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6.4.3 Fuel system
6.4.3.1 Draining primary fuel filters
The fuel system comprises:
Drain condensate from the primary coarse fuel filters
/ water separators regularly by loosening the drain
plugs (3). Catch the condensate in a drain pan.
Tighten the plugs after draining.
6.4.3.2 Priming the system
– Check to make sure the drain valve at the base of
the fuel filter is closed.
– Remove the vent cap from the top of the clear
cover. Fill the fuel filter full of clean fuel.
Reinstall the vent cap and tighten by hand only.
– Start the engine. When the lubrication system
reaches its normal operating pressure, increase
engine speed to high idle for one or two minutes.
After the air is purged, loosen the vent cap until
the fuel level lowers to just above the bottom of
the collar. Tighten the vent cap by hand only.
– Hand tighten the collar again while the engine is
running. To avoid damage, do not use tools to
tighten the collar.
1 Two primary coarse fuel filters / water
separators
2 One secondary engine fuel filter
The clear filter cover will not fill
completely during engine operation.
It will gradually fill over time and
the fuel level will rise as the filter
becomes clogged.
To avoid damaging the aluminium
fuel processor body, do not
overtighten fuel lines or fuel line
fittings.
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