Hunter 49 Operator'S Manual Download

Page: 72 / 196

WARNING

Fuel leaking from any part of the fuel system can

lead to fire and explosion that can cause serious

bodily injury or death. Inspect system before

fueling.

CAUTION

Using the wrong type of fuel will result in severe

damage to the engines. Refer to your owner’s

manual for fuel recommendations.

DANGER

Leaking fuel is a fire and explosion hazard.

Personal injury or death could occur.

5.1.3 Fuel Tank Fill & Vent

The fuel tank fill fitting is located on the stbd. side on the

stern. The fuel tank also has a hull vent fitting. This fitting

is also located on the port side near the fuel fill. You can

see the fill in detail in Fig. 5.2, on page 5.3.

The fuel tank vent serves as a pressure / vacuum release

and a safety overflow. The vent is a thru hull fitting

with a flame arrestor, so it is imperative that you keep

the screens clear and in excellent repair. Replace the

screen immediately if it becomes damaged or displaced.

Periodically check the vent to see that it is not clogged.

The fuel fill and fuel vent hoses, fittings, and connec-

tions should be inspected for leaks and signs of dry rot

or swelling at least once a year. If any of these condi-

tions are present, have an authorized service technician

inspect the fuel system immediately. If a leak is found,

turn off battery switches, disconnect shore power, and

disable any possible source of ignition. Contact your

dealer or Customer Service immediately.

DANGER

The use of any hose other than the USCG Type A1

or A2 could result in fuel leakage. Leaking fuel is a

fire and explosion hazard. Personal injury or death

could result.

5.2 Fuel Supply Lines and Hoses

If any fuel fill or vent hose's are in need of replacement,

ensure that only USCG Type A1 or A2 are used. The

engine has a fuel supply hose that runs from the pickup

tube in the fuel tank to the fuel water separator (com-

monly referred to as the fuel filter), then from the filter to

the engine. Also, the engine has a fuel return hose that

runs from the engine back to the fuel tank. If your boat

has a generator, the generator will have somewhat the

same setup, with the supply and return hose. The fuel

supply lines or hoses, fitting, and connections should be

inspected often for leaks and signs of wear, dry rot, chaf-

ing, or swelling. A good way to inspect the fuel hoses is

to run your hand along the length of the hose including

the fittings. Leaks will be revealed as wet spots on your

hand. If any evidence of hose deterioration is present,

have a qualified technician replace all the hoses with

USCG Type A1 hoses immediately!

In Fig.5.3 you can see the fuel supply fittings. The photo

inset shows the close-up of the fuel valve. See Fig.5.5

for the function of the fuel valves.

Note: If a leak is found, turn off battery switches, disconnect
shore power, and disable any source of ignition. Do not start
your engines, the generator, or any devices that could cre-
ate a spark. Contact your dealer or our Customer Service
Department immediately! If hoses need to be replaced, make
sure only USCG Type A1 are used.

5.2.1 Generator Fuel Supply Notice

In Fig. 5.4 we demonstrate the layout of your boat's

fuel pick up lines in the fuel tank. See the Mechanical

Arrangement Drawing in the Boating Safety chapter of

this manual for more location information. In the image

you can see the pick up for the generator is located

higher than the engine pickup

This is a safety feature of your boat, to ensure that the

Hunter 50 • Fuel Systems

5.4