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TRUNNION GP-BULLDOZER 5089112 - Caterpillar

5089112 TRUNNION GP-BULLDOZER Caterpillar parts TRUNNION
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Caterpillar 5089112 TRUNNION GP-BULLDOZER

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Table 1
Event Code
Code and Description Conditions which Generate this Code System Response
E198(1) Low Fuel Pressure The fuel pressure in the low-pressure system is below the trip point for the delay time. The code is logged.
E198(2) Low Fuel Pressure The code is logged.
The engine power is derated. Probable Causes
Fuel level
Vent port at the fuel tank
Diagnostic codes and event codes
Fuel filters
Fuel pressure sensors
Fuel pressure regulating valve
Fuel priming pump
Fuel transfer pumpRecommended Actions
Fuel Level
Visually inspect the fuel level in the fuel tank. Ensure that the fuel tank contains enough fuel in order to operate the engine.Vent Port at the Fuel Tank
Check the vent port that is at the fuel tank for debris. Clear any restrictions with compressed air.Note: Do not allow debris to enter the fuel tank while you clean the cap. Damage to the fuel system will occur.Diagnostic Codes and Event Codes
Connect Cat ET to the service tool connector. Check for active diagnostic codes and event codes.Look for diagnostic codes that are active or logged. Check for codes that are related to the low-pressure fuel system. Use the appropriate circuit test to troubleshoot any active codes before continuing.Also, look for event codes that are active or logged. check for codes that are related to the low-pressure fuel system. If there is evidence of a problem with the fuel system, repair the low-pressure fuel system before continuing.Note: Diagnostic codes that are logged repeatedly could be a sign of intermittent electrical problem. Event codes that are logged repeatedly may be evidence of an impending problem with the engine.Fuel Filters
Replace clogged fuel filters. Fuel Pressure Sensors
Start the engine. Run the engine at low idle. Use Cat ET to monitor the following status parameters:
"Fuel Transfer Pump Inlet Pressure (absolute)"
"Unfiltered Fuel Pressure (absolute)"
"Fuel Pressure (absolute)"Check the value of each parameter while the engine is at low idle. Ensure that the value for each of the parameters is reasonable.Increase the engine speed from low engine idle to high engine idle while you monitor the parameters. Ensure that the value of each of the parameters fluctuates with the change in the speed of the engine. Ensure that the value of each of the sensors remains reasonable as the fuel pressure increases. Refer to Systems Operation/Testing and Adjusting for the correct pressure values.If a problem with one of the sensors is suspected, refer to Troubleshooting, "Sensor Signal (Analog, Active) - Test" for details that are related to troubleshooting a problem with the sensor.Fuel Pressure Regulating Valve
A fuel pressure regulating valve that is stuck in the open position may cause low fuel pressure. If a problem with the valve is suspected, the problem is probably caused by contamination or debris lodged between the valve and the valve seat. Remove the valve assembly from the fuel filter base. Inspect the valve assembly for contamination or debris. Clean any contamination or debris that may keep the regulating valve open. If debris is present, find the source of the contamination.If the fuel pressure regulating valve is the suspected cause of the low fuel

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