Detroit Diesel DD15 EuroIV Operator's Manual page 24

Operating Instructions for Starting the Engine
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:
• Add winter or summer grade fuel according to the season of the year.
• Work in the cleanest conditions possible.
• Prevent water from entering the fuel tank.
For further information, Refer to section "How to Select Diesel Fuel".
Priming the Fuel System
Prime the fuel system as follows:
1. Operate the hand primer on module for three minutes or 250 strokes, or use
an external priming source such as tool J-47912 or ESOC 350.
2. Crank the engine for 20 seconds.
3. Wait 60 seconds for the starter to cool down.
4. If the engine does not start, repeat step 2 and step 3. The starting cycle can be
repeated up to three times.
5. If the engine still fails to start, continue as follows:
a. Use DDDL to check for fault codes, repair as necessary.
b. Repeat step 2 and step 3.
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All information subject to change without notice.