HOSE AS 3727709 - Caterpillar

Override Parameters
The override parameters screen has multiple overrides. The parameters control various functions on the engine and the aftertreatment. These functions and features allow the technician to troubleshoot different engine systems.Navigate to the following menu options in the electronic service tool to access the "Override Parameters":
Diagnostics
Diagnostic Tests
Override ParametersGlow Plug Starting Aid Override
This override is used to check that the glow plugs are functioning correctly. The override will remain active until switched off using the electronic service tool.Active Diagnostic Codes
The purpose of this screen is to show all the active diagnostic codes.In the electronic service tool, select the engine ECM.Select the "Diagnostics" tab.Select the "Active Diagnostic Codes" tab.Logged Diagnostic Codes
The purpose of this screen is to show all the logged diagnostic codes. Logged diagnostic codes will be cleared from the "Logged Diagnostic Codes" screen when the code has not been active for 40 hours.In the electronic service tool, select the engine ECM.Select the "Diagnostics" tab.Select the "Logged Diagnostic Codes" tab.Diagnostic Tests
Electronic service tool diagnostic tests are listed below.Select the "Diagnostics" tab.Select the "Diagnostic Tests" tab.Cylinder Cutout
This test can disable individual cylinders when the engine is running to help identify cylinders that are performing below the required level.Click "Change" for an individual cylinder to switch off that cylinder manually. This test can be used to identify faults by listening to the sound of the engine as a cylinder is disabled. If there is no change in the sound of the engine as a cylinder is disabled, a fault in that cylinder may be indicated.Fuel Rail Pressure Test
This test raises the fuel pressure in the high-pressure fuel rail to 180000 kPa (26107 psi) for 1 minute at 1300 rpm.After this test has completed and the fuel pressure has dropped to a safe level, the fuel system can be inspected for signs of leakage.Calibrations
In the electronic service tool, go to the following menu options:Select the "Service" tab.Select the "Calibrations" tab.Calibrations Listed in the Engine ECM Menu
Injector Codes Calibration
Whenever an injector is replaced, the injector must be trimmed. Trimming the injector calibrates all the injectors to deliver the same amount of fuel. The Injector Codes Calibration allows the injector trim code information to be programmed into the ECM. After the injector is calibrated, the calibration data is checked for validity.When new injectors are installed, record the serial numbers of each injector and input using the electronic service tool. Refer to Troubleshooting, "Injector Code - Calibrate" for more information.Component Replacement Resets
In the electronic service tool, go to the "Configurations" screen.Oxidation Catalyst Replacement Reset
Use this reset when the Diesel Oxidation Catalyst (DOC) is replaced.Lambda Sensor Replacement Reset
Use this reset when the oxygen sensor is replaced.EGR Valve Learn Reset
Use this reset when the Exhaust Gas Recirculation (EGR) valve is replaced.Rail Pressure Valve Learn Reset
Use this reset when the fuel rail pressure valve is replaced. This reset will reset the counter in the ECM for the number of times that the pressure relief valve has opened.DPF Ash Cleaning
Use this reset when the Diesel Particulate Filter (DPF) has