CAUTION
Operate priming pump at a maximum rate of 30 strokes per minute to prevent damage to pump.
4.
Check for leakage at the fuel filter cap. Tighten if necessary.
WARNING
Check the fuel filter for signs of leakage. DO NOT smoke or allow an open flame in close proximity. Failure to do so could ignite a fire
or cause an explosion which could result in serious injury to you and/or bystanders. Failure to comply may result in death, personal
injury, equipment or property damage.
5.
Wait for 60 seconds and then operate the priming pump 25 more strokes.
6.
Start the engine and allow it to idle for 5 minutes. Note that it could take up to 15 seconds of cranking for the
engine to start. If the starter is engaged for longer than 20 seconds without starting, additional priming pump
actuation may be necessary.
CAUTION
If the engine is cranked excessively, Starter Protection will be triggered and starter engagement will be restricted for 10 minutes.
NOTE
Allowing the engine to idle for several minutes with the PACCAR fuel blending valve in the prime (closed) position assists in purging
air from the fuel system.
7.
Check the system for leakage while idling.
8.
Turn the engine OFF and check the system again for leakage.
9.
If the engine does not start within this time, repeat steps two and three until the engine starts. If the engine still
does not start, allow the starter to cool down for at least 5 minutes before repeating the procedure.
10. If equipped with a PACCAR fuel blending valve, turn the valve 90° clockwise to the RUN (open) position. The valve
only rotates 90° left or right.
NOTE
Failure to return the PACCAR fuel blending valve to the RUN (open) position will prevent fuel recirculation and heating.
WARNING
DO NOT loosen any fuel line fittings in order to bleed the fuel system of air. The system is under high pressure which, when relieved,
could cause death, personal injury, equipment or property damage.
Priming the Fuel System - CHAPTER 2: FUEL FILTER
SM044-004 (01/2021)
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