Operators Manual

Table Of Contents
After an Extended Storage
NOTICE: Failure to eliminate water-diluted lubricating oil may lead to
serious engine damage at startup.
An engine in storage for an extended period of time (over winter, for example) may
accumulate water in the oil pan through normal condensation of moisture (always
present in the air) on the cold, internal surfaces of the engine.
Lubrication oil diluted by water cannot provide adequate bearing protection at
engine startup. For this reason, Detroit™ recommends replacing the engine
lubricating oil and filters after extended storage.
Fuel System Checks
Make sure the fuel shutoff valve (if used) is open. Fill the tanks with the
recommended fuel. Keeping tanks full reduces water condensation and helps keep
fuel cool, which is important to engine performance. Full tanks also reduce the
chance for microbe (black slime) growth. For fuel recommendations, Refer to
section "How to Select Diesel Fuel".
NOTICE: Prolonged use of the starting motor and engine fuel pumps to
prime the fuel system can result in damage to the starter, fuel pumps, and
injectors.
If the shutoff valve is even partially closed, it may cause erratic engine
operation due to an inadequate supply of fuel to the fuel pump.
NOTICE: NEVER use ether as a starting aid to run the engine. Doing so will
result in injector damage.
If an external starting aid is used, such as a starting fluid, the heat generated by the
external fuel source will cause the injector tips to be damaged when the fuel cools
them. The injector piston and bushing can be scored from running without
lubrication.
To ensure prompt starting and even running, the fuel system must be primed if air
has entered the fuel system. Priming is done by operating the manual hand priming
pump located on the fuel filter module or connecting an external priming pump to
the priming port on the fuel filter module.
Authorized Detroit™ service outlets are properly equipped for this type of service.
Priming is required if the fuel system has been serviced.
Drain off any water that has accumulated. Water in fuel can seriously affect engine
performance and may cause engine damage.
Adding Fuel
When adding fuel, pay attention to the following:
DD Heavy Duty Platform Operators Manual
All information subject to change without notice. 43
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