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