Hunter H33 - Pickups and Strainers; Pick-ups; Strainers Maintenance; A;C Pickup and Strainer

Hu
nt
e
r
33
• Water S
y
stems
9
.4
9
.3 Picku
p
s and Strainers
There are various pickups and strainers installed
aboard
y
our boat. Here we will discuss the pick-ups
an
d
stra
i
ners assoc
i
ate
d
w
i
t
h
t
h
e water s
y
stems.
9
.3.1 Pick-u
ps
P
ick-ups, or throu
g
h hulls are placed in various locations
in the hull of
y
our boat. The intakes usuall
y
have a ball t
y
pe
valve which controls the flow of raw sea water to the s
p
e-
c
i
f
ic component, or s
y
stem associated with the pick-up.
CAUTION
! !
It is ver
y
important that
y
ou ensure that the intake
v
alve is open before usin
g
a raw water supplied s
y
s-
t
em. Failure to do so could dama
g
e or break down a
s
y
stem or component.
9
.3.2 Strainers
Your boat is equipped with strainers that strain the raw
water taken in the thru hulls or pickups for ob
j
ects that
c
ould dama
g
e the impeller or pump equipment.
S
trainers
are equipped with a screen or a
f
ilter inside that collect
o
b
j
ects taken in. The
y
must be cleaned as part of routine
m
a
int
e
n
a
n
ce
.
To clean a strainer, first, make sure that the suppl
y
valve
is in the
Off
or closed position. Failure to close the intake
o
r seacock could result in a
f
looded boat. Next, remove
the “collector” or
g
lass encasement that houses the
screen. Remove an
y
ob
j
ects collected inside and wash
th
e
sc
r
ee
n
.
9
.3.3 A/C Pickup and Strainer
(
Air Conditionin
g
Option
)
At the end o
f
this section,
y
ou will
f
ind an illustration o
f
the
A/C coolin
g
water arran
g
ement. It is important to alwa
y
s
e
nsure that the intake valve
(
see mechanical arran
g
e-
ment in the Boatin
g
S
a
f
et
y
C
hapter, as well
)
is alwa
y
s
o
pen before usin
g
the A/C S
y
stem. In the pumps sub-
section o
f
this chapter
y
ou will see the ima
g
e o
f
these
c
omponents. Fi
g
. 9.2.
I
f
y
ou purchased
y
our boat with the air conditionin
g
o
ption,
y
ou will
f
ind the documentation
f
or the operation
o
f this s
y
stem in the owner’s packet of the manufacturer’s
o
wner’s
/
operator’s manuals
.
9
.3.4 En
g
ine Seacocks and Strainers
It is a ver
y
important
f
unction
f
or
y
our main en
g
ines to
remain a specific temperature when operatin
g
. This is
done with the aid o
f
raw water
f
rom the main en
g
ine
seacocks. Heat
f
rom the closed coolin
g
s
y
stem on the
e
n
g
ines is transferred to the cooler seawater throu
g
h
heat exchan
g
ers inside the en
g
ine. The raw water is then
dischar
g
ed throu
g
h the exhaust
.
To clean
y
our main en
g
ine strainer,
f
irst close the main
e
n
g
ine seacock, remove the top cover on the strainer
r
e
m
o
v
e
t
he
sc
r
ee
n
a
n
d
clea
n
.
CAUTION
! !
A
lwa
y
s ensure en
g
ine, or
g
enerator seacocks, or
i
ntakes are open before startin
g
. Failure to do so
c
ou
ld
over
h
eat an
d
a
d
ama
g
e t
h
ese components
.
Be
f
ore re-installin
g
the cap onto the strainer, check the
‘o’ rin
g
that is the seal on the cap. Check for wear, or
leaka
g
e. Replace i
f
needed
(C
ontact
y
our dealer
f
or
replacement
)
.
WARNING
! !
H
ot coo
l
ant un
d
er pressure ma
y
b
o
il
or exp
l
o
d
e an
d
c
ause burns or other personal in
j
ur
y
when the pres-
sure cap is removed. Allow the en
g
ine to cool, then
open t
h
e cap s
l
ow
ly
to a
ll
ow an
y
pressure to vent
before completel
y
removin
g
the cap.
I
ma
g
e s
h
ow
i
n
g
t
he intake valv
e
e
a
nd the straine
r
r
for the A/C s
y
s
-
-
t
em. Note th
e
e
ball t
y
pe valves.
Wh
en t
h
e
h
an
dle
e
p
arallel to th
e
e
suppl
y
line then
i
t
i
s
i
n t
h
e o
p
en
p
osition
.