Note: As the fuel system is primed, the pressure will
increase within the fuel system and this increase in
pressure can be felt during priming.
3. The fuel system should now be primed and the
engine should be able to start.
4. Operate the engine starting motor and crank the
engine. After the engine has started, operate the
engine at low idle for a minimum of 5 minutes.
Ensure that the fuel system is free from leaks.
Note: Operating the engine for this period will help
ensure that the fuel system is free of air.DO NOT
loosen the high-pressure fuel lines to purge air
from the fuel system. This procedure is not
required.
After the engine has stopped, you must wait for 10
minutes to allow the fuel pressure to be purged from
the high-pressure fuel lines before any service or
repair is performed on the engine fuel lines. The 10
minute wait will also allow static charge to dissipate
from the low-pressure fuel system. If necessary,
perform minor adjustments. Repair any leaks from
the low-pressure fuel system and from the cooling,
lubrication, or air systems. Replace any high-
pressure fuel line that has leaked. Refer to
Disassembly and Assembly Manual, “Fuel Injection
Lines - Install”.
If you inspect the engine in operation, always use the
proper inspection procedure to avoid a fluid
penetration hazard. Refer to Operation and
Maintenance Manual, “General hazard Information”.
If the engine will not start, refer to Troubleshooting,
“Engine Cranks but will not Start”.
i07385499
Fuel System Primary Filter
(Water Separator Element -
Replace
Fuel leaked or spilled onto hot surfaces or electri-
cal components can cause a fire. To help prevent
possible injury, turn the start switch off when
changing fuel filters or water separator elements.
Clean up fuel spills immediately.
Note: Refer to Systems Operation, Testing, and
Adjusting, “Cleanliness of Fuel System
Components” for detailed information on the
standards of cleanliness that must be observed
during ALL work on the fuel system.
NOTICE
Ensure that the engine is stopped before any servic-
ing or repair is performed.
Fuel System Primary Filter (Water
Separator) Element for Electric
Fuel Priming Pump
Remove the Element
1. Turn the fuel supply valve (if equipped) to the OFF
position before performing this maintenance.
2. Place a suitable container under the water
separator to catch any fuel that might spill. Clean
up any spilled fuel. Clean the outside body of the
filter assembly.
Illustration 83 g06304505
Typical example
3. Install a suitable tube onto drain (2). Open the
drain valve (1). Rotate the drain valve fully
counterclockwise. Two full turns are required.
4. Allow the fuel to drain into the container.
5. Remove the tube from the drain (2).
6. Remove the wiring harness from connection (3).
7. Rotate filter bowl (5) counterclockwise and remove
the filter bowl from assembly.
M0092609-05 125
Maintenance Section
Fuel System Primary Filter (Water Separator) Element - Replace
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