Table 59
Troubleshooting Test Steps Values Results
1. Visible Leaks
A. Thoroughly inspect the engine for oil leaks.
Visible leaks Result: There are visible oil leaks.
Repair any leaks.
Result: There are no visible oil leaks
Proceed to Test Step 2.
2. Engine Oil Level
A. Check the engine oil level.
Oil level Result: The engine oil level is low.
Fill the oil system to the full mark on the dipstick.
Result: The engine oil level is OK.
Proceed to Test Step 3.
3. Oil Specification
A. Check that engine oil of the correct specification is being
used. Refer to the Operation and Maintenance Manual, “Refill
Capacities and Recommendations”.
Oil specification Result: An incorrect specification of engine oil is being used.
Drain the oil system and refill the oil system with engine oil of
the correct specification. Refer to Operation and Maintenance
Manual, “Engine Oil and Filter - Change”.
Result: The engine contains oil of the correct specification.
Proceed to Test Step 4.
4. Engine Oil Filter
A. Remove the engine oil filter. Refer to the Operation and
Maintenance Manual, “Engine Oil and Filter - Change”.
B. Inspect the engine oil filter for evidence of blockage.
Oil filter Result: The oil filter is blocked.
Install a new oil filter. Refer to the Operation and Maintenance
Manual, “Engine Oil and Filter - Change” for further
information.
Result: The oil filter is OK.
Install a new oil filter. Refer to the Operation and Maintenance
Manual, “Engine Oil and Filter - Change” for further
information.
Proceed to Test Step 5.
5. Engine Oil Pressure Switch
A. Ensure that the engine oil pressure switch is operating cor-
rectly. Refer to Troubleshooting, “Switch Circuits - Test (En-
gine Oil Pressure Switch)”.
Engine Oil Pres-
sure Switch
Result: There is a fault with the oil pressure switch circuit.
Make any necessary repairs. Refer to Troubleshooting,
“Switch Circuits - Test (Engine Oil Pressure Switch)”.
Result: The oil pressure switch circuit is OK.
Proceed to Test Step 6.
(continued)
UENR0612 115
Symptom Troubleshooting
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