BEARING-JOURNAL 2092202 - Caterpillar

Probable Causes
Fuel pressure regulator problemRecommended Actions
Note: The procedures have been listed in order of probability. Complete the procedures in the order of the listed test steps.
Table 1
Troubleshooting Test Steps Values Results
1. Check the Fuel Pressure Regulator
Note: The regulator is a customer installed component.
A. Check for a fuel pressure regulator between the booster pump at the fuel tank and the inlet of the primary fuel filters.
B. If a regulator is not installed in the fuel supply circuit between the booster pump and the inlet of the primary fuel filters, install a fuel pressure regulator in the circuit. Adjust the fuel pressure regulator in order to achieve the correct fuel pressure.
C. If a regulator is present, check the fuel pressure at the outlet of the regulator.
D. If the fuel pressure is not within specifications, adjust the regulator. If a problem with the regulator is suspected, replace the fuel pressure regulator.
Pressure
Result: No regulator.
Repair: Install a regulator and adjust the regulator.
Result: Regulator is present and pressure is high.
Repair: Adjust the regulator
Result: Regulator is present and suspected of failure.
Repair: Replace and adjust the regulator.