
FUSE
10A 9W-1442
15A 9W-1441
20A 9W-1446
30A 8T-9636
BACKUP
D (NOTE H)
AB (NOTE J)
124-GN-14
LL
15A
DOME LAMP
KEY SW
REFUELING PUMP
129-BU-18
BOOM LAMP
113-OR-18
4
FLOW CONT SOL
10A
10A
30A
10A
10A
10A
10A
10A
20A
10A
15A
10A
E/P CONT
SPEAKER (+)
SPEAKER (-)
BACKUP
GND
SPEAKER (+)
ACC (+)
ILLUMI (+)
SPEAKER (-)
NEUTRAL START
LIMIT SW
111-4799
HORN SW
128-2134
200-BK-18
M
F
200-BK-18
CAB LAMP
121-1069
MM
L970-GY-18
2
1
D (NOTE H)
AB(NOTE J)
2
1
D (NOTE H)
AB (NOTE J)
ATCH LOWER
WIPER MOTOR
113-3452
+
S +1
-
MOTOR
EE
F
ATCH
AUX HYD
PRESS SW
106-0181
D (NOTE H)
AB(NOTE J)
A
615-YL-18
MF
A588-GN-18
LL
A588-GN-18
MM
10A
112-PU-14
112-PU-14
SW PANEL
LUBRICATOR
B
B
B
112-PU-6
150-RD-18
151-GN-18
172-RD-18
111-RD-14
154-RD-18
189-RD
320-OR-18
177-RD-14
196-BU
140-BU
107-RD
114-RD-18
168-RD-14
L
147-PU-18
115-PK-14
149-PU
S
A
200-BK-18
A
2
1
A589-OR-18
A590-BU-18
A587-YL-18
A583-YL-18
191-WH-14
A584-BU-18
615-YL
200-BK-14
103-RD-18
508-PU-18
509-WH-18
511-BR-18
512-GN-18
118-GY
506-PU-18
A584-BU-18
A583-YL-18
590-GY-18
501-GN-18
A586-OR-18
200-BK-14
K911-PK-18
K912-GN-18
103-RD-18
129-BU-18
403-GN-18
615-YL-18
191-WH-18
K915-GN-18
K905-RD-18
235-BK-14
K911-PK-18
K912-GN-18
A755-PK-18
A756-BU-18
A757-GY-18
A758-BR-18
308-YL-18
L972-BU-18
306-GN-18
L971-GN-18
12
403-GN-18
L969-WH-18
L968-OR-18
K907-BU-18
F772-WH-18
F771-OR-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
A771-PU-18
L978-GY-18
L974-GN-18
J
L977-YL-18
788-YL-18
A762-PU-18
763-BU-18
412-BU-18
A758-BR-18
A757-GY-18
A756-BU-18
A755-PK-18
105-RD-14
307-OR-18
326-RD
113-OR-18
791-PK-18
786-GN-18
A586-OR-18
501-GN-18
590-GY-18
200-BK-18
L972-BU-18
11
10
9
8
E
A
7
1
2
6
4
3
OPERATOR STATION
791-PK-18
786-GN-18
586-BR-18
152-BU
185-YL-18
105-RD-14
147-PU
113-OR-18
615-YL-18
191-WH
5
SHUTDOWN
JJJJ
112-PU-14
JJ
A589-OR-18
A590-BU-18
L972-BU-18
A758-BR-18
A757-GY-18
A756-BU-18
A755-PK-18
FUSE BASE
111-4812
A586-OR-18
501-GN-18
590-GY-18
200-BK-18
310-PU-18
K909-BU-18
576-PK-18
308-YL-18
F772-WH-18
F771-OR-18
L968-OR-18
L969-WH-18
K915-GN-18
K907-BU-18
H H
200-BK-18
200-BK-18
152-BU-18
575-YL-18
ATCH LOWER
WIPER SW
111-4785
ATCH LOWER
WASHER SW
111-4786
H
575-YL-18
FINE
SWING CONT SW
111-4788(NOTE G)
576-PK-18 F773-OR-18
F774-WH-18
A770-PK-18
615-YL-18
200-BK-18
200-BK-18
152-BU
152-BU-18
ATCH START
AID SW
111-4784
A769-GY-18
578-BU-18
A768-BU-18
ATCH POWER
WINDOW SW
111-4789
615-YL-18
615-YL-18
200-BK-18
200-BK-18
191-WH-18
A590-BU-18
HHH
A589-OR-18
615-YL-18
615-YL-18
200-BK-18
200-BK-18
ATCH HAMMER
CONT SW
111-4787
H
147-PU-18
A537-PK-18
615-YL-18
K906-GN-18
615-YL-18
200-BK-18
200-BK-18
200-BK-18
K915-GN-18
L973-GN-18
615-YL-18
615-YL-18
200-BK-18
200-BK-18
147-PU
586-BR-18
615-YL-18
615-YL-18
200-BK-18
L973-GN-18
615-YL-18
578-BU-18
200-BK-18
307-OR-18
326-RD
308-YL-18
310-PU-18
191-WH
615-YL-18
ATCH SEAT
HEATER SW
111-4783
C468-BU-18
K905-RD-18
403-GN-18
8
1
2
3
4
5
6
7
H
5
3
4
6
2
1
7
8
9
10
11
12
C468-BU-18
321-BR-18
ATCH
SEAT WITH
SEAT HEATER
111-6458
200-BK-18
A537-PK-18
4
3
2
1
405-GY-18
F771-OR-18
185-YL-18
200-BK-18
F774-WH-18
185-YL-18
F772-WH-18
F773-OR-18
H
K909-BU-18
F773-OR-18
BACKUP SW
(G/A)
110-7884
H H
185-YL-18
K906-GN-18
A768-BU-18
A769-GY-18
BACKUP SW
114-0421
L968-OR-18
K909-BU-18
R.LIMIT
GND
F.LIMIT
+B
NEUTRAL
WIPER
SW.UP
SW.DOWN
L970-GY-18
615-YL-18
L971-GN-18
403-GN-18
306-GN-18
129-BU-18
487-OR-18
103-RD-18
A761-PU-18
K912-GN-18
K904-GN-18
K911-PK-18
496-WH-18
K997-BU-18
430-BU-18
200-BK-14
495-GN-18
A586-OR-18
491-PK-18
501-GN-18
492-GY-18
590-GY-18
7
A583-YL-18
A584-BU-18
506-PU-18
6
5
4
3
2
12
11
10
9
8
7
1
2
6
4
3
5
1
2
3
4
5
6
1
405-GY-18
118-GY
321-BR-18
185-YL-18
A770-PK-18
185-YL-18
F772-WH-18
F774-WH-18
H
F771-OR-18
K906-GN-18
L969-WH-18
A768-BU-18
A769-GY-18
K907-BU-18
K909-BU-18
A769-GY-18
512-GN-18
CAB
511-BR-18
A768-BU-18
K906-GN-18
200-BK-18
A770-PK-18
L969-WH-18
L968-OR-18
185-YL-18
K909-BU-18
576-PK-18
575-YL-18
152-BU
578-BU-18
A590-BU-18
A589-OR-18
147-PU-18
A537-PK-18
L973-GN-18
K915-GN-18
147-PU
586-BR-18
310-PU-18
DOME LAMP
096-0721
615-YL-18
509-WH-18
508-PU-18
103-RD-18
2
3
C468-BU-18
4
412-BU-18
5
763-BU-18
6
A762-PU-18
1
788-YL-18
8
7
L977-YL-18
K907-BU-18
200-BK-14
615-YL
L974-GN-18
A584-BU-18
L978-GY-18
A771-PU-18
306-GN-18
235-BK-18
L909-BU-18
L908-OR-18
L972-BU-18
308-YL-18
A758-BR-18
A757-GY-18
A756-BU-18
A755-PK-18
K912-GN-18
K911-PK-18
235-BK-18
K915-GN-18
F771-OR-18
F772-WH-18
K907-BU-18
L968-OR-18
L969-WH-18
403-GN-18
954-GN-18
38
SIS
CONNECTOR
A
B
C
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 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
CONTROLLER
106-0207
20
10
11
31
26
13
30
29
35
40
2
6
39
6
24
25
22
15
ALTERNATOR (R TERM)
RS485 - (RH JOYSTICK)
7
200-BK-18
12
TRAVEL ALARM
ENG OIL PRESS SW
36
SWING BRAKE SOL
200-BK-18
23
EPR VALVE (-)
17
21
8
RS485 + (LH JOYSTICK)
7
191-WH-14
8
RS485 - (LH JOYSTICK)
RS485 + (PEDAL)
9
10
RS485 + (SEMI AUTO)
RS485 - (PEDAL)
RS485 + (RADIO CONT)
17
SWING BRAKE SW
RS485 + (MONITOR)
RS485 - (SEMI AUTO)
SWING BRAKE INDICATOR
RS485 + (RH JOYSTICK)
RS485 - (MONITOR)
27
18
RS232C (RX)
TRAVEL SW
HYD OIL FILTER INDICATOR
18
RS485 - (RADIO CONT)
RS485 + (ELEC GOV)
19
+B
+B
AIH INDICATOR
FINE SWING SW
ELEC GOV THROTTLE DIAL
RS485(+)
BOOM RAISE PRESS SW
LEVEL FINISH SOL
ENG POWER CHANGE SOL
OPTION PRESS SW
32
33
25
KEY SW (ON)
RS485 - (ELEC GOV)
26
ATCH SPEAKER(L)
7Y-5505
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
ATCH SPEAKER(R)
7Y-5505
GND
GND
OPTION SW (2)
RS232C (TX)
KEY SW (START)
A
STRAIGHT TRAVEL SW
37
4
3
OPTION SENSOR (PWM)
1
16
19
5
OPTION SENSOR (PWM)
OPTION SOL
32
33
14
28
34
8
A583-YL-18
2
1
8
3
5
4
7
6
A587-YL-18
A590-BU-18
A589-OR-18
200-BK-18
ATCH POWER
WINDOW LIMIT SW
117-6306(NOTE C)
A591-PU-18
A591-PU-18
ATCH POWER
WINDOW CONT
117-6305
7
6
5
4
3
8
1
2
200-BK-18
5
4
3
2
1
6
F
200-BK-14
A
323-WH-14
A
A
F
F
F
F
F
F E E
A
A A A
200-BK
A589-OR-18
A590-BU-18
A587-YL-18
A583-YL-18
191-WH-14
A584-BU-18
L1
200-BK-18
200-BK-18
200-BK-18
200-BK-18
ATCH
REFUELING
STOP RELAY
111-4871
6
BK
BK
200-BK-18
616-BU
200-BK
200-BK
200-BK-18
200-BK-18
200-BK-18
200-BK-18
A584-BU-18
615-YL
322-GY-18
ATCH
ANTENNA
106-0036
L975-PK-18
200-BK-14
200-BK-18
200-BK
616-BU
322-GY-18
200-BK-18
+
-
200-BK-18
200-BK-18
200-BK-18
200-BK-18
F
A/C PHOTO
SENSOR
113-3431
Y/G
Y/W
C537-GN-18
C538-OR-18
129-BU-18
403-GN-18
L36
L34
L35
L36
L34
L35
L34
L36
L36
L34
L35
L35
L37
L38
L39
L38
L39
L42
L39
L38
L36
L34
L35
L42
L35
L34
L36
L27
L26
L27
L26
L46
L46
L22
L33
200-BK-18
L17
L28
200-BK-18
200-BK-18
A584-BU-18
L44
L43
200-BK-18
201-BK-18
306-GN-18
C537-GN-18
C538-OR-18
386-PK-18
L28
L23
L1
200-BK-14
L29
L30
L31
L14
L15
L13
L15
L5
L6
L7L8
L9
L30L14L29L28
L40
L41
L40
L46
L45
L11
L10
L9
L8
L7
L6
L5
L4
L3
L2
L44L43
L11
L10
L10
L21
L20
L19
L22
L18
L21
L12
L12
L20
496-WH-18
L19
306-GN-18
L12
L45
BK
YL
L16
L19
L15
200-BK-18
L14
L13
D (NOTE H)
AB (NOTE J)
D (NOTE H)
AB (NOTE J)
D (NOTE H)
AB (NOTE J)
D (NOTE H)
AB (NOTE J)
L16
L33
L20
L31
L29
L21
200-BK-18
L41
L30
L15
L17
L32
L31
L30
L29
L16
L23
AB
(NOTE J)
AB
(NOTE J)
ATCH
MAIN
RELAY
159-9108
(NOTE J)
ATCH
MAIN
RELAY
RESISTOR
163-6616
(NOTE J)
D (NOTE H)
AB (NOTE J)
AE
AD
AC
AB
NOTE H: NOT USE WITH COLD WEATHER FOR JAPAN.
530-OR-18
530-OR-18
L14
200-BK-14
200-BK-14
200-BK
615-YL-18
L13
L1
200-BK-14
2
530-OR-18
519-PK-18
200-BK-14
200-BK
175-RD-14
177-RD-14
177-RD-14
L23
177-RD-14
L16
L17
ATCH
ANTENNA CABLE
153-2504
L16
L32
L31
L30
L29
177-RD-14
1
NOTE J: USE WITH COLD WEATHER FOR JAPAN.
U
L41
2
L47
L35
L34
L36
L27
L26
RR(NOTE H)
AD(NOTE J)
U
NN
NN
ATCH
AM/FM RADIO
(CASSETTE)
153-2503
ATCH RADIO WITH CASSETTE DECK FOR JAPAN
ANTENNA
113-OR-18
103-RD-18
615-YL-18
508-PU-18
200-BK-18
511-BR-18
509-WH-18
512-GN-18
6
3
5
4
2
1
7
8
C560-OR-18
C566-PK-18
SPEAKER (+)
6
7
AUX-SPEAKER(+)
8
4
1
5
2
10
9
3
615-YL-18
113-OR-18
103-RD-18
200-BK-18
508-PU-18
509-WH-18
511-BR-18
512-GN-18
GND
SPEAKER (+)
SPEAKER (-)
ACC
ILLUMI
BACKUP
AUX-SPEAKER(-)
SPEAKER (-)
1
2
13
12
10
7
4
9
6
5
A586-OR-18
L47
W.INT (3)
530-OR-18
177-RD-14
308-YL-18
L23
1
491-PK-18
386-PK-18
200-BK-18
154-RD-18
307-OR-18
487-OR-18
200-BK-18
L975-PK-18
1
B
2
3
B
A586-OR-18
B
590-GY-18
8
11
B
3
4
3
308-YL-18
L1
L18
7
L26
308-YL-18
ATCH
SUCTION LINE
SHUTOFF LIMIT SW
3E-5181
L19
177-RD-14
200-BK-18
FAN RELAY
111-4871
116-BR-14
6
L27
HYD OIL
TEMP SENDER
4I-5394
FUEL LEVEL
SENSOR
105-9911
1
ATCH
REFUELING SW
5C-6108
L35
2
1
HYD OIL
LEVEL SW
111-4760
4
L34
L47
3
T
L20
B
325-PK-18
496-WH-18
200-BK-18
200-BK-18
491-PK-18
495-GN-18
306-GN-18
386-PK-18
L21
A771-PU-18
L978-GY-18
L974-GN-18
L977-YL-18
788-YL-18
A762-PU-18
G
BR
R
R/L
B
A/C UNIT
130-0250
ATCH
HEATER UNIT
139-7258
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
12
A
L971-GN-18
G
L36
11
10
FAN
175-RD-14
L36
177-RD-14
177-RD-14
519-PK-18
235-BK-18
D (NOTE H)
AB (NOTE J)
A
L909-BU-18
C
D
E
B
CONNECTOR
L908-OR-18
3
L908-OR
235-BK
L909-BU
L
200-BK-18
L908-OR
L909-BU
235-BK
150-RD-18
151-GN-18
A588-GN-18
A587-YL-18
2
L909-BU-18
L908-OR-18
H
L36
D (NOTE H)
AB (NOTE J)
177-RD-14
D (NOTE H)
AB (NOTE J)
116-BR-14
200-BK-18
177-RD-14
235-BK-18
175-RD-14
A/C SWITCH
PANEL
139-7207
ATCH HEATER
SWITCH PANEL
139-7261
K997-BU-18
L908-OR-18
L909-BU-18
235-BK-18
177-RD-14
ZZ (NOTE H)
AE (NOTE J)
ZZ (NOTE H)
AE (NOTE J)
RR (NOTE H)
AD (NOTE J)
2
1
L34
L4
150-RD-18
147-PU
FINE SWING SOL
116-BR-14
113-OR-18
RADIO
147-PU-18
C538-OR-18
C537-GN-18
Y/W
2
2
1
147-PU-18
Y/G
200-BK-18
114-RD-18
322-GY-18
320-OR-18
149-PU
786-GN-18
177-RD-6
168-RD-10
616-BU
200-BK-18
306-GN-18
1
177-RD-8
306-GN-18
616-BU
322-GY-18
607-PK-18
386-PK-18
113-OR-18
177-RD-10
950-BR-18
A587-YL-18
A588-GN-18
150-RD-18
151-GN-18
4
RELAY PANEL
113-OR-18
K905-RD-18
113-OR-18
4
200-BK-18
116-BR-14
308-YL-18
308-YL-18
616-BU
786-GN-18
149-PU
320-OR-18
322-GY-18
951-PK-18
950-BR-18
147-PU-18
615-YL
607-PK-18
791-PK-18
115-PK-14
116-BR-14
116-BR-14
200-BK-18
200-BK
K909-BU-18
147-PU-18
K997-BU-18
950-BR-18
951-PK-18
ATCH
FLOW CONT RELAY
111-4871
K997-BU-18
111-RD-14
200-BK
MONITOR +B OUT
147-PU-18
189-RD
177-RD-14
116-BR-14
177-RD-14
4
200-BK-18
W
W
Y
Y
Y
ATCH
CONVERTER
134-1346
TO RADIO
ATCH RADIO CONVERTER FOR OUTSIDE JAPAN
512-GN-18
509-WH-18
511-BR-18
508-PU-18
A513-RD-18
8
6
116-BR-14
7
954-GN-18
4
2
5
1
3
592-BU-18
GND
IGN
592-BU-18
A513-RD-18
111-RD-14
308-YL-18
325-PK-18
191-WH-18
200-BK-18
307-OR-18
12V
MEM
24V
113-OR-18
103-RD-18
508-PU-18
200-BK-18
113-OR-18
103-RD-18
511-BR-18
RELAY PANEL
RELAY PANEL
L35
6
4
K997-BU-18
2
5
1
3
ANTENNA
200-BK-18
509-WH-18
196-BU
YY
112-PU-18
512-GN-18
196-BU
K905-RD-18
112-PU-6
113-OR-18
K911-PK-18
K997-BU-18
103-RD-18
200-BK
140-BU
K912-GN-18
615-YL-18
115-PK-14
INT (6)
A583-YL-18
116-BR-14
189-RD
A584-BU-18
111-RD-14
177-RD-14
501-GN-18
506-PU-18
118-GY
K909-BU-18
200-BK-18
530-OR-18
200-BK-18
154-RD-18
307-OR-18
954-GN-18
615-YL-18
6
1
3
4
5
2
A
791-PK-18
615-YL
235-BK-18
954-GN-18
304-WH-8
308-YL-18
154-RD-18
786-GN-18
951-PK-18
149-PU
320-OR-18
189-RD
114-RD-18
308-YL-18
200-BK-18
200-BK-18
200-BK-18
200-BK-18
200-BK-18
308-YL-18
GG
CC
DISCONNECT SW
7N-0718
7N-0719(NOTE B)
200-BK-18
ALT BREAKER
9S-0174
112-PU-6
OUT 1
OUT 2
+B
IN 2
GND
IN 1
D (NOTE H)
AB (NOTE J)
A
D (NOTE H)
AB (NOTE J)
A
UU (NOTE H)
AC (NOTE J)
VV
YY
D (NOTE H)
AB (NOTE J)
B
B MM
175-RD-14
WW VV
954-GN-18
UU(NOTE H)
AC(NOTE J)
XX
308-YL-18
8
5
4
3
2
1
NN
BACKUP
RESISTOR
102-8017
177-RD-14
200-BK-14
HYD LOCK
SOL RELAY
111-4871
8
3
11
9
2
1
4
5
6
7
10
12
K909-BU-18
200-BK-14
519-PK-18
200-BK-14
200-BK-14
304-WH-8
530-OR-18
615-YL-18
109-RD-6
A
A770-PK-18
954-GN-18
149-PU
149-PU-18
307-OR-18
200-BK-18
111-RD-14
177-RD-14
189-RD
111-RD-14
308-YL-18
200-BK-18
235-BK-18
K909-BU-18
A
TIMER RELAY
111-4870
116-BR-14
115-PK-18
101-RD-6
191-WH
101-RD-6
791-PK-18
607-PK-18
615-YL
196-BU
MAIN RELAY
3T-0376
(NOTE H)
151-GN-18
150-RD-18
200-BK
CAB/CHASSIS
LAMP RELAY
111-4871
191-WH-18
A588-GN-18
A587-YL-18
K909-BU-18
109-RD-6
115-PK-14
386-PK-18
115-PK-14
189-RD
114-RD-18
519-PK-18
XX
306-GN-18
4
5
60A
200-BK-18
320-OR-18
NEUTRAL START
RELAY
111-4871
791-PK-18
786-GN-18
786-GN-18
112-PU-6
154-RD-18
FOR
INSP LAMP
615-YL
200-BK-18
175-RD-14
124-GN-14
124-GN-14
149-PU
114-RD-18
BLOCK
121-1023
616-BU
304-WH-8
START RELAY
125-1302
6
3
12
2
1
7
11
8
9
HORN RELAY
111-4871
BOOM LAMP RELAY
111-4871
10
A770-PK-18
322-GY-18
200-BK
307-OR-18
154-RD-18
200-BK-18
G
BK-00
177-RD-14
BK-00
(NOTE B)
320-OR-18
114-RD-18
150-RD-18
A587-YL-18
A588-GN-18
200-BK-18
150-RD-18
114-RD-18
150-RD-18
9
10A
151-GN-18
386-PK-18
103-RD-18
175-RD-14
P
R (NOTE E)
175-RD-14
NOTE F: USE WITH X309HE,X310HE.
P
R (NOTE E)
B
1
2
3
4
103-RD-18
147-PU-18
D (NOTE H)
AB (NOTE J)
SS
SS
B
196-BU
103-RD-18
L908-OR-18
L909-BU-18
519-PK-18
K997-BU-18
365-YL-18
200-BK-14
168-RD-14
B
A
KK
1
2
487-OR-18
L975-PK-18
495-GN-18
607-PK-18
200-BK-18
L975-PK-18
325-PK-18
L975-PK-18
325-PK-18
103-RD-18
103-RD-18
168-RD-18
200-BK-14
308-YL-18
168-RD-14
103-RD-18
365-YL-18
L976-GN-18
L976-GN-18
L976-GN-18
L976-GN-18
306-GN-18
C
323-WH-14
168-RD-18
168-RD-18
DIODE
121-1022
L3
8
L2
L27
L23
L23
P
R (NOTE E)
A
L23
H
329-YL-18
L47
L976-GN-18
168-RD-18
326-RD
200-BK-18
329-YL-18
LL
KK
L1
168-RD-18
L975-PK-18
168-RD-18
SIGNAL
GROUND
V
B
177-RD-6177-RD-6
177-RD-6
177-RD-14
177-RD-14
177-RD-14
177-RD-14
177-RD-14
308-YL-18
308-YL-18
B
177-RD-14
MM
LL
K997-BU-18
177-RD-14
177-RD-14
177-RD-14
177-RD-14
MAIN BREAKER
9S-0174
101-RD-6
60A
D (NOTE H)
AB (NOTE J)
WW
487-OR-18
200-BK-18
322-GY-18
616-BU
V
G
HYD LOCK SW
10A
DIODE
121-1022
200-BK-18
615-YL-18
200-BK-18
511-BR
509-WH
512-GN
508-PU
147-PU
308-YL-18
+B
177-RD-14
168-RD-18
147-PU-18
A
NOTE G: USE WITH X249HE,X250HE,X251HE,X290HE,X291HE.
112-PU-6
147-PU-18
950-BR-18
K909-BU-18
HYD OIL
FILTER SW
116-3660
PLATFORM
C
B
PLATFORM
235-BK-14
200-BK-18
CAB LAMP
121-1069
WH-18
WH-18
WH-18
WH-18
310-PU-18
F773-OR-18
F774-WH-18
A769-GY-18
A768-BU-18
K906-GN-18
L973-GN-18
578-BU-18
326-RD
586-BR-18
7
951-PK-18
RR
168-RD-14
1
L971-GN-18
492-GY-18
491-PK-18
495-GN-18
430-BU-18
496-WH-18
K904-GN-18
A761-PU-18
A
788-YL-18
A762-PU-18
763-BU-18
412-BU-18
C468-BU-18
321-BR-18
405-GY-18
519-PK-18
A771-PU-18
L978-GY-18
L974-GN-18
L977-YL-18
607-PK-18
168-RD-14
322-GY-18
322-GY-18
200-BK-18
200-BK-18
200-BK
616-BU
200-BK
616-BU
ATCH
REFUELING
START RELAY
111-4871
168-RD-18
365-YL-18
200-BK-18
506-PU-18
403-GN-18
K905-RD-18
103-RD-18
147-PU-18
K997-BU-18
487-OR-18
235-BK-18
TT
(NOTE F)
107-RD
140-BU
Z
607-PK-18
E
168-RD-14
172-RD-18
200-BK
112-PU-6
L909-BU-18
200-BK-18
325-PK-18
365-YL-18
177-RD-14
A770-PK-18
149-PU
615-YL
154-RD-18
786-GN-18
791-PK-18
320-OR-18
114-RD-18
189-RD
115-PK-14
K909-BU-18
L976-GN-18
196-BU
A588-GN-18
150-RD-18
151-GN-18
306-GN-18
G
322-GY-18
111-RD-14
200-BK
616-BU
322-GY-18
U
NOTE B: USE WITH COLD WEATHER.
ZZ
P
R (NOTE E)
307-OR-18
116-BR-14
A587-YL-18
L908-OR-18
308-YL-18
COMPONENTS ARE SHOWN INSTALLED ON A FULLY
OPERABLE MACHINE WITH THE KEY AND ENGINE OFF.
GROUND STRAP
132-1805
THIS SCHEMATIC IS FOR THE 330B EXCAVATOR.
HH
GG
FF
EE
CC
BB
AA
CABLE AS.
VV
WIRE AS.
R
2
B
N
M
L
K
J
H
F
E
D
C
GY
PU
BR
RED
WHITE
ORANGE
YELLOW
PINK
ABBREV COLOR
BLACK
GRAY
PURPLE
BROWN
DESCRIPTIONSYMBOL
CONNECTOR
ELECTRICAL CONNECTION
INTERNAL ELECTRICAL
CONNECTION TO SURFACE
OF COMPONENT
BLADE, SPADE, RING,
OR SCREW TERMINAL
BK
PK
YL
OR
WH
RD
GN
BU
GREEN
BLUE
CIRCUIT CONNECTED
CIRCUIT NOT CONNECTED
ATCH WIRE, CABLE,
COMPONENT
L#
CIRCUIT GROUPING
DESIGNATION
IDENT PART NO. LOC
HARNESS AS.
B
200-BK-18
ATCH
BOOM LAMP
5I-8250
CHASSIS
ATCH
REFUELING PUMP
123-3929
ATCH
REFUELING PUMP
START SW (NO)
6T-9442
T
G
HORN
7Y-3919
K
K
K
ATCH
REFUELING PUMP
POWER RELAY
3T-0376
Y
YY
XX
TT
T
T
ATCH
REFUELING PUMP
STOP SW (NC)
9X-4184
S
T
WW
A
CHASSIS
LAMP
5I-8251
ATCH
BOOM LAMP
5I-8250
KK
W
U
NOTE E: USE WITH ADDITIONAL FUEL TANK.
NOTE D: NOT NECESSITY FOR ELECTRIC OPENABLE
WINDSHIELD.
NOTE C: USE WITH ELECTRIC OPENABLE WINDSHIELD.
177-RD-14
P
163-6683
153-2499
153-2562
121-1109
121-1034
121-1044
121-1115
116-0193
128-8971
116-0091
111-4834
116-0258
116-0146
153-2491
150-6999
111-4795
153-2555
153-2554
116-0163
150-7026
111-4841
116-0096
150-6998
121-1033
150-7022
116-0098
128-8970
G-8 (NOTE J)
H-2
F-8
G-7
G-7
A-3
C-3
F-7
B-2 (NOTE E)
F-7
G-1
H-5
C-2
H-5
F-4
B-6
B-5
G-8 (NOTE H)
A-9
H-1
H-4
B-2
H-5
F-2
H-1
A-2
B-2
200-BK
1
2
2
1
607-PK-18
3
4
5
6
HORN
7Y-3920
1
2
UU
163-6693
163-6692
163-6691
132-1827
128-8937
128-8938
7Y-8132
116-0242
116-0080
116-0162
125-4727
116-0080
116-0161
111-4831
111-4830
111-4829
116-0237
128-8936
111-4826
J-7 (NOTE J)
G-9 (NOTE J)
G-7 (NOTE J)
A-2
G-9 (NOTE H)
J-7 (NOTE H)
B-8
F-9 (NOTE B)
F-9 (NOTE B)
F-9 (NOTE B)
F-9
F-9
F-9
G-7
G-7
G-7
D-5 (NOTE F)
G-9
G-7 (NOTE H)
P
R (NOTE E)
177-RD-14
B
9 8 7 6 5 4 3 2 1
9 8 7 6 5 4 3 2 1
F
E
D
C
B
A
G
J
H
F
E
D
C
B
A
G
J
H
(116-0145 HE09)
UNLESS OTHERWISE SPECIFIED ALL WIRE IS 16 GAUGE.
TO MACHINE STRUCTURE
DIGITAL OUT (-)
DIGITAL OUT (-)
DIGITAL OUT (-)
ENGINE/PUMP
CONN 1
CONN 3
CONN 4
CONN 5
CONN 6 CONN 7 CONN 8
CONN 9
CONN 10
CONN 11
CONN 2
SIS
CONN 33
CONN 32
CONN 16
CONN 17
CONN 18
CONN 12
CONN 13
CONN 14
CONN 15
CONN 19
CONN 20 CONN 28 CONN 29
CONN 30 CONN 31
CONN 21
CONN 27
CONN 22
CONN 23
CONN 24 CONN 25 CONN 26
CONN 34
CONN 38
CONN 35
CONN 36
CONN 37
CONN 39
E94088
ALL DASHED LINES ARE ATTACHMENTS.
WIRES THAT HAVE BATTERY VOLTAGE
WHEN THE KEY SWITCH IS OFF.
WIRES THAT HAVE BATTERY VOLTAGE
WHEN THE KEY SWITCH IS ON.
STARTING CIRCUIT.
GAUGE CIRCUIT.
OPERATOR MONITOR.
WIPER/WASHER CIRCUIT.
HEATER AND AIR CONDITIONER
CIRCUIT.
GROUND CIRCUIT.
ENGINE SHUTDOWN CIRCUIT.
START AID CIRCUIT.
ENGINE/PUMP CONTROL.