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| Illustration 1 | g03657561 |
The coupler is located between the engine and the generator.
Refer to Systems Operation, "Electric Power Generation" for additional information.
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| Illustration 2 | g03657565 |
The generator is located directly behind the engine.
Refer to Systems Operation, "Electric Power Generation" for additional information.
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| Illustration 3 | g03657567 |
The stator is located in the generator.
Refer to Systems Operation, "Electric Power Generation" for additional information.
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| Illustration 4 | g03657570 |
The rotor group is located in the generator.
Refer to Systems Operation, "Electric Power Generation" for additional information.
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| Illustration 5 | g03657572 |
The stator exciter is located in the generator.
Refer to Systems Operation, "Electric Power Generation" for additional information.
Excitation Field Regulator (EFR)
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| Illustration 6 | g03657573 |
The Excitation Field Regulator is on the right-hand side of the frame near the rear of the machine.
Refer to Systems Operation, "Electronic Control (Power Train System)" for additional information.
Electronic Control Module (Drive Train)
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| Illustration 7 | g03657574 |
The Drive Train Control Module (ECM) is located in a separate cabinet, between the cab and the inverter cabinet.
Refer to Systems Operation, "Electronic Control (Power Train System)" for additional information.
Electronic Control Module (Chassis)
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| Illustration 8 | g03657575 |
The Chassis Electronic Control Module (ECM) is located in a separate cabinet, between the cab and the inverter cabinet.
Reference: Refer to Systems Operation, "Electronic Control (Hydraulic System)" for additional information.
Electronic Control Module (Brake)
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| Illustration 9 | g03657577 |
The Brake Electronic Control Module (ECM) is located in a separate cabinet, between the cab and the inverter cabinet.
Reference: Refer to Systems Operation, "Electronic Control (Hydraulic System)" for additional information.
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| Illustration 10 | g03657578 |
The inverter cabinet is located behind the hood group to the right of the cab.
Refer to Systems Operation, "Electric Drive System" for additional information.
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| Illustration 11 | g06322406 |
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The Motor Control ECM modules are located in the top left corner of the inverter cabinet. To access the modules, remove the bolts securing the cover for the compartment. (1) Motor Control #2 ECM (2) Motor Control #1 ECM | |
Refer to Systems Operation, "Electronic Control (Power Train System)" for additional information.
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| Illustration 12 | g03657585 |
The interface modules are located in the inverter cabinet.
Refer to Systems Operation, "Electronic Control (Power Train System)" for additional information.
Note: To access the modules, remove the bolts holding the top right panel cover for the compartment.
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| Illustration 13 | g03657587 |
The terminal board is located in the inverter cabinet.
Refer to Systems Operation, "Electric Drive System" for additional information.
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| Illustration 14 | g03657590 |
The bulk capacitor assembly is located in the inverter cabinet.
Refer to Systems Operation, "Electric Drive System" for additional information.
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| Illustration 15 | g03657592 |
The contactor assembly is located in the inverter cabinet.
Refer to Systems Operation, "Electric Drive System" for additional information.
DC Filter Capacitor (If Equipped)
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| Illustration 16 | g03657593 |
The DC filter capacitor is located in the inverter cabinet. (If equipped.)
Refer to Systems Operation, "Electric Drive System" for additional information.
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| Illustration 17 | g03657596 |
The phase modules are located in the inverter cabinet.
Refer to Systems Operation, "Electric Drive System" for additional information.
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| Illustration 18 | g03657598 |
The chopper module is located in the inverter cabinet.
Refer to Systems Operation, "Electric Drive System" for additional information.
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| Illustration 19 | g03657600 |
The motor and generator bus bar, and the current sensors, are located in the lower compartment of the inverter cabinet (see arrow).
Refer to Systems Operation, "Electric Drive System" for additional information.
Inverter Active Resistor Assembly
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| Illustration 20 | g03657601 |
The inverter active resistor assembly is located in the inverter cabinet.
Refer to Systems Operation, "Electric Drive System" for additional information.
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| Illustration 21 | g03657603 |
The DC bus discharge resistors are located in the inverter cabinet.
Refer to Systems Operation, "Electric Drive System" for additional information.
Retarding Grid Blower Inverter
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| Illustration 22 | g03657604 |
The "Retarding Grid Blower Inverter" (RGBI) is located in the inverter cabinet.
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| Illustration 23 | g06402292 |
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Opposite the RGBI in the inverter cabinet are the voltage sensors, ground fault sensor, Crowbar, thyristor, and two "Y" capacitors. (1) Ground Fault Voltage Sensor (2) DC Bus Voltage 1 Sensor (DCV 1) (3) DC Bus Voltage 2 Sensor (DCV 2) (4) Crowbar assembly harness connector (5) Thyristor anode positive (+) side bus bar connection to the CHN cable. (6) Thyristor cathode negative (-) side bus bar connection to the DCN cable. | |
Refer to Systems Operation, "Electric Drive System" for additional information.
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| Illustration 24 | g03657605 |
The rectifier assembly is located in the inverter cabinet.
Refer to Systems Operation, "Electric Drive System" for additional information.
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| Illustration 25 | g03657606 |
The retarding grid assembly is at the rear of the right side of the platform arrangement.
Refer to Systems Operation, "Electric Drive System" for additional information.
Electric Motor (Wheel Traction)
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| Illustration 26 | g03657610 |
The wheel traction motor groups are located in the housing of the rear axle.
Refer to Systems Operation, "Electric Drive System" for additional information.
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| Illustration 27 | g03657612 |
The blower fan is located inside the ductwork above the left-hand side of the frame.
Refer to Systems Operation, "Piston Motor (Blower Fan)" for additional information.
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| Illustration 28 | g03657611 |
The piston motor (blower fan) is located behind and under the cab above the left-hand side of the frame.
Refer to Systems Operation, "Piston Motor (Blower Fan)" for additional information.
Solenoid Valve (Cooling Fan Motor)
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| Illustration 29 | g03657614 |
The solenoid valve for the cooling fan motor is on the bottom of the blower motor.
Refer to Systems Operation, "Electronic Control (Power Train System)" for additional information.
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| Illustration 30 | g03657618 |
The speed sensor for the blower motor is on the side of the blower motor. The motor faces the left frame wall on the truck
Refer to Systems Operation, "Electronic Control (Power Train System)" for additional information.
Makeup Valve (Hydraulic Fan Motor)
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| Illustration 31 | g06341911 |
The makeup valve for the hydraulic fan motor is on the blower fan on the left-hand side of the machine.
Refer to Systems Operation, "Power Train Cooling Fan System" for additional information.
Generator and Traction Motor Duct (Air Cooling)
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| Illustration 32 | g03657620 |
The air cooling generator duct group is between the frame along the center of the truck frame.
Refer to Systems Operation, "Generator Duct (Air Cooling)" for additional information.
Refer to Systems Operation, "Power Train Cooling Fan System" for additional information.
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| Illustration 33 | g03657621 |
The final drives are on the outside of each wheel group.
Refer to Systems Operation, "Final Drive" for additional information.
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| Illustration 34 | g03657624 |
The shift control lever is located in the cab in the console to the right-hand side of the seat.
Refer to Systems Operation, "Electronic Control (Power Train System)" for additional information.
Refer to Systems Operation, "Electric Drive System" for additional information.
Note: When in the PARK position, the Park Brake is a separate switch / control.
Dynamic Retarder Pedal/Service Brake
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| Illustration 35 | g03657625 |
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Dynamic Retarder Pedal - During normal operation, depress the dynamic retarder pedal to slow the machine down to |
The dual function retarding pedal and service brake is located in the cab in front of the operator seat (see arrow). When the pedal is pressed up to 80 percent of full compression, the retarding function is engaged. When the pedal is depressed by more than 80 percent of full compression, the service brake is engaged. If the truck is traveling at a speed of less than
Refer to Systems Operation, "Electronic Control (Power Train System)" for additional information.
Priority Valve and Manifold (Blower Fan, Final Drive Lubrication, and Steering)
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| Illustration 36 | g06341890 |
The "Priority Valve and Manifold" are mounted on the inside left-hand frame rail and is located above the hydraulic oil filters.
Refer to Systems Operation, "Priority Valve and Manifold (Blower Fan, Final Drive Lubrication, and Steering)" for additional information.
Pump and Motor (Final Drive Lubrication)
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| Illustration 37 | g03657630 |
The pump and motor for the final drive lubrication is on the front of the rear axle housing.
Refer to Systems Operation, "Final Drive Lubrication System" for additional information.
Temperature Sensor (Final Drive Oil)
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| Illustration 38 | g03657632 |
The temperature sensors for the final drive oil are on both sides of the front of the rear axle housing.
Refer to Systems Operation, "Electronic Control (Power Train System)" for additional information.
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| Illustration 39 | g03657634 |
The oil filters for the final drive oil are on both sides in front of the rear axle housing.
Refer to Systems Operation, "Final Drive Lubrication System" for additional information.
Refer to Systems Operation, "Oil Filter (Final Drive)" for additional information.
Pressure Sensor (Final Drive Oil)
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| Illustration 40 | g03657635 |
The pressure sensors for the final drive oil are on the final drive oil filters.
Refer to Systems Operation, "Electronic Control (Power Train System)" for additional information.
Bypass Switch (Final Drive Filter)
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| Illustration 41 | g03657637 |
The bypass switches for the final drive oil are on the final drive oil filters.
Refer to Systems Operation, "Electronic Control (Power Train System)" for additional information.