T
Normally open switch that will close with an increase of a specific condition (temp-press-etc.).
Normally open switch that is closed due to an applied condition, and will open again with a
specific decrease in that condition.
Normally closed switch that will open with an increase of a specific condition.
Normally closed switch that is open due to an applied condition, and will close again
with a specific decrease in that condition.
The circle indicates that the component has screw terminals and a wire can be disconnected
from it.
No circle indicates that the wire cannot be disconnected from the component.
This indicates that the component has a wire connected to it that is connected to ground.
This indicates that the component does not have a wire connected to ground. It is grounded
by being fastened to the machine.
Electrical Schematic Symbols And Definitions
Pressure
Symbol
Temperature
Symbol
Level
Symbol
Flow
Symbol
A AA
2
A AA
1
2
325-PK-14
C
A
325-PK-14
200-BK-14
T
FUSE - A component in an electrical circuit that will open the circuit if too much current flows
through it.
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.
CIRCUIT BREAKER (C/B) - A component in an electrical circuit that will open the circuit if too
much current flows through it. This does not destroy the circuit breaker and it can be reset to
become part of the circuit again.
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 Electrical Schematic Symbols
Socket
Pin
Pin or Socket
Number
Wire, Cable, or Harness
Assembly Identification
Single Wire
Connector
Circuit Number
Identification
Wire
Gauge
Wire
Color
Plug
Receptacle
9X-1123
Component
Part Number
Electrical Schematic Symbols And Definitions
1
1
1
2
2
Typical representation of a
Sure-Seal connector. The
plugand receptacle contain
both pins and sockets.
Typical representation of a
Deutsch connector. The
plug contains all sockets
and the receptacle contains
all pins.
MAGNETIC LATCH SOLENOID - A magnetic latch solenoid is an electrical component that is
activated by electricity and held latch 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.
Component
Schematic
Location
Machine
Location
Component
Schematic
Location
Machine
Location
A/C Unit J-2 10 Sender - Hyd Oil Temp A-5 5
Alarm - Travel (Atch) D-9 2 Sensor - A/C Photo C-4 A
Alternator C-9 11 Sensor - Engine Speed B-9 20
Batteries F-9 13 Sensor - Fuel Level A-4 6
Block - Terminal G-8 D Sensor - Overload Warning Device O.W.D. A1 C-2 D
Breaker - Alternator H-7 D Sensor - Pump Discharge Press A-7 26
Breaker' Fuel Heater F-8 D Socket - 12v B-6 15
Breaker - Main H-8 D Solenoid - A/C Clutch C-7 27
Breaker - Warming Windshield F-7 D Solenoid - AC1 J-6 39
Cigar Lighter B-4 A Solenoid - AC2 J-6 39
Control- Overload Warning Device O.W.D. J-4 A Solenoid - Aux Pedal On/Off F-1 39
Control - Wiper B-4 A Solenoid - Engine Shutdown C-9 11
Controller - Aux/Hyd (Atch) J-7 33 Solenoid - Flow Control J-6 29
Controller - Engine/Pump D-2,E-2,F-2 2 Solenoid - Fine Swing D-7 28
Convertor B-6 15 Solenoid - Hammer 2 J-5 30
Diode - Main Relay J-8 D Solenoid - High Press A3 C-2 39
Diode - Refueling B-2 23 Solenoid - Hyd Lock E-1 G
Fuse - Block J-2,3,4 C Solenoid - Level Finish A-8 33
Ground - Cab B-4 H Solenoid - Low Press A2 C-2 39
Ground - Cab B-5 21 Solenoid - R1/R2 J-5 39
Ground - Chassis E-9 D Solenoid - Start Aid (Atch) E-9 31
Ground - Chassis B-9 20 Solenoid - Swing Brake D-7 32
Ground - Platform E-1 F Solenoid - Travel Speed A-8 33
Ground - Relay Panel H-8 D Solenoid - Trenching A-8 33
Ground - Strap Chassis/Platform G-5 2 Switch - Air Cleaner D-9 35
Horns C-2 16 Switch - Backup D-6 B
Joystick - Multiswitch F-3,H-4 A Switch - Boom Raise Press D-7 34
Meter - Service C-4 A Switch - Coolant Level D-9 36
Monitor C-4 A Switch - Disconnect H-9 D
Motor - Govener Assembly A-8 20 Switch - Engine Oil Level C-9 18
Motor - Lower Wiper F-1 F Switch - Engine Oil Press B-7 38
Motor - Starter B-9 20 Switch - Fine Swing Control D-5 B
Motor - Upper Wiper B-6 22 Switch - Foot Pedal-LH (Atch) H-5 A
Motor - Washer F-9 D Switch - Foot Pedal-RH (Atch) H-5 A
Pump - Auto Lubrication (Atch) D-9 7 Switch - Hyd Oil Filter A-5 E
Pump - Heater Fuel (Atch) F-7 D Switch - Hyd Oil Level A-6 E
Pump - Refueling B-2 D Switch - Implement Press D-7 39
Relay - Boom Lamp J-9 D Switch - Neutral Start Limet H-4 C
Relay - Cab/Chassis Lamp J-9 D Switch - Overload Warning Device O.W.D. D-5 B
Relay - Fuel Heater F-8 D Switch - Panel F-3 B
Relay - Hom J-9 D Switch - Pressure J-5 39
Relay - Hyd Lock Solenoid J-8 D Switch - Prox J-5 39
Relay - Main J-8 7 Switch - Refrigerant Low Press C-7 24
Relay - Neutral Start J-8 D Switch - Refueling (Atch) A-3 40
Relay - Refueling Pump Power (Atch) B-2 7 Switch - Refueling Pump Start (Atch) A-2 41
Relay - Refueling Start (Atch) A-2 23 Switch - Refueling Pump Stop (Atch) A-2 41
Relay - Refueling Stop (Atch) A-2 23 Switch - Seat Heater (Atch) D-4 B
Relay - Start J-7 D Switch - Speed Change D-6 B
Relay - Start Disable F-7 D Switch - Start Aid (Atch) D-5 B
Relay - Start Heater F-7 D Switch - Start Aid Coolant Temp (Atch) C-7 24
Relay - Timer J-7 A Switch - Starter E-3 B
Resistor - Backup J-8 24 Switch - Travel Press D-7 39
Seat W/Seat Heater (Atch) F-4 E Switch - Windshield B-4 A
Sender - Engine Coolant Temp C-7 38 Valve - Proportional Reducing A-7 33
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 relay panel.
E = Located around hydraulic oil tank.
F = Located around pilot manifold.
G = Located under platform.
Component Location
Connector Location
Connector Number
Schematic
Location
Machine
Location
CONN 1
G-9 D
CONN 2
G-9 D
CONN 3
G-8 D
CONN 4
E-8 D
CONN 5
E-8 D
CONN 6
B-7 38
CONN 7
E-7 D
CONN 8
E-7 D
CONN 9
G-7 D
CONN 10
G-6 4
CONN 11
G-6 4
CONN 12
G-5 4
CONN 13
G-6 4
CONN 14
G-6 4
CONN 15
G-6 4
CONN 16
G-6 4
CONN 17
C-6 A
CONN 18
A-6 5
CONN 19
C-5 A
CONN 20
C-5 A
CONN 21
C-5 A
CONN 22
C-5 A
CONN 23
C-4 A
CONN 24
F-5 F
CONN 25
F-5 F
CONN 26
F-5 F
CONN 27
F-5 F
CONN 28
F-5 F
CONN 29
F-4 F
CONN 30
F-4 F
CONN 31
H-3 F
CONN 32
H-3 F
CONN 33
H-3 F
CONN 34
H-3 F
CONN 35
H-3 F
CONN 36
H-2 F
CONN 37
B-3 8
CONN 38
A-3 7
CONN 39
A-3 6
CONN 40
D-2 9
CONN 41
F-2 F
CONN 42
F-2 F
CONN 43
H-2 F
CONN 44
H-2 F
CONN 45
H-2 F
CONN 46
H-9 D
CONN 47
E-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.
Code Description of Problems
1301 Engine 011 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 circuli 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.
4104 Monitor power supply (digital output) over current.
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).
4109 Spare solenoid 1 (digital output) over current.
410A Over-current in digital output (swing brake solenoid).
410b Spare solenoid 2 (digital output) over current.
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.
4205 Spare PWM sensor 1 is shorted to body ground.
4206 Spare PWM sensor 2 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 to low (below 23 volts).
420D Electric power supply is to 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
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
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
41
35
33
34
36
38
7
F
39
40
12
16
17
Machine Harness Connector And Component Locations
E98
05
9
Title Form Number
Alternator: 132-2156 SENR4757
Electric Starting Motor: (6V-5227) SENR4975
Consist: 6V-5538
Engine/Pump Control SENR9291
Starting and Charging: SENR9292
Related Electrical Service Manuals
Resistor, Sender and Solenoid Specifications
Part No. Component Description Resistance (Ohms)¹
3E-1906
Solenoid: A/C Clutch
52.0± 2.6
3E-6332
Solenoid: Valve - Start Aid
6
4I-5394
Sender: Hydraulic Oil Temp
6130 to 7500
102-8017
Resistor: Backup
52.0 ± 2.6
121-1490
Solenoid: Level Finish
Trenching
320 ± 3.2
121-1491
Solenoid: AC1
AC2
Hydraulic Lock
Swing Brake
Travel Speed
32.0 ± 3.2
¹ At room temperature unless otherwise noted.
Part No. Function Actuate Deactuate Contact Position
3E-6449 Coolant Temperature (Start Aid)
38±3°C
(100 ± 5" F)
27° C Mln
(80.6' F)
Normally Closed
3E-6455 Engine Oil Pressure
90 ± 21 kPa
(13 ± 3.0 pSI)
70 ± 21 kPa
(10 ± 30 psi)
A-B Normally Open
A-C Normally Closed
106-0179 Implement Pressure
Travel Pressure
1520± 98 kPa
(224.4± 14.21 psi)
1127 kPa MIN
(1635 psi MIN)
Normally Open
106-0180 Boom Raise Pressure
2646.00± 196.00 kPa
(383.77 ± 28.43 psi)
2156.00± 196.00 kPa
(31270 ± 28.43 psi)
Normally Open
114-5333 Refrigerant Pressure (AC)
275 to 1750 kPa¹
(40 to 255 psi)
--
--
Normally Open²
131-9203 Aux Hydraulic Pressure
3500 kPa MAX
(507.6 psi)
3000± 150 kPa
(435.1 ±21.8 psi)
A-B Normally Open
A-C Normally Closed
Off Machine Switch Specification
Wire
Number
Wire
Color
Description
Wire
Number
Wire
Color
Description
101 RD Bat (+) 546 BU Aux Hyd - Rotate CW
103 RD Doom Lamp 547 OR Aux Hyd - Rotate CCW
105 RD Key Sw 548 GY Aux Hyd - Open
107 RD Eng Shut 549 PK Aux Hyd - Close
109 RD Alt Output (+) Term. 575 YL Wiper - Aux (Park)
111 RD Aux Ckt 576 PK Wiper - Aux (Low)
112 PU Main Power Rly Output 578 BU Washer - Aux
113 OR Opr Man Panel VMIS B+ Switched 586 BR Aux Hyd - Close
114 RD Warning Horn (Forward) A587 YL Power Window Cont To Safety Sol Relay
115 PK Cab/Chassis Lamp A588 GN Safety Sol Relay To Sol
118 GY Washer/Wiper C537 GN A/C Photo Sensor + Sig
120 YL Converter C538 OR A/C Photo Sensor - Sig
124 GN A/C
129 BU Cigar Lighter 607 PK Flood Lamp - Front
135 BU Aux Ckt 615 YL Cab Flood Lamp/Rops
139 OR Aux Ckt 616 BU Bucket Flood Lamp/Boom Flood Lamp
140 BU Lubricator 633 BU Attach Lighting Ckt
145 BU Aux Ckt 638 WH Rotary Beacon
147 PU Flow Cont/Fine Swing Solenoid
149 PU Boom Lamp 763 BU Torque Converter SW
150 RD Hyd Lock SW / Hyd Lock Sol 779 WH Coupler Engage Sol
151 BN Aux Ckt 780 PU Coupler Disengage Sol
152 BU Aux Ckt 786 GN Eng Speed Cont - Hi Press SW
154 RD Aux Ckt 788 YL Eng Speed (+)
168 RD Aux Ckt 791 PK Eng Speed Cont - Lo Sol
172 RD AuxCkt A755 PK Throttle SW #1
176 BU Aux Ckt A756 BU Throttle SW #2
176 YL Aux Ckt A757 GY Throttle SW #3
177 RD Main Brkr A758 BR Throttle SW #4
180 BN Aux Ckt A761 PU Electronic Pump Cont Throggle Ground
185 YL Aux Ckt A762 PU Electronic Pump Cont Eng Speed Ground
189 RD Aux Ckt A768 BU Pump Control Valve #1 (+)
191 WH Aux Ckt A769 GY Pump Control Valve #2 (-)
196 BU Insp Lamp A770 PK Electronic Pump Cont Bypass SW To Resistor
198 PK Aux Ckt A771 PU Float SW
F771 OR Backup SW
200 BK Main Chassis F772 WH Backup SW
210 BK Converter Output (24/12 Volt) F773 OR Governor Accel
235 BK Electronic Pump Ctrl Gnd F774 WH Governor Decel
F846 PU LED Driver 1
306 GN Starter Relay Coil G848 GN LED Driver 2
307 OR Key SW To Neutral Start SW G872 PU Espar Cab Heater to Power Switch
308 YL Main Power Relay Coil 952 OR Hammer SW B
310 PU Start Aid SW To Start Aid Sol 954 GN Hammer SW A
320 OR Horn Relay Coil To SW 955 BU Hammer Sol A
321 BR Backup Alarm Lamp Travel Alarm K904 GN Pump Discharge - Signal
326 RD KeySW "C" Term. K905 RD Pump Discharge - +B
386 PK Air Shutoff Solenoid Enable K906 GN Swing Brake Sol - Signal
K907 BU Swing Brake Sol - +B
403 GN Alternator (R) Term. K909 BU Backup SW - +B
405 GY Opr Man Oil Press. (Low Setting) K911 PK E/P Controller - RS485 (+)
412 BU Opr Man Cool Flow K912 GN E/P Controller - RS485 (-)
430 BU Opr Man Air Filter K915 GN Fine Swing SW - E/P Controller
487 OR Hyd Oil Flow SW K997 BU +V Sensor, EMS-II
Monitoring Circuits
Wire Description
Power Circuits
Accessory Circuits (Continued)
Lighting Circuits
Control Circuits
Ground Circuits
Basic Machine Circuits
491 PK VMIS Hyd Oil Temp Sensor L908 OR Controller RS-232C Tx
492 GY VMIS Coolant Temp Sensor Signal L909 BU Controller RS-232C Rx
495 GN VMIS Fuel Level Signal L968 OR Electronic Pump Control Ps Valve (0)
496 WH Opr Man Panel Hyd Oil Level L969 WH Electronic Pump Control Ps Valve (+)
A424 WH Press. Transducer 1 Signal L970 GY Electronic Pump Cont To SW Common Return
A425 YL Press. Transducer 2 Signal L971 GN Electronic Pump Cont To Travel Pressure SW
C468 BU Engine Oil Level L972 BU Low Idle SW
L973 GN Fine Swing Cont RelayTo Sol Valve
506 PU Washer - Front L974 GN Electronics Pump Ctrl Boom Raise Press SW
508 PU Radio Speaker - Left L975 PK Start Aid Cont Lamp 1 Output
509 WH Radio Speaker - Left (Commom) L977 YL Trenching Sol
511 BR Radio Speaker - Right L978 GY Level Finish Sol
512 GN Radio Speaker - Right (Common) N923 GY Backup Mode Switch 1
519 PK Thermostat To Refrigerant Press. SW N924 WH Backup Mode Switch 2
524 BU Wiper - Left (Low)
Accessory Circuits
¹ A hysteresis band exists: with increasing pressure the closed condition can be maintained up to 2800 kPa (405psi), with decreasing pressure
the closed position can be maintained down to 170 kPa (25psi).
² Contact position at the contacts of the harness connector.
©
2000 Caterpillar
All Rights Reserved
Printed in U.S.A.
SENR1665-02
March 2000
330B Excavator
Electrical System
3YR1-UP
5LR1-UP
4RS1-UP
5LS1-UP
791-PK-18
786-GN-18
8630-BU-18
310-PU-18
K909-BU-18
576-PK-18
575-YL-18
F773-OR-18
F774-WH-18
A770-PK-18
A769-GY-18
A768-BU-18
K906-GN-18
L973-GN-18
578-BU-18
307-OR-18
326-RD
308-YL-18
N923-GY-18
524-BU
615-YL
403-GN-18
638-WH
506-PU
118-GY
103-RD-18
L970-GY-18
K905-RD-14
954-GN-18
235-BK-14
K997-BU-18
L970-GY-18
L971-GN-18
306-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
L977-YL-18
L974-GN-18
L978-GY-18
A771-PU-18
L975-PK-18
L908-OR-18
L909-BU-18
235-BK-18
235-BK-14
L20
954-GN-18
K905-RD-14
A587-YL-18
A587-YL-18
A587-YL-18
A587-YL-18
152-BU-18
779-WH-18
K905-RD-14
111-RD-14
150-RD-18
154-RD-18
189-RD
147-PU-18
115-PK-14
107-RD
168-RD-14
308-YL-18
N924-WH-18
177-RD-14
177-RD-14
779-WH-18
780-PU-18
320-RD-18
A587-YL-18
549-PK-18
548-GY-18
952-OR-18
954-GN-18
200-BK-14
955-BU-18
172-RD-18
F846-PU-18
G848-GN-18
139-OR-18
135-BU
633-BU-18
210-BK
L970-GY-18
519-PK-18
586-BR-18
200-BK
A425-YL-18
A424-WH-18
152-BU-18
198-PK-18
198-PK-18
N923-GY-14
196-BU
151-GN-18
149-PU
140-BU
172-RD-18
512-GN-18
511-BR-18
508-PU-18
509-WH-18
124-GN-18
L33
113-OR-18
185-YL-18
105-RD
129-BU-18
118-GY
403-GN-18
K997-BU-18
140-BU
149-PU
151-GN-18
196-BU
K997-BU-18
191-WH-14
103-RD-18
103-RD
103-RD-18
320-RD-18
177-RD-14
177-RD-14
C537-GN-18
C538-OR-18
120-YL
152-BU
103-RD
K905-RD-14
111-RD-14
150-RD-18
154-RD-18
189-RD
147-PU-18
115-PK-14
519-PK-18
152-BU
152-BU
152-BU
103-RD
114-RD
152-BU
152-BU
120-YL
C538-OR-18
C537-GN-18
152-BU
177-RD-14
177-RD-14
320-RD-18
112-PU-14
112-PU-14
112-PU-14
191-WH-14
112-PU-14
112-PU-14
112-PU-14
196-BU
151-GN-18
168-RD-14
149-PU
140-BU
200-BK
C538-OR-18
C537-GN-18
200-BK-18
508-PU-18
509-WH-18
511-BR-18
512-GN-18
118-GY
129-BU-18
105-RD
ATCH
AM/FM RADIO
S
3
1
185-YL-18
177-RD-14
147-PU-18
113-OR-18
10A
HYD LOCK SW
10A
150-RD-18
150-RD-18
154-RD-18
150-RD-18
151-GN-18
A
B
C
A
J
J
A
L27
8
308-YL-18
308-YL-18
113-OR-18
177-RD-12
168-RD-12
147-PU-18
AUX CKT
113-OR-18
308-YL-18
FINE SWING SOL
147-PU-18
150-RD-18
154-RD-18
151-GN-18
320-RD-18
A
200-BK-18
1
4
3
2
198-PK-18
546-BU-18
198-PK-18
547-OR-18
L33
150-RD-18
547-OR-18
198-PK-18
124-GN-18
124-GN-18
509-WH-18
508-PU-18
511-BR-18
512-GN-18
L14
103-RD
168-RD-14
107-RD
107-RD
546-BU-18
K905-RD-14
519-PK-18
115-PK-14
147-PU-18
189-RD
154-RD-18
150-RD-18
111-RD-14
K905-RD-14
N923-GY-14
198-PK-18
198-PK-18
198-PK-18
198-PK-18
198-PK-18
198-PK-18
152-BU-18
A424-WH-18
A425-YL-18
200-BK
586-BR-18
519-PK-18
L970-GY-18
546-BU-18
547-OR-18
210-BK
633-BU-18
135-BU
139-OR-18
200-BK
G848-GN-18
F846-PU-18
172-RD-18
955-BU-18
954-GN-18
952-OR-18
548-GY-18
549-PK-18
547-OR-18
546-BU-18
A587-YL-18
A587-YL-18
A587-YL-18
A587-YL-18
A587-YL-18
A587-YL-18
A587-YL-18
780-PU-18
779-WH-18
124-GN-14
124-GN-14
N924-WH-18
308-YL-18
L27
198-PK-18
J
A
FUSE BASE
111-4812
J J
112-PU-14
J J J J
SHUTDOWN
5
3
4
6
2
1
7
8
9
10
11
12
LUBRICATOR
SW PANEL
112-PU-14
112-PU-14
10A
E/P CONT
10A
15A
10A
10A
10A
10A 10A
10A
10A
30A
10A
10A
FLOW CONT SOL
113-OR-18
BOOM LAMP
129-BU-18
REFUELING PUMP
KEY SW
DOME LAMP
15A
124-GN-14
BACKUP
FUSE
10A 9W-1442
15A 9W-1441
30A 8T-9636
HORN
10A
111-RD-14
189-RD-14
A/C /HEATER
CIGAR LIGHTER
118-GY
WASHER/WIPER
ATCH AUX CKT
CONVERTER
CAB/CHASSIS LAMP
ATCH AUX CKT
112-PU-14
152-BU
120-YL
15A
10A
10A
10A
15A
10A
10A
AUX CKT
O.W.D.
HYD LOCK SOL
115-PK-14
INSP LAMP
ENG GOV
191-WH-14
112-PU-14
177-RD-12
177-RD-14
114-RD-18
103-RD
107-RD
105-RD
168-RD-12
147-PU-18
149-PU
140-BU
112-PU-14
180-GN
176-YL
185-YL-18
196-BU
150-RD-18
172-RD-18
K905-RD-14
4
6
5
4
3
2
1
8
1
2
3
CONT. O.W.D.
132-5096
A
6
CONSOL SW
586-BR-18
SENSOR 2
A424-WH-18
200-BK
176-BU
SENSOR 1
GND
4
5
2
+ 24V
1
3
A425-YL-18
BUZZER AS
113-4683
A
A
779-WH-18
2
1
2
2
4
5
6
7
1
12
11
10
9
954-GN-18
4
235-BK-14
7
1
2
K997-BU-18
K905-RD-18
235-BK-18
L909-BU-18
L908-OR-18
L975-PK-18
6
3
5
189-RD
154-RD-18
111-RD-14
112-PU-14
172-RD-18
112-PU-14
200-BK-18
177-RD-14
320-OR-18
112-PU-14
151-GN-18
403-GN-18
L969-WH-18
L968-OR-18
K907-BU-18
F772-WH-18
F771-OR-18
K915-GN-18
K911-PK-18
K912-GN-18
A755-PK-18
A756-BU-18
A757-GY-18
A758-BR-18
308-YL-18
L972-BU-18
112-PU-14
150-RD-18
A771-PU-18
L978-GY-18
112-PU-14
185-YL-18
112-PU-14
L974-GN-18
L977-YL-18
788-YL-18
A762-PU-18
763-BU-18
412-BU-18
C468-BU-18
191-WH-14
120-YL
152-BU
118-GY
321-BR-18
124-GN-14
129-BU-18
113-OR-18
140-BU
405-GY-18
149-PU
115-PK-14
168-RD-14
105-RD
107-RD
168-RD-14
105-RD
103-RD
114-RD-18
107-RD
140-BU
196-BU
K905-RD-14
120-YL
124-GN-14
113-OR-18
147-PU-18
191-WH-14
152-BU
118-GY
129-BU-18
149-PU
115-PK-14
103-RD
114-RD-18
185-YL-18
196-BU
150-RD-18
172-RD-18
K905-RD-14
112-PU-14
112-PU-14
112-PU-14
112-PU-14
177-RD-14
177-RD-14
111-RD-14
189-RD-14
112-PU-14
112-PU-14
154-RD-18
151-GN-18
320-OR-18
200-BK-18
118-GY
118-GY
129-BU-18
K912-GN-18
K911-PK-18
K997-BU-18
200-BK-14
A586-OR-18
501-GN-18
590-GY-18
506-PU
C537-GN-18
C538-OR-18
235-BK-14
200-BK-14
512-GN-18
511-BR-18
509-WH-18
508-PU-18
120-YL
135-BU
210-BK
139-OR-18
633-BU-18
G848-GN-18
F846-PU-18
955-BU-18
952-OR-18
961-BR-18
638-WH
492-GY-18
491-PK-18
495-GN-18
430-BU-18
L18
103-RD
496-WH-18
K904-GN-18
A761-PU-18
487-OR-18
306-GN-18
L971-GN-18
403-GN-18
K905-RD-18
615-YL-18
615-YL
524-BU
L970-GY-18
N923-GY-14
N923-GY-14
N923-GY-18
N923-GY-18
N923-GY-14
N923-GY-14
N923-GY-18
103-RD-18
524-BU
524-BU
524-BU
524-BU
615-YL
615-YL-18
615-YL-18
403-GN-18
403-GN-18
403-GN-18
103-RD-18
103-RD-18
200-BK-18
200-BK-18
200-BK
200-BK-18
779-WH-18
779-WH-18
779-WH-18
779-WH-18
A424-WH-18
A425-YL-18
200-BK-18
308-YL-18
A587-YL-18
8630-BU-18
307-OR-18
111-RD-14
306-GN-18
151-GN-18
150-RD-18
A588-GN-18
196-BU
K909-BU-18
115-PK-14
189-RD
114-RD-18
320-OR-18
791-PK-18
786-GN-18
154-RD-18
615-YL
149-PU
A770-PK-18
177-RD-14
112-PU-6
152-BU
172-RD-18
168-RD-14
140-BU
107-RD
487-OR-18
K997-BU-18
147-PU-18
403-GN-18
506-PU
L977-YL-18
L974-GN-18
L978-GY-18
A771-PU-18
519-PK-18
405-GY-18
321-BR-18
C468-BU-18
412-BU-18
763-BU-18
A762-PU-18
788-YL-18
A761-PU-18
K904-GN-18
496-WH-18
430-BU-18
495-GN-18
491-PK-18
492-GY-18
L971-GN-18
779-WH-18
326-RD
578-BU-18
L973-GN-18
K906-GN-18
A768-BU-18
A769-GY-18
F774-WH-18
F773-OR-18
310-PU-18
L975-PK-18
103-RD-18
638-WH
L908-OR-18
L909-BU-18
235-BK-18
177-RD-14
L35
N923-GY-14
L34
N923-GY-14
112-PU-14
112-PU-14
112-PU-14
112-PU-14
112-PU-14
112-PU-14
112-PU-6
200-BK-18
200-BK-18
200-BK-18
308-YL-18
200-BK-18
200-BK-18
200-BK-18
200-BK-18
200-BK-18
200-BK-18
200-BK-18
200-BK-18
200-BK
308-YL-18
A758-BR-18
A757-GY-18
A756-BU-18
A755-PK-18
105-RD
307-OR-18
326-RD
308-YL-18
113-OR-18
791-PK-18
786-GN-18
A586-OR-18
501-GN-18
590-GY-18
F771-OR-18
F774-WH-18
F772-WH-18
F773-OR-18
A769-GY-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
961-BR-18
200-BK-18
124-GN-18
A537-PK-18
L973-GN-18
K915-GN-18
200-BK-18
200-BR-18
310-PU-18
615-YL-18
K907-BU-18
L11
L10
L9
L1
L7
L6
L5
L4
L3
L2
8630-BU-18
586-BR-18
FINE SWING
CONT SW
111-4788
A
H
A
308-YL-18
961-BR-18
H
ATCH AUX HYD
CONT SW
111-4787
ATCH ROTATING
BEACON SW
H
200-BK-18
200-BK-18
8630-BU-18
152-BU-18
615-YL-18
152-BU-18
L14
200-BK-18
200-BK-18
200-BK-18
308-YL-18
200-BK-18
A537-PK-18
L15
L16
615-YL-18
L21
549-PK-18
198-PK-18
548-GY-18
198-PK-18
H
A
780-PU-18
780-PU-18
780-PU-18
3
4
2
1
L972-BU-18
A758-BR-18
A757-GY-18
A756-BU-18
A755-PK-18
308-YL-18
F772-WH-18
F771-OR-18
L968-OR-18
L969-WH-18
K915-GN-18
K907-BU-18
A755-PK-18
A756-BU-18
A757-GY-18
A758-BR-18
L9
L1
L7
L6
L5
L17
A
L19
L21
L12
N923-GY-14
N924-WH-18
191-WH-14
191-WH-14
N924-WH-18
N923-GY-14
200-BK-18
L972-BU-18
198-PK-18
548-GY-18
198-PK-18
549-PK-18
1
2
3
4
ATCH
SEAT WITH
SEAT HEATER
111-6458
12
11
10
9
8
7
1
2
6
4
3
5
H
7
6
5
4
3
2
1
8
ATCH SEAT
HEATER SW
111-4783
615-YL-18
308-YL-18
310-PU-18
308-YL-18
326-RD
307-OR-18
200-BK-18
578-BU-18
615-YL-18
L973-GN-18
615-YL-18
615-YL-18
586-BR-18
200-BK-18
200-BK-18
200-BK-18
615-YL-18
615-YL-18
L973-GN-18
K915-GN-18
200-BK-18
200-BK-18
200-BK-18
615-YL-18
K906-GN-18
615-YL-18
A537-PK-18
124-GN-18
H
ATCH
O.W.D. SW
132-1828
200-BK-18
200-BK-18
615-YL-18
615-YL-18
H H H
200-BK-18
200-BK-18
200-BK-18
615-YL-18
615-YL-18
A768-BU-18
578-BU-18
A769-GY-18
ATCH START
AID SW
111-4784
152-BU-18
152-BU
200-BK-18
200-BK-18
615-YL-18
A770-PK-18
F774-WH-18
F773-OR-18
576-PK-18
575-YL-18
H
ATCH AUX SW ATCH AUX SW
575-YL-18
152-BU-18
200-BK-18
200-BK-18
HH
K907-BU-18
K915-GN-18
L969-WH-18
L968-OR-18
F771-OR-18
F772-WH-18
308-YL-18
576-PK-18
K909-BU-18
310-PU-18
200-BK
590-GY-18
501-GN-18
A586-OR-18
A755-PK-18
A756-BU-18
A757-GY-18
A758-BR-18
L972-BU-18
961-BR-18
615-YL-18
113-OR-18
124-GN-18
8630-BU-18
105-RD
H
185-YL-18
152-BU
308-YL-18
586-BR-18
786-GN-18
791-PK-18
607-PK-18
306-GN-18
322-GY-18
616-BU
386-PK-18
200-BK-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
780-PU-18
1
2
5
3
4
6
2
1
7
8
9
10
11
12
200-BK-18
200-BK-18
326-RD
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
107-RD
C
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
A768-BU-18
WASHER
7T-8890
OR
430-BU-18
412-BU-18
506-PU
412-BU-18
200-BK
321-BR-18
MOTOR
2
1
COOLANT
LEVEL SW
109-9436
412-BU-18
200-BK-18
519-PK-18
513-OR-18
B
519-PK-18
492-GY-18
140-BU
519-PK-18
200-BK
B
ATCH
TRAVEL ALARM
3E-7738
ATCH AUTO
LUBRICATION PUMP
127-5264
405-GY-18
310-PU-18
C468-BU-18
REFRIGERANT
LOW PRESS SW
114-5333
A762-PU-18
321-BR-18
311-WH-18
788-YL-18
430-BU-18
403-GN-18
200-BK-18
311-WH-18
326-RD
200-BK
PK
200-BK-18
495-GN-18
496-WH-18
200-BK
491-PK-18
311-WH-18
A769-GY-18
321-BR-18
109-RD-6
109-RD-2 (NOTE E)
101-RD-6
403-GN-18
304-WH-8
304-WH-8
607-PK-18
322-GY-18
101-RD-2 (NOTE E)
616-BU
A
AA
B
A
306-GN-18
386-PK-18
K997-BU-18
763-BU-18
L977-YL-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
L974-GN-18
C468-BU-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
B
B
B
2
1
ATCH
START AID
SOL
3E-6332
1
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
616-BU
322-GY-18
607-PK-18
7
495-GN-18
1
2
2
1
TRAVEL SPEED
SOL
121-1491
TRENCHING
SOL
121-1490
LEVEL FINISH
SOL
121-1490
PROPORTIONAL
REDUCING
VALVE
111-9916
1
2
3
B B B B
2
8
1
1
2
3
4
5
6
7
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
200-BK-18
200-BK-18
L971-GN-18
200-BK-18
EE
BK-00
(NOTE B)
RD-00
(NOTE B)
(NOTE B)
RD-00
CCBBAA
GGFF
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
4
3
2
1
AUX BACKUP SW
200-BK-18
200-BK-18
C
B
A
L12
191-WH-14
N924-WH-18
200-BK-18
K904-GN-18
K997-BU-18
5
4
3
2
1
200-BK-18
OPERATOR STATION
200-BK
200-BK-18
BK-00
BK-00
513-OR-18
F774-WH-18
A/C CLUTCH
SOL
3E-1906
BU-18
A
B
C
A
519-OR-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
RD-18
BK-18
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
K997-BU-18
K904-GN-18
763-BU-18
304-WH-8
L978-GY-18
L977-YL-18
C
A769-GY-18
B
B
A768-BU-18
1
491-PK-18
496-WH-18
2
405-GY-18
101-RD-6
A762-PU-18
200-BK-18
788-YL-18
519-OR-18
C
311-WH-18
492-GY-18
405-GY-18
386-PK-18
KEY
200-BK-18
200-BK
A761-PU-18
C
MOTOR AS GOV.
132-7778
306-GN-18
616-BU
322-GY-18
607-PK-18
C
6
DECEL
495-GN-18
200-BK
ACCEL
+B
F/B
GND
B
CHASSIS
C
B
YL-18
BR-18
BK-18
+B
GROUND
200-BK-18
A758-BR-18
A757-GY-18
A756-BU-18
105-RD
113-OR-18
791-PK-18
786-GN-18
SENSOR O.W.D.
132-7315
SIGNAL OUT
200-BK-18
SIGNAL IN
A425-YL-18
200-BK-18
SIGNAL
PUMP DISCHARGE
PRESS SENSOR
106-0178
L4
L3
T
ENG COOLANT
TEMP SENDER
128-8945
L2
H
C
E
E
200-BK-18
E
A586-OR-18
E
E
501-GN-18
+
590-GY-18
2
1
T
109-RD-6
403-GN-18
WIPER CONT
127-9838
A755-PK-18
S4
S3
S2
S1
COM
200-BK-18
H
MONITOR
106-0172
SWITCH PANEL
111-4800
STARTER SW
9G-7641
H
-
201-BK-18
SERVICE
METER
6T-7337
THROTTLE
POS. SW
106-0107
201-BK-18
200-BK-18
200-BK-18
200-BK-14
200-BK
2
CAB
200-BK-18
P
NOTE A: NORMALLY OPEN BEFORE REFRIGERANT CHARGE.
UU
2
1
HORN
7T-0969
607-PK-18
200-BK-14
1
R
2
2
1
P
NOTE C: USE WITH ELECTRIC OPENABLE WINDSHIELD.
PP
JJ
NOTE D: NOT NECESSITY FOR ELECTRIC OPENABLE WINDSHIELD.
NN
U
ATCH
BOOM LAMP
153-2521
CHASSIS
LAMP
153-2523
A
WW
T
S
ATCH
REFUELING PUMP
STOP SW (NC)
9X-4184
T
T
XX
YY
ATCH
REFUELING PUMP
POWER RELAY
3T-0376
C
K
K
K
HORN
7T-0970
G
T ATCH
REFUELING PUMP
START SW (NO)
6T-9442
ATCH
REFUELING PUMP
108-9845
ATCH
BOOM LAMP
153-2521
200-BK-18
B
S
HARNESS AS.
B
OFF
LOCPART NO.IDENT
CIRCUIT GROUPING
DESIGNATION
#L
ATCH WIRE, CABLE,
COMPONENT
CIRCUIT NOT CONNECTED
CIRCUIT CONNECTED
BLADE, SPADE, RING,
OR SCREW TERMINAL
INTERNAL ELECTRICAL
CONNECTION TO SURFACE
OF COMPONENT
ELECTRICAL CONNECTION
TO VEHICLE STRUCTURE
ON
CONNECTOR
SYMBOL DESCRIPTION
C
1
D
E
F
H
J
K
M
N
B
ST
WIRE AS.
VV
CABLE AS.
AA
BB
CC
DD
EE
FF
GG
HH
COMPONENTS ARE SHOWN INSTALLED ON A FULLY
OPERABLE MACHINE WITH THE KEY AND ENGINE OFF.
P
ZZ
NOTE B: USE WITH COLD WEATHER.
U
322-GY-18
616-BU
200-BK
322-GY-18
G
L976-GN-18
365-YL-18
325-PK-18
200-BK-18
607-PK-18
200-BK-18
365-YL-18
168-RD-18
ATCH
REFUELING
START RELAY
111-4871
616-BU
200-BK
616-BU
200-BK
200-BK-18
200-BK-18
322-GY-18
322-GY-18
4
L21
5
168-RD-14
RR
GND IN
WASH SW
+ 24V IN
MOT WASHER
WIPER SW
OUTPUTS
INTER SW
WIND SW
GND
LIGHT
RS485-
+B
MAIN
RS485+
+B
L.CHASSIS
L.BOOM
WASH
W.LOW
CIGAR
LIGHTER
9W-0335
W.INT
307-OR-18
326-RD
308-YL-18
308-YL-18
308-YL-18
GND
168-RD-18
L970-GY-18
G
V
616-BU
322-GY-18
200-BK-14
200-BK-18
A424-WH-18
B
1
2
A
200-BK
A425-YL-18
A424-WH-18
LOW PRESSURE
SOL (A1)
121-1491
1
SOL
R1/R2
125-8075
AUX PRESS
SW
131-9203
951-PK-18
NN
HAMMER 2
SOL (ON/OFF)
116-3413
A
2
1
200-BK-18
B
NN
C
A848-PK-18
A847-YL-18
L970-GY-18
C
NN
B
A
1
L970-GY-18
A755-PK-18
N924-WH-18
546-BU-18
547-OR-18
548-GY-18
549-PK-18
A756-PU-18
A757-WH-18
A758-BR-18
JJ
A
2
3
329-YL-18
4
1
JJ
A
A
168-RD-18
L976-GN-18
JJ
329-YL-18
4
K976-OR-18
K975-WH-18
K974-PU-18
DIODE
121-1022
168-RD-18
168-RD-18
200-BK-18
323-WH-14
3
K973-BR-18
3
2
L19
L21
200-BK-14
C
CONN 38
CONN 39
2
L976-GN-18
L976-GN-18
1
JJ
B
A
NN
524-BU
200-BK
5
3
6
1
L976-GN-18
L976-GN-18
365-YL-18
168-RD-14
200-BK-14
168-RD-18
325-PK-18 325-PK-18
4
2
1
2
2
4
200-BK-18
JJ
8
7
6
1
3
5
4
3
2
2
1
JJ
NN
A758-BR-18
A757-WH-18
A756-PU-18
A755-PK-18
N923-GY-14
952-OR-18
F846-PU-18
G848-GN-18
955-BU-18
954-GN-18
K973-BR-18
K974-PU-18
K975-WH-18
K976-OR-18
549-PK-18
548-GY-18
547-OR-18
546-BU-18
N924-WH-18
L970-GY-18
200-BK-14
6
8
5
198-PK-18
A587-YL-18
954-GN-18
955-BU-18
200-BK-18
G848-GN-18
F846-PU-18
952-OR-18
4
607-PK-18
L23
3
7
2
8
7
6
5
4
3
2
1 1
2
3
4
5
8
1
N923-GY-14
7
1
3
5
4
6
2
8
L34
K976-OR-18
K975-WH-18
N924-WH-18
546-BU-18
547-OR-18
548-GY-18
549-PK-18
K974-PU-18
K973-BR-18
954-GN-18
G848-GN-18
F846-PU-18
L34
A755-PK-18
A756-PU-18
A757-WH-18
A758-BR-18
SIS CONNECTOR
3E-5136
7
3
306-GN-18
101-RD-12
4
1
145-BU-12
386-PK-18
15A
40A
5A
15A
143-BR-12
200-BK-14
145-BU-12
405-GY-18
578-BU-18
578-BU-18
405-GY-18
112-PU-14
G872-PU-14
101-RD-14
200-BK-14
START HEATER
ESPAR
111-4871
200-BK
START DISABLE
RELAY
111-4871
SW ON
HEATER
WINDSHILD SW
9G-2795 (NOTE D)
A
B
A588-GN-18
HIGH PRESSURE
SOL (A2)
156-9513
HIGH PRESSURE
SOL (A3)
156-9513
780-PU-18
200-BK-18
575-YL-18
SW OFF
HEATER
INDICATOR
ON HEATER
SW ON/OFF
FUEL HEATER
330-YL-18
5
330-YL-18
INDICATOR
ON FUEL HEATER
WARMING WINDSHIELD
RELAY
125-1302
152-BU-18
168-RD-14
200-BK-14
576-PK-18
FUEL HEATER
BREAKER
3T-2662
WARMING WINDSHIELD
BREAKER
8D-7265
ATCH. PANEL GP
ARCTIC
160-2147 (NOTE E)
L22
L22 L22
365-YL-18
158-BR-14
158-BR-14
PLATFORM
A
SS
8
6
B P
NOTE F: NOT USE WITH FINE SWING CONT. SW.
P
G
10
12
2
9
5
11
4
5
11
12
323-WH
AUX PEDAL
ON/OFF SOL
2
3
PLATFORMCHASSIS
GROUND STRAP
7G-1060
G
3
D
BU
10
2
1
3
D
D
4
D
D
6
9
200-BK
8
7
323-WH
D
323-WH
323-WH
GY
YL
BR
2
1
DD
RD
PK
D
LOWER
WIPER MOTOR
131-0398
+
S
-
MOTOR
E E
OR
BK
PU
GN
A
WH
4
+24 VDC OUT-WATER PUMP
5
D
11
12
10
2
1
3
6
7
8
9
ATCH HEATER GP
136-9001 (NOTE E)
+24 VDC IN-FUEL HEATER
FUEL PUMP
FUEL PUMP
4
FUEL FIRED HEATER-ENABLE
+24 VDC IN-FUEL HEATER
GROUND
AK
AK
AK
AK
1
U U
MM
1
5
6
2
7
8
2
4
5
200-BK-14
A
FUEL HEATER
RELAY
111-4871
OPERATOR STATION
200-BK-18
200-BK-18
780-PU-18
-
304-WH-8
326-RD
L43
L44
+
200-BK
615-YL
103-RD
K905-RD-18
C468-BU-18
322-GY-18
B
200-BK-18
200-BK-18
200-BK-18
200-BK-18
200-BK
200-BK
616-BU
1
B
B
185-YL-18
200-BK-18
185-YL-18
H
K909-BU-18
F773-OR-18
SPEED
CHANGE SW
110-7884
HH
185-YL-18
K906-GN-18
A768-BU-18
A769-GY-18
BACKUP SW
114-0421
L968-OR-18
K909-BU-18
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
524-BU
506-PU
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
200-BK
200-BK-14
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
615-YL
A
L974-GN-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
12
TRAVEL ALARM
ENG OIL PRESS SW
36
SWING BRAKE SOL
23
EPR VALVE (-)
17
21
8
RS485 + (LH JOYSTICK) 7
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
DEGITAL OUT (-)
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
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
OPTION SW (2)
RS232C (TX)
KEY SW (START)
STRAIGHT TRAVEL SW37
4
3
OPTION SENSOR (PWM)
1
16
19
5
OPTION SENSOR (PWM)
OPTION SOL
32
33
DEGITAL OUT (-)
DEGITAL OUT (-)
14
28
34
8
200-BK-14
7
6
5
4
3
8
1
2
A A
A
6
E E E
A A A
S
3
A
200-BK-18
200-BK-18
6
A
J
+ 12V LIGHT
GROUND
103-RD-18
BK
BK
200-BK-18
200-BK-18
103-RD-18
ANTENNA
106-0036
L975-PK-18
1
2
HYD LOCK
SOL
121-1491
A
200-BK-18
616-BU
322-GY-18
200-BK-18
200-BK-18
1
4
3
2
200-BK-18
A/C PHOTO
SENSOR
128-2162
Y/G
Y/W
C537-GN-18
C538-OR-18
129-BU-18
403-GN-18
L34
L35 L35
L34 L34
L35
L35
L34
L34
L35
L34
L35
L35
L38
L42
L35
L34
L35
L34
L46
200-BK-18
200-BK-18
200-BK-18
200-BK
200-BK
A850-WH-18
A849-OR-18
200-BK
200-BK-18
200-BK-18
200-BK-18
200-BK
N923-GY-14
N923-GY
952-OR-18
200-BK-18
200-BK-18
N919-GN-18
N920-BU-18
N924-WH-18
A756-PU-18
N921-YL-18
N922-OR-18
200-BK-18
3
4
5
200-BK-18
200-BK-18
6
7
2
8
A755-PK-18
A757-WH-18
8
1
2
200-BK
7
3
4
5
6
1
8
NN
NN
K976-OR-18
954-GN-18
K975-WH-18
K974-PU-18
K973-BR-18
SPEAKER RH -
SPEAKER RH +
A758-BR-18
N924-WH-18
PROX SW
3T-3132
AC2
(ON/OFF)
121-1491
F/C SOL
(PROP.)
111-9916
955-BU-18
SPEAKER LH -
1
2
2
1
585-YL-18
SPEAKER LH +
NN
NN
MEMORY + 12V
NN
PP
AC1
(ON/OFF)
121-1491
PP
200-BK-18
B+ 12V
1
306-GN-18
C537-GN-18
C538-OR-18
386-PK-18
2
NN
1
200-BK
2
7
8
1
1
2
JJ
JJ
ATCH-FOOT
SWITCH
PEDAL-RH
ATCH-FOOT
SWITCH
PEDAL-LH
2
1
2
A/C UNIT
126-3375
5
3
139-OR-18
6
L973-GN-18
950-BR-18
200-BK-18
PRESSURE SW
106-0179
952-OR-18
1
147-PU-18
200-BK-18
103-RD-18
2
L40
L41
L40
L46
L45
200-BK-18
200-BK-18
N923-GY-14
200-BK
512-GN-18
511-BR-18
509-WH-18
508-PU-18
103-RD-18
L44
L43
L11
L10
135-BU
633-BU-18
210-BK
ROTARY SW
155-2715
BK
BU
GN
BN
A587-YL-18
A
496-WH-18
306-GN-18
A
1
NN
2
L972-BU-18
200-BK-18
549-PK-18
L45
198-PK-18
BK
YL
MULTISWITCH JOSTICK
122-4828
RIGHT SW
548-GY-18
198-PK-18
N923-GY-18
LEFT SW
4
H
ONE TOUCH
LOW IDLE SW
952-OR-18
200-BK
L20
NEUTRAL START
LIMIT SW
111-4799
J
N923-GY
103-RD-18
615-YL
200-BK
200-BK
103-RD-18
200-BK-18
200-BK-18
103-RD-18
547-OR-18
198-PK-18
546-BU-18
320-OR-18
L41
198-PK-18
547-OR-18
198-PK-18
MULTISWITCH JOYSTICK
122-4829
RIGHT SW
546-BU-18
198-PK-18
LEFT SW
615-YL
615-YL
ATCH INDICATOR
143-3421
A
F
5
6
4
2
3
4
3
1
210-BK
210-BK
615-YL-18
615-YL
135-BU
135-BU
1
120-YL
3
N923-GY-14
135-BU
524-BU
210-BK
139-OR-18
S
-
633-BU-18
+
F
2
1
F
MM F
4
2
3
5
1
6
N923-GY-18
G848-GN-18
F846-PU-18
955-BU-18
952-OR-18
RABBIT
2 WAY
1 WAY
PS
961-BR-18
7
8
F
9
12V SOCKET
9R-7941
B
MOTOR
638-WH
A
C
4
7
6
MM
8
5
2
118-GY
DOME LAMP
096-0721
3
615-YL
11
1
CAB
LUNCH BOX LIGHT
ATCH SPEAKER(L)
7Y-5505
ATCH SPEAKER(R)
7Y-5505
6
10
8
12
5
2
4
7
CONVERTER
131-0327
5
4
200-BK-18
952-OR-18
A
952-OR-18
952-OR-18
3
952-OR-18
200-BK
2
2
1
6
L47
952-OR-18
F
F
L35
L34
196-BU
K976-OR-18
K975-WH-18
K974-PU-18
K973-BR-18
N919-GN-18
200-BK
403-GN-18
109-RD-2 (NOTE E)
B
200-BK-6
EE(NOTE B)
AA
F
L34
F
F
A
GND
24V BAT IN MEM
L35
B
BK-18
24V SW. IN
12V MEM OUT
GND
12V SW. OUT
2
1
HH
B
B
B
B
ALTERNATOR
132-2156
ENG OIL
LEVEL SW
111-4759
BK-00
1
2
200-BK-6
200-BK-18
200-BK-14
N920-BU-18
ATCH ROTATING BEACON LAMP
491-PK-18
RD-00
RD-00
101-RD-6
ENG
SHUTDOWN SOL
3E-7985
BAT MTR
200-BK-18
487-OR-18
200-BK-18
1
B
200-BK-18
2
1
638-WH
200-BK
L18
B
F
B
A
633-BU-18
139-OR-18
B
210-BK
S G
B
304-WH-8
120-YL
STARTER
MOTOR
6V-5227
6V-0512 (NOTE B)
135-BU
N921-YL-18
B-
615-YL-18
118-GY
524-BU
F
CHASSIS
N922-OR-18
546-BU-18
ENG SPEED
SENSOR
6V-2455
1
788-YL-18
B+
4
R
ALT
MOTOR
548-GY-18
200-BK-14
3
301-BU-14
301-BU-14
101-RD-6
549-PK-18
HYD OIL
TEMP SENDER
4I-5394
FUEL LEVEL
SENSOR
105-9911
ATCH
REFUELING SW
5C-6108
2
1
HYD OIL
LEVEL SW
111-4760
A762-PU-18
WH-18
T
2
547-OR-18
B
325-PK-18
118-GY
638-WH
952-OR-18
961-BR-18
496-WH-18
200-BK-18
952-OR-18
200-BK-18
491-PK-18
955-BU-18
F846-PU-18
G848-GN-18
N923-GY-18
633-BU-18
139-OR-18
210-BK
524-BU
135-BU
120-YL
495-GN-18
306-GN-18
386-PK-18
103-RD-18
508-PU-18
509-WH-18
511-BR-18
512-GN-18
N923-GY
G848-GN-18
A849-OR-18
A850-WH-18
951-PK-18
950-BR-18
780-PU-18
200-BK-14
779-WH-18
A847-YL-18
A848-PK-18
F846-PU-18
585-YL-18
K905-RD-14
200-BK
2
5
A
22
16
10
4
21
15
9
3
24
20
C538-OR-18
C537-GN-18
118-GY
506-PU
590-GY-18
501-GN-18
A586-OR-18
19
J
6
MEDIUM PRESS SOL R2
18
11
17
23
12
1
7
8
13
14
THROTTLE POS SW
NN
UPPER WIPER MOTOR
131-0399
F
E/P CONTR
M M
200-BK-14
K997-BU-18
K911-PK-18
CAB LAMP
153-2521
E/P CONTR
E/P CONTR
E/P CONTR
THROTTLE POS SW
AUX PILOT MAN AC1
FLOW CONTROL SOL
RH - JOYSTICK
GROUND
AUX PILOT MAN AC2
PROX SW
MEDIUM PRESS SOL R1
AK
LH - JOYSTICK
LH - JOYSTICK
HAMMER 2 SPEED SOL
FLOW CONTROL SOL
323-WH
323-WH
ROCKER SW CSL
RH - JOYSTICK
PRESSURE SW
AUX CKT POWER SUPPLY
THROTTLE POS SW
THROTTLE POS SW
ATCH-AUX/BACKUP
RELAY
145-6907
K912-GN-18
D
MM
AK
ATCH-AUX/HYD
CONTROLLER
122-9897
AK
AK
L908-OR-18
ATCH AUX CKT
ZZ
ZZ
RR
2
1
L909-BU-18
129-BU-18
403-GN-18
615-YL-18
HORN SW
128-2134
306-GN-18
200-BK-18
200-BK-18
200-BK-18
235-BK-18
(NOTE E)
101-RD-14
109-OR-6
112-PU-6
200-BK-14
200-BK-14
176-YL
114-RD-18
322-GY-18
320-OR-18
149-PU
786-GN-18
ATTACHMENT
HEATER FUEL PUMP
136-7707 (NOTE E)
177-RD-6
616-BU
PUMP
200-BK-18
306-GN-18
615-YL
177-RD-8
306-GN-18
386-PK-18
322-GY-18
607-PK-18
306-GN-18
A587-YL-18
A588-GN-18
150-RD-18
151-GN-18
RELAY PANEL
K905-RD-18
308-YL-18
307-OR-18
154-RD-18
200-BK-18
386-PK-18
616-BU
786-GN-18
149-PU
320-OR-18
322-GY-18
615-YL
607-PK-18
791-PK-18
115-PK-14
1
200-BK-18
2
1
200-BK
K909-BU-18
200-BK-18
K997-BU-18 K997-BU-18
111-RD-14
200-BK
615-YL
MONITOR +B OUT
306-GN-18
189-RD
(NOTE E)
L18
L28 L28
1
ATCH
REFUELING
STOP RELAY
111-4871
235-BK-18
L908-OR-18
L909-BU-18
111-RD-14
308-YL-18
325-PK-18
323-WH-14
200-BK-14
307-OR-18
ATCH
BEACON RELAY
A
2
200-BK-18
2
RELAY PANEL
L13
200-BK
YY
196-BU
L4
L12
L5
L8
L2
L3
L38
112-PU-6
L38
101-RD-2 (NOTE E)
101-RD-6
A
109-RD-6
101-RD-2 (NOTE E)
109-RD-2 (NOTE E)
101-RD-2
K911-PK-18
K997-BU-18
103-RD-18
200-BK
140-BU
K912-GN-18
615-YL-18
115-PK-14
500-BR-18
590-GY-18
189-RD
524-BU
111-RD-14
101-RD-2 (NOTE E)
501-GN-18
506-PU
118-GY
K909-BU-18
200-BK-18
A586-OR-18
200-BK-18
154-RD-18
307-OR-18
200-BK-2 (NOTE E)
779-WH-18
A587-YL-18
780-PU-18
109-RD-6
USED FOR ARCTIC PACKAGE
B (NOTE E)
B (NOTE E)
STARTER
MOTOR
6V-5227
6V-0512 (NOTE B)
101-RD-2
791-PK-18
301-BU-14
MOTOR
118-GY
ALT
R
B+
CHASSIS
B-
304-WH-8
G
S
615-YL
MTRBAT
101-RD-2
RD-00
RD-00
200-BK-14
200-BK-18
200-BK-2
BK-00
304-WH-8
ALTERNATOR
132-2156
308-YL-18
154-RD-18
786-GN-18
2
149-PU
320-OR-18
B
189-RD
114-RD-18
109-RD-2 (NOTE E)
308-YL-18
B
HH
200-BK-18
200-BK-18
200-BK-18
200-BK
200-BK-18
AA
308-YL-18
GG
CC
DISCONNECT SW
7N-0718
7N-0719(NOTE B)
DD
EE(NOTE B)
200-BK-18
L38
200-BK-2
109-RD-2
ALT BREAKER
9S-0174
112-PU-6
403-GN-18
OUT 1
OUT 2
+B
IN 2
GND
IN 1
DD
A
D
A
UU
VV
YY
D
B
B
1
WW
VV
UU
XX
A
308-YL-18
6
5
4
3
2
1
BK-00
BACKUP
RESISTOR
102-8017
HYD LOCK
SOL RELAY
111-4871
5
3
4
6
2
1
7
8
9
10
11
12
304-WH-8
200-BK-18
109-OR-6
A587-YL-18
A
ATCH AUX CKT
200-BK-18
A
500-BR-18
149-PU
149-PU-18
307-OR-18
200-BK-18
111-RD-14
177-RD-14
189-RD
111-RD-14
306-GN-18
308-YL-18
200-BK-18
151-GN-18
K909-BU-18
A
TIMER RELAY
111-4870
150-RD-18
115-PK-18
101-RD-6
A588-GN-18
101-RD-6
791-PK-18
607-PK-18
615-YL
196-BU
MAIN RELAY
3T-0376
151-GN-18
150-RD-18
200-BK
B
C
CAB/CHASSIS
LAMP RELAY
111-4871
A588-GN-18
A587-YL-18
K909-BU-18
638-WH
109-OR-2
115-PK-14
386-PK-18
115-PK-14
189-RD
114-RD-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-14
154-RD-18
FOR
INSP LAMP
9R-7941
615-YL
200-BK-18
152-BU
149-PU
114-RD-18
BLOCK AS.
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
118-GY
307-OR-18
154-RD-18
200-BK-18
BK-00
177-RD-14
(NOTE B)
BK-00
320-OR-18
114-RD-18
A587-YL-18
A588-GN-18
200-BK-18
150-RD-18
114-RD-18
151-GN-18
8630-BU-18
2
386-PK-18
1
L975-PK-18
4
3
2
1
2
3
4
308-YL-18
SS
B
196-BU
C
306-GN-18
386-PK-18
E
D
C
L908
1
2
L909
487-OR-18
235
B
495-GN-18
A770-PK-18
A
RELAY PANEL
200-BK-14
200-BK
101-RD-2
200-BK
L975-PK-18
780-PU-18
200-BK-18
780-PU-18
BK-00
L8
A770-PK-18
K909-BU-18
K909-BU-18
K909-BU-18
A770-PK-18
K909-BU-18
A770-PK-18
K909-BU-18
D
D
L3
L2
L8
L8
L47
200-BK-18
200-BK-18
N923-GY-18
168-RD-18
168-RD-18
B
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
AK
200-BK-18
405-GY-18
NOTE E: USE WITH ARCTIC PACKAGE.
KK
150-5027 (NOTE E)
ATTACHMENT-ENG OIL
PRESS SW
3E-6455 (N0TE E)
BK-18
177-RD-14
RD-18
C
177-RD-14
L42
B
177-RD-14
A771-PU-18
177-RD-14
200-BK
AB
AH
AP
AK
(NOTE B)
(NOTE B)
(NOTE B)
(NOTE E)
(NOTE E)
(NOTE E)
(NOTE E)
G-8
B-2
J-5
G-6
J-6
A-2
H-3
H-8
A-2
H-2
G-8
G-8
C-7
G-8
B-4
B-6
F-4
H-3
B-2
G-1
E-7
G-8
F-9
F-9
F-9
H-9
F-9
F-9
F-9
A-9
J-8
J-8
C-3
A-6
E-8
A-3
J-4
H-9
J-3
J-3
J-4
F-8
111-4826
128-8970
160-0973
153-1149
143-9617
116-0098
152-7674
128-8936
116-0096
136-4731
111-4829
111-4830
132-1947
155-3994
130-6568
154-8149
152-8804
153-0286
116-0146
117-7028
116-0091
111-4831
116-0161
116-0080
125-4727
132-1805
116-0162
116-0080
116-0242
7Y-8132
128-8938
128-8937
121-1115
121-1044
132-1946
132-1827
111-4846
7Y-3881
150-1440
150-1439
150-1435
162-8513
177-RD-14
MAIN BREAKER
9S-0174
101-RD-6
60A
RR
WW
200-BK-18
IMPLEMENT
PRESS SW
106-0179
1
2
B
487-OR-18
200-BK-18
L5
A
BU-18
L12
DIODE
121-1022
200-BK-18
B (NOTE E)
308-YL-18
+B
A
112-PU-6
616-BU
304-WH-8
150-3893 (NOTE E)
HYD OIL
FILTER SW
116-3660
150-5026 (NOTE E)
L15
C
L4
118-GY
118-GY
L24
L17
L17
L24
L16
L14
L19
L18 L18
L28 L28
L18
L20
L28
L16
L27
L17
L24 L24
L17
L27
L16
L28
1
235-BK-14
2
PLATFORM
200-BK-14
200-BK
200-BK
200-BK
200-BK
200-BK
200-BK-18
114-RD-18
114-RD-18
200-BK
L37
L36
L32
L30
L29
L31
200-BK
L31
L29
200-BK
ATCH FUEL
HEATER
135-6299 (NOTE E)
101-RD-12
(NOTE E)
L52
L51
L50
L49
L48
L48
L49
L50
L51
L52
L36
L37
L32
L31
L30
L29
L55
KK
(NOTE E)
L54
L54
L55
(NOTE E) KK
L30
L32
176-YL
L36
L37
L36
L32
L24
AK
L23
L15
L27
L26
L24
L30
L25
607-PK-18
168-RD-14
L28
L26
L17
L16
L25L27
L31
L29
L31
L29
L29
L28 L28
L28
235-BK-18
CAB LAMP
153-2521
PROVISION
200-BK-18
200-BK-14
200-BK
1
E
235-BK-14
200-BK-18
200-BK-14
200-BK-14
1
152-BU-18
L22
A588-GN-18
575-YL-18
7
4
576-PK-18
B
6
118-GY
FINE SWING
SOL
116-3526
BOOM RAISE
PRESS SW
106-0180
1
9
2
B
1
2
N
2
1
GY
PU
BR
RED
WHITE
ORANGE
YELLOW
PINK
ABBREV COLOR
BLACK
GRAY
PURPLE
BROWN
B
2
1
SWING
BRAKE SOL
121-1491
200-BK-18
K906-GN-18
BK
PK
YL
OR
WH
RD
GN
BU
GREEN
BLUE
L973-GN-18
147-PU-18
200-BK-18
L974-GN-18
200-BK-18
L971-GN-18
TRAVEL
PRESS SW
106-0179
3
A587-YL-18
L41
L41
1
118-GY
8
524-BU
2
200-BK-14
AK
AH
AB
145-BU-12
5
2
AB
AH
L13
N923-GY-18
AK AK
AK
AK
200-BK-12
124-GN-14
L13
200-BK-18
L13
L18 L18
200-BK-18
G872-PU-14
954-GN-18
177-RD-14
B
E97628
THIS SCHEMATIC IS FOR THE 330B EXCAVATOR.
(116-0145 V 01)
LIGHT IN 24V
LIGHT OUT 12V
UNLESS OTHERWISE SPECIFIED ALL WIRE IS 16 GAUGE.
ENGINE/PUMP
CONN 37
CONN 40
CONN 18
CONN 6
CONN 17
CONN 19 CONN 20 CONN 23CONN 22CONN 21
CONN 8CONN 7CONN 5CONN 4
CONN 1
CONN 46
CONN 2 CONN 3
CONN 9
CONN 12
CONN 10
CONN 11
CONN 16CONN 13
CONN 15
CONN 14
CONN 24 CONN 25 CONN 26 CONN 28
CONN 29 CONN 30
CONN 27
CONN 41
CONN 47
CONN 42
CONN 36
CONN 43 CONN 44 CONN 45
CONN 35CONN 33CONN 32CONN 31 CONN 34
F
E
D
C
B
A
G
J
H
F
E
D
C
B
A
G
J
H
9 8 7 6 5 4 3 2 1
9 8 7 6 5 4 3 2 1
STARTING CIRCUIT.
GAUGE CIRCUIT.
MONITOR CIRCUIT.
WASHER/WIPER CIRCUIT.
HEATER AND AIR CONDITIONER CIRCUIT.
GROUND CIRCUIT.
OPERATOR INTERLOCK CIRCUIT.
PUMP CONTROL CIRCUIT.
START AID CIRCUIT.
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.