5-45
MAINTENANCE
REPLACING THE WATER SEPARATOR
FILTER
• 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.
<Applicable machine models 126000002
or later>
If equipped with filter for high sulfur fuel
(S): Close
1. Open the engine hood.
2. Close the valve (2) of the water separator
(1).
3. Place a pan for catching fuel under the
drain hose.
4. Loose the air-bleeding plug (8) and the
drain plug (7) to discharge fuel from inside.
5. Remove the sensor wiring coupler (3).
6. Remove the case (4) with the filter wrench.
7. Remove the element (5), and then clean
the case. When doing the above, be
careful not to damage the sensor.
8. Replace the packing with a new one and
lubricate it with diesel fuel.
9. Install the new element (5) on the filter
stand.
10. Tighten the case (4) by hand. Be sure to
do it by hand.
Tightening torque: 27 to 33 N·m (20 to
24.6 ft-lb)
11. Install the sensor wiring coupler (3).
12. Tighten the drain plug (7).
13. Bleed air.
Refer to “Bleeding air from the fuel
system” on page 6-8.
EVERY 500 HOURS
<Applicable machine models 126100003
or later>
1. Open the engine hood.
2. Place a pan under the filter (1).
3. Remove the plug (2) and drain the fuel
from the filter case (3).
4. loosen the bolt (4) right under the filter (1)
and remove the filter case (3).
5. Replace the element (5) in the filter case
(3) with a new one.
6. Install the filter case (3) and tighten the
bolt (4).
7. Tighten the plug (2) and bleed air.
Refer to “Bleeding air from the fuel
system” on page 6-8.