Note: If
you have just changed the engine oil and filter, you MUST start
the engine and confirm proper oil pressure before changing the fuel
filters. If no oil pressure is shown after approximately 10 seconds,
stop the engine and determine the cause. Running the engine with no
oil pressure could result in engine damage. Start the engine with
the accelerator pedal in the idle position. Monitor the oil pressure
gauge or indicator lamp. Keep the engine running at idling speed until
the oil pressure reading is 97 kPa (14 PSI) or more.
Note: If you are replacing all fuel filters, it is not necessary
to run the engine and test for leaks after installing each individual
fuel filter. However, if repairing a leak at one filter, complete
that repair and test the system for leaks after priming the fuel system.
Filters are an integral part of the fuel system.
Proper filter selection and maintenance are important to satisfactory
engine operation and service life. Filters should be used to maintain
a clean system, not to clean up a contaminated system. The scheduled
maintenance intervals for the appropriate duty cycles are listed in
this manual.
Warning: PERSONAL INJURY
To prevent the escape
of high pressure fuel that can penetrate skin, ensure the engine has
been shut down for a minimum of 10 minutes before servicing any component
within the high pressure circuit. Residual high fuel pressure may
be present within the circuit.
Note: At cold temperatures (-40° C or -40° F), DO NOT
remove the filter elements from the caps unless the intent is to replace
the filter elements. Repeated removals at cold temperatures may break
the filter element tabs.