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ManualsBrandsCummins ManualsOtherPart 2 ISB and OSB (Common Rall Fuel system) Service manual
51525354555657585960
Fuel Pump ISB, ISBe and QSB (Common Rail [...]
Page 5-28 Section 5 - Fuel System - Group 05
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Marine Applications
WARNING
Batteries can emit explosive gases. To reduce the
possibility of personal injury, always ventilate the
compartment before servicing the batteries. To
reduce the possibility of arcing, remove the negative
(-) battery cable first and attach the negative (-)
battery cable last.
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.
• Install the valve cover lubrication vent flex hose
connection at the block mounted adapter. Refer to
Procedure 003-018 in Section 3.
• Apply a counter-torque to the fitting on the high-
pressure pump to reduce the possibility of a leak or a
loose fitting. Install the high-pressure fuel supply line
from the fuel pump to the fuel rail (flared connection).
• Install the low-pressure fuel supply lines. Refer to
Procedure 006-024 in Section 6.
• Install the low-pressure fuel drain lines. Refer to
Procedure 006-013 in Section 6.
• Connect the fuel control actuator electrical connector.
• Install the belt guard section located in front of the sea
water pump. Refer to Procedure 008-001 in Section 8.
• Connect the batteries. Refer to the OEM service
manual.
• Prime the fuel system. See the Prime step in this
procedure.
• If the fuel pump was replaced due to a fuel leak from
the weep hole or a fuel in oil complaint, then it is
necessary to measure the fuel inlet restriction and fuel
drain line restriction. A fuel line restriction can result in
a fuel pump leak. Use the following procedures to
check fuel inlet restriction and drain line restriction.
Refer to Procedure 006-020 in Section 6. Refer to
Procedure 006-012 in section 6.
Operate the engine and check for leaks.