Hunter 50CC - Fuel Valves

This is a safet
y
feature of
y
our boat, to ensure that the
g
enerator never depletes the fuel to the en
g
ines
.
Generator
Pick-up
gg
5.3 Fuel Valves
Y
ou
r
boa
t h
as
f
ue
l
s
h
u
t
o
ff v
a
lv
es
l
oca
t
ed
a
t th
e
t
a
nk in th
e
supp
ly
li
ne route.
Th
ese va
l
ves are use
d
to start or stop
the
f
low o
f
f
uel throu
g
h the suppl
y
lines.
Note: Even if the fuel supply valves are closed, there may be
fuel in the supply lines to the filters and engines (or generator).
Disconnecting these fittings without properly bleeding the sys-
tem of fuel could result in emptying the fuel filters and causing a
fuel spill. Only a qualified technician should ever make repairs
to your fuel system.
The
f
uel suppl
y
valves are the
“
ball t
y
pe” valves. Turnin
g
the handle so it is perpendicular to the valve bod
y
shuts
o
ff the suppl
y
or return. Turnin
g
the handle so it is in line
with the valve bod
y
opens the valve, as shown in Fi
g
.
5
.
5
.
OP
E
N
OP
EN
SHU
T
SHUT
OPEN
SHUT
OPEN
SHUT
Open Shut
Fuel Valve Illustration
A quick view of the
difference in an open
and shut fuel valve
Fi
g
. 5.5 Example o
f
Fuel
S
uppl
y
Lines and Valves
5.3.1 Fuel Tank Selection Valv
e
With two fuel tank s the boat is also required with valve
for selectin
g
which tank to draw fuel from. The valves
are located in the
f
irst bil
g
e compartment in the main
salon. For
f
uel tank selection, b
y
rotatin
g
both valve
handles for the fuel suppl
y
and one for the return. Ali
g
n
with the placards that mark tank to use
.
Fi
g
. 5.6 Fuel tank selection control valv
e
Note: This configuration may not reflect the configuration of
what your fuel valves are. This can be found in the Fuel System
Arrangement at the end of this chapter.
5.4 Filters
(
Fuel Water Separators
)
The
f
uel supplied to the en
g
ines or the
g
enerator
(
i
f
so
e
quipped
)
ma
y
contact impurities found in the fuel tanks
o
r in the fuel from
y
our supplier. If these impurities are
not removed prior to startin
g
the en
g
ine or
g
enerator, per-
formance ma
y
be seriousl
y
affected. Removal of the fuel
impurities is accomplished b
y
external fuel filters.
5.4.1 Main En
g
ine Filter
s
E
ach en
g
ine has a separate
f
ilter located awa
y
f
rom the
e
n
g
ine. Check the Fuel Arran
g
ement illustration at the
e
nd of this cha
p
ter for the exact location of these filters.
An authorized service technician should replace all filters
annua
lly
pr
i
or to spr
i
n
g
l
aunc
h
.
Th
e
y
ma
y
nee
d
more
f
requent replacement i
f
y
ou notice poor en
g
ine
/g
enerato
r
performance due to contaminated fuel.
You will
f
ind an illustration
f
or the Racor Fuel Water sepa-
Fi
g
.5.
4
E
n
g
ine pick-up
Hu
nt
e
r
50
C
C
• Fuel S
y
stems
5
.
5