2015 DURAMAX FASS PUMP INSTALL

Perform the вЂ5 Gallon Bucket TestвЂ™ (refer to Table of Contents).Place your thumb over the separatorвЂ™s nipple (make sure the line is free of any obstructions and sharp bends).What is the condition of the water separator?.Is the pump operating? How much fuel do you have? Do you have enough?.Does unit have a serviceable brush motor? If yes, make sure you have the 5/8вЂќ Buna Ball serial #вЂ™s up to 4931 on FASS 150 series only.If filter is still not priming answer the following questions:.As soon as the tone changes immediately tighten the filter.You will hear the air being released and the tone of the motor should change as the fuel loads the pump LOOSEN FUEL FILTER (not the water separator) while only the pump is running.Once the tone has changed then tighten the filter.Allow it to run 30 вЂ“ 60 seconds (the tone of the motor should change once the fuel reaches the pump).Turn unit on (Dodge 24 valve may need to bump the starter more than once, so do this before the pump shuts off).With engine off, crack the fuel filter (not the water separator).

Make sure material inside is a wire screen mesh (donвЂ™t use paper or cellulose)

With engine off, loosen clamps on both sides of filter.

2015 DURAMAX FASS PUMP INSTALL

Install new filters (Torque specs are in your ownerвЂ™s manual).PROCEDURES FOR SERVICING THE FILTER/SEPARATOR No less than 7 psi (light will come on at 7psi) With a Fuel Pressure Gauge/Indicator Light (part # IL-1001) Losing fuel pressure/running out of fue.l High fuel pressure after installation. Pump sounds as though itвЂ™s turning on and off. Procedures for servicing your filters/separator.

2015 duramax fass pump