Navistar MaxxForce DT Operation And Maintenance Manual page 71

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SECTION 5 – MAINTENANCE SCHEDULE AND SERVICE PROCEDURES
WARNING
To prevent personal injury or death, store diesel
fuel properly in an approved container designed
for and clearly marked DIESEL FUEL.
Figure 28 Fuel filter header assembly
1.
Electric fuel pump
2.
Fuel filter cover
3.
Exhaust Gas Recirculation (EGR) valve
4.
Oil fill tube
5.
Water drain valve
1. If necessary, connect a hose to the end of the water drain
valve.
2. Put a suitable container under water drain valve or drain
hose.
3. Turn ignition switch to ON. This will start the electric fuel
pump. Do not start engine.
NOTE: The water / fuel mixture will drain slowly and may
take up to a minute to attain pure fuel flow.
4. Turn water drain valve to open and allow water/fuel mixture
to drain. Continue draining until only fuel is draining.
NOTE: Fuel will only drain from the water drain valve as
long as the electric fuel pump is running.
fuel pump can run from 10 to 20 seconds. Do not turn the
ignition switch to OFF then ON again without waiting the 10
seconds. If the 10 seconds waiting period is not observed,
the electric fuel pump will not restart.
5. Fuel will only flow as long as the fuel pump is running. If
additional fuel pump run time is desired, turn the ignition
switch to OFF, wait 10 seconds then turn the ignition switch
to ON to continue draining water.
6. Once fuel-water draining is complete, close water drain
valve and turn the ignition switch to OFF.
7. Recycle or dispose of drained fluids properly according to
applicable regulations.
The electric
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