Detroit Diesel EPA07 Manual

2.2.1 Priming the Fuel System - Three-Filter System

While servicing the fuel system, air can enter the system and will need to be purged. If the air in the system is not
properly purged, a no-start condition, longer than normal crank times, or electronic service codes related to
unstable rail pressure may occur. If a service code is set after work is performed on the fuel system, clear the
codes and retest the system.
The Parker-Racor Three-Filter Fuel System requires specific priming pressures to properly prime the lubrication
circuit on the high pressure pump. To prevent severe damage to the pump and/or other fuel system components,
it is important that only a Detroit ® approved priming tool is used.
Detroit ® approved priming tools for the Parker-Racor Three-Filter Fuel System:
• DAVCO Shop Pro FXP 95 (120 Volt 95 psi) PN: DAVCO FXP95
• ESOC 455 (Pneumatic 95 psi) PN: DES001E19011
• ESOC 250E (120 Volt 95 psi) PN: ESOC 250E
• ESOC 350 (Pneumatic) (Discontinued)
• DAVCO Shop Pro FXP (120 Volt) (Discontinued)

Export Specific Primers:

• DAVCO Shop Pro FXP Regulated 50/95 psi (230 Volt Italy/Chile) PN: DDV470E19004
• DAVCO Shop Pro FXP Regulated 50/95 psi (230 Volt Australia) PN: DDV470E19005
Proceed as follows:
1. Connect the Detroit® approved priming tool. Refer to the Original Equipment Manufacturer (OEM)
instructions provided with the tool.
Note : If there is a need to stop the machine for any reason (leaks, forgot to connect hose, etc.), depress the
STOP button.
2. Turn the priming tool ON.
3. Prime the fuel system for TWO (2) minutes.
WARNING
ENGINE EXHAUST
To avoid injury from inhaling engine exhaust, always operate the engine in a well-
ventilated area. Engine exhaust is toxic.
WARNING
PERSONAL INJURY
To avoid injury before starting and running the engine, ensure the vehicle is parked on a
level surface, parking brake is set, and the wheels are blocked.
4. With the priming tool still CONNECTED and PRIMING , start the engine and run at idle (600 rpm) for ONE
(1) minute.
5. Turn the priming tool OFF and close the ball valve.
6. Increase engine speed to 1500 rpm for ONE (1) additional minute.
7. Reduce engine speed to idle (600 rpm).
8. Disconnect the priming tool. Refer to OEM instructions.
Note : Starting difficulty may occur until a drive cycle has been completed to completely remove all remaining air
from the fuel system.
EPA07 10 GHG14 Fuel Manual (DDC-SVC-MAN-0082)
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