BODY AS-PISTON 3223146 - Caterpillar

Fuel Level Sensor
Fuel Level Sensor - The fuel level sensor is a resistive sensor with a range from 28Ω to 250Ω. When the float is at the empty position, the resistance is approximately 250Ω. The resistance decreases as the float level increases. The sensor signals the engine ECM.Fuel Pressure Sensor
Fuel Pressure Sensor - The fuel pressure sensor is a pressure sensor with a range from 0 kPa to 1135 kPa (0 psi to 165 psi). The sensor is an analog sensor that outputs a voltage near 0 volts to 5 volts. The voltage output increases as the pressure increases. The output voltage can be calculated by using the following formula: Vout = Vsupply (5 volts) x ([Pressure (kPa) * 0.00087071] + 0.0118). The sensor signals the engine ECM.Engine Oil Pressure Sensor
Engine Oil Pressure Sensor - The engine oil pressure sensor is a pressure sensor with a range from 0 kPa to 1135 kPa (0 psi to 165 psi). The sensor is an analog sensor that outputs a voltage near 0 volts to 5 volts. The voltage output increases as the pressure increases. The output voltage can be calculated by using the following formula: Vout = Vsupply (5 volts) x ([Pressure (kPa) * 0.00087071] + 0.0118). The sensor signals the engine ECM.Hydraulic Oil Temperature Sensor
Hydraulic Oil Temperature Sensor - The hydraulic oil temperature sensor is a function of the machine ECM that indicates the temperature of the hydraulic oil. Switches
Service Mode Switch
Illustration 3 g01242277
Service Mode Switch - The service mode switch puts the machine in service mode. The service mode of the Instrument Cluster allows service personnel to see the actual values and readings of certain components on the machine. Also, the service mode shows the faults that were detected by the machine ECM. The service mode of the Instrument Cluster allows service personnel to troubleshoot the faults that were detected by the machine ECM. While the Instrument Cluster is in the service mode, the diagnostic code for any detected fault of the machine electronic control system is shown in the digital display area of the Instrument Cluster.Key Start Switch
Illustration 4 g01222031
Key Start Switch - The key start switch is an input of the machine electronic control module (ECM). The key start switch informs the machine ECM of an attempt to start the engine. The machine ECM then initiates the neutral start function. During normal machine operation, the start terminal of the key start switch is open. When the key start switch is turned to the START position, the start terminal closes to the +battery and the +battery voltage is present at connector contact J2-1 of the machine ECM. When all starting conditions are satisfied, the machine ECM sends a +battery signal to the connector contact J2-7 for the start relay and engine cranking begins. When the key start switch is in the ON position, a +battery signal is sent to connector contact J1-1. This activates the machine ECM.Lockup Clutch Switch
Illustration 5 g01242277
Lockup Clutch Switch - The lockup switch is located on