DETROIT DIESEL
SECTION 5
ENGINE OPERATING INSTRUCTIONS
It is recommended that the engine lubricating system
PREPARATION FOR STARTING ENGINE
be charged with a pressure prelubricator, set to supply
FIRST TIME
a minimum of 25 psi (172 kPa) oil pressure, to ensure
an immediate flow of oil to all bearings at the initial
Before starting an engine for the first time, carefully
engine start-up. The oil supply line should be attached
read and follow these instructions. Attempting to run
to the engine so that oil under pressure is supplied to
the engine before studying these instructions may
the main oil gallery.
result in serious damage to the engine.
NOTE: When preparing to start a new or
With the oil pan dry, use the prelubricator to prime
the engine with sufficient oil to reach all bearing
overhauled engine or an engine which has been
surfaces. Use heavy-duty lubricating oil as specified
in storage, perform all of the operations listed
under Lubricating Oil Specifications. Then remove the
below. Before a routine start (at each shift), see
dipstick, wipe it with a clean cloth, insert and remove
Daily Operations in the Lubrication and
it again to check the oil level in the oil pan. Add
Preventive Maintenance Chart.
sufficient oil, if necessary, to bring it to the full mark
on the dipstick. Do not overfill.
Cooling System
If a pressure prelubricator is not available, fill the
crankcase to the proper level with heavy-duty
Install all of the drain cocks or plugs in the cooling
lubricating oil as specified. Then pre-lubricate the
system (drain cocks are removed for shipping).
upper `engine parts by removing the valve rocker
covers and pouring lubricating oil, of the same grade
Open the cooling system vents, if the engine is so
and viscosity as used in the crankcase, over the rocker
equipped.
arms.
Remove the filler cap and fill the cooling system with
clean, soft water or a protective solution consisting of
high boiling point type antifreeze, if the engine will be
Turbocharger
exposed to freezing temperatures. Refer to Engine
Coolant. Keep the liquid level about two inches below
Disconnect the turbocharger oil inlet line and pour
the filler neck to allow for fluid expansion.
approximately one pint of clean engine oil in the line,
thus making sure the bearings are lubricated for the
Use a quality rust inhibitor if only water is used in the
initial start. Reconnect the oil line.
cooling system.
Close the vents, if used, after filling the cooling
Air Cleaner
system.
If the engine is equipped with oil bath air cleaners, fill
On marine installations, prime the raw water cooling
the air cleaner oil cups to the proper level with clean
system and open any sea cocks in the raw water pump
engine oil. Do not overfiII.
intake line. Prime the raw water pump by removing
the pipe plug or electrode provided in the pump outlet
elbow and pour water in the pump.
Transmission
CAUTION: Failure to prime the raw water pump
Fill the transmission case, marine gear or torque
may result in damage to the pump impeller.
converter supply tank to the proper level with the
lubricant specified under Lubrication and Preventive
Maintenance.
Lubrication System
The lubricating oil film on the rotating parts and
bearings of a new or overhauled engine, or one which
Fuel System
has been in storage, may be insufficient for proper
lubrication when the engine is started for the first
Fill the fuel tank with the fuel specified under Diesel
time.
Fuel Oil Specifications.
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