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JACOBSEN G-PLEX III Series: FH & FJ
SAFETY AND OPERATORS MANUAL
9.15 BLEEDING THE FUEL SYSTEM - DIESEL
The fuel system must be bled when:
• Starting the engine for the first time.
• The fuel tank becomes completely empty.
• The engine has not been used for an
extended period of time.
• The fuel filter and/or fuel lines have been
loosened, removed or replaced.
1. Fill the fuel tank.
2. Open the air vent on top of the fuel filter (See
Fig. 9.15.1).
3. Without preheating the glow plugs, turn the
ignition switch to START to operate the fuel
pump. Allow the starter to run the pump until a
steady stream of fuel is coming out of the fuel
filter air vent. Stop the starter and close the
air vent.
4. Open the air vent on top of the injection
pump, open air vent only when engine is NOT
running (See Fig. 9.15.2).
5. Without preheating the glow plugs, turn the
ignition switch to START to operate the fuel
pump. Allow the starter to run the pump until a
steady stream of fuel is coming out of the
injection pump air vent. Stop the starter and
close the air vent.
Figure 9.15.1
1. Fuel Filter Air Vent
2. Secondary fuel filter
Figure 9.15.2
1. Injection Pump Air Vent
9 LUBRICATION & MAINTENANCE