(Table 27, contd)
Troubleshooting Test Steps
Values Results
10. NRS Cooler
A. Switch off the engine and allow the engine to cool to below nor-
mal working temperature. Remove the pressure cap for the cool-
ant system. Perform a leak test on the cooling system and the
NRS cooler. Refer to Systems Operation, Testing, and Adjusting,
“Cooling System - Test”. Refer to the subsection “Testing The Ra-
diator And Cooling System For Leaks” .
NRS cooler Result: The leak test fails.
Repair: Check the NRS cooler. Perform a leak test on the
NRS cooler. Refer to Systems Operation, Testing, and Ad-
justing, “Exhaust Cooler (NRS) - Test”.
If necessary, install a replacement NRS cooler. Confirm
that the fault has been eliminated.
Result: The leak test is passed.
Proceed to Test Step 11.
11. Cylinder Head Gasket
A. Switch off the engine and allow the engine to cool to below nor-
mal working temperature. Remove the pressure cap for the cool-
ant system. Perform a leak test on the cooling system and the
NRS cooler. Refer to Systems Operation, Testing, and Adjusting,
“Cooling System - Test”. Refer to the subsection “Testing The Ra-
diator And Cooling System For Leaks” .
Cylinder Head
gasket
Result: The leak test fails.
Repair: Check the cylinder head gasket. Refer to the rec-
ommended action for the cylinder head gasket within
Troubleshooting, “Oil Contains Coolant”.
Check the cylinder head for flatness. Refer to the recom-
mended action for checking flatness of the cylinder head
within Systems Operation, Testing, and Adjusting, “Cylin-
der Head - Inspect”.
Result: The leak test is passed.
Contact the Dealer Solutions Network (DSN).
i06050803
Coolant Temperature Is Low
Use this procedure in order to troubleshoot a low
coolant temperature.
Probable Causes
• Extreme ambient temperatures
• Cooling system fault
• Coolant temperature sensor
• Water temperature regulator
Recommended Actions
Note: The procedures have been listed in order of
probability. Complete the procedures in order.
Personal injury can result from hot coolant,
steam and alkali.
At operating temperature, engine coolant is hot
and under pressure. The radiator and all lines to
heaters or the engine contain hot coolant or
steam. Any contact can cause severe burns.
Remove filler cap slowly to relieve pressure only
when engine is stopped and radiator cap is cool
enough to touch with your bare hand.
Cooling System Conditioner contains alkali.
Avoid contact with skin and eyes.
UENR4469-36 89
Symptom Troubleshooting
Copyright of Perkins Engine Company Limited. NOT FOR REPRINTING OR RESALE
To Next Page
Loading...
