Electronic Control Modules
Machine ECM
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| Illustration 1 | g02579378 |
Location of machine ECM | |
The electronic control module (ECM) is located under the floorboard in the cab, directly in front of the operator seat. The ECM receives input from sensors, controls, and the CAN A system. The ECM uses this input in order to control the operation of the outputs of the ECM, including the implement control valves and the steering hydraulic control. These outputs control solenoid valves, which receive signals of variable proportion from the ECM in order to control the operation of the machine. The inputs and outputs of the ECM are joined to the machine harness by two connectors. Each of the two connectors has 70 contacts.
ECM 2
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| Illustration 2 | g02597597 |
Location of ECM 2 | |
The second electronic control module (ECM) is located under the right side access panel near the rear of the machine. ECM 2 communicates with the machine ECM through CAN A and is used to control some of the implement inputs and outputs. ECM 2 only has one connector with 70 contacts.
Operator Controls
Differential Steering Control
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| Illustration 3 | g02597756 |
Location of steering control handle | |
The steering handle is located to the left of the operator seat. The steering handle is used to control the hydraulic steering system. The steering handle contains two sensors that send a PWM signal to the machine ECM.
Implement Control Lever
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| Illustration 4 | g02601441 |
The implement control handle is located to the right of the operator seat, in an equivalent place to the steering handle. The implement handle sends two PWM signals to the machine ECM. One PWM signal is for the x-axis of the handle and is signaling blade tilt. The other PWM signal is for the y-axis of the handle and is signaling blade lift. The thumbroller on the handle controls blade pitch by sending a PWM signal to the machine ECM. The trigger on the handle controls blade shake. The two buttons on the handle control the Accugrade system (if installed).
Winch Switch
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| Illustration 5 | g02598202 |
Winch Control Location | |
The winch switch is located on the right side of the operator seat.
Ripper Control Lever
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| Illustration 6 | g02598236 |
Location of ripper lever | |
The ripper lever is located on the right side of the operator chair.
Implement Shutoff Switch
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| Illustration 7 | g02598259 |
Location of the implement shutoff switch | |
The Implement shutoff switch is located on the left side of the operator chair.
Hydraulic System Sensors
Steering Speed Sensor
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| Illustration 8 | g02606503 |
Location of Steering Speed Sensor | |
The steering speed sensor is located on the top side of the steering motor.
Hydraulic Tank Temperature Sensor
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| Illustration 9 | g02606996 |
Location of the Hydraulic Tank Temperature Sensor | |
The hydraulic tank temperature sensor is located on the right-hand side of the hydraulic tank.
Hydraulic System Solenoids
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| Illustration 10 | g02607362 |
Location of the blade raise, lower, tilt left, tilt right, pitch left, and pitch right solenoids. | |
The solenoids controling all blade movement are located behind ECM 2 on the right side of the machine.