Service Manual

ISB, ISBe and QSB (Common Rail [...] Fuel Filter (Spin-On Type)
Section 6 - Injectors and Fuel Lines - Group 06 Page 6-29
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Operate the engines and check for leaks.
Fuel Filter (Spin-On Type) (006-015)
General Information
WARNING
Fuel is flammable. Keep all cigarettes, flames, pilot
lights, arcing equipment, and switches out of the
work area and areas sharing ventilation to reduce the
possibility of severe personal injury or death when
working on the fuel system.
WARNING
Drain the fuel into a container, and dispose of
contents in accordance with local environmental
regulations.
WARNING
Be sure that the fuel inlet and return valves are
returned to the open position before cranking the
engine. Engine damage can result if valves are in the
wrong position when the engine is cranked or started.
Environmental damage can also occur.Use the
following procedure for further information. Refer to
Procedure 006-999 in Section F.
Setup
With Fuel Filter Diagnostic Test Ports
Use the following steps to check the fuel filter restriction to
measure the pressure drop across the fuel filter.
NOTE: The fuel inlet and outlet are labeled on fuel filter
head using text or arrows. Figures do not necessarily
display the true orientation of the inlet or outlet of the fuel
filter.
Install an M10 male Compuchek™ fitting, Part Number
3824842, on the diagnostic port on the inlet side of the
fuel filter.
Connect a fuel pressure gauge to the Compuchek™
fitting.