AIR COMPRESSOR GP 1440746 - Caterpillar

Back-up Alarm Components
Illustration 1 g03797437
Left Side of Machine (1) Back-up alarm relayBack-up alarm relay (1) is located in the fuse panel on the left side of the machine. The relay is installed in the lower right fuse box. The fuse panel doors must be opened to access this component.The coil of back-up alarm relay (1) is controlled by the transmission ECM. The relay is energized when the propel lever is in the reverse range. When the relay is energized, the back-up alarm sounds. The back-up alarm relay also triggers the back-up camera signal for the camera display.
Illustration 2 g03797438
Rear of Machine (2) Back-up alarmBack-up alarm (2) is located under the rear frame of the machine, behind the fuel tank. Access to this component is gained from underneath the machine.Back-up alarm (2) sounds when the propel lever is in the reverse range.Steering Sensors
Illustration 3 g03797439
Left Side of Machine (1) Rear steering sensorRear steering sensor (1) is located on the rear cross member, on the left of the machine. A cover must be removed to access this component.Rear steering sensor (1) is used in the propel system to balance the pump pressures during a turn. The balance calculation result depends on the steering mode selected.Note: For more information about steering mode, refer to Systems Operation, Testing and Adjusting, UENR2085, "Auxiliary System"
Illustration 4 g03797441
Right Side of Machine (2) Front steering sensorFront steering sensor (2) is located on the right front wheel steering weldment. A protective cover must be removed to access this component.Front steering sensor (2) is used in the propel system to balance the pump pressures during a turn. The balance calculation result depends on the steering mode selected.Note: For more information about steering mode, refer to Systems Operation, Testing and Adjusting, UENR2085, "Auxiliary System"Transmission ECM
Illustration 5 g03797442
Left Side of Machine (1) Transmission ECMTransmission ECM (1) is located inside the electrical compartment on the left side of the machine, behind the fuse panel. The fuse panel must be removed to access this component.Transmission ECM (1) controls propel system functions. The ECM receives input signals from components around the machine that monitor current machine operating conditions. System software compares the gathered input to information that is stored in the ECM memory. The software evaluates the current conditions and generates an output signal to control the machine within set parameters.