5 -35
5-10. Every 500 hour check
(1) Replacing Fuel filter cartridge
① Pre-fuel filter
Stop the engine and cool it down sufficiently. Set
a clean container under the pre-fuel filter.
Disconnect the electric harness connector of the
fuel filter sensor and loosen the fuel filter sensor
while making sure to collect the fuel.
Remove the filter element from the body.
Assemble the fuel filter sensor to the new
element.
Install the new element assembly to the body.
Connect the electric wire connector of the fuel
filter sensor.
Bleed air from the fuel filter. See chapter 5-15-
(1), “Air-bleeding from fuel system” in this
manual.
Body
Element
Fuel filter sensor
Pre-fuel filter
▶ Fuel leaked or spilled onto hot surfaces or electrical components can cause a fire.
To help prevent possible injury, turn the key switch off when changing fuel filters or
water separator elements. Clean up fuel spills immediately.
Warning
② Main fuel filter
Stop the engine and cool it down sufficiently. Set
a clean container under the main fuel filter.
Loosen the drain valve while making sure to
collect the fuel.
Remove the cover and replace the element,
gasket, and O-ring with a new one.
Check the float ring in the cover and assemble
the cover.
Tighten the drain valve.
Bleed air from the fuel filter. See chapter 5-15-
(1), “Air-bleeding from fuel system” in this
manual.
Main fuel filter
Cover
O-ring
Drain valve
Element
Gasket
Float-ring