325c sistemas electricos

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©2001 Caterpillar All Rights Reserved Printed in U.S.A. SENR8964-01 February 2001 325B L Excavator Electrical System 2JR1-UP Component Location Component Schematic Location Machine Location Component Schematic Location Machine Location Actuator - Engine Governor A-9 1 Resistor - Timer Relay E-7 D Air Inlet Heater C-8 2 Sender - Hydraulic Oil Temperature A-5 12 Alarm - Travel G-9 3 Sensor - Air Inlet Heater Coolant Temp. C-9 2 Alternator B-8 4 Sensor - Coolant Temperature C-8 2 Assembly - Terminal Block F-8 D Sensor - Fuel Level A-5 13 Batteries - 12VDC I-8,H-8 5 Sensor - Pump Discharge Pressure B-8 14 Breaker - Alternator I-8 D Sensor - Sun Load F-1 E Breaker - Main I-8 D Solenoid - A/C Clutch C-9 15 Control - Engine/Pump F-2 C Solenoid - Engine/Pump Control A-7 16 Controller - Wiper/Washer E-1 A Solenoid - Engine Shutdown B-9 17 Converter - Voltage C-5 A Solenoid - Fine Swing E-7 18 Diode G-7 D Solenoid - Hydraulic Lock I-1 A Diode - Main Relay G-7 D Solenoid - Level Finish A-7 16 Fuses I-4,5,6 B Solenoid - Start Aid H-9 19 Ground - Cab B-5 6 Solenoid - Swing Brake E-7 18 Ground - Cab E-1 E Solenoid - Travel Speed A-7 16 Ground - Chassis A-3 7 Solenoid - Trenching A-7 16 Ground - Chassis A-9 8 Switch - Air Cleaner Flow H-9 20 Ground - Chassis I-8 D Switch - Aux Hydraulic Pressure H-3 B Ground - Platform G-2 B Switch - Backup EPR Valve E-5 C Ground - Platform H-1 9 Switch - Backup Governor D-5 C Ground - Relay Panel G-7 D Switch - Boom Raise Pressure D-8 18 Ground Strap - Chassis to Disconnect Sw. I-8 D Switch - Coolant Level H-9 19 Ground Strap - Chassis to Platform I-6 10 Switch - Disconnect I-8 D Horn A-2 7 Switch - Engine Oil Level A-8 1 Lighter E-1 E Switch - Engine Oil Pressure B-9 15 Meter - Service F-1 E Switch - Fine Swing Control D-4 C Monitor F-1 E Switch - Horn I-1 B Motor - Lower Washer I-9 D Switch - Hydraulic Oil Filter A-5 12 Motor - Lower Wiper H-1 9 Switch - Hydraulic Oil Level A-5 12 Motor - Starter A-9 8 Switch - Implement Pressure D-8 18 Motor - Upper Washer I-9 D Switch - Key F-3 C Motor - Upper Wiper C-5 6 Switch - Lower Washer D-4 C Pickup - Engine Speed B-9 11 Switch - Lower Wiper D-3 C Radio - 12VDC C-8,I-3 A Switch - Neutral Start Limit I-1 B Relay - Boom Lamp I-7 D Switch - One Touch Low Idle F-2 C Relay - Cab/Chassis Lamp I-7 D Switch - Refrigerant Low Pressure C-9 15 Relay - Heater F-7 D Switch - Start Aid D-5 C Relay - Horn I-7 D Switch - Start Aid Coolant Temperature B-9 4 Relay -Hydraulic Lock Solenoid I-7 D Switch - Suction Line Shutoff Limit A-6 12 Relay - Main G-7 D Switch - Throttle Position E-3 C Relay - Neutral Start F-7 D Switch - Travel Pressure D-8 18 Relay - Start F-8 D Switch Panel F-2 C Relay - Timer E-7 D Unit - A/C, Heater G-5 21 Resistor - Backup I-8 D Unit - Air Inlet Heater Control I-7 D Machine locations are repeated for components located close together. A = Located inside of cab. B = Located inside of left console. C = Located inside of right console. D = Located around relay panel. E = Located inside of dash. Related Electrical Service Manuals Form Number Alternator: (9W-3043) SENR4252 Electric Starting Motor: (6V-5821) SENR3581 (104-7040) Consist: 6V-5720 SENR3581 Consist: 106-8557 SENR3859 Engine/Pump Control: RENR1998 Starting and Charging: SENR9292 Title Resistor, Sender and Solenoid Specifications Part No. Component Description Resistance (Ohms)¹ 3E-6332 Solenoid: Start Aid 6.0 20824-25451 @ 0 °C (32 °F) 6134-7496 @ 25 °C (77 °F) 3989-4875 @ 35 °C (95 °F) 4I-5394 Sender: Hydraulic Oil Temperature 2224-2718 @ 50 °C (122 °F) 973-1189 @ 75 °C (167 °F) 475-522 @ 100 °C (212 °F) 221-269 @ 125 °C (257 °F) 7Y-8242 Resistor: Timer Relay 47.0 ± 4.7 8C-3663 Solenoid: Engine Shutdown Start (Latch) Coil - 1.55 ± 0.15 Stop (Unlatch) Coil - 10.3 ± 1.03 102-8016 Resistor: Backup 47.0 ± 2.35 111-9916 Solenoid: Engine/Pump Control 11.7 ± 1.2 121-1490 Solenoid: Level Finish Trenching 32.0 ± 3.2 121-1491 Solenoid: Hydraulic Lock Swing Brake Travel Speed 32.0 ± 3.2 134-3998 Solenoid: A/C Clutch 17.6 ± 0.6 ¹ At room temperature unless otherwise noted. Connector Location Connector Number Schematic Location Machine Location CONN 1 A-9 1 CONN 2 F-9 D CONN 3 F-9 D CONN 4 G-9 D CONN 5 G-9 D CONN 6 G-8 D CONN 7 G-8 D CONN 8 G-8 D CONN 9 F-8 D CONN 10 C-6 A CONN 11 C-5 A CONN 12 C-5 A CONN 13 C-4 A CONN 14 F-5 C CONN 15 F-5 C CONN 16 F-5 C CONN 17 F-5 C CONN 18 F-4 C CONN 19 F-4 C CONN 20 F-4 C CONN 21 F-4 C CONN 22 H-5 B CONN 23 H-5 B CONN 24 H-4 B CONN 25 H-4 B CONN 26 H-4 B CONN 27 H-4 B CONN 28 H-3 B CONN 29 H-3 B CONN 30 C-3 A CONN 31 B-3 7 CONN 32 A-3 13 CONN 33 B-2 7 CONN 34 D-2 C 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. Off Machine Switch Specification Part No. Function Actuate Deactuate Contact Position 27 °C (80.6 °C) 70 ± 21 kPa A-B, Normally Open (10 ± 3.0psi) A-C, Normally Closed Implement Pressure 1225.0 ± 98.0 kPa 882.0 kPa MIN Travel Pressure (177.67 ± 14.21 psi) (127.92 psi MIN) 2646 ± 196 kPa 2156 ± 196 kPa 1-2 Normally Open (384 ± 28 psi) (313.00 ± 28.00 psi) 1-3 Normally Closed 490.00 ± 49.00 kPa 290.00 kPa MIN (71.07 ± 7.11 psi) (42.06 psi MIN) 109-9330 Air Cleaner 635 ± 58 mm H2O - Normally Open 114-5333 Refrigerant Low Pressure 275 to 1750 kPa¹ (39.9 to 253.8 psi) - - Normally Open² Hydraulic Pressure Normally Open 106-0179 Normally Open 106-0180 Boom Raise Pressure ¹ A hysteresis band exists: with increasing pressure the closed condition can be maintained up to 2800 kpa (405 psi), with decreasing pressure the closed condition can be maintained down to 170 kpa (25psi). ² Contact position at the contacts of the harness connector. 3E-6449 Start Aid Coolant Temperature 38 ±3°C (100.4 ± 37.4°F) Normally Closed 3E-6455 Engine Oil Pressure 90 ± 21 kPa (13 ± 3.0 psi) 106-0181 Wire Description Wire Number Wire Color Description Wire Number Wire Color Description Power Circuits Accessory Circuits (Continued) 101 RD Battery (+) 512 GN Radio Speaker - Right (Common) 103 RD Aux. Ckt. 513 OR A/C Compressor/Refrigerant Pressure Sw. 105 RD Key Sw. 519 PK Thermostat to Refrigerant Pressure Sw. 107 RD Engine Shutdown 546 BU Aux. Hydraulic - Rotate CW 108 BU Aux. Ckt. 547 OR Aux. Hydraulic - Rotate CCW 109 RD Alt Output (+) Term. 548 GY Aux. Hydraulic - Open 111 RD Aux. Ckt. 549 PK Aux. Hydraulic - Close 112 PU Main Power Relay Output 576 PK Wiper - Aux. (Low) 113 OR Opr Mon Panel B (+) Switched 578 BU Washer - Aux. 114 RD Warning Horn (Forward) 590 GY Wiper Sw. to Intermittent Module 115 PK Aux. Ckt. 592 BU DC/DC Converter Power Output 118 GY Aux Ckt. A513 RD DC/DC Converter Memory Output 120 YL Aux. Ckt. A571 PU Aux. Ckt. #1 123 WH Aux. Ckt. A572 PK Aux. Ckt. #2 124 GN A/C A579 OR Wiper Motor (+) 129 BU Aux. Ckt. A586 OR Wiper Sw. to Wiper Control 140 BU Aux. Ckt. A588 GN Safety Solenoid Relay to Solenoid 147 PU Aux. Ckt. C537 GN A/C Photo Sensor (+) Signal 149 PU Aux. Ckt. C538 OR A/C Photo Sensor (-) Signal 150 RD Battery (+) Lighting Circuits 151 GN Aux. Ckt. 607 PK Flood Lamp- Front 152 BU Aux. Ckt. 615 YL Cab Flood Lamp 154 RD Aux. Ckt. 616 BU Boom Flood Lamp 168 RD Aux. Ckt. Control Circuits 172 RD Aux. Ckt. 763 BU Torque Converter Sw. 177 RD Main Breaker 786 GN Engine Speed Control - Hi Pressure Sw. 180 GN Aux. Ckt. 788 YL Engine Speed (+) 185 YL Aux. Ckt. 791 PK Engine Speed Control - Low Solenoid 189 RD Aux. Ckt. A718 PU Start Aid Coolant Sensor Signal 191 WH Aux. Ckt. A755 PK Throttle Sw. #1 Ground Circuits A756 BU Throttle Sw. #2 200 BK Main Chassis A757 GY Throttle Sw. #3 201 BK Operator Monitor Return A758 BR Throttle Sw. #4 235 BK Electronic Pump Control Ground A761 PU Electronic Pump Control Ground Basic Machine Circuits A762 PU Electronic Pump Control Engine Speed Ground 301 BU Starter No. 1 Sol A768 BU Pump Control Valve #1 (+) 304 WH Starter Relay No. 1 Output A769 GY Pump Control Valve #2 (-) 306 GN Starter Relay Coil A770 PK Electronic Pump Control Bypass Sw. 307 OR Key Sw. to Neutral Start Sw. A771 PU Float Sw. 308 YL Main Power Relay Coil F771 OR Backup Sw. 309 GY Alternator (R) Term. F772 WH Backup Sw. 310 PU Start Aid Sw. to Start Aid Sol F773 OR Governor Accel. 311 WH Start Aid Sol to Temp Sw. F774 WH Governor Decel. 320 OR Horn Relay Coil to Sw. 877 YL Glow Plug Magnetic Sw. to Glow Plug 321 BR Travel Alarm 961 BR Selector Sw. 322 GY Warning Horn (Forward) K904 GN Pump Discharge - Signal 326 RD Key Sw. "C" Term. K905 RD Pump Discharge - +B 386 PK Air Shutoff Solenoid Enable K906 GN Swing Brake Solenoid - Signal Monitoring Circuits K907 BU Swing Brake Solenoid - +B 403 GN Alternator (R) Term. K909 BU Backup Sw. - +B 405 GY Opr. Mon. Oil Press. (Low Setting) K911 PK E/P Controller - RS485 (+) 412 BU Opr. Mon. Cool Flow K912 GN E/P Controller - RS485 (-) 430 BU Opr. Mon. Air Filter K915 GN Fine Swing Sw. - E/P Controller 487 OR Hydraulic Oil Flow Switch K997 BU +V Sensor 491 PK Hydraulic Oil Temperature Sensor L908 OR Controller RS-232C TX 492 GY Coolant Temperature Sensor Signal L909 BU Controller RS-232C RX 495 GN Fuel Level Sensor L968 OR Electronic Pump Control PS Valve (-) 496 WH Opr. Mon. Panel Hydraulic Oil Level L969 OR Electronic Pump Control PS Valve (+) A495 GY Alternator (R) Terminal # 2 L970 GY Electronic Pump Control to Sw. Common C468 BU Engine Oil Level L971 GN Electronic Pump Control to Travel Pressure Sw. Accessory Circuits L972 BU Low Idle Sw. 501 GN Wiper - Front (Low) L973 GN Fine Swing Control Relay to Solenoid Valve 506 PU Washer - Front L974 GN Electronic Pump Control Boom Raise Pressure Sw. 508 PU Radio Speaker - Left L975 PK Start Aid Control Lamp 1 Output 509 WH Radio Speaker - Left (Common) L977 YL Trenching Solenoid 511 BR Radio Speaker - Right L978 GY Level Finish Solenoid Code Description of Problems 1301 Engine oil pressure is too low. 1302 Engine coolant temperature is too high. 1303 Hydraulic oil temperature is too high. 1304 Air filter is clogged. 1305 Battery voltage is not normal. 2201 Governor actuator feedback sensor circuit is open or shorted to battery voltage. 2202 Governor actuator feedback sensor circuit is shorted to body ground. 2301 Governor actuator feedback signal is not stable. 2302 Governor actuator feedback signal deviates. 2303 Governor actuator does not move. 2304 Calibration data error. 3201 Monitor RAM is not normal. 4101 Electric power supply to the controller is too much (43 volts). 4102 Over-current in proportional reducing valve. 4103 Proportional reducing valve circuit is open. 4105 Over-current in digital output (trenching solenoid). 4106 Over-current in digital output (fine control solenoid). 4107 Over-current in digital output (travel speed change solenoid). 4108 Over-current in digital output (travel alarm). 410A Over-current in digital output (swing brake solenoid). 4201 Engine speed is not normal. 4202 Engine coolant temperature sensor is shorted to body ground. 4203 Hydraulic oil temperature sensor is shorted to body ground. 4204 PWM sensor of pump delivery pressure is shorted to body ground. 4207 PWM sensor of pump delivery pressure is open in circuit. 420A Fuel sensor is shorted to body ground. 420B Fuel sensor is open or shorted to battery voltage. 420C Electric power supply is too low (below 23 volts). 420D Electric power supply is too high (above 32 volts). 420E Engine speed dial is not in one of the 10 specified positions. 4301 Data mismatch 1 between alternator and speed sensor (alternator is abnormal). 4302 Data mismatch 2 between alternator and speed sensor (speed sensor is abnormal). 4303 Engine stalls. A201 Monitor communication is not normal. A202 Monitor takes too much time to respond to controller's signal. A203 Communication is abnormal in controller. Real Time Error Codes 1 2 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, Cable, or Harness Assembly Identification 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 Ground Connection Connector 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. 325-A135 PK-14 AG-C4 111-7898 L-C12 3E-5179 C-C4 130-6795 * * * * * Circuit Number Identification Wire Color Wire Gauge AG-C3 130-6795 Harness identification letter(s) and a serializing code. The "C" stands for connector and the number indicates which connector in the harness. 200-L32 BK-14 325-A135 PK-14 Part Number For Connector Assembly Harness identification code This example indicates wire 135 in harness "AG". Machine Harness Connector and Component Locations A 3 4 6 9 10 11 14 15 13 16 B C D E 1 2 17 18 19 20 21 7 B C D E A 3 4 5 6 8 1 2 7 10 11 14 15 13 16 8 9 12 17 18 19 20 21 5 12

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  • 2001 CaterpillarAll Rights Reserved Printed in U.S.A.

    SENR8964-01February 2001

    325B L ExcavatorElectrical System

    2JR1-UP

    Component LocationComponent Schematic Location

    Machine Location Component

    Schematic Location

    Machine Location

    Actuator - Engine Governor A-9 1 Resistor - Timer Relay E-7 D

    Air Inlet Heater C-8 2 Sender - Hydraulic Oil Temperature A-5 12

    Alarm - Travel G-9 3 Sensor - Air Inlet Heater Coolant Temp. C-9 2

    Alternator B-8 4 Sensor - Coolant Temperature C-8 2

    Assembly - Terminal Block F-8 D Sensor - Fuel Level A-5 13

    Batteries - 12VDC I-8,H-8 5 Sensor - Pump Discharge Pressure B-8 14

    Breaker - Alternator I-8 D Sensor - Sun Load F-1 E

    Breaker - Main I-8 D Solenoid - A/C Clutch C-9 15

    Control - Engine/Pump F-2 C Solenoid - Engine/Pump Control A-7 16

    Controller - Wiper/Washer E-1 A Solenoid - Engine Shutdown B-9 17

    Converter - Voltage C-5 A Solenoid - Fine Swing E-7 18

    Diode G-7 D Solenoid - Hydraulic Lock I-1 A

    Diode - Main Relay G-7 D Solenoid - Level Finish A-7 16

    Fuses I-4,5,6 B Solenoid - Start Aid H-9 19

    Ground - Cab B-5 6 Solenoid - Swing Brake E-7 18

    Ground - Cab E-1 E Solenoid - Travel Speed A-7 16

    Ground - Chassis A-3 7 Solenoid - Trenching A-7 16

    Ground - Chassis A-9 8 Switch - Air Cleaner Flow H-9 20

    Ground - Chassis I-8 D Switch - Aux Hydraulic Pressure H-3 B

    Ground - Platform G-2 B Switch - Backup EPR Valve E-5 C

    Ground - Platform H-1 9 Switch - Backup Governor D-5 C

    Ground - Relay Panel G-7 D Switch - Boom Raise Pressure D-8 18

    Ground Strap - Chassis to Disconnect Sw. I-8 D Switch - Coolant Level H-9 19

    Ground Strap - Chassis to Platform I-6 10 Switch - Disconnect I-8 D

    Horn A-2 7 Switch - Engine Oil Level A-8 1

    Lighter E-1 E Switch - Engine Oil Pressure B-9 15

    Meter - Service F-1 E Switch - Fine Swing Control D-4 C

    Monitor F-1 E Switch - Horn I-1 B

    Motor - Lower Washer I-9 D Switch - Hydraulic Oil Filter A-5 12

    Motor - Lower Wiper H-1 9 Switch - Hydraulic Oil Level A-5 12

    Motor - Starter A-9 8 Switch - Implement Pressure D-8 18

    Motor - Upper Washer I-9 D Switch - Key F-3 C

    Motor - Upper Wiper C-5 6 Switch - Lower Washer D-4 C

    Pickup - Engine Speed B-9 11 Switch - Lower Wiper D-3 C

    Radio - 12VDC C-8,I-3 A Switch - Neutral Start Limit I-1 B

    Relay - Boom Lamp I-7 D Switch - One Touch Low Idle F-2 C

    Relay - Cab/Chassis Lamp I-7 D Switch - Refrigerant Low Pressure C-9 15

    Relay - Heater F-7 D Switch - Start Aid D-5 C

    Relay - Horn I-7 D Switch - Start Aid Coolant Temperature B-9 4

    Relay -Hydraulic Lock Solenoid I-7 D Switch - Suction Line Shutoff Limit A-6 12

    Relay - Main G-7 D Switch - Throttle Position E-3 C

    Relay - Neutral Start F-7 D Switch - Travel Pressure D-8 18

    Relay - Start F-8 D Switch Panel F-2 C

    Relay - Timer E-7 D Unit - A/C, Heater G-5 21

    Resistor - Backup I-8 D Unit - Air Inlet Heater Control I-7 D

    Machine locations are repeated for components located close together.

    A = Located inside of cab.B = Located inside of left console.

    C = Located inside of right console.

    D = Located around relay panel.

    E = Located inside of dash.

    Related Electrical Service ManualsForm Number

    Alternator: (9W-3043) SENR4252

    Electric Starting Motor: (6V-5821) SENR3581

    (104-7040)

    Consist: 6V-5720 SENR3581

    Consist: 106-8557 SENR3859

    Engine/Pump Control: RENR1998

    Starting and Charging: SENR9292

    Title

    Resistor, Sender and Solenoid SpecificationsPart No. Component Description Resistance (Ohms)3E-6332 Solenoid: Start Aid 6.0

    20824-25451 @ 0 C (32 F)

    6134-7496 @ 25 C (77 F)

    3989-4875 @ 35 C (95 F)

    4I-5394 Sender: Hydraulic Oil Temperature 2224-2718 @ 50 C (122 F)

    973-1189 @ 75 C (167 F)

    475-522 @ 100 C (212 F)

    221-269 @ 125 C (257 F)

    7Y-8242 Resistor: Timer Relay 47.0 4.7

    8C-3663 Solenoid: Engine ShutdownStart (Latch) Coil - 1.55 0.15Stop (Unlatch) Coil - 10.3 1.03

    102-8016 Resistor: Backup 47.0 2.35

    111-9916 Solenoid: Engine/Pump Control 11.7 1.2

    121-1490 Solenoid:Level Finish Trenching

    32.0 3.2

    121-1491 Solenoid:Hydraulic Lock Swing Brake Travel Speed

    32.0 3.2

    134-3998 Solenoid: A/C Clutch 17.6 0.6

    At room temperature unless otherwise noted.

    Connector Location

    Connector NumberSchematic Location

    Machine Location

    CONN 1 A-9 1

    CONN 2 F-9 D

    CONN 3 F-9 D

    CONN 4 G-9 D

    CONN 5 G-9 D

    CONN 6 G-8 D

    CONN 7 G-8 D

    CONN 8 G-8 D

    CONN 9 F-8 D

    CONN 10 C-6 A

    CONN 11 C-5 A

    CONN 12 C-5 A

    CONN 13 C-4 A

    CONN 14 F-5 C

    CONN 15 F-5 C

    CONN 16 F-5 C

    CONN 17 F-5 C

    CONN 18 F-4 C

    CONN 19 F-4 C

    CONN 20 F-4 C

    CONN 21 F-4 C

    CONN 22 H-5 B

    CONN 23 H-5 B

    CONN 24 H-4 B

    CONN 25 H-4 B

    CONN 26 H-4 B

    CONN 27 H-4 B

    CONN 28 H-3 B

    CONN 29 H-3 B

    CONN 30 C-3 A

    CONN 31 B-3 7

    CONN 32 A-3 13

    CONN 33 B-2 7

    CONN 34 D-2 CThe 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.

    Off Machine Switch SpecificationPart No. Function Actuate Deactuate Contact Position

    27 C

    (80.6 C)

    70 21 kPa A-B, Normally Open

    (10 3.0psi) A-C, Normally Closed

    Implement Pressure 1225.0 98.0 kPa 882.0 kPa MIN

    Travel Pressure (177.67 14.21 psi) (127.92 psi MIN)

    2646 196 kPa 2156 196 kPa 1-2 Normally Open

    (384 28 psi) (313.00 28.00 psi) 1-3 Normally Closed

    490.00 49.00 kPa 290.00 kPa MIN

    (71.07 7.11 psi) (42.06 psi MIN)

    109-9330 Air Cleaner 635 58 mm H2O - Normally Open

    114-5333 Refrigerant Low Pressure275 to 1750 kPa (39.9 to 253.8 psi)

    --

    Normally Open

    Hydraulic Pressure Normally Open

    106-0179 Normally Open

    106-0180 Boom Raise Pressure

    A hysteresis band exists: with increasing pressure the closed condition can be maintained up to 2800 kpa (405 psi), with decreasing pressure the closedcondition can be maintained down to 170 kpa (25psi).

    Contact position at the contacts of the harness connector.

    3E-6449 Start Aid Coolant Temperature38 3C

    (100.4 37.4F)Normally Closed

    3E-6455 Engine Oil Pressure90 21 kPa(13 3.0 psi)

    106-0181

    Wire DescriptionWire

    NumberWire Color Description

    Wire Number

    Wire Color Description

    Power Circuits Accessory Circuits (Continued)

    101 RD Battery (+) 512 GN Radio Speaker - Right (Common)103 RD Aux. Ckt. 513 OR A/C Compressor/Refrigerant Pressure Sw.105 RD Key Sw. 519 PK Thermostat to Refrigerant Pressure Sw.107 RD Engine Shutdown 546 BU Aux. Hydraulic - Rotate CW108 BU Aux. Ckt. 547 OR Aux. Hydraulic - Rotate CCW109 RD Alt Output (+) Term. 548 GY Aux. Hydraulic - Open111 RD Aux. Ckt. 549 PK Aux. Hydraulic - Close112 PU Main Power Relay Output 576 PK Wiper - Aux. (Low)113 OR Opr Mon Panel B (+) Switched 578 BU Washer - Aux.114 RD Warning Horn (Forward) 590 GY Wiper Sw. to Intermittent Module115 PK Aux. Ckt. 592 BU DC/DC Converter Power Output118 GY Aux Ckt. A513 RD DC/DC Converter Memory Output120 YL Aux. Ckt. A571 PU Aux. Ckt. #1123 WH Aux. Ckt. A572 PK Aux. Ckt. #2124 GN A/C A579 OR Wiper Motor (+)129 BU Aux. Ckt. A586 OR Wiper Sw. to Wiper Control140 BU Aux. Ckt. A588 GN Safety Solenoid Relay to Solenoid147 PU Aux. Ckt. C537 GN A/C Photo Sensor (+) Signal149 PU Aux. Ckt. C538 OR A/C Photo Sensor (-) Signal

    150 RD Battery (+) Lighting Circuits

    151 GN Aux. Ckt. 607 PK Flood Lamp- Front152 BU Aux. Ckt. 615 YL Cab Flood Lamp154 RD Aux. Ckt. 616 BU Boom Flood Lamp

    168 RD Aux. Ckt. Control Circuits

    172 RD Aux. Ckt. 763 BU Torque Converter Sw.177 RD Main Breaker 786 GN Engine Speed Control - Hi Pressure Sw.180 GN Aux. Ckt. 788 YL Engine Speed (+)185 YL Aux. Ckt. 791 PK Engine Speed Control - Low Solenoid189 RD Aux. Ckt. A718 PU Start Aid Coolant Sensor Signal191 WH Aux. Ckt. A755 PK Throttle Sw. #1

    Ground Circuits A756 BU Throttle Sw. #2

    200 BK Main Chassis A757 GY Throttle Sw. #3201 BK Operator Monitor Return A758 BR Throttle Sw. #4235 BK Electronic Pump Control Ground A761 PU Electronic Pump Control Ground

    Basic Machine Circuits A762 PU Electronic Pump Control Engine Speed Ground

    301 BU Starter No. 1 Sol A768 BU Pump Control Valve #1 (+)304 WH Starter Relay No. 1 Output A769 GY Pump Control Valve #2 (-)306 GN Starter Relay Coil A770 PK Electronic Pump Control Bypass Sw.307 OR Key Sw. to Neutral Start Sw. A771 PU Float Sw.308 YL Main Power Relay Coil F771 OR Backup Sw.309 GY Alternator (R) Term. F772 WH Backup Sw.310 PU Start Aid Sw. to Start Aid Sol F773 OR Governor Accel.311 WH Start Aid Sol to Temp Sw. F774 WH Governor Decel.320 OR Horn Relay Coil to Sw. 877 YL Glow Plug Magnetic Sw. to Glow Plug321 BR Travel Alarm 961 BR Selector Sw.322 GY Warning Horn (Forward) K904 GN Pump Discharge - Signal326 RD Key Sw. "C" Term. K905 RD Pump Discharge - +B386 PK Air Shutoff Solenoid Enable K906 GN Swing Brake Solenoid - Signal

    Monitoring Circuits K907 BU Swing Brake Solenoid - +B

    403 GN Alternator (R) Term. K909 BU Backup Sw. - +B405 GY Opr. Mon. Oil Press. (Low Setting) K911 PK E/P Controller - RS485 (+)412 BU Opr. Mon. Cool Flow K912 GN E/P Controller - RS485 (-)430 BU Opr. Mon. Air Filter K915 GN Fine Swing Sw. - E/P Controller487 OR Hydraulic Oil Flow Switch K997 BU +V Sensor491 PK Hydraulic Oil Temperature Sensor L908 OR Controller RS-232C TX492 GY Coolant Temperature Sensor Signal L909 BU Controller RS-232C RX495 GN Fuel Level Sensor L968 OR Electronic Pump Control PS Valve (-)496 WH Opr. Mon. Panel Hydraulic Oil Level L969 OR Electronic Pump Control PS Valve (+)

    A495 GY Alternator (R) Terminal # 2 L970 GY Electronic Pump Control to Sw. CommonC468 BU Engine Oil Level L971 GN Electronic Pump Control to Travel Pressure Sw.

    Accessory Circuits L972 BU Low Idle Sw.

    501 GN Wiper - Front (Low) L973 GN Fine Swing Control Relay to Solenoid Valve506 PU Washer - Front L974 GN Electronic Pump Control Boom Raise Pressure Sw.508 PU Radio Speaker - Left L975 PK Start Aid Control Lamp 1 Output509 WH Radio Speaker - Left (Common) L977 YL Trenching Solenoid511 BR Radio Speaker - Right L978 GY Level Finish Solenoid

    Code Description of Problems1301 Engine oil pressure is too low.

    1302 Engine coolant temperature is too high.

    1303 Hydraulic oil temperature is too high.

    1304 Air filter is clogged.

    1305 Battery voltage is not normal.

    2201 Governor actuator feedback sensor circuit is open or shorted to battery voltage.

    2202 Governor actuator feedback sensor circuit is shorted to body ground.

    2301 Governor actuator feedback signal is not stable.

    2302 Governor actuator feedback signal deviates.

    2303 Governor actuator does not move.

    2304 Calibration data error.

    3201 Monitor RAM is not normal.

    4101 Electric power supply to the controller is too much (43 volts).

    4102 Over-current in proportional reducing valve.

    4103 Proportional reducing valve circuit is open.

    4105 Over-current in digital output (trenching solenoid).

    4106 Over-current in digital output (fine control solenoid).

    4107 Over-current in digital output (travel speed change solenoid).

    4108 Over-current in digital output (travel alarm).

    410A Over-current in digital output (swing brake solenoid).

    4201 Engine speed is not normal.

    4202 Engine coolant temperature sensor is shorted to body ground.

    4203 Hydraulic oil temperature sensor is shorted to body ground.

    4204 PWM sensor of pump delivery pressure is shorted to body ground.

    4207 PWM sensor of pump delivery pressure is open in circuit.

    420A Fuel sensor is shorted to body ground.

    420B Fuel sensor is open or shorted to battery voltage.

    420C Electric power supply is too low (below 23 volts).

    420D Electric power supply is too high (above 32 volts).

    420E Engine speed dial is not in one of the 10 specified positions.

    4301 Data mismatch 1 between alternator and speed sensor (alternator is abnormal).

    4302 Data mismatch 2 between alternator and speed sensor (speed sensor is abnormal).

    4303 Engine stalls.

    A201 Monitor communication is not normal.

    A202 Monitor takes too much time to respond to controller's signal.

    A203 Communication is abnormal in controller.

    Real Time Error Codes

    1

    2

    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, Cable, or Harness Assembly Identification

    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

    Ground

    ConnectionConnector

    PressureSymbol

    TemperatureSymbol

    LevelSymbol

    FlowSymbol

    Circuit BreakerSymbol

    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 12 2

    Typical representation of aSure-Seal connector. The plugand receptacle containboth pins and sockets.

    Typical representation ofa Deutsch connector. Theplug contains all socketsand the receptacle containsall pins.

    325-A135 PK-14

    AG-C4111-7898

    L-C123E-5179

    C-C4130-6795

    ** * *

    *

    CircuitNumberIdentification

    WireColor

    WireGauge

    AG-C3130-6795

    Harness identification letter(s) and aserializing code. The "C" stands forconnector and the number indicateswhich connector in the harness.

    200-L32 BK-14

    325-A135 PK-14

    Part Number For Connector Assembly

    Harness identification codeThis example indicateswire 135 in harness "AG".

    Machine Harness Connector and Component Locations

    A3

    4

    6

    9

    10

    11

    14

    15

    13

    16

    B

    C

    D

    E

    1

    2

    17

    18

    19

    20

    21

    7

    B

    C

    D

    E

    A

    3

    4

    5

    6

    81

    2

    7

    10

    11

    14

    15

    13

    16

    8

    9

    12

    17

    18

    19

    20

    21

    5

    12

  • WIRES THAT HAVE BATTERY VOLTAGE WHEN THE KEY SWITCH IS OFF.

    WIRES THAT HAVE BATTERY VOLTAGE WHEN THE KEY SWITCH IS ON.

    STARTING CIRCUIT.

    GAUGE CIRCUIT.

    MONITOR CIRCUIT.

    WASHER/WIPER CIRCUIT.

    HEATER AND AIR CONDITIONER CIRCUIT.

    GROUND CIRCUIT.

    START AID CIRCUIT.

    ENGINE/PUMP CONTROL.

    ALL DASHED LINES ARE ATTACHMENTS.

    107-RD

    320-OR-18

    I

    1

    112-PU-6

    J704-WH-18

    L52

    615-YL

    J704-WH-18

    200-BK-18

    J

    CBA

    320-OR-18

    151-GN-18150-RD-18

    154-RD-18

    546-BU-18546-BU-18154-RD-18

    189-RD172-RD-18

    J

    J

    L15

    L17

    NEUTRAL STARTLIMIT SW111-4799

    HORN SW128-2134

    200-BK-18

    235-BK-14200-BK-14

    103-RD-18506-PU-18403-GN-18

    A771-PU-18

    788-YL-18A762-PU-18763-BU-18412-BU-18

    C468-BU-18321-BR-18405-GY-18492-GY-18491-PK-18495-GN-18430-BU-18496-WH-18

    K904-GN-18A761-PU-18487-OR-18

    235-BK-14

    200-BK-14

    200-BK-18

    786-GN-18791-PK-18308-YL-18

    151-GN-18

    118-GY512-GN-18511-BR-18509-WH-18

    103-RD-18

    519-PK-18

    113-OR-18185-YL-18

    105-RD

    147-PU-18

    140-BU149-PU

    151-GN-18

    320-OR-18

    107-RD

    112-PU-6112-PU-14112-PU-14112-PU-14112-PU-14112-PU-14

    149-PU140-BU

    200-BK-18200-BK-18200-BK-14

    147-PU-18

    200-BK-18

    H

    M

    MN (NOTE D)

    F

    3 2

    L971-GN-18

    L977-YL-18L974-GN-18L978-GY-18

    306-GN-18

    177-RD-14177-RD-14

    177-RD-14177-RD-14

    112-PU-14

    152-BU

    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

    615-YL

    308-YL-18

    200-BK-18

    200-BK

    A

    10 12 7 9 11

    191-

    WH

    -14

    200-

    BK

    -14

    L970

    -GY-

    18

    PLATFORM

    A

    L8L970-GY-18

    L8

    L20

    115-PK-14

    200-BK-14200-BK-18

    J704-WH-18547-OR-18

    A588-GN-18

    J

    115-PK-14

    111-RD-14

    200-

    BK

    -18

    A

    12 VDC RADIO103-8525

    150-RD-18

    C538-OR-18

    200-

    BK

    -18

    RH SPKR (-)

    C537-GN-18A513-RD-18592-BU-18

    154-RD-18

    189-RD172-RD-18

    L22

    RH SPKR (+)LH SPKR (-)

    K905-RD-14

    LH SPKR (+)

    L22

    111-RD-14

    150-RD-18

    519-PK-18

    200-BK-18

    L970

    -GY-

    18

    LAMP126-7487

    200-BK-14

    A

    A152-BU C

    B

    200-BK-14200-BK-14

    547-OR-18

    J704-WH-18

    GND

    A

    CONV (OUT)

    576-PK

    CONV (MEM)

    21

    L21

    L20

    PLATFORM120-YL

    L19

    114-RD

    114-RD

    HYDLOCK SOL121-1491

    L15

    L14

    N

    200-BK615-YL

    129-BU

    L15

    L975-PK-18

    K997-BU-18

    326-RD

    L21

    L19

    L3

    L3

    OPERATOR STATION

    108-BU

    MN (NOTE D)

    2 1

    LOWERWIPER MOTOR131-0398

    +

    +1-

    MOTOR

    615-YL

    AUX HYDPRESS SW106-0181

    200-

    BK

    508-PU-18

    CONN 29

    140-

    BU

    149-

    PU

    147-

    PU

    -18

    105-

    RD

    107-

    RD

    103-

    RD

    -18

    191-

    WH

    -14

    115-

    PK

    -14

    120-

    YL

    118-

    GY

    124-

    GN

    -14

    512-

    GN

    -18

    511-

    BR

    -18

    508-

    PU

    -18

    509-

    WH

    -18

    519-

    PK

    -18

    124-

    GN

    -14

    113-

    OR

    -18

    185-

    YL-

    1810

    5-R

    D

    118-

    GY

    124-

    GN

    -14

    147-

    PU

    -18

    200-

    BK

    -18

    103-

    RD

    -18

    140-

    BU

    149-

    PU

    151-

    GN

    -18

    320-

    OR

    -18

    107-

    RD

    112-

    PU

    -14

    112-

    PU

    -14

    112-

    PU

    -14

    112-

    PU

    -14

    112-

    PU

    -14

    112-

    PU

    -14

    191-

    WH

    -14

    200-

    BK

    -18

    320-

    OR

    -18

    111-

    RD

    -14

    189-

    RD

    -14

    112-

    PU

    -14

    112-

    PU

    -14

    185-

    YL-

    18

    112-

    PU

    -14

    112-

    PU

    -14

    112-

    PU

    -14

    107-

    RD

    103-

    RD

    -18

    105-

    RD

    149-

    PU

    191-

    WH

    -14

    118-

    GY

    124-

    GN

    -14

    120-

    YL

    A

    3 7 91 115 2 14 356

    A

    J

    12 11 10 6 1 3527894

    J

    A

    4

    177-

    RD

    -14

    177-

    RD

    -14

    177-

    RD

    -14

    177-

    RD

    -14

    147-

    PU

    -18

    118-GY124-GN-14

    12 410 26

    149-PU140-BU

    105-RD107-RD

    103-RD-18

    147-PU-18115-PK-14

    120-YL

    191-WH-14

    10A10A15A10A10A10A

    15A

    CAB/CHASSIS LAMPRADIOLOWER WASHER/WIPERWASHER/WIPER

    CIGAR LIGHTERA/C /HEATER

    HORN

    A

    15A

    DOME LAMP

    KEY SW

    BOOM LAMPFINE SWING

    SHUTDOWN

    ATCH LUBRICATOR

    JJ

    FUSE BASE111-4812

    L10

    546-

    BU

    -18

    1 8 62

    J704

    -WH

    -18

    547-

    OR

    -18

    54

    152-

    BU

    J704

    -WH

    -18

    961-

    GN

    -18

    152-

    BU

    3

    549-

    PK

    -18

    548-

    GY-

    18

    152-

    BU

    J704

    -WH

    -18

    546-

    BU

    -18

    547-

    OR

    -18

    A

    J704

    -WH

    -18

    129-

    BU

    120-

    YL

    113-

    OR

    -18

    123-

    WH

    -14

    C53

    8-O

    R-1

    8C

    537-

    GN

    -18

    A51

    3-R

    D-1

    8

    592-

    BU

    -18

    A

    J

    8 7 5 4 3 2

    L52

    L20

    547-

    OR

    -18

    115-

    PK

    -14

    K90

    5-R

    D-1

    4

    150-

    RD

    -18

    154-

    RD

    -18

    172-

    RD

    -18

    L39

    L38

    L37

    L37

    L38

    177-RD-14

    L39

    115-

    PK

    -14

    172-

    RD

    -18

    189-

    RD

    154-

    RD

    -18

    150-

    RD

    -18

    111-

    RD

    -14

    K90

    5-R

    D-1

    4

    L20

    L22

    L34

    168-RD

    114-RD

    AUX CKT

    J704

    -WH

    -18

    113-

    OR

    -18

    113-

    OR

    -18

    129-

    BU

    129-BU

    SWITCH PANEL113-OR-18

    546-

    BU

    -18

    114-

    RD

    151-

    GN

    -18

    308-

    YL-

    18

    3412

    308-

    Yl-1

    8

    L10

    L970

    -GY-

    18

    21875643

    508-PU-18509-WH-18511-BR-18

    J

    512-GN-18

    200-

    BK

    -18

    J

    152-BU

    ATCH HYD CTL

    J

    HYD OIL FILTER SW113-OR-18

    A513-RD-18

    ANTENNA CABLE134-4430

    592-BU-18

    200-BK-18

    L24

    168-

    RD

    177-RD-14

    L17

    L15

    L24

    123-

    WH

    -14

    108-

    BU

    1

    114-

    RD

    140-

    BU

    6

    113-

    OR

    -18

    113-

    OR

    -18

    129-

    BU

    108-

    BU

    J

    114-

    RD

    200-

    BK

    -18

    592-

    BU

    -18

    A51

    3-R

    D-1

    851

    2-G

    N-1

    851

    1-B

    R-1

    850

    9-W

    H-1

    850

    8-P

    U-1

    8

    78126543

    CONN 23 CONN 24 CONN 25 CONN 26 CONN 27

    CONN 28

    200-BK

    A770-PK-18

    200-BK

    185-YL18

    200-BK-18320-OR-18

    151-GN-18

    200-BK-18200-BK-18

    791-PK-18A770-PK-18

    K90

    9-B

    U-1

    8A

    770-

    PK

    -18

    791-

    PK

    -18

    615-

    YL

    200-

    BK

    -18

    151-

    GN

    -18

    A58

    8-G

    N-1

    8

    320-

    OR

    -18

    786-

    GN

    -18

    149-

    PU

    616-

    BU

    A71

    8-P

    U-1

    8

    306-

    GN

    -18

    310-

    PU

    -18

    200-

    BK

    -18

    308-

    YL-

    18

    A77

    0-P

    K-1

    8K

    909-

    BU

    -18

    615-YL

    791-PK-18115-PK-18115-PK-18

    151-GN-18200-BK-18

    A588-GN-18616-BU

    149-PU-18149-PU-18

    149-PU

    320-OR-18

    H

    I

    311-

    WH

    -18

    310-

    PU

    -18

    ATCH STARTAID SOL3E-6332

    1

    AA

    2

    COOLANTLEVEL SW096-0744

    MOTOR

    UPPER WASHER7T-8890

    LOWER WASHER7T-8890

    BATTERY3T-5760

    POS NEGNEGPOS

    ATCHBATTERY3T-5760(NOTE C)

    200-

    BK

    200-

    BK

    -18

    K90

    9-B

    U-1

    8

    POS NEG NEGPOS

    9 8 7 6 5

    DISCONNECT SW.7N-0719

    ALT BREAKER9S-0174

    YY

    BACKUPRESISTOR102-8016

    HYD LOCK SOL RELAY111-4871

    506-PU-18

    CAB/CHASSIS LAMP RELAY111-4871578-BU-18

    60A

    200-BK-18

    200-BK-18 MOTORA

    HORN RELAY111-4871

    BOOM LAMP RELAY111-4871

    A

    DIODE121-1022

    KE

    Y S

    W.(

    ON

    ) CONT UNIT104-3204

    ZZ

    CH

    EC

    K T

    ER

    M.

    RE

    LAY

    KE

    Y S

    W.(

    STA

    RT

    )

    GN

    D

    IND

    ICAT

    OR

    RE

    GU

    LATO

    RT

    EM

    P.

    L975

    -PK

    -18

    306-

    GN

    -18

    177-

    RD

    -14

    177-

    RD

    -14

    177-RD-14

    RD-00

    RD-00

    506-PU-18578-BU-18

    177-RD-14177-RD-14

    VVAD

    AD

    177-

    RD

    -6

    109-

    RD

    -6

    101-

    RD

    -6

    172-RD-18

    111-RD-14

    101-

    RD

    -610

    1-R

    D-6

    MAIN BREAKER9S-0174

    185-YL-18

    112-PU-14112-PU-14

    180-GN

    189-RD-14

    8

    ENG GOVPLATFORMCHASSIS

    GROUND STRAP7G-1060

    10A

    FUSE10A 9W-144215A 9W-1441

    BACKUP

    10A

    10A10A10A10A10A10A10A

    10A10A10A10A

    15AE/P CONT

    HYD LOCK SOL10A

    AUX CKT

    HYD LOCK SW

    JJJJ

    200-BK-18200-BK-18

    306-GN-18

    114-

    RD

    114-RD

    60A

    BK

    -00

    RD-00

    RD-00

    A

    CHASSIS

    GG(NOTE C)

    CC

    BK

    -00

    FF (NOTE C)

    BB

    EE (NOTE C)

    AA

    L15

    L15

    BB

    189-RD

    RELAY PANEL

    115-PK-14

    114-RD-18114-RD-18

    150-

    RD

    -18

    A49

    5-G

    Y-18

    115-

    PK

    -14

    K909-BU-18

    150-RD-18

    306-

    GN

    -18

    K90

    9-B

    U-1

    8

    786-GN-18

    177-RD-14

    320-

    OR

    -18

    200-

    BK

    -18

    412-

    BU

    -18

    K905-RD-14

    150-RD-18

    150-RD-18150-RD-18

    150-RD-18150-RD-18

    154-RD-18

    L40

    L17

    L15

    L17

    L38

    L37

    L17

    108-BU

    L40

    L39

    180-

    GN

    168-

    RD

    J

    12

    180-GN

    K905-RD-14

    10A

    112-

    PU

    -14

    CC

    GG

    REMOVAL TOOL7Y-5493

    172-RD-18

    114-RD

    123-WH-14

    123-WH-14

    ATCH FAN108-BU

    607-PK322-GY

    322-

    GY

    J704-WH-18

    322-

    GY

    114-

    RD

    J704

    -WH

    -18

    607-

    PK

    ATCH LAMPS

    AIR INLET HEATER

    CONN 22

    147-PU-18

    F774-WH-18F773-OR-18A761-PU-18K904-GN-18430-BU-18

    K906-GN-18A771-PU-18

    763-BU-18

    112-PU-6

    K909-BU-18

    151-GN-18

    308-YL-18307-OR-18

    791-PK-18615-YL

    786-GN-18149-PU

    320-OR-18

    200-

    BK

    -14

    519-

    PK

    -18

    590-

    GY-

    1850

    1-G

    N-1

    8A

    586-

    OR

    -18

    786-

    GN

    -18

    791-

    PK

    -18

    113-

    OR

    -18

    308-

    YL-

    18

    307-

    OR

    -18

    105-

    RD

    A75

    8-B

    R-1

    8A

    757-

    GY-

    18A

    756-

    BU

    -18

    A75

    5-P

    K-1

    8

    578-

    BU

    -18

    K91

    5-G

    N-1

    8

    310-

    PU

    -18

    A76

    9-G

    Y-18

    A76

    8-B

    U-1

    8K

    906-

    GN

    -18

    185-

    YL-

    18K

    909-

    BU

    -18

    K90

    7-B

    U-1

    8A

    770-

    PK

    -18

    F77

    2-W

    H-1

    8F

    774-

    WH

    -18

    F77

    3-O

    R-1

    8F

    771-

    OR

    -18

    615-YL-18 615-YL615-YL

    A586-OR-18501-GN-18590-GY-18

    124-

    GN

    -14

    200-BK

    K909-BU-18

    A588-GN-18

    151-GN-18

    308-YL-18307-OR-18

    791-PK-18615-YL

    RELAY PANEL

    786-GN-18

    200-BK-18200-BK-18200-BK-18200-BK-18200-BK-18

    309-

    GY-

    18

    308-YL-18

    A718-PU-18616-BU149-PU

    786-GN-18

    320-OR-18

    A588-GN-18

    151-GN-18200-BK-18200-BK-18200-BK-18

    615-YL

    200-BK-18

    149-PU

    200-

    BK

    -18

    K909-BU-18

    307-OR-18

    386-PK-18200-BK-18

    K909-BU-18

    200-BK-18200-BK-18

    306-GN-18

    306-GN-18308-YL-18

    308-

    YL-

    18

    G

    1112

    12345678910

    12

    321-BR-18200-BK-18

    AIR CLEANER SW109-9330

    TRAVEL ALARM3E-7738

    B

    12

    320-OR-18

    A770-PK-18

    200-

    BK

    -18

    308-

    YL-

    1830

    8-Y

    L-18

    A588-GN-18

    151-GN-18

    308-YL-18307-OR-18

    791-PK-18615-YL

    308-

    YL-

    18

    786-GN-18149-PU

    320-OR-18

    A770-PK-18

    K909-BU-18200-BK

    F

    A718-PU-18386-PK-18309-GY-18

    616-BU

    UUVV

    546312

    5

    34

    6

    21

    789101112

    MAIN RELAY3T-0376

    4 5 6

    3

    12

    21

    7

    11

    89

    10

    DIODE121-1022

    200-

    BK

    -18

    306-

    GN

    -18

    177-

    RD

    -8

    A718-PU-18386-PK-18

    309-GY-18616-BU

    306-GN-18

    304-WH-8

    877-YL-4

    101-RD-4

    L975-PK-18

    L975-PK-18

    L975-PK-18

    L975-PK-18

    L973-GN-18

    L977-YL-18L978-GY-18L974-GN-18

    L969

    -WH

    -18

    L968

    -OR

    -18

    L973

    -GN

    -18

    L972

    -BU

    -18

    A769-GY-18491-PK-18496-WH-18495-GN-18

    403-GN-18788-YL-18

    A762-PU-18C468-BU-18405-GY-18492-GY-18519-PK-18

    321-BR-18412-BU-18

    306-GN-18

    306-GN-18

    615-YL-18

    306-GN-18

    487-OR-18

    310-PU-18

    107-RD103-RD-18

    177-RD-14177-RD-14

    177-

    RD

    -14

    177-

    RD

    -14

    310-PU-18

    310-PU-18

    200-

    BK

    -18

    177-RD-14

    200-BK-18

    306-

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    -18

    200-

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    -18

    308-

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    18

    177-

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    -6

    K90

    9-B

    U-1

    8

    307-

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    -18

    200-

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    -18

    177-

    RD

    -14

    115-PK-14

    177-RD-14177-RD-14

    112-

    PU

    -6

    200-

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    -18

    386-

    PK

    -18

    386-PK-18

    8965

    1211

    4

    10

    10

    98

    12

    76

    11

    5

    21

    4321

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    7

    307-OR-18

    A75

    5-P

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    756-

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    -18

    A75

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    A75

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    18F

    771-

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    -18

    F77

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    915-

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    7-B

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    308-YL-18200-BK-18

    112-PU-6

    A A

    7 81 65432

    H H

    304-WH-8

    68 17 4 5 3 2

    152-

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    152-

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    177-

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    -8

    114-RD

    200-

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    -18

    A

    1 64 32

    A/CUNIT152-5085

    177-

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    -8

    L971-GN-18

    115-PK-14

    154-RD-18

    111-RD-14

    150-RD-18

    K997-BU-18

    189-RD

    154-RD-18

    111-RD-14

    150-RD-18

    BB

    B

    A

    A

    L45

    L15

    L50

    D

    D

    DA

    A

    A

    L48L47

    189-RD

    154-RD-18

    111-RD-14

    150-RD-18

    115-PK-14

    A495-GY-18

    A495-GY-18

    150-RD-18

    114-RD

    154-RD-18

    189-RD111-RD-14

    306-GN-18

    306-GN-18

    C53

    8-O

    R-1

    8C

    537-

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    -18

    308-

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    18

    576-

    PK

    5

    310-PU-18

    877-YL-4101-RD-4

    386-PK-18

    326-RD

    A768-BU-18

    172-RD-18

    WW

    306-

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    -18

    200-

    BK

    -18

    200-

    BK

    -18

    177-

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    -14

    200-BK-18

    321-

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    -18

    200-BK-18

    430-

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    -18

    412-

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    -18

    306-

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    -18

    310-

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    -18

    311-

    WH

    -18

    430-

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    -18

    200-

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    -18

    A49

    5-G

    Y-18

    111-

    RD

    -14

    189-

    RD

    154-

    RD

    -18

    154-RD-18 310

    -PU

    -18

    200-

    BK

    -18

    105-

    RD

    F77

    3-O

    R-1

    8F

    774-

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    -18

    A77

    0-P

    K-1

    8A

    769-

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    18A

    768-

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    -18

    K90

    6-G

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    8

    615-

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    18

    L973

    -GN

    -18

    578-

    BU

    -18

    307-

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    -18

    308-

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    18

    791-

    PK

    -18

    786-

    GN

    -18

    185-

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    18

    113-

    OR

    -18

    A58

    6-O

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    850

    1-G

    N-1

    859

    0-G

    Y-18

    200-

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    -18

    607-PK

    322-GY

    K90

    9-B

    U-1

    8

    607-PK

    L18

    430-BU-18310-PU-18

    12 110 8 11 12 9 10 11 4321 982 7654321 4 5 6

    1 7 3

    3

    HH

    AA

    H

    2

    A

    H

    4

    A

    306-GN-18A718-PU-18309-GY-18

    616-BU

    304-WH-8877-YL-4101-RD-4

    ANTENNACABLE8R-6111

    322-GY607-PK

    21

    IN 1

    L21

    GND

    UU

    L19

    ZZ

    YYJJ

    XXWW

    1218

    2

    1011

    34

    9

    TIMER RELAY111-4870

    7

    6

    XX

    5

    615-

    YL-

    18

    NEUTRALSTART RELAY111-4871

    START RELAY125-1302

    L21

    L18

    L34

    L34

    L8

    L19L3

    L4

    L25

    L25

    L4

    L21

    JJ KK

    L20

    109-RD-6607-PK

    1 2

    24

    HEATERRELAY116-0114

    KK

    B

    BA

    A

    109-RD-6

    L48

    L47

    L47

    L48

    A

    B

    B

    B

    B

    DB

    L51

    L49

    L51

    L49

    961-

    GN

    -18

    32118

    0-G

    NA

    571-

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    H

    A57

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    A57

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    571-

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    326-

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    180-

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    961-

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    -18

    961-

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    -18

    200-

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    -14

    326-

    RD

    576-

    PK

    BLOCK121-1023

    L45

    L49

    113-OR-18140-BU

    123-WH-14

    J704-WH-18

    615-YL

    114-RD

    123-WH-14

    J704-WH-18

    +B CO

    MP

    GN

    DS

    UN

    +S

    UN

    -

    ATCHHEATER UNIT152-5087

    615-YL

    308-

    YL-

    18

    A588-GN-18

    322-GY

    607-PK

    615-YL

    115-PK-14J704-WH-18

    J704-WH-18

    615-YL

    607-PK322-GY

    B

    CONN 2

    CONN 3

    CONN 4

    CONN 5

    CONN 9

    CONN 8

    CONN 7

    CONN 6

    CONN 14

    CONN 15CONN 16 CONN 17 CONN 18 CONN 19

    CONN 20

    307-OR-18578-BU-18

    K906-GN-18A768-BU-18A769-GY-18A770-PK-18F774-WH-18F773-OR-18K909-BU-18310-PU-18

    A588-GN-18A588-GN-18

    200-

    BK

    -18

    200-

    BK

    -18

    200-

    BK

    -18

    200-

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    -18

    200-BK-18200-BK-18

    G

    F

    E

    L973-GN-18

    ENG/PUMP CONT151-9375

    L971-GN-18L970-GY-18

    L977-YL-18L974-GN-18

    L969-WH-18403-GN-18

    MONITOR +B OUT

    L968-OR-18

    A761-PU-18

    L978-GY-18

    763-BU-18

    A771-PU-18K997-BU-18

    788-YL-18A762-PU-18

    412-BU-18

    430-BU-18

    321-BR-18405-GY-18492-GY-18491-PK-18495-GN-18

    496-WH-18

    576-PK

    C468-BU-18

    K907-BU-18

    K904-GN-18

    EPR VALVE (+)

    GOV ACTR FDBK

    COOLANT LEVEL SWTRAVEL SPEED SOLENG SPEED SENSOR (-)ENG SPEED SENSOR (+)

    TRENCHING SOLIMPLEMENT PRESS SW

    ENG OIL LEVEL SW

    FUEL LEVEL SENSOR

    FRONT PUMP PRESS SENSORHYD OIL LEVEL SWAIR CLEANER SENSOR

    HYD OIL TEMP SENSORCOOLANT SENSOR

    9

    28

    31261330293540 2

    6

    39

    24252215

    ALTERNATOR (R TERM)

    738

    12

    TRAVEL ALARMENG OIL PRESS SW

    36

    SWING BRAKE SOL

    23

    EPR VALVE (-)

    17

    21 8

    27

    18 TRAVEL PRESS SW

    BOOM RAISE PRESS SWLEVEL FINISH SOLDUAL PWR SOL

    AUX HYD PRESS SW

    A

    37

    4 3

    OPTION SENSOR (PWM)

    1

    1619

    5

    OPTION SENSOR (PWM)

    3233

    DEGITAL OUT (-)DEGITAL OUT (-)

    14

    11

    34

    JOY STICK +B OUT

    L10

    549-

    PK

    -18

    548-

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    18

    200-BK

    200-BK-18

    L8L8L18

    200-

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    -18

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    -18

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    -18

    L13L12

    L11

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    -18

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    1 32

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    307-OR-18

    A757-GY-18

    615-YL-18

    A756-BU-18A755-PK-18

    105-RD

    A586-OR-18

    549-PK-18

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    501-GN-18

    K912-GN-18

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    5432

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    A579-OR

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    -14

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    L972-BU-18200-BK-18

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    200-BK-18113-OR-18791-PK-18786-GN-18

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    615-YL

    6

    L11

    L12

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    L6E

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    +

    HONE TOUCHLOW IDLE SW128-2134

    200-BK-18

    +BL. CHASSISL. BOOM

    WASHW. LOWW. INT

    GND

    GNDLIGHTRS485-+BMAINRS485+

    N

    200-BK200-BK-18

    200-BK

    L21

    L19L3

    L18

    L18

    L13

    L13

    L12

    L11

    L13L12

    L11

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    K997-BU-18

    L7

    L14

    L1

    SW INPUT

    F

    S4S3S2S1

    COM

    M

    H

    MONITOR151-9385

    SWITCH PANEL111-4800

    KEY SW9G-7641

    H

    SUN LOADSENSOR128-2162

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    WIPER/WASHERCONTROLLER127-9838

    615-YL

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    LIGHTER9W-0335

    506-PU-18

    CONN 21

    E

    D

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    B

    A

    200-BK-18311-WH-18

    C468-BU-18

    200-BK-18

    A761-PU-18

    BKWH

    200-BK-18

    F773-OR-18F774-WH-18

    K90

    4-G

    N-1

    8

    200-BK-18200-BK-18

    200-

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    -18

    200-BK-18200-BK-18

    A769-GY-18A768-BU-18

    763-BU-18

    200-BK-18200-BK-18200-BK-18

    A76

    8-B

    U-1

    8A

    769-

    GY-

    18

    101-RD-4304-WH-8

    311-WH-18403-GN-18

    309-GY-18492-GY-18

    A718-PU-18877-YL-4

    A762-PU-18788-YL-18405-GY-18

    F774-WH-18F773-OR-18A761-PU-18

    C468-BU-18

    200-

    BK

    -420

    0-B

    K-1

    820

    0-B

    K-6

    200-BK-4

    A718-PU-18200-BK-18

    492-GY-18200-BK-18

    309-GY-18

    403-GN-18

    200-BK-6

    200-

    BK

    -18

    405-GY-18788-YL-18A762-PU-18

    304-WH-8

    RD-00RD-00

    200-BK-4200-BK-6200-BK-10

    200-BK-18200-BK-18200-BK-18

    200-BK-18

    301-BU-10

    513-OR-18200-BK-18

    200-BK-10301-BU-10

    405-GY-18200-BK-18

    788-YL-18A762-PU-18

    101-RD-4

    L977-YL-18

    L978-GY-18

    L978

    -GY-

    18

    763-

    BU

    -18

    L977

    -YL-

    18

    200-

    BK

    -18

    200-

    BK

    -18

    200-

    BK

    -18

    326-RD

    200-

    BK

    -18

    200-BK-18

    200-BK-18200-BK-18

    200-BK-18200-BK-18200-BK-18

    877-YL-4

    326-RD

    K99

    7-B

    U-1

    8

    ATCH START AIDCOOLANT TEMP SW.3E-6449

    21

    B

    T

    AIH COOLANTTEMP SENSOR125-4812

    B

    21

    PUMP DISCHARGEPRESS SENSOR106-0178

    SIG

    NA

    LG

    RO

    UN

    DB

    K-1

    8B

    R-1

    8Y

    L-18

    BC

    107-9652

    T

    B

    GND

    F/B+B

    ACCEL

    B B

    B

    BK

    -00

    C

    21

    DECEL6

    B

    B

    ENG GOVACTUATOR106-0126

    HH

    CB

    BB

    CC

    C

    C

    C

    KEY

    ALTERNATOR9W-3043

    ENG OIL LEVEL SW111-4759

    12

    21

    B

    T

    COOLANT TEMPSENSOR4I-5394

    CB

    BATMTR

    SG

    B

    STARTERMOTOR104-7040

    B-

    21

    ENGSHUTDOWN SOL8C-3663

    ENG OILPRESS SW3E-6455

    CHASSIS

    BK-18RD-18

    ENG SPEEDPICKUP6V-2455

    A

    CBA

    BU-18

    B+RD ALT

    A/C CLUTCHSOL134-3998 (NOTE E)

    MOTOR

    B

    12

    B

    6

    BBBB212

    1

    ENG/PUMP CONTSOL111-9916

    LEVEL FINISHSOL121-1490

    TRENCHING SOL121-1490

    TRAVEL SPEEDSOL121-1491

    122

    9 8 7

    1

    43

    54

    5

    3

    L44

    L43

    L44

    B CHASSIS

    L42 L

    41L2

    9 L30

    C

    EE

    AA

    L43

    L43

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    CHASSIS

    L28

    L30

    L29

    L41L

    42

    L42

    L41

    2341

    1432306-GN-18

    ATCHSUCTION LINESHUTOFF LIMIT SW3E-5181

    41 2

    3

    K909-BU-18

    308-YL-18308-YL-18

    200-BK-18

    200-BK-18

    SPEAKER (L)6T-7695

    SPEAKER (R)6T-7695

    F

    F

    200-BK-18

    K906-GN-18200-BK-18

    189-RD

    177-RD-14111-RD-14

    A495-GY-18

    RELAY PANEL

    200-BK-18

    L974-GN-18K906-GN-18

    200-BK-18200-BK-18200-BK-18200-BK-18

    L974-GN-18200-BK-18

    200-BK-18

    200-BK-18

    L971-GN-18A771-PU-18L974-GN-18K906-GN-18

    495-GN-18616-BU

    496-WH-18487-OR-18491-PK-18306-GN-18386-PK-18

    L977-YL-18763-BU-18

    L978-GY-18A768-BU-18A769-GY-18K904-GN-18K997-BU-18

    A761-PU-18F773-OR-18F774-WH-18

    326-RD

    172-RD-18

    519-PK-18

    REFRIGERANTLOW PRESS SW114-5333 (NOTE A) (NOTE E)

    513-OR-18519-PK-18

    405-GY-18

    PK

    788-YL-18

    12

    C

    A762-PU-18C468-BU-18

    109-RD-6

    101-RD-4304-WH-8

    309-GY-18492-GY-18

    A718-PU-18877-YL-4

    311-WH-18

    B

    ANTENNA8E-1118

    200-BK-18495-GN-18

    616-BU

    200-BK-18

    311-WH-18321-BR-18412-BU-18

    12 VDC RADIO3E-7140(NOTE F)

    L973-GN-18147-PU-18

    OUT 1+B

    IN 2OUT 2

    AB

    13

    RESISTOR7Y-8242

    21

    B

    403-GN-18109-RD-6

    519-PK-18

    FINE SWINGSOL116-3526

    BOOM RAISEPRESS SW106-0180

    12

    B

    21

    21

    B

    21

    B

    SWINGBRAKE SOL121-1491

    IMPLEMENT PRESS SW106-0179

    TRAVELPRESS SW106-0179

    172-RD-18

    322-GY607-PK

    L50

    L51

    113-OR-18

    L45

    L44

    L42

    L41

    L29

    L30

    L44

    L42

    L41

    L29

    L30

    L30L29

    L41

    L30

    L29L28

    -

    +

    -

    +

    512-GN-18511-BR-18

    509-WH-18508-PU-18

    OR

    109-RD-6

    326-RD

    L42

    WH-18WH-18

    WH-18WH-18

    B

    L44

    B

    6V-5821 (NOTE C)

    +B

    L45

    607-PK

    L971-GN-18

    A771-PU-18

    L971-GN-18A771-PU-18

    L44

    172-RD-18

    519-PK-18

    322-GY

    607-PK607-PK

    AIR INLET HEATER

    CONN 1

    103-RD-18

    403-GN-18403-GN-18

    403-GN-18403-GN-18

    308-

    YL-

    18

    A75

    8-B

    R-1

    8A

    757-

    GY-

    18A

    756-

    BU

    -18

    A75

    5-P

    K-1

    8

    K91

    5-G

    N-1

    8F

    771-

    OR

    -18

    F77

    2-W

    H-1

    8K

    907-

    BU

    -18

    103-RD-18

    200-BK-14200-BK-14

    403-GN-18

    200-BK-14

    6 5 4

    D

    3 2 1

    C

    B

    A

    200-BK-18

    487-OR-18200-BK-18

    L972-BU-18

    L969

    -WH

    -18

    L968

    -OR

    -18

    L972

    -BU

    -18

    495-GN-18

    AD 128-8936

    NOTE E : REM'D WITH ATCH HEATER OPTION.

    496-WH-18200-BK-18

    BKYL

    BHYD OILFILTER SW143-7966GROUND

    SIGNAL+B

    CB

    A

    BB

    B

    HYD OILTEMP SENDER4I-5394

    FUEL LEVELSENSOR105-9911 2

    1

    HYD OILLEVEL SW111-4760

    2

    T

    1

    B

    200-BK-14200-BK-14

    K912-GN-18K911-PK-18

    403-GN-18

    615-YL-18

    K911-PK-18K912-GN-18A586-OR-18590-GY-18501-GN-18

    200-BK-14103-RD-18

    118-GY

    615-YL-18

    403-GN-18

    200-BK-14

    103-RD-18512-GN-18511-BR-18509-WH-18508-PU-18

    615-YL

    615-YL

    506-PU-18

    590-GY-18501-GN-18

    A586-OR-18

    103-RD-18103-RD-18

    509-WH-18511-BR-18512-GN-18

    118-GY

    103-RD-18

    506-PU-18

    118-

    GY

    A755-PK-18A756-BU-18A757-GY-18A758-BR-18308-YL-18

    L975-PK-18

    615-YL

    NOTE C : USE WITH COLD WEATHER.

    ZZ 111-4831

    235-BK-18235-BK-18

    F772-WH-18F771-OR-18

    K915-GN-18

    K911-PK-18K912-GN-18

    L909-BU-18L908-OR-18

    487-OR-18

    K90

    5-R

    D-1

    8

    235-BK-18

    512-

    GN

    -18

    511-

    BR

    -18

    509-

    WH

    -18

    508-

    PU

    -18

    THROTTLE DIAL S1THROTTLE DIAL S2THROTTLE DIAL S3THROTTLE DIAL S4

    GOV ACTR (A)GOV ACTR (B)

    RS485 - (VALVE CONT)RS485 + (VALVE CONT)

    RS232C (GND)RS232C (RX)

    2010

    6 RS485 - (RH JOYSTICK)RS485 + (LH JOYSTICK) 7

    CAB

    8 RS485 - (LH JOYSTICK)RS485 + (PEDAL) 9

    10

    RS485 + (SEMI AUTO)

    RS485 - (PEDAL)RS485 + (RADIO CONT)17

    HYD TANK PRESS. SW

    RS485 + (MONITOR)

    RS485 - (SEMI AUTO)

    HYD TANK INDICATOR

    RS485 + (RH JOYSTICK)

    RS485 - (MONITOR)

    HYD OIL FILTER INDICATOR

    18 RS485 - (RADIO CONT)RS485 + (ELEC GOV)19

    +B+B

    AIH INDICATOR

    FINE SWING SW

    3233

    25

    KEY SW ON

    RS485 - (ELEC GOV)

    26

    12

    40

    2

    4

    2827

    LOW IDLE SW

    21

    20

    11122

    343

    242314131615

    5

    3635

    29

    3130

    39

    38

    37

    GNDGND

    HAMMER PRESS. SW

    RS232C (TX)

    KEY SW START

    DOME LAMP162-7755

    2 3 4 5 61 87

    21 8 3 547 6

    431 2

    F

    F

    E E

    A

    A A

    L7

    A

    A

    3 14 2

    576-

    PK

    129

    -BU

    403-

    GN

    -18

    615-

    YL-

    1810

    3-R

    D-1

    8

    C53

    8-O

    R-1

    8K

    997-

    BU

    -18

    1211109K

    912-

    GN

    -18

    K91

    1-P

    K-1

    8

    501-

    GN

    -18

    C53

    7-G

    N-1

    8

    590-

    GY-

    18

    UNLESS OTHERWISE SPECIFIED ALL WIRE IS 16 GAGE.

    COMPONENTS ARE SHOWN INSTALLED ON A FULLYOPERABLE MACHINE WITH THE KEY AND ENGINE OFF.

    JJ 111-4832HH 7Y-8298GG 116-0242 FF 116-0080 EE 125-4767 CC 125-4727BB 116-0080AA 121-1046

    CABLE AS.

    VV 128-8937

    WIRE AS.

    200-

    BK

    -14

    A58

    6-O

    R-1

    8A

    579-

    OR

    13

    200-

    BK

    -14

    K 111-4835 B-2J 132-1979 H-3H 141-6437 D-3G 121-0986 B-2 (NOTE B) F 128-7337 G-1E 128-7336 E-1D 132-1978 F-8C 130-8446 A-9B 130-8445 A-3

    GYPUBR

    REDWHITEORANGEYELLOWPINK

    ABBREV COLOR

    BLACKGRAYPURPLEBROWN

    DESCRIPTIONSYMBOL

    CONNECTOR

    INTERNAL ELECTRICALCONNECTION TO SURFACEOF COMPONENT

    BLADE, SPADE, RING,OR SCREW TERMINAL

    BKPKYLORWHRD

    GNBU

    GREENBLUE

    CIRCUIT CONNECTED

    CIRCUIT NOT CONNECTED

    ATCH WIRE, CABLE,COMPONENT

    L# CIRCUIT GROUPINGDESIGNATION

    IDENT PART NO. LOC

    200-

    BK

    -18

    HARNESS AS.

    592-

    BU

    -18

    509-

    WH

    -18

    508-

    PU

    -18

    512-

    GN

    -18

    511-

    BR

    -18

    A51

    3-R

    D-1

    859

    2-B

    U-1

    8

    A51

    3-R

    D-1

    8

    CONVERTER112-3543 (2.5A)

    6 1234 5

    GNDOUT INMEM IGN MOTORF

    UPPER WIPERMOTOR147-7982

    42

    6

    KK 111-4833495-GN-18200-BK-18

    616-BU

    NOTE B : USE WITH SHORT BOOM.

    200-

    BK

    -18

    L969-WH-18

    200-

    BK

    -18

    A770-PK-18

    L968-OR-18

    200-

    BK

    -18

    NOTE F : HORIZONTAL MTG LOCATION FOR CASSETTE

    200-

    BK

    -18

    200-

    BK

    -18

    615-

    YL-

    1861

    5-Y

    L-18

    200-BK-18

    L8

    L970-GY-18

    L8

    YY 111-4830

    615-

    YL-

    1861

    5-Y

    L-18

    578-

    BU

    -18

    L973

    -GN

    -18

    200-

    BK

    -18

    200-

    BK

    -18

    K907-BU-18

    K90

    5-R

    D-1

    4

    GN

    D

    CO

    NV

    (O

    UT

    )

    200-

    BK

    -18

    K909-BU-18

    200-

    BK

    -18

    200-

    BK

    -18

    XX 111-4829

    200-

    BK

    -18

    200-

    BK

    -18185-YL-18

    K909-BU-18

    L33

    L31

    L9 L12

    L13

    200-

    BK

    -18

    592-

    BU

    -18

    L31

    HH

    L33

    L33

    L33

    L33

    K91

    5-G

    N-1

    8

    308-

    YL-

    18

    L19L3

    L25L4

    A51

    3-R

    D-1

    851

    1-B

    R-1

    8

    L31

    L4L25

    L3L19

    L20

    512-

    GN

    -18

    L20

    L25

    L3

    L4

    L4

    L3

    L2

    L19

    L20

    L25

    508-

    PU

    -18

    L2

    K997-BU-18

    K997-BU-18

    615-

    YL-

    18

    509-

    WH

    -18

    WIRES K911-PK & K912-GN TO BE TWISTED AROUNDEACH OTHER AT LEAST 1 TURN PER 25 mm.

    615-

    YL-

    18

    L27

    L26

    615-YL

    L27

    L26

    F771-OR-18F773-OR-18F774-WH-18F772-WH-18

    615-

    YL-

    18

    A769-GY-18

    152-

    BU

    -18

    615-

    YL-

    18

    A768-BU-18

    592-BU-18

    K906-GN-18

    108-BU

    615-

    YL-

    18

    185-YL-18

    L29

    L28

    WW 128-8938

    310-

    PU

    -18

    615-

    YL-

    18

    615-

    YL-

    18

    200-

    BK

    -18

    H

    ATCH STARTAID SW111-4784

    185-YL-18

    L5

    LOWERWIPER SW111-4785

    LOWERWASHER SW111-4786

    H

    L11

    FINESWING CONT SW111-4788

    HH

    BACKUP EPR VALVE SW114-0421

    H HBACKUPGOV SW110-7884

    H

    200-

    BK

    -18

    200-

    BK

    200-

    BK

    200-

    BK

    200-

    BK

    -14

    200-BK

    RH

    SP

    KR

    (-)

    RH

    SP

    KR

    (+)

    LH S

    PK

    R (

    -)

    A 135-6086 C-2

    LH S

    PK

    R (

    +)

    65342187

    L8

    152-

    BU

    L6

    108-

    BU

    120-

    YL

    616-BU200-BK

    103-

    RD

    -18

    118-

    GY

    A57

    9-O

    R

    F

    615-

    YL

    615-

    YL

    200-

    BK

    -14

    386-

    PK

    -18

    306-

    GN

    -18

    491-

    PK

    -18

    487-

    OR

    -18

    496-

    WH

    -18

    200-

    BK

    -18

    386-PK-18

    306-GN-18 491-PK-18

    200-BK-18200-BK-18

    616-BU

    A57

    2-P

    KA

    571-

    PU

    180-

    GN

    615-

    YL

    607-PK

    322-GY

    200-BK

    200-BK

    H

    M 130-2211 G-1

    AE

    200-BK

    615-

    YL

    A57

    9-O

    R11

    8-G

    Y

    322-GY

    F

    615-YL

    120-YL

    118-GY

    A513-RD-18C538-OR-18

    129-BUC537-GN-18

    C538-OR-18

    N 129-8144 G-1

    200-BK

    C537-GN-18

    5

    322-GY

    616-BU

    118-GY108-BU

    129-BU

    A579-OR

    A513-RD-18615-YL

    120-YL

    592-BU-18

    A579-ORF

    A

    200-BK616-BU

    322-GY

    CO

    NV

    (M

    EM

    )

    OPERATOR STATION

    322-GY607-PK

    200-BK-18103-RD-18

    118-GYA579-OR

    A579-OR

    200-BK607-PK607-PK200-BK

    AE

    L8

    201-BK-18

    3

    14

    2

    B

    103-

    RD

    -18

    120-

    YL

    200-BK

    K

    B

    2

    AC41

    200-

    BK

    -18

    961-

    GN

    -18

    3L5

    L7L6

    CAB

    306-GN-18

    AC

    AC

    200-BK

    L9

    K905-RD-18K905-RD-18

    A

    E

    L7

    L6 L7

    L1

    AC 138-4282 A-2AE 132-1973 A-3

    NOTE D : USE WITH FALLING OBJECT GUARD.

    B

    L1

    K90

    5-R

    D-1

    8

    AC

    ATCHBOOM LAMP5I-8250

    L20

    CHASSIS

    G (NOTE B)

    AB 121-1044 A-6

    HORN7T-0970200-BK

    G (NOTE B)K

    607-PK

    KG (NOTE B)

    200-BK 200-BK-18616-BU-18

    200-BK-18616-BU-18

    200-BK200-BK

    113-OR-18

    322-GY 607-PK

    L2

    L3

    UU 111-4826

    CHASSISLAMP5I-8251

    ATCHBOOM LAMP5I-8250

    322-GY

    L6

    NOTE A : NORMALLY OPEN BEFORE REFRIGERANT CHARGE.

    L7

    607-PK607-PK

    21

    L7

    HORN7T-0969

    L6

    THIS SCHEMATIC IS FOR THE 325B-HYD EXCAVATOR.(116-0177 CH04)

    ELECTRICAL CONNECTIONTO MACHINE STRUCTURE

    506-

    PU

    -18

    506-PU-18

    508-PU-18

    K905-RD-18

    CONN 10 CONN 11

    CONN 12

    CONN 13

    CONN 31

    CONN 32

    CONN 33

    CONN 30

    CONN 34

    F-8G-7F-8F-8F-8F-8I-8

    A-8I-8I-8A-8 (NOTE C)H-8 (NOTE C)H-8 (NOTE C)A-9F-8F-8

    113-

    OR

    -18

    L909-BU-18L908-OR-18

    235-BK-18

    AC B

    L908

    -OR

    -18

    L909

    -BU

    -18

    235

    -BK

    -18

    L909-BU-18L908-OR-18

    235-BK-18

    L909-BU-18L908-OR-18

    235-BK-18

    L909-BU-18L908-OR-18

    235-BK-18

    235-

    BK

    -18

    235-

    BK

    -18

    K91

    2-G

    N-1

    8K

    911-

    PK

    -18

    403-

    GN

    -18

    487-

    OR

    -18

    A76

    1-P

    U-1

    8K

    904-

    GN

    -18

    496-

    WH

    -18

    430-

    BU

    -18

    495-

    GN

    -18

    491-

    PK

    -18

    492-

    GY-

    1840

    5-G

    Y-18

    321-

    BR

    -18

    C46

    8-B

    U-1

    841

    2-B

    U-1

    876

    3-B

    U-1

    8A

    762-

    PU

    -18

    788-

    YL-

    18

    L971

    -GN

    -18

    L975

    -PK

    -18

    L977

    -YL-

    18L9

    74-G

    N-1

    8L9

    78-G

    Y-18

    K99

    7-B

    U-1

    8

    K99

    7-B

    U-1

    8

    K99

    7-B

    U-1

    8

    615-

    YL

    615-

    YL

    L970

    -GY-

    18

    306-

    GN

    -18

    A77

    1-P

    U-1

    8

    235-

    BK

    -14 L2

    GROUNDSTRAP132-1805

    WIRES L908-OR & L909-BU TO BE TWISTED AROUNDEACH OTHER AT LEAST 1 TURN PER 25 mm.

    F

    A

    A