Detroit Diesel DD15 EuroIV Operator's Manual page 28

Operating Instructions for Starting the Engine
WARNING: HOT OIL
To avoid injury from hot oil, do not operate the engine with the
rocker cover(s) removed.
1. Observe the oil pressure gauge immediately after starting the engine. An oil
pressure gauge that registers pressure 14 psi (96 kPa) at idle speed and
normal operating temperature is a good indicator that all moving parts are
getting lubrication.
2. If no pressure is indicated within 10 to 15 seconds, stop the engine and check
the lubrication system at normal operating temperature.
3. The oil pressure should not drop below 55 psi (380 kPa) at 1800 rpm, at
normal operating temperature. If oil pressure does not fall within these
guidelines, check it with a manual gauge.
Warming Up the Engine
Run the engine at part throttle for about five minutes to allow it to warm up before
applying a load.
Inspection During Idling
While the engine is idling, inspect the transmission and crankcase for fluid leaks.
On DD15 engines, check the Axial Power Turbine (APT) for oil leaks.
Checking the Transmission
While the engine is idling, check the automatic transmission (if equipped) for
proper oil level and add oil as required.
Checking for Fluid Leaks
Check for fluid leaks as follows:
1. Look for coolant, fuel, or lubricating oil leaks.
2. If any leaks are found, shut down the engine immediately and have the leaks
repaired after the engine has cooled.
Checking the Crankcase
Check the crankcase as follows:
1. If the engine oil was replaced, stop the engine after normal operating
temperature has been reached. Allow the oil to drain back into the crankcase
for about 60 minutes, then check the oil level.
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