LS tractor MT458 - Every 500 Hour Check

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