5-53
MAINTENANCE
EVERY 500 HOURS
2. Place a pan under the pre-fuel filter (1) to
catch fuel.
3. Loosen the vent plug (5) and the drain
plug (6) to drain the fuel inside.
4. Remove the case (7) by using a filter
wrench.
5. Replace the seals with new ones and
lubricate the new seals with diesel fuel.
6. Put the new element (length of 150 mm /
5.9 in) (4) in the case (7) and install by
hand until the seal makes contact with the
sealing surface.
7. Tighten the case (7) with the filter wrench.
· Tightening torque: 30 N·m (22.1 ft-lb)
8. Bleed air.
Refer to “Bleeding air from the fuel
system” on page 6-10.
Main fuel filter
1. Open the right side cover.
REPLACING THE FUEL FILTERS
• Do not smoke or permit open flames
while handling fuel or working on the
fuel system.
• Stop the engine in a well-ventilated
place and allow it to cool down before
performing maintenance.
• Clean up spilled fuel immediately.
• Before performing maintenance on top
of the work bench, clean the footing and
observe the following precautions to
prevent falling.
· Do not spill oil or grease.
· Do not leave tools scattered around.
· Watch your step when walking.
• Never jump down from the machine or
the work bench. When getting on or off
the machine or work bench, use the
steps, handrails or work bench to
support your body. Your weight should
be evenly distributed among the three
contact points (one hand and two feet
or two hands and one foot).
• Do not stand on the dozer blade and
perform maintenance work. Doing so is
dangerous because of the unsteady
foothold. Use the work bench.
Pre-fuel filter
2. Place a pan under the main fuel filter (2) to
catch fuel.
3. Loosen the vent plug (5) and the drain
plug (6) to drain the fuel inside.