LeeBoy 685D - Fuel Filter; Fuel Water Separator

Fuel Filter
The fuel lter element must be replaced as directed
in the Engine Operator’s Manual. The fuel lter and
fuel water separator are located inside the left engine
access panel (Figure 5-19).
Replace the fuel lter using the following general
procedures:
1. Stop the engine.
2. Put a container under fuel lters before removing
the lter elements.
NOTE: Consider the environment when discarding
used lters and do so according to safe and
lawful practices.
3. Wipe the area around the fuel lter elements and
element mounting heads using a clean, lint-free
cloth. (Figure 5-19)
4. Use a lter removal wrench to loosen and remove
fuel lter elements by turning in a counterclockwise
direction. Drain and discard the removed elements.
5. Wipe the inside area of the lter heads with a clean,
lint-free cloth. Fill the new fuel lter elements
completely with clean fuel.
6. Put clean fuel onto the element rubber gaskets.
7. Install the new fuel lter elements onto the lter
heads. Carefully tighten the elements (by hand
only).
DO NOT overtighten the fuel lter
elements onto the lter heads.
8. Start the engine and check for ANY fuel leaks.
Fuel Water Separator
Water and dirt that gets into fuel settles into the fuel
water separator. (Figure 5-20) As it collects, a red oat
rises. When the oat reaches the line on the separator,
an error code will appear on the PV485 digital display.
It is important to drain it immediately. The fuel water
separator is conveniently located on the right engine
access door.
If you run out of fuel, it is important
to pump the water separator to prime fuel injection
lines. Failure to do so can adversely affect
performance.
Fuel Water
Separator
Figure 5-19. Fuel Water Separator Location
To drain the water separator:
1. Pull retainer clip from plug to disconnect the
harness. (Figure 5-20)
2. Unplug the harness, then unscrew the plug.
3. Drain and reinsert components.
Pump
Filter
Body
Plug
Clip
Figure 5-20. Water Separator
To clean the water separator:
1. Follow the previous steps for draining the water
separator.
2. Loosen and remove the lter body and clean it with
light oil.
3. Reinsert and tighten.
Maintenance
LeeBoy 685D Motor Grader5-20