Service Manual

Fuel Cooler ISB, ISBe and QSB (Common Rail [...]
Page 6-104 Section 6 - Injectors and Fuel Lines - Group 06
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Finishing Steps
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.
CAUTION
Failure to properly prime the fuel system on marine
engines can result in damage to the fuel cooler. Be
sure the drain valve(s) are open. Be sure a good flow
of fuel is present through the fuel cooler by cycling
the keyswitch at least five times before starting the
engine. Refer to Procedure 005-016
CAUTION
Use caution when disconnecting or removing fuel
lines, replacing filters and priming the fuel system
that fuel is not spilled or drained into the bilge area.
Do not drop or throw filter elements into the bilge
area. The fuel and fuel filters must be discarded in
accordance with local environmental regulations.
CAUTION
Zinc plugs expand and can break off during removal.
Inspect the zinc plug to make sure it is in one piece. If
not, it must be replaced with a new zinc plug, and the
broken pieces must be retrieved from the aftercooler
to prevent damage to components downstream in the
sea water system.
• Connect the fuel drain line from the fuel cooler to the
fuel tanks. Refer to the OEM service manual.
• Connect the fuel drain line from the combined fuel
manifold to the fuel cooler at the fuel cooler
connection. Refer to Procedure 006-013
• Open the supply and return valves to the engine. Refer
to the OEM service manual.
• Open the sea water supply line(s). Refer to the OEM
service manual.
• Prime the fuel system. Refer to Procedure 005-016
Operate the engine and check for leaks.