(Table 125, contd)
Troubleshooting Test Steps
Values Results
6. Inspect the NRS Mixer
A. Inspect the NRS mixer for cracks, holes, or damage.
NRS mixer Result: The NRS mixer is defective.
Repair: Replace the NRS mixer. Refer to Disassembly and
Assembly, “Inlet Air Control - Remove” and Disassembly
and Assembly, “Inlet Air Control - Install”.
Result: There are no visible faults on the NRS mixer.
Contact the Dealer Solutions Network (DSN).
7. Check the Coolant Level
A. Check the coolant level.
B. Check for leaks from the coolant system.
Coolant level Result : The coolant level is low or a coolant leak is
identified.
Rectify any coolant leaks and fill the coolant system to the
correct level.
Result : The coolant level is normal and there are no cool-
ant leaks.
Proceed to Test Step 8.
8. Inspect the NRS Cooler
A. Perform a leak test on the NRS cooler. Refer to System Op-
eration, Testing, Adjusting, Exhaust Cooler (NRS) - Test.
NRS cooler Result : The NRS Cooler has internal leakage or fouling.
Repair: Replace the NRS Cooler. Refer to Disassembly
and Assembly, Exhaust Cooler (NRS) - Remove and
Install.
Result : The NRS Cooler has no internal leakage or foul-
ing. The fault is still present.
Contact the Dealer Solutions Network (DSN).
i06926388
Oil Consumption Is Excessive
Probable Causes
• Misreading oil level
• Oil leaks
• Engine crankcase breather
• Oil level
• Air intake and exhaust system
• Turbocharger or turbochargers
• Low compression (cylinder pressure)
Recommended Actions
Note: The procedures have been listed in order of
probability. Complete the procedures in order.
234 UENR4469-36
Symptom Troubleshooting
Copyright of Perkins Engine Company Limited. NOT FOR REPRINTING OR RESALE
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