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SEBU9068-03
1. Ensure that the fuel system is in working order.
Check that the fuel supply valve (if equipped) is in
the "ON" position.
2. Operate the hand priming pump. Count the
number of operations of the pump. After
approximately 80 depression of the pump stop.
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 starter 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 in order to
purge air from the fuel system. This procedure is
not required.
After the engine has stopped, you must wait for 10
minutes in order 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. 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 in order 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".
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.
Fuel System Primary Filter (Water Separator) Element - Replace
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.
Ensure that the engine is stopped before any servic-
ing or repair is performed.
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 in order to catch any fuel that might spill.
Clean up any spilled fuel. Clean the outside body
of the filter assembly.
3. Make a temporary Mark (A) across the filter before
the assembly is removed.
i05326388
Illustration 63
Typical example
4. Install a suitable tube onto drain (3). Open the
drain valve (2). Rotate the drain valve
counterclockwise. Two full turns are required.
Loosen vent screw (1).
Note: Two complete rotations of the valve will
release the valve from the filter element.
5. Allow the fuel to drain into the container. Remove
the tube and install the valve into the filter element.
Engage the threads of the valve into the filter
element. Do not secure the valve.
Maintenance Section
NOTICE
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105
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