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94
Maintenance Section
Fuel System - Prime
Illustration 74
Element
(2) Fuel valve
(3) Vent screw
Illustration 75
Canister
(4) Vent screw
Copyright of Perkins Engine Company Limited. NOT FOR REPRINTING OR RESALE
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Illustration 76
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
Note: Some fuel system will use gravity to prime the
primary fuel filter. When gravity is used to deliver the
fuel, 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 77 .
• Hand priming pump
• In-line hand priming pump
• Electrical priming pump
• Transfer pump that is operated by the starting
motor
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