CONTROLES DE MOTOR 3408E/3412

-1- CONTROLES DE MOTOR 3408E/3412 HYDRAULIC ELECTRONIC UNIT INJECTION (HEUI) 1997 Caterpillar Inc.

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-3- SISTEMA DE COMBUSTIBLE HEUI 3408E/3412E AL SISTEMA DE LUBRICACION HEUI FILTRO DE ACEITE RESERVORIO DE ACEITE ARRAQUE EN FRIO GRUPO DE BOMBA DE SUMINISTRO DE ACEITE SENSOR DE TEMPERATURA DE ACEITE SENSOR DE PRESION DE ACEITE CIRCUITO COOL DOWN SENSOR TEMPERATURA DE COMBUST. FLUID MANIFOLD HYDRAULIC PASSAGE FLUID MANIFOLD HYDRAULIC PASSAGE SENSOR DE PRESION DE ACEITE ENFRIADOR DE ACEITE BOMBA DE LUBRICACION VALVULA DE CONTROL DE BOMBA BOMBA DE TRANSFERENCIA DE COMBUST. FILTRO PRIMARIO Y SEPARADOR DE AGUA DE PETROLEO ECM FILTRO SECUNDARIO DE COMBUST. HEUI VALVULA REGULADORA DE PRESION SUMIDERO DE ACEITE TANQUE DE COMBUSTIBLE

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Material de Estudiante VALVULA DE CONTROL DE LA BOMBA SENSOR DE PRESION DE ACEITE SENSOR PRIMARIO DE SPEED/TIMING SENSOR SECUNDARIO DE SPEED/TIMING SENSOR DE TEMP DE REFRIGERANTE SENSOR DE PRESION A LA SALIDA DEL TURBO SENSOR DE PRESION ATMOSF. SENSOR DE PRESION DE ACEITE SENSOR DE TEMPERATURA DE ACEITE 8 O 12 INYECTORES HARNESS DE MOTOR ACCESO AL SENSOR DE SERVICIO TDC ADEM II MODULO DE CONTROL ELECTRONICO PERNO DE (ECM) TIERRA HARNESS DE MAQUINA CONECTOR DE INTERFACE A LA MAQUINA SENSOR DE ACELERADOR 15 AMP BREAKER FAN SPEED SENSOR CAT DATA LINK SISTEMA3408E/3412E HEUI DIAGRAMA DE COMPONENTES SWITCH DE DESCONEXION RELE PRINCIPAL KEY SWITCH PEDAL DE ACELERADOR VENTILADOR HERRAMIENTA DE SERV. ELECTRONICO CONTROL DE TRANSMISION EPTC II CONTROL DE AUTO RETARDADOR 24 V SWITCHESS DE ACELERADOR DE RESPALDO, DE HABILITACION DE BAJA EN VACIO ELEVADO,Y SWITCH DE APAGADO A NIVEL DE PISO SENSOR DE PRESION INGRESO AL TURBO VALVVULA DE CONTROL DE VENTILADOR SENSOR DE TEMP.DE COMBUSTIBLE SWITCH DE FLUJO DE REFRIGERANTE PANELDE INSTRUMENTOS

SISTEMA DE CONTROL ELECTRONICO -19 -

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-23 - METODOS PARA PROBAR INYECTORES HEUI PRUEBA DE SOLENOIDES DE INYECTOR CORTE DE CILINDROS PRUEBA AUTOMATICA DE INYECTORES

-24 - LOGICA DE CONTROL HEUI CONTROL DE SINCRONIZACION VELOCIDAD DE MOTOR CANTIDAD DE COMB. COMB. RPM TEMPERATURA ACEITE SINCRONIZ. MODO FRIO GRADOS BTDC SELECC. SINCRONIZ. SINCRONIZ. DESEADA BTDC CONVIERTE A SINCRONIZ. DESEADA FORMA DE ONDA DE LA SINCRONIZ. DE LA INYECCION

Material del Estudiante GOBERNADOR ELECTRONICO 3408E/3412E A LA VALVULA DE CONTROL DE BOMBA SEÑALES A LOS INYECTORES DE COMBUSTIBLE 8 7 6 5 4 3 2 1 SEÑAL DE SPEED/TIMING CONTROL DE ACTUACION DE INYECCION CONTROL INYECCION COMBUST. RPM DE MOTOR TDC RPM DE MOTOR SHUTDOWNS GOBERNADOR ELECTRONICO MAPAS FRC SENSORES DE PRESION Y DE TEMP. DE ACEITE MAPAS TORQUE SENSORES DE PRESION ATMOSFERICA Y DE RUEDA DE SALIDA DEL TURBO SINCRONIZACION LOGICA DE CONTROL DE MOTOR ECM RPM DE MOTOR ACELERADOR SENSORES DE SPEED/TIMING

Material del Estudiante VALVULA DE CONTROL DE LA BOMBA SENSOR DE PRESION DE ACEITE SENSOR PRIMARIO DE SPEED/TIMING 8 O 12 INYECTORES HARNESS DE MOTOR TDC SERVICE PROBE ACCESS ADEM II MODULO DE CONTROL ELECTRONICO PERNO DE (ECM) TIERRA HARNESS DE MAQUINA CONECTOR DE INTERFACE A LA MAQUINA SENSOR DE ACELERADOR SISTEMA3408E/3412E HEUI DIAGRAMA DE COMPONENTES 15 AMP BREAKER SWITCH DE DESCONEXION RELE PRINCIPAL KEY SWITCH PEDAL DE ACELERADOR 24 V SENSOR SECUNDARIO DE SPEED/TIMING SWITCHESS DE ACELERADOR DE RESPALDO, DE HABILITACION DE BAJA EN VACIO ELEVADO,Y SWITCH DE APAGADO A NIVEL DE PISO SENSOR DE TEMP DE REFRIGERANTE SENSOR DE PRESION INGRESO AL TURBO SENSOR DE PRESION A LA SALIDA DEL TURBO SENSOR DE PRESION ATMOSF. FAN SPEED SENSOR CAT DATA LINK VALVVULA DE CONTROL DE VENTILADOR VENTILADOR SENSOR DE PRESION DE ACEITE HERRAMIENTA DE SERV. ELECTRONICO SENSOR DE TEMPERATURA DE ACEITE CONTROL DE TRANSMISION EPTC II CONTROL DE AUTO RETARDADOR SENSOR DE TEMP.DE COMBUSTIBLE SWITCH DE FLUJO DE REFRIGERANTE PANELDE INSTRUMENTOS

-27 - SENSOR SPEED/TIMING SECUNDARIO P44 J44 SENSORES DE SPEED/TIMING OR BK WH A B C P2 J2 SENSOR SPEED/TIMING PRIMARIO OR BK WH P20 J20 A B C 732-PK 996-GN 998-BR 999-WH F723-PK F724-PU 39 32 29 38 18 12 ECM (3408E/3412 E) VELOCIDAD SECUNDARIA DE MOTOR +V SINCRONIZACION RETORNO DIGITAL VELOCIDAD PRIMARIA DE MOTOR CAL DE TIMING + CAL DE TIMING - CONECTOR DE CALIBRACION DE SINCRONIZACION P26 1 2 P1 J1

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RUEDA DE SINCRONIZACION -29 - SENSOR SPEED/TIMING SECUNDARIO TDC 3 REF TDC 4 REF TDC 8 DIENTE 50/50 REF TDC CILINDRO No. 1 SENSOR SPEED/TIMING PRIMARIO REF 6 1 RANGO DE CALIBRACION DE SINCRONIZACION RANGO ± 10 TDC REF ROTACION DE LA RUEDA DE SINCRONIZACION REF 5 2 TDC TDC REF 7 TDC REF

80/20 % 80/20 % 80/20 % 80/20 % 80/20 % 80/20 % 50/50% -30 - ARRANQUE TABLA DE DIENTES DE ENGRANAJE DE SINCRONIZACION ENTRADA A TABLA A B C D E F G H PORCENTAJE PWM 80 % 80 % 80 % 80 % 80 % 80 % 80 % 50 % CILINDRO DE REFERENCIA NINGUNO IDENTIFICADO A B C D E F G H ROTACION DE LA RUEDA DE SINCRONIZACION

-31 - DESPUES DE RECONOCER EL PATRON TABLA DE DIENTES DE ENGRANAJE DE SINCRONIZACION ENTRADA A TABLA A B C D E F G H PORCENTAJE CILINDRO PWM DE REFERENCIA 80 % 80 % 80 % 80 % 80 % 80 % 80 % 50 % NO CIL NO. 3 NO NO CIL NO. 4 NO NO CIL NO. 8 ROTACION DE LA RUEDA DE SINCRONIZACION A B C D E F G H CIL NO. 3 BORDE DE REFERENCIA CIL NO. 3 TDC CIL NO. 4 BORDE DE REFERENCIA CIL NO. 4 TDC CIL NO. 8 BORDE DE REFERENCIA

-32 - TABLA DE DIENTES DE ENGRANAJE DE SINCRONIZACION ENTRADA A TABLA A B C D E F G H PORCENTAJE CILINDRO PWM DE REFERENCIA 80 % 80 % 80 % 80 % 80 % 80 % 80 % 50 % NO CIL NO. 3 NO NO CIL NO. 4 NO NO CIL NO. 8 OPERACION NORMAL ROTACION DE LA RUEDA DE SINCRONIZACION A B C D E F G H 62 BTDC (EEPROM) 62 BTDC (EEPROM) SINC. DESEADA SINC. DESEADA CIL NO. 3 (REFERENCIA) DEMORA NO 3 INYECCION CIL NO. 3 ACTUAL TDC (CALIBRADO) TDC ASUMIDO DEMORA CIL NO. 4 (REFERENCIA) NO. 4 INYECCION CIL NO. 4 ACTUAL TDC (CALIBRATO) TDC ASUMIDO

-33 - SECONDARY SPEED/TIMING SENSOR SENSOR DE CALIBRACION DE SINCRONIZACION OR BK WH P44 J44 A B C P2 J2 PRIMARY SPEED/TIMING SENSOR OR BK WH P20 J20 A B C 732-PK 996-GN 998-BR 999-WH F723-PK F724-PU 39 32 29 38 18 12 ECM (3408E/3412E) SECONDARY ENGINE SPEED +V TIMING DIGITAL RETURN PRIMARY ENGINE SPEED TIMING CAL + TIMING CAL - SENSOR DE CALIBRACION DE SINCRONIZACION P26 1 2 P1 J1 TIMING CALIBRATION CONNECTOR

-34 - CALIBRACION DE SINCRONIZACION RUEDA DE SINCRONIZACION DISTANCIA DE BORDE DE REFERENCIA AL TDC BORDE DE REFERENCIA CIL. NO. 1 TDC ASUMIDO CIL. NO. 1 TDC ACTUAL SEÑAL DEL SENSOR DE CALIBRACION DE SINCRONIZACION -10 ± 10 +10 TIMING REFERENCE OFFSET MAXIMUM TIMING REFERENCE OFFSET ± 10 DEGREES

-35 - FORMA DE ONDA DE LA CORRIENTE DE INYECCION UN CICLO CURRENT FLOW CORRIENTE PICO DE ACCIONAMIENTO CORRIENTE PICO DE SOSTENIMIENTO 0 1 2 3 4 5 TIEMPO (MILISEGUNDOS)

MOVIMIENTO DE LA VALVULA POPPET -36 - POPPET LIFT CURRENT FLOW CORRIENTE 0 1 2 3 4 TIEMPO (MILISEGUNDOS) 5

FORMA DE ONDA Y CARACTERISTICAS DE RESPUESTA -37 - RAPIDEZ DE INYECCION POPPET LIFT CURRENT FLOW CORRIENTE FIN DE INYECCION INICIO DE LA INYECCION DURACION 0 1 2 3 4 TIEMPO (MILISEGUNDOS) 5

-38 - LIMITES DEL SISTEMA DE COMBUSTIBLE Potencia Maxima MaximoTorque Relacion aire/combustible Limite de modo en frio Combustible en el arranque

-39 - MODOS EN FRIO DEL SISTEMA DE COMBUSTIBLE Control de velocidad Limitacion de combustible Sincronizacion de la inyeccion Presion de actuacion de inyeccion Inyeccion de eter

-40 - DERATEOS DEL SISTEMA DE COMBUSTIBLE Compensacion automatica por altura Compensacion automatica por filtro Advertencia de derateo de motor

-41 - SISTEMA DE INYECCION DE COMBUSTIBLE

-42- SISTEMA DE COMBUSTIBLE HEUI 3408E/3412E AL SISTEMA DE LUBRICACION HEUI FILTRO DE ACEITE RESERVORIO DE ACEITE ARRANQUE EN FRIO GRUPO DE BOMBA DE SUMINISTRO DE ACEITE SENSOR DE TEMPERATURA DE ACEITE SENSOR DE PRESION DE ACEITE CIRCUITO COOL DOWN SENSOR TEMPERATURA DE COMBUST. FLUID MANIFOLD HYDRAULIC PASSAGE FLUID MANIFOLD HYDRAULIC PASSAGE SENSOR DE PRESION DE ACEITE ENFRIADOR DE ACEITE BOMBA DE LUBRICACION VALVULA DE CONTROL DE BOMBA BOMBA DE TRANSFERENCIA DE COMBUST. FILTRO PRIMARIO Y SEPARADOR DE AGUA DE PETROLEO ECM FILTRO SECUNDARIO DE COMBUST. HEUI VALVULA REGULADORA DE PRESION SUMIDERO DE ACEITE TANQUE DE COMBUSTIBLE

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-45 - FILTRO DE ACEITE SISTEMA DE COMBUSTIBLE HEUI 3408E/3412E SUMINISTRO DE BAJA PRESION DE ACEITE AL SISTEMA DE LUBRICACION RESERVORIO DE ACEITE ARRANQUE EN FRIO GRUPO DE BOMBA DE SUMINISTRO DE ACEITE SENSOR DE TEMPERATURA DE ACEITE SENSOR DE PRESION DE ACEITE COOL DOWN CIRCUIT SENSOR TEMPERATURA DE COMBUST. HEUI FLUID MANIFOLD HYDRAULIC PASSAGE FLUID MANIFOLD HYDRAULIC PASSAGE SENSOR DE PRESION DE ACEITE ENFRIADOR DE ACEITE VALVULA DE CONTROL DE BOMBA ECM HEUI BOMBA DE LUBRICACION BOMBA DE TRANSFERENCIA DE COMBUST. FILTRO PRIMARIO Y SEPARADOR DE AGUA DE PETROLEO FILTRO SECUNDARIO DE COMBUST. VALVULA REGULADORA DE PRESION OIL SUMP TANQUE DE COMBUSTIBLE

-46 - AL SISTEMA DE LUBRICACION SISTEMA DE COMBUSTIBLE HEUI 3408E/3412E RESERVORIO DE ACEITE ARRANQUE EN FRIO ACEITE A ALTA PRESION SENSOR DE TEMPERATURA DE ACEITE SENSOR DE PRESION DE ACEITE HEUI FLUID MANIFOLD HYDRAULIC PASSAGE FILTRO DE ACEITE GRUPO DE BOMBA DE SUMINISTRO DE ACEITE COOL DOWN CIRCUIT SENSOR TEMPERATURA DE COMBUST. FLUID MANIFOLD HYDRAULIC PASSAGE SENSOR DE PRESION DE ACEITE ENFRIADOR DE ACEITE VALVULA DE CONTROL DE BOMBA ECM HEUI BOMBA DE LUBRICACION BOMBA DE TRANSFERENCIA DE COMBUST. FILTRO PRIMARIO Y SEPARADOR DE AGUA DE PETROLEO FILTRO SECUNDARIO DE COMBUST. VALVULA REGULADORA DE PRESION SUMIDERO DE ACEITE TANQUE DE COMBUSTIBLE

-47 - FILTRO DE ACEITE AL SISTEMA SUMINISTRO DE PETROLEO A BAJA PRESION DE LUBRICACION COLD START OIL RESERVOIR HYDRAULIC SUPPLY PUMP GROUP 3408E/3412E HEUI FUEL SYSTEM HYDRAULIC TEMPERATURE SENSOR OIL PRESSURE SENSOR COOL DOWN CIRCUIT SENSOR TEMPERATURA DE COMBUST. HEUI FLUID MANIFOLD HYDRAULIC PASSAGE FLUID MANIFOLD HYDRAULIC PASSAGE SENSOR DE PRESION DE ACEITE ENFRIADOR DE ACEITE VALVULA DE CONTROL DE BOMBA ECM HEUI BOMBA DE LUBRICACION BOMBA DE TRANSFERENCIA DE COMBUST. FILTRO PRIMARIO Y SEPARADOR DE AGUA DE PETROLEO FILTRO SECUNDARIO (2 MICRON) VALVULA REGULADORA DE PRESION SUMIDERO DE ACEITE TANQUE DE COMBUSTIBLE

FLUJO DE FLUIDO POR LOS INYECTORES ACEITE A ALTA PRESION ADAPTADOR PARA INYECCION DE ACEITE ABRAZADERA DEL INYECTOR JUMPER INYECTOR ROCKER ARM BASE PASAJE DE ACEITE DE LUBRICACION PASAJE DE ACEITE A ALTA PRESION MANIFOLD DE SUMINISTRO DE FLUIDO MANGUITO DE INYECTOR EN LA CULATA CULATA SUMINISTRO DE COMBUSTIBLE A BAJA PRESION REFRIGERANTE ARANDELA DE METAL BLOQUE DE CILINDROS

-49 - SUMINISTRO DE COMBUSTIBLE AL INYECTOR INYECTOR SELLO O RING SUPERIOR DEL INYECTOR SELLO O RING SUPERIOR DEL MANGUITO CAMISETA DEL INYECTOR LADO DE CULATA MANIFOLD DE SUMINISTRO DE FLUIDO SELLO O RING INFERIOR DE MANGUITO UMINISTRO DE COMBUSTIBLE A BAJA PRESION CULATA SELLO O RING INFERIOR DEL INYECTOR CONTACTO METAL A METAL

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-51 - MANIFOLD DE SUMINISTRO DE COMBUSTIBLE SELLOS DE COMBUSTIBLE MANGUITO DE INYECTOR, CULATA BASE DE BALANCIN PASAJE DE SUMINISTRO RANURAS DE DE COMBUSTIBLE A BAJA PRESION EXTRACCION PASAJE DE ACEITE DE LUBRICACION PASAJE HIDRAULICO DE ALTA PRESION

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FORMA DE ONDA DE LA CORRIENTE DE INYECCION UN CICLO -53 - CURRENT FLOW CORRIENTE PICO INICIAL CORRIENTE DE SOSTENIMIENTO 0 1 2 3 4 5 TIEMPO (MILSEGUNDOS

CARACTERISTICAS DE LA ONDA Y RESPUESTA -54 - APERTURA DE VALVULA INYECCION RATE CURRENT FLOW CORRIENTE DURACION 0 1 2 3 4 INICIO DE INYECCION TIME (MILLISECONDS) 5 FIN DE INYECCION

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- GRUPO DE CUERPO DE VALVULA GRUPO DE BARRIL UNIDAD INYECTORA HEUI 3 GRUPOS PRINCIPALES GRUPO DE BOQUILLA

- 57-3408E/3412E HEUI INJECTOR COMPONENTS BODY VALVE BODY GROUP ADAPTER BOLT ARMATURE SOLENOID ASSEMBLY POPPET SPRING SLEEVE SHIM SEAL SPACER SCREW SCREW SEAL INTENSIFIER PISTON RETAINER RING BARREL GROUP WASHER NOZZLE GROUP DOWEL BALL DOWEL LIFT SPACER DOWEL TIP CASE PLUNGER SPRING SEAL BARREL BALL STOP PLATE CHECK PLATE STOP STOP PIN SPRING SLEEVE CHECK

- MANGUITO ESPACIADOR ARMADURA VALVULA CUERPO DE VALVULA BARRIL ADAPTADOR SOLENOIDE LAINA PISTON ARANDELA UNIT INJECTOR COMPONENTS SELLO SUPERIOR DE COMBUSTIBLE VARILLA (PLUNGER) VALVULA CHECK DE INGRESO DE COMBUSTIBLE PIN ESPACIADOR MANGUITO SELLO INFERIOR DE COMBUSTIBLE CHECK BOQUILLA

- 59 - ALLEN SCREWS INJECTOR INSTALLATION HORIZONTAL BOLTS INJECTOR CLAMP INJECTOR OIL ADAPTOR JUMPER TUBE VERTICAL BOLTS

- 60 - VALVE BODY GROUP SOLENOID DE-ENERGIZED POPPET VALVE CLOSED SOLENOID ENERGIZED POPPET VALVE OPEN POPPET VALVE SOLENOID ARMATURE INLET VALVE SEAT EXHAUST VALVE SEAT POPPET SPRING ARMATURE SCREW

- 61 - SUPPLY OIL INTENSIFIER PISTON BARREL GROUP FUEL PRESSURE INCREASE BARREL PLUNGER FUEL INLET CHECK VALVE REVERSE FLOW CHECK VALVE FUEL FROM TRANSFER PUMP FUEL TO NOZZLE

- 62 - NOZZLE GROUP REVERSE FLOW CHECK VALVE VIEW OF STOP PLATE & REVERSE FLOW CHECK VALVE CHECK VALVE FUEL ATOMIZATION

VALVE BODY GROUP SOLENOID DE-ENERGIZED - 63 - POPPET VALVE SOLENOID ARMATURE INLET VALVE SEAT EXHAUST VALVE SEAT

- 64 - SLEEVE VALVE SPACER ARMATURE BODY BARREL ADAPTER SOLENOID SHIM PISTON WASHER UNIT INJECTOR END OF INJECTION PLUNGER BALL PIN SPACER SLEEVE CHECK NOZZLE

- 65 - BARREL PISTON WASHER BARREL GROUP REFILLING THE BARREL PLUNGER FUEL INLET CHECK VALVE FUEL EDGE FILTER SPACER PIN SLEEVE NOZZLE CHECK VALVE NOZZLE

- 66 - FUEL INLET CHECK VALVE EDGE FILTER REVERSE FLOW CHECK VALVE FUEL INLET FUEL INLET EDGE FILTER

- 67 - PRIME INJECTION RATE SHAPING PRIME = PRE-INJECTION METERING INJECTION RATE START OF INJECTION DURATION 0 1 2 3 4 TIME (MILLISECONDS) 5

- 68 - OIL FLOW BARREL GROUP PRIME RATE SHAPING BARREL PLUNGER PRIME RATE SHAPING PASSAGE SPILL PORT CROSS SECTION OF PLUNGER FUEL TO NOZZLE GROUP START OF INJECTION PRESSURE DROP FINAL PRESSURE INCREASE

- 69 - INTENSIFIER PISTON INTENSIFIER PISTON SEAL BARREL BARREL GROUP VENTING INTERNAL LEAKS VENTING CHECK VALVE

- 70 - FUEL INLET CHECK VALVE BARREL GROUP INJECTOR CHECK VALVES VENTING CHECK VALVE NOZZLE GROUP REVERSE FLOW CHECK VALVE NOZZLE CHECK VALVE FUEL ATOMIZATION

CONTROL DE PRESION HIDRAULICA DE INYECCION INJECTION PRESSURE HEUI SISTEMA DE COMBUSTIBLE ACCIONADO MECANICAMENTE VACIO TORQUE PICO RATEADO VELOCIDAD DE MOTOR

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PUERTO DE CEBADO VALVULA COMPENSADORA BOMBA HEUI ORIFICIO AL DRENAJE RESERVORIO BASE DE LA VALVULA BOMBA DE TRANSFERENCIA PLATO BASCULANTE

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- 77 - TO LUBE SYSTEM DRAIN OIL FILTER COOL DOWN BYPASS CIRCUIT.020 IN. ORIFICE COLD START OIL RESERVOIR HYDRAULIC SUPPLY PUMP GROUP HYDRAULIC TEMPERATURE SENSOR OIL PRESSURE SENSOR COOL DOWN CIRCUIT HEUI FLUID MANIFOLD HYDRAULIC PASSAGE FUEL TEMPERATURE SENSOR FLUID MANIFOLD HYDRAULIC PASSAGE HYDRAULIC PRESSURE SENSOR OIL COOLER PUMP CONTROL VALVE ECM HEUI LUBE OIL PUMP FUEL TRANSFER PUMP PRIMARY FUEL FILTER WATER SEPARATOR SECONDARY FUEL FILTER PRESSURE REGULATING VALVE OIL SUMP FUEL TANK

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- 79 - REVERSE FLOW CHECK VALVE SEAT (END VIEW) TO INJECTORS FROM PUMP FITTING VALVE BLOCK SPRING CHECK SEAT

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- 82 - TO LUBE SYSTEM OIL FILTER 3408E/3412E HEUI FUEL SYSTEM HYDRAULIC SYSTEM OPERATION COLD START OIL RESERVOIR HYDRAULIC SUPPLY PUMP GROUP HYDRAULIC TEMPERATURE SENSOR OIL PRESSURE SENSOR COOL DOWN CIRCUIT HEUI FLUID MANIFOLD HYDRAULIC PASSAGE FUEL TEMPERATURE SENSOR HYDRAULIC PRESSURE SENSOR FLUID MANIFOLD HYDRAULIC PASSAGE OIL COOLER LUBE OIL PUMP PUMP CONTROL VALVE FUEL TRANSFER PUMP PRIMARY FUEL FILTER ECM SECONDARY FUEL FILTER HEUI PRESSURE REGULATING VALVE OIL SUMP FUEL TANK

SISTEMA DE CONTROL HIDRAULICO HEUI ARRANQUE AL SISTEMA LUBRICACION DE RESERVORIO DE ARRANQUE EN FRIO PISTON DE CONTROL DE DESPLAZAMIENTO AL MANIFOLD IZQUIERDO AL MANIFOLD DERECHO BOMBA DE SUMINISTRO VALVULA CHECK CARRETE LIMITADOR DE PRESION SOLENOID (ENERGIZED) CARRETE SENSADO DE CARGA SUMIDERO DE ACEITE VALVULA DE CONTROL DE BOMBA DRENAJE DE CARCAZA DE BOMBA

CONJUNTO DE COMPENSADOR ARRANQUE CARRETE LIMITADOR DE PRESION ORIFICIO VALVULA DE CONTROL DE BOMBA CARRETE DE SENSADO DE CARGA VALVULA CHECK DEL PISTON DE CONTROL DE DESPLAZAMIENTO ORIFICIO DE DRENAJE AL DRENAJE DE CARCAZA AL DRENAJE DE LA CARCAZA VALVULAS CHECK DE FLUJO EN REVERSA

- 85 - TO LUBE SYSTEM COLD START RESERVIOR HEUI HYDRAULIC CONTROL SYSTEM DESTROKE DISPLACEMENT CONTROL PISTON TO LEFT OIL MANIFOLD TO RIGHT OIL MANIFOLD SUPPLY PUMP CHECK VALVE PRESSURE LIMITER SPOOL SOLENOID (DE-ENERGIZED) LOAD SENSING SPOOL OIL SUMP PUMP CONTROL VALVE PUMP CASE DRAIN

- 86 - COMPENSATOR ASSEMBLY DESTROKE PRESSURE LIMITER SPOOL PUMP CONTROL VALVE ORIFICE LOAD SENSING SPOOL CHECK VALVE DRAIN ORIFICE TO DISPLACEMENT CONTROL PISTON TO CASE DRAIN

- 87 - HEUI HYDRAULIC CONTROL SYSTEM UPSTROKE TO LUBE SYSTEM COLD START RESERVIOR DISPLACEMENT CONTROL PISTON TO LEFT OIL MANIFOLD TO RIGHT OIL MANIFOLD SUPPLY PUMP CHECK VALVE PRESSURE LIMITER SPOOL SOLENOID (ENERGIZED) LOAD SENSING SPOOL OIL SUMP PUMP CONTROL VALVE PUMP CASE DRAIN

- 88 - COMPENSATOR ASSEMBLY UPSTROKE PRESSURE LIMITER SPOOL PUMP CONTROL VALVE ORIFICE LOAD SENSING SPOOL CHECK VALVE DRAIN ORIFICE TO CASE DRAIN FROM DISPLACEMENT CONTROL PISTON

- 89 - TO LUBE SYSTEM COLD START RESERVIOR HEUI HYDRAULIC CONTROL SYSTEM PRESSURE LIMITER OPERATION DISPLACEMENT CONTROL PISTON TO LEFT OIL MANIFOLD TO RIGHT OIL MANIFOLD SUPPLY PUMP PRESSURE LIMITER SPOOL PLUGGED ORIFICE SOLENOID (DE-ENERGIZED) LOAD SENSING SPOOL OIL SUMP PUMP CONTROL VALVE PUMP CASE DRAIN

- 90 - PUMP CONTROL VALVE COMPENSATOR ASSEMBLY PRESSURE LIMITER OPERATION PRESSURE LIMITER SPOOL ORIFICE LOAD SENSING SPOOL CHECK VALVE PLUGGED ORIFICE TO DISPLACEMENT CONTROL PISTON DRAIN ORIFICE TO CASE DRAIN

- 91 - PUMP CONTROL VALVE NO CURRENT FLOW COIL ASSEMBLY POPPET VALVE ADAPTER SEAL SEAT CAGE FROM LOAD SENSING SPOOL VALVE STOP STATOR EDGE FILTER SPRING RETAINER ARMATURE SOLENOID PIN SHELL RING TO CASE DRAIN VALVE BLOCK

-92 - CONJUNTO DE BOBINA VALVULA DE CONTROL DE BOMBA FLUJO ALTO DE CORRIENTE VALVULA POPPET ADAPTADOR SELLO ASIENTO DE LA VALVULA DE SENSADO DE JAULA CARGA DETENCION ESTATOR FILTRO DE BORDE RESORTE DE RETENCION ARMADURA BLOQUE DE SOLENOIDED PIN CORAZA O RING DRENAJE DE G CARCAZA VALVULA

- 93 - HEUI SYSTEM POWER SUPPLIES ECM: 24 VOLTS SPEED/TIMING SENSORS: 12.5 VOLTS INJECTORS: 105 VOLTS ANALOG SENSORS: 5 VOLTS DIGITAL SENSORS: 8 VOLTS PUMP CONTROL VALVE: 0 to 24 VOLTS

- 94-8 OR 12 INJECTORS ENGINE HARNESS ADEM II ELECTRONIC CONTROL MODULE (ECM) 3408E/3412E HEUI SYSTEM ECM POWER SUPPLY COMPONENTS GROUND BOLT DISCONNECT SWITCH PUMP CONTROL VALVE HYDRAULIC PRESSURE SENSOR PRIMARY SPEED/TIMING SENSOR TDC SERVICE PROBE ACCESS MACHINE HARNESS MACHINE INTERFACE CONNECTOR THROTTLE SENSOR 15 AMP BREAKER MAIN POWER RELAY KEY SWITCH ACCELERATOR PEDAL 24 V SECONDARY SPEED/TIMING SENSOR THROTTLE BACK-UP, ELEVATED LOW IDLE ENABLE, AND GROUND LEVEL SHUTDOWN (2) SWITCHES COOLANT TEMP. SENSOR TURBO INLET PRESSURE SENSOR TURBO OUTLET PRESS. SENSOR ATMOSPHERIC PRESS. SENSOR FAN SPEED SENSOR CAT DATA LINK FAN CONTROL VALVE FAN OIL PRESSURE SENSOR ELECTRONIC SERVICE TOOL HYDRAULIC TEMP. SENSOR EPTC II TRANSMISSION CONTROL AUTO RETARDER CONTROL FUEL TEMPERATURE SENSOR COOLANT FLOW SWITCH INSTRUMENT PANEL

CIRCUITO DE SUMINISTRO DE ENERGIA AL ECM BATTERIA (-) 24 VOLTIOS DC (+) SWITCH DE DESCONEXION PERNO A TIERRA EN EL MOTOR 15 A CIRCUIT BREAKER 113-OR 10 AMP 1 2 26 P3 J3 229-BK-14 229-BK-14 150-RD-14 150-RD-14 113-OR P1 J1 05 11 04 06 23 ECM (3408E/3412E) (-) BATTERIA (-) BATTERIA (+) BATTERIA (+) BATTERIA KEY SWITCH ON 112-PU 308-YL R 117-RD 105-RD 200-BK C S B OFF ON ST SWITCH DE ARRANQUE

SUMINISTRO DEPOTENCIA A LOS SENSORES DE VELOCIDAD 12.5 ± 1 VOLTS SENSOR SPEED/TIMING SECUNDARIO (LH) P44 J44 OR BK WH A B C P2 J2 SENSOR SPEED/TIMING PRIMARIO (RH) OR BK WH P20 J20 A B C 732-PK 996-GN 998-BR 999-WH F723-PK F724-PU 39 32 29 38 18 12 ECM (3408E/3412E) VELOC. SEC. DE MOTOR +V TIMING DIGITAL RETURN VELOC.PRIM DE MOTOR TIMING CAL + TIMING CAL - P1 J1

- 97 - SOLENOID 1 SOLENOID 3 J52/P52 1 2 3 4 INJECTOR WIRING SCHEMATIC A701-GY F726-YL A703-BR F726-YL P2 J2 16 05 32 ECM (3408/3412E) SOLENOID 1 POWER SOLENOID 1/3 RETURN SOLENOID 3 POWER J56/P56 SOLENOID 2 SOLENOID 4 1 2 3 4 A702-PU F727-BU A704-GN F727-BU 40 11 34 SOLENOID 2 POWER SOLENOID 2/4 RETURN SOLENOID 4 POWER J53/P53 SOLENOID 5 SOLENOID 7 1 2 3 4 A705-BU F728-BR A707-PU F728-BR 32 17 38 SOLENOID 5 POWER SOLENOID 5/7 RETURN SOLENOID 7 POWER J57/P57 SOLENOID 6 SOLENOID 8 1 2 3 4 A706-GY F729-GN A708-BR F729-GN 28 21 22 SOLENOID 6 POWER SOLENOID 6/8 RETURN SOLENOID 8 POWER J54/P54 SOLENOID 9 SOLENOID 11 1 2 3 4 A709-OR F730-GY A711-PU F730-GY 37 27 31 SOLENOID 9 POWER SOLENOID 9/11 RETURN SOLENOID 11 POWER J58/P58 SOLENOID 10 SOLENOID 12 1 2 3 4 A710-GY F731-OR A712-BR F731-OR 18 33 12 SOLENOID 10 POWER SOLENOID 10/12 RETURN SOLENOID 12 POWER

SENSOR DE TEMPERATURA REFRIGERANTE DE MOTOR +V ANALOG ANALOG RETURN SIGNAL J21 P21 A B C P1 J1 36 30 ECM (3408E/3412E HEUI) +V ANALOG SUPPLY ANALOG RETURN SENSOR DE PRESION ACEITE DE MOTOR +V ANALOG ANALOG RETURN SIGNAL P22 J22 A B C SENSOR DE PRESION SALIDA DEL TURBO SENSOR DE PRESION ENTRADA DEL TURBO SENSOR DE PRESION ATMOSFERICA +V ANALOG ANALOG RETURN SIGNAL +V ANALOG ANALOG RETURN SIGNAL +V ANALOG ANALOG RETURN SIGNAL P23 J23 A B C P25 J25 A B C P27 J27 A B C SUMINBISTRO DE ENERGIA SENSORES ANALOGOS 5 ± 0.2 VOLTS SENSOR DE PRESION DE ACEITE +V ANALOG ANALOG RETURN SIGNAL P45 J45 A B C +V ANALOG SENSOR DE TEMPERATURA ANALOG RETURN COMBUSTIBLE SIGNAL SENSOR DE TEMPERATURA DE ACEITE +V ANALOG ANALOG RETURN SIGNAL P43 J43 A B C P51 J51 A B C

- 99 - THROTTLE POSITION SENSOR +V DIGITAL DIGITAL RETURN SIGNAL J35 P35 A B C P1 J1 29 35 ECM (3408E/3412E HEUI) + V DIGITAL SUPPLY - V DIGITAL RETURN FAN SPEED SENSOR +V DIGITAL DIGITAL RETURN SIGNAL P84 J84 A B C DIGITAL SENSOR POWER SUPPLY 8 ± 0.5 VOLTS

- 100 PUMP CONTROL VALVE POWER SUPPLY 0 to 24 VOLTS PWM 0 to 800 mamps PUMP CONTROL VALVE SUPPLY RETURN J46 P46 A B P2 J2 29 35 ECM (3408E/3412E HEUI) + SUPPLY - RETURN

ELECTRONIC SENSORS AND SYSTEMS - 101

- 102 8 OR 12 INJECTORS ENGINE HARNESS ADEM II ELECTRONIC CONTROL MODULE (ECM) HEUI SYSTEM COMPONENT DIAGRAM GROUND BOLT DISCONNECT SWITCH MACHINE HARNESS MAIN 15 AMP POWER RELAY BREAKER KEY SWITCH 24 V PRIMARY SPEED/TIMING SENSOR SECONDARY SPEED/TIMING SENSOR TDC SERVICE PROBE ACCESS MACHINE INTERFACE CONNECTOR

- 103 ANALOG SENSORS Hydraulic pressure Coolant temperature Atmospheric pressure Turbocharger inlet pressure Turbocharger outlet pressure Lubrication oil pressure Hydraulic temperature Fuel temperature

- 104 8 OR 12 INJECTORS ENGINE HARNESS ADEM II ELECTRONIC CONTROL MODULE (ECM) HEUI SYSTEM COMPONENT DIAGRAM GROUND BOLT DISCONNECT SWITCH MACHINE HARNESS MAIN 15 AMP POWER RELAY BREAKER KEY SWITCH 24 V HYDRAULIC PRESSURE SENSOR PRIMARY SPEED/TIMING SENSOR SECONDARY SPEED/TIMING SENSOR TDC SERVICE PROBE ACCESS MACHINE INTERFACE CONNECTOR

- 105 8 OR 12 INJECTORS ENGINE HARNESS ADEM II ELECTRONIC CONTROL MODULE (ECM) HEUI SYSTEM COMPONENT DIAGRAM GROUND BOLT DISCONNECT SWITCH MACHINE HARNESS MAIN 15 AMP POWER RELAY BREAKER KEY SWITCH 24 V HYDRAULIC PRESSURE SENSOR PRIMARY SPEED/TIMING SENSOR SECONDARY SPEED/TIMING SENSOR TDC SERVICE PROBE ACCESS MACHINE INTERFACE CONNECTOR COOLANT TEMP. SENSOR

- 106 8 OR 12 INJECTORS ENGINE HARNESS ADEM II ELECTRONIC CONTROL MODULE (ECM) HEUI SYSTEM COMPONENT DIAGRAM GROUND BOLT DISCONNECT SWITCH MACHINE HARNESS MAIN 15 AMP POWER RELAY BREAKER KEY SWITCH 24 V HYDRAULIC PRESSURE SENSOR PRIMARY SPEED/TIMING SENSOR SECONDARY SPEED/TIMING SENSOR TDC SERVICE PROBE ACCESS MACHINE INTERFACE CONNECTOR COOLANT TEMP. SENSOR ATMOSPHERIC PRESS. SENSOR

- 107 ENGINE POWER DERATING MAP ACCORDING TO ATMOSPHERIC PRESSURE PERCENT OF FULL LOAD POWER 100% 98% 96% 94% 92% 90% 88% 86% 84% 82% 80% 78% 76% 74% 72% 7,500 8,210 8,920 9,630 10,340 11,050 11,760 12,470 13,180 13,890 14,600 15,310 16,020 16,730 17,440 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 ATMOSPHERIC PRESSURE IN kpa ALTITUDE IN FEET

- 108 8 OR 12 INJECTORS ENGINE HARNESS ADEM II ELECTRONIC CONTROL MODULE (ECM) HEUI SYSTEM COMPONENT DIAGRAM GROUND BOLT DISCONNECT SWITCH MACHINE HARNESS MAIN 15 AMP POWER RELAY BREAKER KEY SWITCH 24 V HYDRAULIC PRESSURE SENSOR PRIMARY SPEED/TIMING SENSOR SECONDARY SPEED/TIMING SENSOR TDC SERVICE PROBE ACCESS MACHINE INTERFACE CONNECTOR COOLANT TEMP. SENSOR TURBO INLET PRESSURE SENSOR ATMOSPHERIC PRESS. SENSOR

- 109 AUTOMATIC AIR FILTER COMPENSATION TURBOCHARGER INLET PRESSURE SENSOR ATMOSPHERIC PRESSURE SENSOR CAT Filter differential pressure calculated with formula: Atmospheric sensor pressure - Turbo sensor pressure = P Fuel limited 2% per 4 inches H 2 0 to max 20%

- 110 8 OR 12 INJECTORS ENGINE HARNESS ADEM II ELECTRONIC CONTROL MODULE (ECM) HEUI SYSTEM COMPONENT DIAGRAM GROUND BOLT DISCONNECT SWITCH MACHINE HARNESS MAIN 15 AMP POWER RELAY BREAKER KEY SWITCH 24 V HYDRAULIC PRESSURE SENSOR PRIMARY SPEED/TIMING SENSOR SECONDARY SPEED/TIMING SENSOR TDC SERVICE PROBE ACCESS MACHINE INTERFACE CONNECTOR COOLANT TEMP. SENSOR TURBO INLET PRESSURE SENSOR TURBO OUTLET PRESS. SENSOR ATMOSPHERIC PRESS. SENSOR

- 111 8 OR 12 INJECTORS ENGINE HARNESS ADEM II ELECTRONIC CONTROL MODULE (ECM) HEUI SYSTEM COMPONENT DIAGRAM GROUND BOLT DISCONNECT SWITCH MACHINE HARNESS MAIN 15 AMP POWER RELAY BREAKER KEY SWITCH 24 V HYDRAULIC PRESSURE SENSOR PRIMARY SPEED/TIMING SENSOR SECONDARY SPEED/TIMING SENSOR TDC SERVICE PROBE ACCESS MACHINE INTERFACE CONNECTOR COOLANT TEMP. SENSOR TURBO INLET PRESSURE SENSOR TURBO OUTLET PRESS. SENSOR ATMOSPHERIC PRESS. SENSOR OIL PRESSURE SENSOR

- 112 340 320 300 280 OIL PRESSURE MAP 49.3 46.4 43.5 40.6 OIL PRESSURE IN kpa 260 240 220 200 180 160 140 120 OIL PRESSURE IN PSI 37.7 34.8 31.9 29 26.1 23.2 20.3 17.4 100 14.5 80 11.6 60 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 8.7 2000 kpa x 0.145 = PSI ENGINE RPM

- 113 8 OR 12 INJECTORS ENGINE HARNESS ADEM II ELECTRONIC CONTROL MODULE (ECM) HEUI SYSTEM COMPONENT DIAGRAM GROUND BOLT DISCONNECT SWITCH MACHINE HARNESS MAIN 15 AMP POWER RELAY BREAKER KEY SWITCH 24 V HYDRAULIC PRESSURE SENSOR PRIMARY SPEED/TIMING SENSOR SECONDARY SPEED/TIMING SENSOR TDC SERVICE PROBE ACCESS MACHINE INTERFACE CONNECTOR COOLANT TEMP. SENSOR TURBO INLET PRESSURE SENSOR TURBO OUTLET (BOOST) PRESS. SENSOR ATMOSPHERIC PRESS. SENSOR OIL PRESSURE SENSOR HYDRAULIC TEMP. SENSOR

- 114 8 OR 12 INJECTORS ENGINE HARNESS ADEM II ELECTRONIC CONTROL MODULE (ECM) HEUI SYSTEM COMPONENT DIAGRAM GROUND BOLT DISCONNECT SWITCH MACHINE HARNESS MAIN 15 AMP POWER RELAY BREAKER KEY SWITCH 24 V HYDRAULIC PRESSURE SENSOR PRIMARY CAM SPEED/TIMING SENSOR TDC SERVICE PROBE ACCESS MACHINE INTERFACE CONNECTOR BACKUP CAM SPEED/TIMING SENSOR COOLANT TEMP. SENSOR TURBO INLET PRESSURE SENSOR TURBO OUTLET PRESS. SENSOR ATMOSPHERIC PRESS. SENSOR OIL PRESSURE SENSOR HYDRAULIC TEMP SENSOR FUEL TEMPERATURE SENSOR

- 115 8 OR 12 INJECTORS ENGINE HARNESS ADEM II ELECTRONIC CONTROL MODULE (ECM) HEUI SYSTEM COMPONENT DIAGRAM GROUND BOLT DISCONNECT SWITCH MACHINE HARNESS MAIN 15 AMP POWER RELAY BREAKER KEY SWITCH 24 V HYDRAULIC PRESSURE SENSOR PRIMARY SPEED/TIMING SENSOR SECONDARY SPEED/TIMING SENSOR TDC SERVICE PROBE ACCESS MACHINE INTERFACE CONNECTOR COOLANT TEMP. SENSOR TURBO INLET PRESSURE SENSOR TURBO OUTLET PRESS. SENSOR ATMOSPHERIC PRESS. SENSOR OIL PRESSURE SENSOR HYDRAULIC TEMP. SENSOR FUEL TEMPERATURE SENSOR COOLANT FLOW SWITCH

- 116 DIGITAL SENSORS AND CIRCUITS Throttle Position Pump Control Valve Signal Exhaust Temperature

- 117 8 OR 12 INJECTORS ENGINE HARNESS ADEM II ELECTRONIC CONTROL MODULE (ECM) HEUI SYSTEM COMPONENT DIAGRAM GROUND BOLT DISCONNECT SWITCH MACHINE HARNESS MAIN 15 AMP POWER RELAY BREAKER KEY SWITCH 24 V HYDRAULIC PRESSURE SENSOR PRIMARY SPEED/TIMING SENSOR TDC SERVICE PROBE ACCESS MACHINE INTERFACE CONNECTOR THROTTLE SENSOR ACCELERATOR PEDAL SECONDARY SPEED/TIMING SENSOR COOLANT TEMP. SENSOR TURBO INLET PRESSURE SENSOR TURBO OUTLET PRESS. SENSOR ATMOSPHERIC PRESS. SENSOR OIL PRESSURE SENSOR HYDRAULIC TEMP. SENSOR FUEL TEMPERATURE SENSOR COOLANT FLOW SWITCH

- 118 PULSE WIDTH MODULATED SIGNALS ON 10% DUTY CYCLE = 10% OFF ON 50% DUTY CYCLE = 50% OFF ON 90% 1 CYCLE DUTY CYCLE = 90% OFF DUTY CYCLE = PERCENT OF TIME ON VS PERCENT OF TIME OFF

- 119 8 OR 12 INJECTORS ENGINE HARNESS ADEM II ELECTRONIC CONTROL MODULE (ECM) HEUI SYSTEM COMPONENT DIAGRAM GROUND BOLT DISCONNECT SWITCH PUMP CONTROL VALVE MACHINE HARNESS MAIN 15 AMP POWER RELAY BREAKER KEY SWITCH 24 V HYDRAULIC PRESSURE SENSOR PRIMARY SPEED/TIMING SENSOR TDC SERVICE PROBE ACCESS MACHINE INTERFACE CONNECTOR THROTTLE SENSOR ACCELERATOR PEDAL SECONDARY SPEED/TIMING SENSOR COOLANT TEMP. SENSOR TURBO INLET PRESSURE SENSOR TURBO OUTLET PRESS. SENSOR ATMOSPHERIC PRESS. SENSOR OIL PRESSURE SENSOR HYDRAULIC TEMP. SENSOR FUEL TEMPERATURE SENSOR COOLANT FLOW SWITCH

- 120 8 OR 12 INJECTORS ENGINE HARNESS ADEM II ELECTRONIC CONTROL MODULE (ECM) HEUI SYSTEM COMPONENT DIAGRAM GROUND BOLT DISCONNECT SWITCH PUMP CONTROL VALVE MACHINE HARNESS MAIN 15 AMP POWER RELAY BREAKER KEY SWITCH 24 V HYDRAULIC PRESSURE SENSOR PRIMARY SPEED/TIMING SENSOR TDC SERVICE PROBE ACCESS MACHINE INTERFACE CONNECTOR THROTTLE SENSOR ACCELERATOR PEDAL SECONDARY SPEED/TIMING SENSOR THROTTLE BACK-UP, ELEVATED LOW IDLE ENABLE, AND GROUND LEVEL SHUTDOWN (2) SWITCHES COOLANT TEMP. SENSOR TURBO INLET PRESSURE SENSOR TURBO OUTLET PRESS. SENSOR ATMOSPHERIC PRESS. SENSOR OIL PRESSURE SENSOR HYDRAULIC TEMP. SENSOR FUEL TEMPERATURE SENSOR COOLANT FLOW SWITCH

- 121 USER DEFINED SHUTDOWN USER SHUTDOWN DEVICE J3 12 P2 J2 1 ECM (3408E/3412E HEUI) USER SHUTDOWN

- 122 8 OR 12 INJECTORS ENGINE HARNESS ADEM II ELECTRONIC CONTROL MODULE (ECM) HEUI SYSTEM COMPONENT DIAGRAM GROUND BOLT DISCONNECT SWITCH PUMP CONTROL VALVE MACHINE HARNESS MAIN 15 AMP POWER RELAY BREAKER KEY SWITCH 24 V HYDRAULIC PRESSURE SENSOR PRIMARY SPEED/TIMING SENSOR TDC SERVICE PROBE ACCESS MACHINE INTERFACE CONNECTOR THROTTLE SENSOR ACCELERATOR PEDAL SECONDARY SPEED/TIMING SENSOR THROTTLE BACK-UP, ELEVATED LOW IDLE ENABLE, AND GROUND LEVEL SHUTDOWN (2) SWITCHES COOLANT TEMP. SENSOR TURBO INLET PRESSURE SENSOR FAN CONTROL VALVE TURBO OUTLET PRESS. SENSOR ATMOSPHERIC PRESS. SENSOR FAN SPEED SENSOR FAN OIL PRESSURE SENSOR HYDRAULIC TEMP. SENSOR FUEL TEMPERATURE SENSOR COOLANT FLOW SWITCH

- 123 ETHER INJECTION SYSTEM P2 J2 ECM (3408E/E3412E) ETHER SWITCH J3 P3 23 9 39 21 F708-YL 998-BR 721-GY 710-BR P1 J1 28 29 19 40 ETHER SW LAMP DIGITAL RETURN ETHER REQUEST ETHER CONTROL 200-BK + 308-YL 310-PK 200-BK P37 J37 1 2 FROM CYLINDER +24V RELAY ETHER START VALVE TO ENGINE

- 124 SERVICE TOOL CONNECTOR CAT DATA LINK LAPTOP COMPUTER CONTROL SERVICE TOOL CAT ELECTRONIC TECHNICIAN 7X1701 COMMUNICATION ADAPTER ADEM II ELECTRONIC CONTROL MODULE (ECM) MAIN MODULE VIMS VIMS DISPLAY MODULES

- 125 988F/990 CAT DATA LINK CIRCUIT POWERTRAIN CONTROL MODULE CMS Cat Data Link + Cat Data Link - 8 9 23 24 Cat Data Link + Cat Data Link - SERVICE TOOL CONNECTOR J42 P3 J3 P1 J1 ECM D 7 893-GN 9 Cat Data Link + E 6 892-BR 3 Cat Data Link - H 31 E794-YL 7 ATA Data Link + J 32 E-793-BU 1 ATA Data Link - MACHINE INTERFACE CONNECTOR

- 126 LOGGED EVENTS High coolant temperature Loss of coolant flow Low (lube) oil pressure Abnormal hydraulic pressure Hydraulic system pressure fault User defined shutdown Air inlet restriction Engine overspeed Low fuel pressure

- 127 8 OR 12 INJECTORS ENGINE HARNESS ADEM II ELECTRONIC CONTROL MODULE (ECM) HEUI SYSTEM COMPONENT DIAGRAM GROUND BOLT DISCONNECT SWITCH MACHINE HARNESS 15 AMP BREAKER MAIN POWER RELAY KEY SWITCH 24 V PUMP CONTROL VALVE HYDRAULIC PRESSURE SENSOR PRIMARY SPEED/TIMING SENSOR TDC SERVICE PROBE ACCESS MACHINE INTERFACE CONNECTOR THROTTLE SENSOR ACCELERATOR PEDAL SECONDARY SPEED/TIMING SENSOR THROTTLE BACK-UP, ELEVATED LOW IDLE ENABLE, AND GROUND LEVEL SHUTDOWN (2) SWITCHES COOLANT TEMP. SENSOR TURBO INLET PRESSURE SENSOR FAN CONTROL VALVE TURBO OUTLET PRESS. SENSOR ATMOSPHERIC PRESS. SENSOR FAN SPEED SENSOR CAT DATA LINK FAN OIL PRESSURE SENSOR HYDRAULIC TEMP SENSOR SERVICE TOOL CONNECTOR EPTC II TRANSMISSION CONTROL AUTO RETARDER CONTROL FUEL TEMPERATURE SENSOR COOLANT FLOW SWITCH INSTRUMENT PANEL

MACHINE APPLICATIONS - 128

- 129 DECELERATION POSITION SENSOR CIRCUIT P2 J2 ECM (3408E/3412E) DECELERATION POSITION SENSOR +V DIGITAL DIGITAL RETURN SIGNAL P38 J38 A B C F702-GN A700-OR 998-BR 24 DECEL POSITION P1 J1 35 29 +V DIGITAL SUPPLY DIGITAL RETURN

- 130 THROTTLE SWITCH CIRCUIT THROTTLE SWITCH ECM (3408E/3412E) F715-PU F718-BU F716-WH F717-YL 998-BR P1 J1 2 20 8 14 29 THROTTLE - LOW IDLE THROTTLE - H.I. PARITY THROTTLE - L.I. PARITY THROTTLE - HIGH IDLE DIGITAL RETURN

- 131 CRANK WITHOUT INJECTION PLUG CIRCUIT CRANK WITHOUT INJECTION PLUG ECM (3408E/3412E) PLUG "HHH" BK J24 P24 3 2 1 720-GN 719-BR 998-BR P1 J1 25 24 29 CRANK W/O INJECT (NO) CRANK W/O INJECT (NC) DIGITAL RETURN PLUG "JJJ" BK

- 132 MECHANICAL ENGINE FAN CONTROL CIRCUIT ENGINE FAN SOLENOID VALVE P41 J41 B C F700-BU E799-BR F703-GY P2 J2 19 7 25 ECM (3408E/E3412E) VARIABLE FAN CLUTCH PWM DR AND SOL RETURN ENGINE FAN SPEED ENGINE FAN SPEED SENSOR +V DIGITAL DIGITAL RETURN SIGNAL J84 P84 A B C A700-OR 998-BR P1 J1 35 29 13 +V DIGITAL SUPPLY DIGITAL RETURN A/C ON (INPUT FROM COMPRESSOR SWITCH)

- 133 THROTTLE LOCK CIRCUIT RIGHT BRAKE PEDAL SWITCH P1 J1 ECM 998-BR 998-BR THROTTLE LOCK LAMP 113-OR BATT+ J3 P3 2 F722-OR F721-GY 998-BR F706-PU F717-YL F718-BU F719-BR 13 19 29 27 14 20 24 Throttle Lock RH Brake (NO) Throttle Lock RH Brake (NC) Digital Return Throttle Lock ON Lamp Throttle Lock Set/Declerate Throttle Lock Resume/Accelerate Throttle Lock ON/OFF 998-BR 998-BR THROTTLE LOCK SET/DECLERATION SW THROTTLE LOCK RESUME/ACCLERATION SW 998-BR THROTTLE LOCK SW

- 134 HYDRAULIC ENGINE FAN CONTROL CIRCUIT HYDRAULIC FAN SOLENOID VALVE P86 J86 P2 J2 ECM (3408E/E3412E) 2 1 F700-BU E799-BR 19 07 HYDRAULIC FAN PWM DRIVE AND SOL RETURN

SISTEMA DE MONITOREO CATERPILLAR 10 15 20 AUT P 5 25 24 V R 0 MPH km/h X100 30 44

- 136

- 137 8 OR 12 INJECTORS ADEM II ELECTRONIC CONTROL MODULE (ECM) INDUSTRIAL 3408E/3412E HEUI SYSTEM COMPONENT DIAGRAM GROUND BOLT DISCONNECT SWITCH PUMP CONTROL VALVE 15 AMP BREAKER MAIN POWER RELAY KEY SWITCH 24 V HYDRAULIC PRESSURE SENSOR PRIMARY SPEED/TIMING SENSOR SECONDARY SPEED/TIMING SENSOR TDC SERVICE PROBE ACCESS ENGINE HARNESS MACHINE INTERFACE CONNECTOR PTO ENABLE/PTO UP/DOWN SWITCHES ENGINE SHUTDOWN SWITCH ETHER ENABLE/OVERRIDE SWITCH EMERGENCY STOP/VERIFY SWITCH USER DEFINED SHUTDOWN THROTTLE POSITION SENSOR COOLANT TEMP. SENSOR FUEL PRESS. SENSOR TURBO OUTLET PRESS. SENSOR ATMOSPHERIC PRESS. SENSOR MACHINE HARNESS COOLANT LEVEL SWITCH INLET AIR TEMP. SENSOR TO AIR SHUTOFF SOLENOID OIL PRESSURE SENSOR TO ETHER SOLENOID RELAY HYDRAULIC TEMP. SENSOR ALARM /WARNING LAMP FUEL TEMPERATURE SENSOR DIAGNOSTIC LAMP MAINTENANCE INDICATOR LAMP SERVICE TOOL CONNECTOR DATA LINK EMS PANEL

- 138 3408E/3412E HEUI FUEL SYSTEM TO LUBE SYSTEM OIL FILTER COLD START OIL RESERVOIR HYDRAULIC SUPPLY PUMP GROUP HYDRAULIC OIL TEMPERATURE SENSOR OIL PRESSURE SENSOR COOL DOWN CIRCUIT FUEL TEMPERATURE SENSOR HEUI FLUID MANIFOLD FLUID MANIFOLD HYDRAULIC PRESSURE SENSOR OIL COOLER LUBE OIL PUMP PUMP CONTROL VALVE FUEL TRANSFER PUMP PRIMARY FUEL FILTER WATER SEPARATOR ECM SECONDARY FUEL FILTER HEUI PRESSURE REGULATING VALVE OIL SUMP FUEL TANK