Bleed Fuel System

IMPORTANT: Any time the fuel system has been opened up for service (lines disconnected or filters removed), it will be necessary to bleed air from the system.

NOTE: A second person will be needed for the following procedure.

    The fuel system can be bled at two locations:

  • Final Fuel Filter
  • Fuel Injection Pump

NS43404,0000508 -19-21FEB08-1/3

Final Fuel Filter

1. Open bleed vent screw (A).

2. Have a second person pump hand primer (B).

3. When no air bubbles are seen close vent screw.

4. Pump the hand primer until resistance is felt.

5. Repeat until no air bubbles flow from vent screw.


A-Bleed Vent Screw
B-Hand Primer

P14536

Right-Hand Side

P14537

Left-Hand Side

NS43404,0000508 -19-21FEB08-2/3

Fuel Injection Pump

1. Loosen fuel return line (A) at fuel injection pump.

2. Have a second person pump hand primer (B).

3. When no air bubbles are seen tighten fuel return line.

4. Pump the hand primer until resistance is felt.

5. Repeat until no air bubbles flow from fuel return line.

Specification

Fuel Return Line -Torque 27 N·m (20 lb-ft)


A-Fuel Return Line
B-Hand Primer

P15269

6100D, 6110D and 6125D

P14562

6115D, 6130D and 6140D

P14537

Right-Hand Side

NS43404,0000508 -19-21FEB08-3/3