Illustration 61 g01327363
Spin-on filter with fuel priming pump
(5) Vent screw
Vent screw (3) is installed on the filter that has an
element. Vent screw (4) is installed on the fuel filter
that has a canister. Vent screw (5) is installed on the
spin-on filter.
Priming the system
Ensure that the air is removed from the primary filter.
Loosen vent screws (1). Refer to illustration 58 .
Operate the priming pump. When fuel free from air
flows from the vent screw tighten the vent screw.
Note: Some fuel system will use gravity to prime the
primary fuel filter. If gravity is used ensure that the
fuel tank is full and that all stop valves in the fuel line
are open.
There are four different types of systems that can be
installed on the engine to prime the fuel system.
Refer to illustration 62 .
• Hand priming pump
• In-line hand priming pump
• Electrical priming pump
• Transfer pump that is operated by the starting
motor
SEBU8311-09
81
Maintenance Section
Fuel System - Prime
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