5-53
MAINTENANCE
EVERY 500 HOURS
Pre-fuel filter
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.)
Main fuel filter
8. Place a pan under the main fuel filter (2) to
catch fuel.
9. Loosen the vent plug (5) and the drain
plug (6) to drain the fuel inside.
10. Remove the case (7) by using a filter
wrench.
11. Replace the seals with new ones and
lubricate the new seals with diesel fuel.
12. Put the new element (length of 131 mm /
5.2 in.) (4) in the case (7) and install by
hand until the seal makes contact with
the sealing surface.
13. Tighten the case (7) with the filter
wrench.
· Tightening torque: 29.4 N·m (21.7 ft-lb.)
14. Bleed air.
Refer to “Bleeding air from the fuel
system” on page 6-8.