345B SERIES II MATERIAL HANDLER MACHINE SYSTEMS ELEC SCHEM AURORA USED IN SERVICE MANUAL RENR4040

©
2001 Caterpillar
All Rights Reserved
Printed in U.S.A.
RENR4019-01
June 2001
345B Series II and W345B Series II
Material Handlers Electrical System
345B II MH:
APB1-UP
W345B II MH:
ANJ1-UP
CDY1-UP
Component Location
Component
Schematic
Location
Machine
Location
Component
Schematic
Location
Machine
Location
Alarm - Travel G-9 1 Sender - Hydraulic Oil Temp A-4 15
Alternator D-8 2 Sensor - Sun Load F-1 E
Assembly - Terminal Block F-8 D Sensor - ATM Pressure B-8 16
Batteries - 12VDC H-8, I-8 3 Sensor - Boost Pressure B-8 17
Breaker - Alternator I-8 D Sensor - Coolant Temperature B-8 18
Breaker - Generator I-8 D Sensor - Engine Speed/Tmg B-8 19
Breaker - Main I-8 D Sensor - Fuel Level A-4 20
Control - Engine A-9, B-9 5 Sensor - Fuel Temperature A-8 21
Control - Engine/Pump F-2 C Sensor - Intake Manifold Air Temperature A-8 17
Control - Group F-2 C Sensor - Oil Pressure B-8 18
Control - Group I-1 B Sensor - Pump Discharge Press B-7 19
Controller - Wiper/Washer E-1 E Solenoid - A/C Clutch D-9 22
Converter - Voltage C-5 A Solenoid - Eng/Pump Control A-6 4
Diode - Main Relay G-7, H-7 D Solenoid - Fan Speed Control A-7 41
Fuses I-4, I-5 B Solenoid - Hydraulic Lock I-1 F
Generator - (ATCH) B-2 F Solenoid - Level Finish A-7 4
Ground - Cab B-5 7 Solenoid - Rotate CW E-7 42
Ground - Cab E-1 E Solenoid - Rotate CCW E-7 42
Ground - Chassis B-3 8 Solenoid - Start Aid (ATCH) I-9 23
Ground - Chassis C-8 9 Solenoid - Swing Brake E-7 14
Ground - Chassis B-7 D Solenoid - Travel Speed A-7 4
Ground - Chassis I-8 D Solenoid - Trenching A-6 4
Ground - Engine Control B-9 5 Solenoids - Injectors 1-6 A-8 24
Ground - Platform H-1 F Switch - Air Cleaner Flow H-9 25
Ground - Platform G-2 F Switch - Aux Hydraulic Pressure H-3 A
Ground - Relay Panel H-8 D Switch - Backup EPR Valve D-5 C
Ground Strap - Chassis to Platform I-6 10 Switch - Backup Governor D-5 C
Horn A-2, B-2 8 Switch - Boom Raise Pressure E-8 14
Lamp - Cab G-1 39,40 Switch - Coolant Level I-9 23
Lamp - Boom (ATCH) A-1, B-1 33,41 Switch - Disconnect I-8 D
Lighter E-1 E Switch - Engine Oil Level D-9 26
Meter - Service F-1 E Switch - Horn I-1 B
Monitor F-1 E Switch - Grapple/Magnet E-2 C
Motor - Lower Wiper H-1 11 Switch - Hyd Tank Press A-4 27
Motor - Starter C-8 9 Switch - Hydraulic Control (ATCH) D-4 C
Motor - Upper Wiper C-5 12 Switch - Hydraulic Oil Filter A-5 15
Motor - Lower Washer I-9 37 Switch - Hydraulic Oil Level A-5 15
Motor - Upper Washer I-9 37 Switch - Implement Pressure E-8 14
Radio - 12VDC C-6 A Switch - Key F-3 C
Relay - Boom Lamp I-7 D Switch - Lower Washer D-3 C
Relay - Cab/Chassis Lamp I-7 D Switch - Lower Wiper D-3 C
Relay - Grapple Open H-5 G Switch - Neutral Start Limit I-1 B
Relay - Grapple Close H-6 G Switch - One Touch Low Idle F-2 C
Relay - Horn I-7 D Switch - Refrigerant Low Press D-9 23
Relay - Hydraulic Lock Solenoid I-7 D Switch - Start Aid (ATCH) D-5 C
Relay - Main G-7 D Switch - Start Aid Coolant Temp D-9 18
Relay - Neutral Start F-7 D Switch - Suction Line Shutoff Limit A-6 15
Relay - Rotate CW H-5 G Switch - Throttle Position E-3 C
Relay - Rotate CCW H-6 G Switch - Travel Pressure E-8 14
Relay - Start F-8 D Switch Panel F-2 C
Relay - Timer E-7, F-7 D Unit - A/C G-5, H-5 29
Resistor - Backup I-8 D Unit - Heater (ATCH) G-5, H-5 29
Machine locations are repeated for components located close together.
A = Located inside of cab. E = Located in monitor area.
B = Located in operator's left consol area. F = Located under platform.
C = Located in operator's right console area. G =Located in riser.
D = Located around relay panel.
Connector Location
Connector Number
Schematic
Location
Machine
Location
CONN 1 A-9 26
CONN 2 B-8 26
CONN 3 C-8 26
CONN 4 C-8 26
CONN 5 C-8 26
CONN 6 C-8 26
CONN 7 F-9 G
CONN 8 F-9 G
CONN 9 F-9 G
CONN 10 G-9 G
CONN 11 G-9 G
CONN 12 F-8 D
CONN 13 G-8 G
CONN 14 G-8 G
CONN 15 G-8 G
CONN 16 ET & ECAP H-8 D
CONN 17 D-7 15
CONN 18 C-6 A
CONN 19 A-6 15
CONN 20 C-5 A
CONN 21 C-5 A
CONN 22 C-4, C-5 A
CONN 23 F-5 F
CONN 24 F-5 F
CONN 25 F-5 F
CONN 26 F-5 F
CONN 27 H-5 F
CONN 28 H-4 F
CONN 29 H-4 F
CONN 30 H-4 F
CONN 31 H-4 F
CONN 32 F-4 F
CONN 33 F-4 F
CONN 34 F-4 F
CONN 35 A-3 8
CONN 36 B-3 8
CONN 37 B-3 8
CONN 38 C-3 A
CONN 39 H-3 F
CONN 40 Factory Adj D-2 A
CONN 41 F-8 G
CONN 42 F-8 G
CONN 43 F-8 G
CONN 44 G-8 G
CONN 45 G-8 G
CONN 46 G-8 G
CONN 47 G-9 G
CONN 48 G-8 G
CONN 49 G-8 G
CONN 50 G-8 G
CONN 51 G-8 G
CONN 52 F-6 F
CONN 53 H-3 F
CONN 54 A-7 41
CONN 55 G-6 G
CONN 56 G-5 G
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.
Wire Description
Wire
Number
Wire Color Description
Wire
Number
Wire Color Description
Power Distribution Circuits Lighting Circuits (cont'd)
101 RD Bat (+) (Not Application Specific) 616 BU Boom Flood Lamp
103 RD Aux Ckt Control Circuits
105 RD Key Start Sw 763 BU Torque Converter Sw
108 BU Atch Fan 786 RD Engine Speed Cont
109 RD Alt Output (+) Term. 788 YL Engine Speed (+)
111 RD Aux Ckt 791 PK Switch Panel / Cab/Chassis Lamp Rly
112 PU Main Power Rly Output A701 GY Injector #1
113 OR Opr Mon Panel B (+) Switched A702 PU Injector #2
114 GN Warning Horn (Forward) A703 BR Injector #3
115 PK Cab/Chassis Lamp A704 GN Injector #4
118 GY Washer/Wiper A705 BU Injector #5
120 YL Radio A706 GY Injector #6
123 WH ECM A746 PK Turbo Outlet Pressure
124 GN A/C A747 GY Atmospheric Pressure
129 BU Cigar Lighter A751 YL After Cooler Temp
133 OR Atch Lamps A755 PK Throttle Sw #1
140 BU Atch Lubricator A756 BU Throttle Sw #2
147 PU Atch Fine Swing A757 GY Throttle Sw #3
149 PU Boom Lamp A758 BR Throttle Sw #4
150 RD Bat (+) A762 PU Elec Pump Cont Eng Speed Ground
151 GN Neut Strt Lmt Sw to Hyd Lock Sol Rly A768 BU Pump Control Valve #1 (+)
152 BU Lower Washer/Wiper A769 GY Pump Control Valve #2 (-)
154 RD Neut Strt Lmt Sw to Neut Start Rly A770 PK Elec Pump Cont Bypass Sw
168 RD Aux Ckt A771 PU Float Sw
176 YL Aux Ckt E793 BU ATA Data Link (-)
177 RD Main Brkr E794 YL ATA Data Link (+)
179 RD Aux Ckt E799 BR PWM #1 And #2 Return
180 GN Aux Ckt F700 BU PWM #1 Out (3.5A)
185 YL Backup EPR Valve Sw F701 BR PWM #2 Out (3.5A)
189 RD Timer Relay F702 GN Throttle (App Specific)
191 WH Atch Hydraulic Control F704 OR RH Turbine Inlet Exh Temp
Ground Circuits F713 OR Left Turbo Inlet Press
200 BK Main Chassis F714 PK Right Turbo Inlet Press
201 BK Operator Monitor Return F717 YL Sw 4
235 BK Electronic Pump Ctrl Gnd F718 BU Sw 5
Basic Machine Circuits J704 WH Hydraulic Lock Solenoid Relay
304 WH Starter Relay No. 1 Output J705 WH Rotate CCW Relay
306 GN Starter Relay Coil To Neut Start SW Or J706 PU Grapple Close
307 OR Key Start SW To Neutral Start SW Or J707 YL Grapple Open
308 YL Main Power Relay Coil J708 BR Rotate Cw Relay
310 PU Start Aid SW To Start Aid Sol J710 WH Aux
311 WH Start Aid Sol To Temp SW J711 GN Aux
320 RD Horn Relay Coil To Sw J712 BU Aux
321 BR Backup Alarm Lamp Travel Alarm J712 YL Aux
322 GY Warning Horn (Forward) J714 BR Aux
386 PK Air Shutoff Solenoid Enable J715 OR Grapple/Magnet Sw
Monitoring Circuits J718 WH Grapple/Magnet Sw
403 GN Alternator (R) Term. J719 BU Grapple/Magnet Sw
412 BU Operator Monitor Cool Flow J720 YL Grapple/Magnet Sw
430 BU Operator Monitor Air Filter J721 PU Grapple/Magnet Sw
439 YL Lamp Indicator J722 BR Grapple/Magnet Sw
491 PK Hydraulic Oil Temp Sensor 892 BR CAT Data Link (-)
492 GY Coolant Sensor 893 GN CAT Data Link (+)
495 GN Fuel Level 961 GN Atch Hyd Cont Sw
496 WH Operator Monitor Panel Hyd Oil Level 993 BR Analog Sensor Common
499 GY Operator Monitor Implement Oil Filter 994 GY Oil Pressure (Filtered)
A499 BU Operator Monitor Hydraulic Oil Press 995 BU Coolant Temperature
C468 BU Engine oil Level 996 GN Engine Speed/Timing Sensor Power
E455 BR Hydraulic Oil Filter 997 OR Analog Sensor Power (+5V)
F400 GY Low Oil Pressure 998 BR Digital Sensor Return
Accessory Circuits 999 WH Primary Camshaft Speed/Timing
501 GN Wiper - Front (Low) C912 GN Throttle Position
506 PU Washer - Front C967 BU Inlet Air Temperature
508 PU Radio Speaker - Left K904 GN Pump Discharge - Signal
509 WH Radio Speaker - Left (Common) K905 RD Pump Discharge - +B
511 BR Radio Speaker - Right K906 GN Swing Brake Sol - Signal
512 GN Radio Speaker - Right (Common) K907 BU Swing Brake Sol - +B
513 OR Refrig Low Press Sw / A/C clutch Sol K909 BU Backup SW - +B
519 PK A/C Unit/ Refrig Low Press Sw K911 PK E/P Controller - RS485 (+)
546 BU Aux Hyd - Rotate CW K912 GN E/P Controller - RS485 (-)
547 OR Aux Hyd - Rotate CCW K915 GN Fine Swing Sw - E/P Controller
548 GY Aux Hyd - Open K997 BU (+) V Sensor
549 PK Aux Hyd - Close L908 OR Controller RS-232C TX
576 PK Wiper - Aux L909 BU Controller RS-232C RX
578 BU Washer - Aux L968 OR Electronic Pump Control Ps Valve (-)
590 GY Wiper Sw To Intermittent Module L969 WH Electronic Pump Control Ps Valve (+)
592 BU DC/DC Converter Power Output L970 GY Elec Pump Cont To Sw Common Ret
A513 RD DC/DC Converter Memory Output L971 GN Elec Pump Cont To Travel Press Sw
A571 PU Aux Ckt 1 L972 BU Low Idle SW
A572 PK Aux Ckt 2 L973 GN Fine Swing Cont Relay To Sol Valve
A579 OR Wiper Motor + L974 GN Elec Pump Ctrl Boom Raise Press SW
A586 OR Wiper SW To Wiper Cont L977 YL Trenching Sol
A588 GN Safety Sol Relay To Sol L978 GY Level Finish Sol
C537 GN A/C Photo Sensor + Sig L983 WH Injector Common 1 & 2
C538 OR A/C Photo Sensor - Sig L984 OR Injector Common 3 & 4
Lighting Circuits L985 YL Injector Common 5 & 6
607 PK Flood Lamps - Front T920 YL Digital Sensr 5A
615 YL Cab Flood Lamp/Rops
Failure Mode Identifiers (FMI)¹
FMI No. Failure Description
0 Data valid but above normal operational range.
1 Data valid but below normal operational range.
2 Data erratic, intermittent, or incorrect.
3 Voltage above normal or shorted high.
4 Voltage below normal or shorted low.
5 Current below normal or open circuit.
6 Current above normal or grounded circuit.
7 Mechanical system not responding properly.
8 Abnormal frequency, pulse width, or period.
9 Abnormal update.
10 Abnormal rate of change.
11 Failure mode not identifiable.
12 Bad device or component.
13 Out of calibration.
14 Parameter failures.
15 Parameter failures.
16 Parameter not available.
17 Module not responding.
18 Sensor supply fault.
19 Condition not met.
20 Parameter failures.
¹The FMI is a diagnostic code that indicates what type of failure has occurred.
Related Electrical Service Manuals
Title Form Number
Alternator: 3E-7577 RENR1252
Electric Starting Motor: 6V-5539
Opt. Service Replace: 6V-0890 SENR3860
Consist: 6V-5540 SENR3536
Consist: 6V-5582 SENR4975
Consist: 106-8554 SENR3581
Engine Control RENR1235
Engine/Pump Control RENR3760
Starting and Charging SENR1936
Component Identifiers (CID¹) for
Engine Control (MID² No. 036) And
Engine/Pump Control (MID² No. 105)
CID Component
0001 Cylinder 1
0002 Cylinder 2
0003 Cylinder 3
0004 Cylinder 4
0005 Cylinder 5
0006 Cylinder 6
0091 Throttle Signal Abnormal
0096 Fuel Level Sensor
0100 Oil Pressure Signal
0110 Coolant Temperature Signal
0167 Alternator Charging Sensor
0168 Electrical System Voltage
0172 Inlet Air Temperature Signal
0174 Fuel Temperature Signal
0190 Engine RPM Signal
0253 Personality Mode
0261 Timing Calibration
0262 Analog Sensor Supply
0267 Shutdown Input Signal
0268 Programmable Parameters
0273 Boost Pressure Signal
0274 Atmospheric Pressure Signal
0374 Swing Brake Solenoid
0376 Travel Alarm
0286 Oil Lamp
0581 Proportional Reducing Valve
0582 Air Filter/Engine Oil Pressure
0583 Boom Raise Solenoid
0586 Invalid Engine Speed
0587 Calibration Data Error/Governor Actuator Signal
0588 Monitor Communications
0597 PWM Sensor
0598 Travel Speed Solenoid
0600 Hydraulic Oil Temperature Signal
0688 VHP Solenoid
0763 Controller Communications
¹ The CID is a diagnostic code that indicates which component is faulty.
² The MID is a diagnostic code that indicates which electronic control module
diagnosed the fault.
Code Description of Problems
b101 Cylinder 1 open circuit.
b102 Cylinder 1 short.
b103 Cylinder 2 open circuit.
b104 Cylinder 2 short.
b105 Cylinder 3 open circuit.
b106 Cylinder 3 short.
b107 Cylinder 4 open circuit.
b108 Cylinder 4 short.
b109 Cylinder 5 open circuit.
b10A Cylinder 5 short.
b10b Cylinder 6 open circuit.
b10C Cylinder 6 short.
b10d Throttle switch inputs are incorrect.
b10E Oil pressure open/short to + battery.
b10F Oil pressure short to ground.
b110 Oil pressure calibration required.
b111 Coolant temperature open/short to + battery.
b112 Coolant temperature short to ground.
b113 Battery voltage above normal.
b114 Battery voltage below normal.
b115 Loss of engine rpm signal.
b116 Analog sensor supply short to + battery.
b117 Analog sensor supply short to ground.
b118 Digital sensor supply short to + battery.
b119 Digital sensor supply short to ground.
b11A Shutdown inputs are incorrect.
b11b Turbo out pressure open/short to + battery.
b11C Turbo out pressure short to ground.
b11d Turbo out pressure calibration required.
b11E Atmospheric pressure open/short to + battery.
b11F Atmospheric pressure short to ground.
b120 Atmospheric pressure calibration.
b121 Check programmable parameters.
b122 Timing calibration required.
b123 Hydraulic oil temperature open/short to + battery.
b124 Hydraulic oil temperature signal short to ground.
b200 ADEM unknown eror.
Off Machine Switch Specification
Part No. Function Actuate Deactuate Contact Position
3E-6449 Coolant Temperature (Start Aid) 38 ± 3° C 27° C Min. Normally Closed
(100 ± 5° F) (80.6° F)
106-0179 Implement Pressure 1520 ± 98 kPa 1127 kPa MIN Normally Open
Travel Pressure (224.4 ± 14.21 psi) (163.5 psi MIN)
106-0180 Boom Raise Pressure 2646.00 ± 196.00 kPa 2156.00 ± 196.00 kPa Normally Open
(383.77 ± 28.43 psi) (312.70 ± 28.43 psi)
106-0181 Aux Hydraulic Pressure 490 ± 49 kPa MAX 290 kPa MIN Normally Open
(71 ± 7 psi MAX) (42 psi MIN)
114-5333 Refrigerant Pressure (A\C) 275 to 1750 kPa¹ -- Normally Open²
(40 to 255 psi) --
148-8893 Hydraulic Tank Pressure 50 ± 14 kPa 24 kPa MIN Normally Closed
(7.25 ± 2 psi) (3.5 psi MIN)
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.
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.
A20d ADEM communication disconnect.
Engine/Pump Control Real Time Error Codes
Resistor, Sender and Solenoid Specifications
Part No. Component Description Resistance (Ohms)¹
3E-6332 Solenoid: Start Aid 6.0
3E-9205 Solenoid: Grapple 24.9 ± 0.4
4I-5394 Sender: Hydraulic Oil Temp 6130 to 7500
102-8017 Resistor: Backup 52.0 ± 2.6
107-7056 Solenoid: Atch Fine Swing 34.0 ± 0.5
111-9916 Solenoid: Engine Pump Control 11.7 ± 1.2
121-1490 Solenoid: Level Finish 32.0 ± 3.2
Trenching
121-1491 Solenoid: Hydraulic Lock 32.0 ± 3.2
Swing Brake
Travel Speed
¹ At room temperature.
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.
18
13
2
35
41
21
16
5
9
26
31
4
19
34
41
18
24
17
22
25
37
3
23
36
44
27
15
1
14
28
D
7
29
10
38
42
8
20
6
30
B
F
A
C
E
G
39
12
11
40
43
33
2
13
5
26
19
9
31
4
34
35
16
21
41
17
24
22
23
27
25
28
15
36
14
37
44
3
1
42
29
D
10
38
20
8
B
C
6
F
E
11
30
G
A
43
33
7
12
40
39
Machine Harness Connector And Component Locations
6
5
4
3
11
2
3
4
5
6
1
2
3
4
5
1
22
1
10
9
8
7
6
5
4
3
2
1
12
11
10
9
8
6
5
4
3
2
1
12
11
6
147-PU-18
K904-GN-18
430-BU-18
K906-GN-187
1
2
A588-GN-18
151-GN-18
308-YL-18
307-OR-18
791-PK-18
615-YL
149-PU
A770-PK-18
K909-BU-18
200-BK
L973-GN-18
177-RD-14
2
1
189-RD
154-RD-18
111-RD-14
150-RD-18
A771-PU-18
L974-GN-18
L978-GY-18
L977-YL-18
AK
AH
AK
1
2
4
3
J707-YL-18
J706-PU-18
J708-BR-18
J705-WH-18
A
B
C
AA
AK
A
AK D
10
9
8
11
7
1
2
12
3
6
5
4
AK
AK
A AK B
AK
AK
12
11
10
9
8
7
1
2
6
4
3
5
B
AK
2
1
3
6
4
5
AK
D
A
5
4
6
3
1
2
5
3
4
6
2
1
7
8
9
10
11
12
4
5
6
3
12
2
1
7
11
8
9
10
L970-GY-18
113-OR-18
147-PU-18
151-GN-18
151-GN-18
P
AK
J714-BR
L45
AK
A
AK
J712-BU
J712-YL
J711-GN
763-BU-18
K997-BU-18
615-YL
D
786-GN-18
J710-WH
115-PK-14
177-RD-14
320-OR-18
AK
133-0R-14
A
J704-WH-18
114-RD
5
4
3
2
1
1
2
3
4
5
6
7
8
9
10
11
12
519-PK-18
492-GY-18
C468-BU-18
A762-PU-18
788-YL-18
403-GN-18
495-GN-18
496-WH-18
491-PK-18
A769-GY-18
1
2
3
4
5
2
1
12
11
10
9
8
7
6
5
4
3
2
1
1
2
ROTATE SOL
127-7487
ROTATE
CCW
CLOSE
OPEN
AH
310-PU-18
123-WH-14
A
ROTATE
CW
J706-PU-18
F400-GY-18
200-BK-18
J707-YL-18
AK
200-BK-18
GRAPPLE SOL
3E-9205
3
AK
B
4
AK
B
2
AK
412-BU-18
C912-GN-18
F717-YL-18
1
F718-BU-18
1
2
3
4
5
6
7
8
9
10
11
12
998-BR-18
893-GN-18
892-BR-18
A499-BU-18
140-BU
L971-GN-18
499-GY-18
A768-BU-18
6
321-BR-18
200-BK
AK
AK
BAKA
200-BK-18
J707-YL-18
200-BK-18
J706-PU-18
L55
L57
L56
J705-WH-18
200-BK-18
J708-BR-18
200-BK-18
1
2
1
2
200-BK-18
J708-BR-18
200-BK-18
J705-WH-18
AH
AH
L58
200-BK-18
200-BK-18
200-BK-18
L57
200-BK-18
A571-PU-18
A572-PK-18
6
1
2
3
4
5
6
7
8
9
10
11
12
AKA
200-BK
K909-BU-18
A
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
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
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
492-GY-18
491-PK-18
495-GN-18
430-BU-18
496-WH-18
K904-GN-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
K909-BU-18
310-PU-18
A588-GN-18
A588-GN-18
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
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
K907-BU-18
403-GN-18
K904-GN-18
496-WH-18
430-BU-18
495-GN-18
491-PK-18
492-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
112-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
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
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
RISER
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
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
J705-WH-18
J706-PU-18
J707-YL-18
J708-BR-18
L64
L64
L64
L65
548-GY-18
549-PK-18
L66
AT
200-BK-18
200-BK-18
546-BU-18
CHASSIS
200-BK-18
L972-BU-18
L67
GRAPPLE CLOSE
OR
MAGNET LIFT
ONE TOUCH
LOW IDLE SW
H
H
BU
BK
WH
H
103-RD-18
H
YL
GN
CONTROL GP
164-9499
ROTATE CW
105-RD
J704-WH-18
BR
J704-WH-18
RD
548-GY-18
549-PK-18
549-PK-18
GY
SPARE
J704-WH-18
548-GY-18
H
149-PU
191-WH-14
547-OR-18
118-GY
124-GN-14
120-YL
BK
BK
304-WH-8
304-WH-8
101-RD-4
101-RD-4
403-GN
321-BR-18
109-RD-4
109-RD-4 109-RD-4
403-GN 403-GN
200-BK-4 200-BK-4
A
3
1
7
12
8
9
2
9
1
11
1
5
6
5
3
10
11
7
200-BK-18
147-PU-18
200-BK-14
892-BR-18
893-GN-18
123-WH-18
8
F400-GY-18
C468-BU-18
2
1
4
3
5
6
A
J
4
F718-BU-18
F717-YL-18
C468-BU-18
123-WH-14
C912-GN-18
F400-GY-18
200-BK-14
E794-YL-18
E793-BU-18
311-WH-18
A751-YL A751-YL
C967-BU
C967-BU
995-BU
995-BU
994-GY
994-GY
997-OR 997-OR
997-OR
997-OR
997-OR
997-OR
997-OR
993-BR 993-BR
993-BR
993-BR
993-BR
993-BR
993-BR
A747-GY
A747-GY
A746-PK
A746-PK
999-WH
999-WH
998-BR
998-BR
996-GN
996-GN WH
BK
BK
BK
OR
OR
OR
OR
OR
OR
GN
GN
GN
YL
200-BK-18
YL
YL
WH
WH
WH
BK
OR
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
200-BK-18
8
9
4
J
C468-BU-18
200-BK-18
A
AA
J704-WH-18
TRAVEL ALARM
3E-7738
A701-GY
E794-YL-18
2
L62
2
B
COOLANT
LEVEL SW
096-0744
1
2
5
A706-GY
MOTOR
A706-GY
A701-GY
UPPER WASHER
7T-8890
LOWER WASHER
7T-8890
BATTERY
3T-5760
POS NEGNEGPOS
ATCH
BATTERY
3T-5760
(NOTE C)
A702-PU
320-OR-18
A702-PU
A703-BR
12
A703-BR
A704-GN
8
A704-GN
11
9
A705-BU
7
A705-BU
1
998-BR-18
E793-BU-18
L977-YL-18
L978-GY-18
L978-GY-18
763-BU-18
L977-YL-18
151-GN-18
11
12
7
200-BK-18
200-BK-18
200-BK-18
1
2
200-BK
3
4
5
6
10
9
A770-PK-18
8
7
4
3
2
1
5
6
311-WH-18
151-GN-18
6
A762-PU-18
788-YL-18
200-BK-18
311-WH-18
10
892-BR-18
4
3
1
AU
MAGNET - GRAPPLE
GRAPPLE/MAGNET SW
146-0238
200-BK-18
547-OR-18
A762-PU-18
893-GN-18
C912-GN-18
788-YL-18
151-GN-18
F718-BU-18
200-BK-18
123-WH-14
549-PK-18
L970-GY-18
180-GN
549-PK-18
547-OR-18
J720-YL-18
J719-BU-18
J721-PU-18
J718-WH-18
J715-OR
J722-BR-18
200-BK-18
K909-BU-18
892-BR-18
893-GN-18
998-BR-18
180-GN
L970-GY-18
AU
J720-YL-18
J719-BU-18
J721-PU-18
J718-WH-18
J715-OR
J722-BR-18
200-BK-18
L63
L63
200-BK-18
308-YL-18
200-BK-18
L62
ATCH GENERATOR
150-7978
L67
B
C
A
+B
GND
200-BK-18
GEN SOL
DROP
200-BK-18
200-BK-18
LIFT
J722-BR-18
J719-BU-18
AT
308-YL-18
J718-WH-18
151-GN-10
200-BK-10
POS NEG NEGPOS
K997-BU-18
PUMP DISCHARGE
PRESS SENSOR
106-0178
SIGNAL
GROUNDBK-18
BR-18
YL-18
B
C
B
200-BK-18
AG
AF
8
7
6
5
4
3
2
BUS
BAR
C468-BU-18
177-RD-4
112-PU-4
A
M
M
N (NOTE D)
F
1
BB
200-BK-14
F717-YL-18
BB
2
12
1
ENG/PUMP CONT
SOL
111-9916
LEVEL FINISH
SOL
121-1490
200-BK-14
TRENCHING SOL
121-1490
TRAVEL SPEED
SOL
121-1491
1
2
200-BK-14
FAN SPEED
CONTROL SOL
403-GN
2
C
C B
B
1
C B
WH-18
A762-PU-18
SS
1
1
4
2
B
A/C CLUTCH SOL
(NOTE E)
ALT
R
B+
788-YL-18
ENG SPEED
PICKUP
6V-2455
ATCH
START AID
COOLANT TEMP SW
3E-6449
E
C
304-WH-8
C
1
2
386-PK-18
2
616-BU
1
ENG OIL
LEVEL SW
111-4759
101-RD-4
DISCONNECT SW.
7N-0719
ALTERNATOR
3E-7577
A762-PU-18
ALT BREAKER
9S-4693
788-YL-18
C
311-WH-18
C
C
C
1
2
BK-18
C
2
1
T
YY
UU
VV
109-RD-4
BACKUP
RESISTOR
102-8017
ECM GND STRAP
ENG OIL PRESS
HYD LOCK SOL RELAY
111-4871
GND
USER DEFN SHUTDOWN
506-PU-18
34
35
36
CHASSIS
L42
L41
20
22
23
25
+5V
SENSOR COMMON
FUEL TEMP
L29
L30
INTAKE MANF AIR TEMP
MAIN RELAY
165-4026
CAB/CHASSIS LAMP RELAY
111-4871
COOLANT TEMP
OIL PRESSURE
578-BU-18
ATM PRESSURE
BOOST PRESSURE
80A
ENG SP/TMG
200-BK-18
ENG SP/TMG COMMON
200-BK-18
+V ENG SP/TMG
MOTOR
A
SENSOR
FUEL TEMP
102-2240
HORN RELAY
111-4871
BOOM LAMP RELAY
111-4871
A
SENSOR
INTAKE MANF
AIR TEMP
107-8618
SENSOR
COOLANT TEMP
102-2240
SENSOR
OIL PRESSURE
161-9930
B
SENSOR
ATM PRESSURE
161-9925
SENSOR
BOOST PRESSURE
161-9927
CHASSIS
L30
SENSOR
SPEED/TIMING
129-6628
L28
DIODE
121-1022
L28
L29
ENG SP/TMG
ENG SP/TMG COMMON
+V ENG SP/TMG
L30
L29
L41
L42
L42
L41
BOOST PRESSURE
ATM PRESSURE
OIL PRESSURE
COOLANT TEMP
INTAKE MANF AIR TEMP
+5V
SENSOR COMMON
SENSOR COMMON
ZZ
+5V
+5V
SENSOR COMMON
SENSOR COMMON
+5V
+5V
SENSOR COMMON
200-BK-18
306-GN-18
FUEL TEMP
SENSOR COMMON
177-RD-8
+5V
C
B
A
200-BK-18
A
B
C
386-PK-18
C
616-BU
B
A
B
C
A
A
B
C
306-GN-18
C
304-WH-8
DECEL
ACCEL
L969-WH-18
L968-OR-18
L973-GN-18
L972-BU-18
L973-GN-18
200-BK-18
L971-GN-18
L977-YL-18
L974-GN-18
L978-GY-18
ENG/PUMP CONT
177-7644
AG
2
L971-GN-18
L977-YL-18
L974-GN-18
L978-GY-18
L969-WH-18
L968-OR-18
L972-BU-18
L983-WH
L984-OR
495-GN-18
2
306-GN-18
L985-YL
E799-BR
F700-BU
615-YL-18
3
F701-BR
AD
4
1
NOTE E : REM'D WITH ATCH HEATER OPTION.
AW
SPARE
SPARE
SPARE
SPARE
SPARE
SPARE
SOLENOID COMMON
FAN CONT SOL
T920-YL
F714-PK
1
F704-OR
F702-GN
AF
F701-BR
T920-YL
F714-PK
F704-OR
F702-GN
F713-0R
E799-BR
F700-BU
AX
F713-OR
E799-BR
F700-BU
L984-OR
L983-WH
INJECTOR
161-1785
SOL 4
INJECTOR
161-1785
SOL 3
INJECTOR
161-1785
SOL 2
SS
177-RD-14
177-RD-14
AG
INJECTOR 1
INJECTOR 2
INJECTOR 3
AF
147-PU-18
200-BK-18
INJECTOR 4
INJECTOR 5
L985-YL
L985-YL
L984-OR
L983-WH
200-BK-18
200-BK-18
INJECTOR
161-1785
SOL 6
1
A
200-BK-18
ENGINE
B
C
B
26
27
28
30
B
2
1
29
1
177-RD-14
1
4
3
2
177-RD-14
177-RD-14
177-RD-14
37
2
23
20
177-RD-14
8
306-GN-18
15
9
3
30
36
MOTOR
31
H
177-RD-14
200-BK-18
L28
L28
308-YL-18
ZZ
K909-BU-18
307-OR-18
200-BK-18
177-RD-14
3
1
4
2
1
3
4
2
+B
SIGNAL
32
CHASSIS
STARTER
MOTOR
6V-5539
33
113-OR-18
113-OR-18
SIGNAL
304-WH-8
G S
MTR BAT
SIGNAL
GROUND
200-BK-18
BK
YL
101-RD-4
RD-00
HYD OIL
FILTER SW
143-8037
RD-00
B
2
200-BK-18
RD-00
RD-00
1
177-RD-14
ATCH
SUCTION LINE
SHUTOFF LIMIT SW
3E-5181
B
HYD OIL
FILTER SW
143-8037
GROUND
SIGNAL
+B
200-BK-18
E455-BR-18
177-RD-14
BB
B
GROUND STRAP
128-8886
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
YY
HYD OIL
TEMP SENDER
4I-5394
FUEL LEVEL
SENSOR
105-9911
4
1 2
3
1
2
1
HYD TANK
PRESS SW
148-8893
2
2
HYD OIL
LEVEL SW
111-4760
T
1
B
B
200-BK-18
386-PK-18
386-PK-18
200-BK-18
496-WH-18
AA
EE(NOTE C)
307-OR-18
VVAD
AD
L62
UU
109-RD-4
111-RD-14
101-RD-4
147-PU-18
177-RD-4
MAIN BREAKER
9S-4693
118-GY
124-GN-14
200-BK-18
12
4
10
2
6
112-PU-14
200-BK-14
200-BK-14
1
2
K912-GN-18
K911-PK-18
2
1
INJECTOR COM 5&6
403-GN-18
185-YL-18
INJECTOR COM 1&2
200-BK-14
615-YL-18
K911-PK-18
K912-GN-18
149-PU
200-BK-14
A586-OR-18
INJECTOR COM 3&4
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
519-PK-18
513-OR-18
519-PK-18
OR
PK
REFRIGERANT
LOW PRESS SW
114-5333 (NOTE A)
(NOTE E)
200-BK-14
892-BR-18
103-RD-18
512-GN-18
511-BR-18
509-WH-18
508-PU-18
615-YL
893-GN-18
615-YL
INJECTOR 6
506-PU-18
INJECTOR
161-1785
SOL 5
112-PU-14
112-PU-14
180-GN
189-RD-14
5
17
27
6
12
590-GY-18
501-GN-18
18
A586-OR-18
22
28
34
SENSOR COM
ENG CONT
115-3055
1
2
2
1
103-RD-18
8
103-RD-18
508-PU-18
509-WH-18
A
511-BR-18
512-GN-18
118-GY
39
40
10
103-RD-18
11
21
8
140-BU
4
105-RD
E794-YL-18
103-RD-18
NN
29
E793-BU-18
308-YL-18
123-WH-18
892-BR-18
499-GY-18
496-WH-18
A499-BU-18
113-OR-18
893-GN-18
L969-WH-18
L968-OR-18
998-BR-18
K915-GN-18
K907-BU-18
F718-BU-18
200-BK-18
308-YL-18
147-PU-18
200-BK-18
3
115-PK-14
37
F717-YL-18
519-PK-18
24
6
15
CAT DATA LINK (-)
CAT DATA LINK (+)
THROTTLE
+B
C912-GN-18
F400-GY-18
123-WH
C
C
112-PU-4
C B
E794-YL-18
E793-BU-18
893-GN-18
892-BR-18
101-RD-4
120-YL
191-WH-14
38
19
18
17
16
14
13
12
7
2
19
26
5
9
32
7
10A
10A
15A
10A
10A
10A
A A
15A
7
8
1
6
5
4
3
2
PLATFORM
CHASSIS
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
10A
AV
151-GN-10
10A
10A
10A
10A
10A
10A
10A
10A
10A
YL
15A
10A
15A
GN
E/P CONT
HYD LOCK SOL
AU
10A
200-BK-18
200-BK-18
200-BK-18
304-WH-8
13
200-BK-18
AUX CKT
40
ATCH LUBRICATOR
39
38
33
6
8
1
7
4
5
3
2
112-PU-10
JJJ
J
J
J
FUSE BASE
111-4812
506-PU-18
F718-BU-18
F717-YL-18
998-BR-18
F718-BU-18
F717-YL-18
998-BR-18
439-YL-18
L58
AT
151-GN-18
133-OR-14
L975-PK-18
25
112-PU-4
200-BK-18
200-BK-18
133-OR-14
A499-BU-18
F400-GY-18
892-BR-18
893-GN-18
C912-GN-18
998-BR-18
F717-YL-18
200-BK-14
499-GY-18
200-BK-18
C
B
A
403-GN-18
P
152-BU
L52
118-GY
21
AS
152-BU
A499-BU-18
200-BK-18
200-BK-18200-BK-18
L52
200-BK-18
16
14
2
200-BK-18 200-BK-18L52
24
177-RD-8
MACHINE SHOWN IN THE GRAPPLE MODE.
31
152-BU
439-YL-18
L972-BU-18
615-YL
A755-PK-18
L968-OR-18
763-BU-18
11
A756-BU-18
A771-PU-18
L969-WH-18
L971-GN-18
A757-GY-18
L970-GY-18
788-YL-18
A762-PU-18
430-BU-18
NOTE C : USE WITH COLD WEATHER.
INJECTOR
161-1785
SOL 1
321-BR-18
F400-GY-18
492-GY-18
491-PK-18
495-GN-18
A758-BR-18
496-WH-18
308-YL-18
L977-YL-18
235-BK-18
892-BR-18
893-GN-18
10
4
K997-BU-18
3
235-BK-18
C468-BU-18
K907-BU-18
ATA DATA LINK (-)
K915-GN-18
K911-PK-18
ATA DATA LINK (+)
K912-GN-18
1
L909-BU-18
L908-OR-18
B
K904-GN-18
K997-BU-18
C
L54
L54
235-BK-18
L974-GN-18
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
L978-GY-18
200-BK-18
114-RD
114-RD
114-RD
C912-GN-18
412-BU-18
K997-BU-18
546-BU-18
J704-WH-18
547-OR-18
K905-RD-18
K997-BU-18
L64
AS
K905-RD-18
MONITOR +B OUT
FACTORY
ADJ CONN
THROTTLE DIAL S1
THROTTLE DIAL S2
THROTTLE DIAL S3
THROTTLE DIAL S4
ECM THRT
AS
152-BU
EPR VALVE (+)
AS
AS
L65
180-GN
J715-OR
J705-WH-18
J706-PU-18
GOV ACTR (B)
GOV ACTR FDBK
COOLANT LEVEL SW
TRAVEL SPEED SOL
ENG SPEED SENSOR (-)
ENG SPEED SENSOR (+)
TRENCHING SOL
152-BU
80A
548-GY-18
J720-YL-18
J715-OR J715-OR
2
1
IMPLEMENT SW
ENG OIL LEVEL SW
4
3
FUEL LEVEL SENSOR
FRONT PUMP PRESS SENSOR
J706-PU-18
HYD OIL LEVEL SW
K905-RD-18
AIR CLEANER SENSOR
HYD OIL TEMP SENSOR
RS485 - (VALVE CONT)
RS485 + (VALVE CONT)
RS232C (GND)
RS232C (RX)
COOLANT SENSOR
9
20
10
28
152-BU
31
26
J715-OR
200-BK-18
200-BK-18
546-BU-18
3
5
13
30
29
35
40
2
6
39
6
A
4
6
512-GN-18
511-BR-18
509-WH-18
508-PU-18
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
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
RS232C (RX)
TRAVEL SW
HYD OIL FILTER INDICATOR
DIGTAL OUT (-)
18
RS485 - (RADIO CONT)
CAT DATA LINK (+)19
+B
+B
AIR 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
CAT DATA LINK (-)
26
CAB
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
OPTION SW37
4
3
OPTION SENSOR (PWM)
1
16
19
5
OPTION SENSOR (PWM)
32
33
DIGITAL OUT (-)
DIGITAL OUT (-)
14
11
34
JOY STICK +B OUT
L1
A
123-WH-14
133-OR-14
123-WH-14
179-RD
ATCH FINE SWING
AUX CKT
179-RD
DOME LAMP
156-9426
2
3
4
5
6
1
8
7
L62
L63
L63
180-GN
4
5
12
3
2
J704-WH-18
L60
L63
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
126-3376
177-RD-8
L7
PLATFORM
1
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
L15
BB
115-PK-14
189-RD
154-RD-18
111-RD-14
150-RD-18
AK
BB
C538-OR-18
L55
C537-GN-18
AH
L15
L50
L45
RELAY PANEL
115-PK-14
114-RD-18
114-RD-18
L15
L48
L48
L47
200-BK-18
150-RD-18
189-RD
154-RD-18
111-RD-14
150-RD-18
1
115-PK-14
115-PK-14
L62
10
150-RD-18
114-RD
154-RD-18
189-RD
111-RD-14
K909-BU-18
133-OR-14
150-RD-18
133-OR-14
176-YL
K909-BU-18
786-GN-18
150-RD-18
177-RD-14
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
AUX CKT
HYD LOCK SW
123-WH-14
ECM
386-PK-18
200-BK-18
129-BU
403-GN-18
615-YL-18
103-RD-18
C538-OR-18
K997-BU-18
12
WW
306-GN-18
200-BK-18
200-BK-18
177-RD-14
200-BK-18
321-BR-18
200-BK-18
430-BU-18
412-BU-18
310-PU-18
311-WH-18
123-WH-18
430-BU-18
200-BK-18
200-BK-18
412-BU-18
111-RD-14
189-RD
154-RD-18
154-RD-18
189-RD
177-RD-14
111-RD-14
RELAY PANEL
E793-BU-18
E794-YL-18
893-GN-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
892-BR-18
200-BK-18
200-BK-18
200-BK-18
200-BK-18
L58
COMPONENTS ARE SHOWN INSTALLED ON A FULLY
OPERABLE MACHINE WITH THE KEY AND ENGINE OFF.
THIS SCHEMATIC IS FOR THE 345B SERIES 11 MATERIAL
200-BK-18
HH
GG
FF
EE
DD
CC
BB
AA
CABLE AS.
WIRE AS.
L974-GN-18
200-BK-18
200-BK-18
200-BK-18
200-BK-14
A586-OR-18
A579-OR
J704-WH-18
L970-GY-18
546-BU-18
548-GY-18
200-BK-14
K
J
H
F
E
D
C
B
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
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
1
200-BK-18
A513-RD-18
615-YL
CONVERTER
134-1346 (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
491-PK-18
GND
306-GN-18
386-PK-18
L977-YL-18
763-BU-18
OUT
L978-GY-18
IN
MEM
A768-BU-18
A769-GY-18
K904-GN-18
K997-BU-18
IGN
105-RD
439-YL-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
113-OR-18
A586-OR-18
501-GN-18
590-GY-18
2
L52
AS
788-YL-18
200-BK-18
A762-PU-18
C468-BU-18
200-BK-18
304-WH-8
J707-YL-18
J721-PU-18
322-GY
RELAY PANEL
K909-BU-18
607-PK
311-WH-18
P
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
ROTATE CCW
RELAY
111-4871
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
123-WH-18
J705-WH-18
E793-BU-18
L969-WH-18
E794-YL-18
893-GN-18
J708-BR-18
200-BK-18
A770-PK-18
L968-OR-18
200-BK-18
J721-PU-18
L8
L52
L970-GY-18
12 VDC RADIO
3E-7140
(NOTE F)
NOTE F : HORIZONTAL MTG LOCATION FOR CASSETTE
L8
L8
L8
L18
L20
306-GN-18
200-BK-18
200-BK-18
200-BK-18
616-BU
547-OR-18
304-WH-8
K905-RD-14
150-RD-18
176-YL
150-RD-18
150-RD-18
150-RD-18
154-RD-18
L40
L17
200-BK-18
200-BK-18
L15
L17
L38
L37
L17
615-YL-18
615-YL-18
200-BK-18
L8
A
B
C
115-PK-14
K905-RD-14
150-RD-18
108-BU
154-RD-18
L970-GY-18
K905-RD-14
A
L973-GN-18
L15
L17
ANTENNA
CABLE
8R-6111
L40
L39
L39
L8
L38
L37
VV
147-PU-18
615-YL-18
615-YL-18
L37
L38
578-BU-18
177-RD-14
L973-GN-18
80A
322-GY
L39
200-BK-18
115-PK-14
200-BK-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
XX
WW
12
1
9
8
2
6
11
8
7
K905-RD-14
10
AU
AT
11
L60
3
4
180-GN
L60
L61
168-RD
J718-WH-18
J719-BU-18
J722-BR-18
J715-OR
J720-YL-18
9
J721-PU-18
TIMER RELAY
111-4870
7
6
180-GN
547-OR-18
L970-GY-18
XX
GND
180-GN
CONV (OUT)
K905-RD-14
5
615-YL-18
NEUTRAL
START RELAY
111-4871
START RELAY
125-1302
15A
200-BK-18
200-BK-18
200-BK-18
XX
200-BK-18
200-BK-18
185-YL-18
K909-BU-18
L22
L21
L18
200-BK-18
L34
L8
L19
L3
L34
L4
L25
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
308-YL-18
L19
L3
L25
L4
L20
A513-RD-18
511-BR-18
L31
L4
L25
L3
L19
L20
512-GN-18
L20
L25
L3
L4
L4
L3
L2
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
615-YL-18
A769-GY-18
892-BR-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
129-BU
547-OR-18
549-PK-18
109-RD-4
129-BU
SWITCH PANEL
113-OR-18
AB
403-GN
WW
310-PU-18
615-YL-18
615-YL-18
109-RD-4
200-BK-18
308-YL-18
H
ATCH START
AID SW
111-4784
546-BU-18
114-RD
185-YL-18
112-PU-14
L970-GY-18
L5
151-GN-18
L20
L3
L19
L21
L20
LOWER
WIPER SW
111-4785
LOWER
WASHER SW
111-4786
H
L11
ATCH FINE
SWING CONT SW
111-4788
115-PK-14
308-YL-18
HH
123-WH-18
BACKUP
EPR VALVE SW
114-0421
H H
BACKUP
GOV SW
110-7884
E793-BU-18
H
200-BK-18
200-BK-14
200-BK-18
200-BK-18
1
3
2
4
200-BK
615-YL
200-BK
200-BK
200-BK-14
CC
308-YL-18
2
1
B
123-WH-14
519-PK-18
ATCH
FINE SWING
SOL
107-7056
BOOM RAISE
PRESS SW
106-0180
1
2
B
2
1
109-RD-4
2
J720-YL-18
548-GY-18
AS
AT AK
GRAPPLE CLOSE
RELAY
111-4871
GRAPPLE OPEN
RELAY
111-4871
ROTATE CW
RELAY
111-4871
RH SPKR (-)
RH SPKR (+)
LH SPKR (-)
A
LH SPKR (+)
6
5
3
4
2
1
8
200-BK-18
200-BK-18
7
200-BK-18
L61
L8
E794-YL-18
152-BU
546-BU-18
200-BK-18
J715-OR
J715-OR
1
B
2
1
C
SWING
BRAKE SOL
121-1491
IMPLEMENT
PRESS SW
106-0179
TRAVEL
PRESS SW
106-0179
L47
L47
L48
A
B
B
AX
B
DB
322-GY
L51
L45
607-PK
L49
L51
L49
L50
L51
513-OR-18
L44
L42
L41
L29
L30
L44
L42
L41
L29
L30
L30
L29
L41
GG
L6
A588-GN-18
AV
961-GN-18
F
108-BU
120-YL
-
+
-
+
512-GN-18
511-BR-18
509-WH-18
508-PU-18
893-GN-18
892-BR-18
AW
ET CONN AND ECAP CONN
4
616-BU
200-BK
3
A499-BU-18
1
2
2
103-RD-18
118-GY
A579-OR
F
615-YL
615-YL
200-BK-14
L42
893-GN-18
519-PK-18
386-PK-18
306-GN-18
491-PK-18
499-GY-18
496-WH-18
A499-BU-18
113-OR-18
113-OR-18
1
180-GN
200-BK-18
200-BK-18
386-PK-18
WH-18
WH-18
WH-18
WH-18
306-GN-18
B
F
491-PK-18
E455-BR-18
200-BK-18
499-GY-18
A499-BU-18
L44
A571-PU
3
C912-GN-18
499-GY-18
892-BR-18
H
4
A572-PK
F400-GY-18
UPPER WIPER
MOTOR
147-7982
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
M
A572-PK
A571-PU
H
180-GN
961-GN-18
961-GN-18
549-PK-18
200-BK-14
AE
4
NOTE H : USE WITH CTWT REMOVAL
200-BK-18
L60
546-BU-18
J704-WH-18
548-GY-18
200-BK
200-BK-18
L64
A
101-RD-4
308-Yl-18
GND
L10
200-BK-18
200-BK-18
J720-YL-18
J721-PU-18
546-BU-18
548-GY-18
615-YL
101-RD-4
LAMP
126-7487
L970-GY-18
A579-OR
118-GY
200-BK-18
547-OR-18
546-BU-18
J704-WH-18
548-GY-18
L60
546-BU-18
1
3
2
546-BU-18
J704-WH-18
547-OR-18
GROUND STRAP
8X-5802
AW
J
J
BU
GY
WH
BR
ROTATE
CCW
GRAPPLE OPEN
OR
MAGNET DROP
AV
SPARE
BK
RD
547-OR-18
J704-WH-18
J704-WH-18
CONTROL GP
164-9499
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
J
123-WH-18
200-BK-18
893-GN-18
892-BR-18
E793-BU-18
E794-YL-18
F
307-OR-18
A757-GY-18
615-YL-18
A756-BU-18
+B
200-BK-18
J
L67
151-GN-10
576-PK
200-BK-10
200-BK-10
615-YL
120-YL
118-GY
B+
P
A513-RD-18
T
A755-PK-18
151-GN-10
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
151-GN-10
A771-PU-18
L45
152-BU
506-PU-18
151-GN-10
AX
L49
L44
GEN BREAKER
6N-9349
ATCH HYD CTL
J
A
MOTOR
N
L
200-BK
549-PK-18
3
105-RD
A586-OR-18
961-BR-18
J704-WH-18
L970-GY-18
200-BK-14
C537-GN-18
HYD OIL FILTER SW
113-OR-18
H
L7
549-PK-18
A513-RD-18
4
ANTENNA CABLE
134-4430
501-GN-18
BR
GY
BK
592-BU-18
200-BK-18
L24
12 VDC RADIO
103-8525
REMOVAL TOOL
7Y-5493
179-RD
322-GY
168-RD
L62
L61
150-RD-18
K912-GN-18
A
B
C
D
E
F
G
H
J
616-BU
A
C538-OR-18
201-BK-18
200-BK-18
C
B
A
OR
GN
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
112-PU-10
151-GN-10
112-PU-4112-PU-4
L56
J704-WH-18
5
191-WH-14
A513-RD-18
592-BU-18
177-RD-14
+B
COMP
GND
SUN+
SUN-
5
320-OR-18
CAB
C
2
154-RD-18
189-RD
L22
RH SPKR (+)
LH SPKR (-)
L17
L15
K905-RD-14
LH SPKR (+)
L22
111-RD-14
150-RD-18
F718-BU-18
200-BK
616-BU
322-GY
151-GN-18
308-YL-18
ATCH
HEATER UNIT
128-9726
152-BU
519-PK-18
L24
615-YL
114-RD
2
200-BK-18
11
548-GY-18
200-BK-18
L970-GY-18
L970-GY-18
LAMP
126-7487
200-BK
615-YL
CONV (MEM)
308-YL-18
200-BK-14
200-BK-18
200-BK
200-BK-18
9
CAB
129-BU
OPERATOR STATION
OPTION SW
108-BU
1
NOTE G : NOT USED WITH FINE SWING CONTROL
114-RD
140-BU
322-GY
7
200-BK-18
12
10
6
113-OR-18
113-OR-18
129-BU
607-PK
3
200-BK-18
103-RD-18
118-GY
A579-OR
A579-OR
108-BU
6
123-WH-14
200-BK
176-YL
607-PK
150-RD-18
607-PK
154-RD-18
200-BK
A588-GN-18
L7
A
A
152-BU
C
ATCH FAN
AE
6
L8
8
B
200-BK-14
AC
108-BU
K911-PK-18
590-GY-18
1
L6
308-YL-18
403-GN-18
A579-OR
C538-OR-18
C537-GN-18
200-BK-14
201-BK-18
200-BK-18
A
B
3
L10
1
4
607-PK
322-GY
322-GY
2
B
200-BK-14
J704-WH-18
322-GY
615-YL
AG
L66
AT
961-BR-18
308-YL-18
200-BK-18
113-OR-18
791-PK-18
439-YL-18
A586-OR-18
501-GN-18
590-GY-18
1
J
L15
1
2
L60
L65
151-GN-10
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
K
6
A
154-RD-18
CONV (OUT)
200-BK
K
576-PK
CONV (MEM)
J704-WH-18
B
114-RD
AK
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
133-OR-14
L21
508-PU-18
L20
L5
L11
L12
H
L7
L6
L6
E
CAB
ATCH
HYD CONT SW
111-4787
J
PLATFORM
120-YL
E
E
+
7
549-PK-18
548-GY-18
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
F718-BU-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
133-OR-14
AC
K997-BU-18
499-GY-18
L21
L19
L3
200-BK
L21
L19
L3
L18
L3
L18
AC
200-BK
J704-WH-18
L13
L13
L12
L11
L13
L12
L11
L9
E
K997-BU-18
L7
F717-YL-18
998-BR-18
HYD TK IND439-YL-18
L14
786-GN-18
E
L7
L6
L7
L1
AC
AE
NOTE D : USE WITH FALLING OBJECT GUARD.
B
2
L1
K905-RD-18
F
WIRES 892-BR & 893-GN TO BE TWISTED AROUND
EACH OTHER AT LEAST 1 TURN PER 25 mm.
ATCH
BOOM LAMP
153-2521
L20
322-GY
CHASSIS
OPERATOR STATION
S4
S3
S2
S1
COM
306-GN-18
AB
108-BU
3
322-GY
A
607-PK
HORN
7T-0970
M
N (NOTE D)
M
200-BK
K
607-PK
WIRES E793-BU & E794-YL TO BE TWISTED AROUND
EACH OTHER AT LEAST 1 TURN PER 25 mm.
200-BK
4
200-BK
616-BU
200-BK
616-BU
H
200-BK
MONITOR
151-9385
200-BK
SWITCH PANEL
128-8909
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
TT
I-8
A-7
A-9
F-8
F-8
G-7
C-7 (N0TE H)
D-3
F-6
E-7
G-5
F-9
D-7
A-9
H-8
H-8
A-8
I-8
I-8
I-8
A-8
B-2
H-3
D-3
G-1
E-1
F-8
A-9
A-3
G-7
F-8
F-8
C-2
B-2
G-1
I-8
I-8
G-1
A-2
A-3
A-6
D-4(NOTE G)
167-3479
132-1845
170-6985
145-0176
150-6967
150-6966
167-3477
128-8912
145-9145
145-9144
132-1857
166-8037
152-3776
152-3789
128-8886
116-0242
116-0080
128-8898
132-1805
125-4727
116-0080
128-8884
125-4848
141-9160
141-9161
128-7337
128-7336
141-2135
143-3676
176-1397
176-3962
111-4829
128-8938
141-8659
145-8937
130-2211
145-8936
145-8980
129-8144
125-4868
143-5375
121-1044
116-0237
+1
-
MOTOR
SERVICE
METER
6T-7337
CHASSIS
LAMP
153-2523
THROTTLE
POS SW
106-0107
ATCH
BOOM LAMP
153-2521
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
HANDLER HYD EXCAVATOR (177-3189)
UNLESS OTHERWISE SPECIFIED ALL WIRE IS 16 GAUGE.
TO MACHINE STRUCTURE
CONN 1
CONN 54
CONN 2
CONN 3
CONN 4
CONN 5
CONN 6
CONN 17
CONN 7
CONN 8 CONN 9
CONN 41
CONN 42
CONN 43
CONN 44
CONN 10
CONN 11
CONN 47
CONN 48
CONN 46
CONN 45
CONN 49
CONN 50
CONN 51
CONN 13
CONN 14
CONN 15
CONN 12
CONN 16
CONN 19
CONN 18
CONN 20
CONN 21
CONN 22
CONN 52
CONN 23
CONN 24
CONN 25
CONN 26
CONN 32 CONN 33
CONN 34
CONN 27 CONN 28 CONN 29
CONN 30
CONN 31
CONN 39
CONN 53
CONN 55
CONN 56
CONN 35
CONN 36
CONN 37
CONN 40
CONN 38
E98898
H
G
I
H
G
I
E
D
C
B
A
F
9 8 7
9 8 7
6 5 4
6 5 4
3 2 1
F
E
D
3 2 1
C
B
A
STARTING CIRCUIT.
GAUGE CIRCUIT.
OPERATOR MONITORING CIRCUIT.
WASHER/WIPER CIRCUIT.
HEATER AND AIR CONDITIONER CIRCUIT.
GROUND CIRCUIT.
ENGINE PUMP CONTROL CIRCUIT.
START AID CIRCUIT.
ENGINE CONTROL 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.