Hunter H31 - Mechanical Systems

Hu
nt
e
r
31
• M
a
int
e
n
a
n
ce
dissolve dirt and
g
rime, but will not harm the environment
when pumped overboard. If
y
ou keep the bil
g
e clean, it
is much easier to identi
fy
leaks or other problems i
f
the
y
should develop
.
Important: The Federal Water Pollution Control Act prohibits
the discharge of oil or oily waste into or upon navigable waters
in the United States. Violators are subject to a penalty.
1
4.3.5 Shower Sum
p
The shower drains into a sump pump which keeps hair,
soap scum, and bacteria
f
rom buildin
g
up in the bil
g
e
an
d
d
eve
l
op
i
n
g
an o
d
or.
P
er
i
o
di
ca
lly
c
l
ean out t
h
e pump
f
ilter to prevent clo
gg
in
g
the pump.
14.4 Mechanical S
y
stems and Components
R
efer to the manuals supplied b
y
the boat component
manufacturers for their recommended
p
eriodic mainte-
nance. The manuals ma
y
indicate maintenance require-
ment, in addition to, the minimum maintenance tasks
listed in the followin
g
charts.
Note: In case of conflicts between the maintenance informa-
tion in this manual and the manuals supplied by the equipment
manufacturer, the equipment manuals take precedence.
1
4.4.1 En
g
ine Oil
S
ee en
g
ine operatin
g
manual for recommended oils and
c
orrect procedures
f
or checkin
g
and replenishin
g
oil
.
WARNING
! !
Hot coolant under pressure ma
y
boil over and cause
b
urns or ot
h
er ser
i
ous
i
n
j
ur
y
w
h
en cap
i
s remove
d
.
A
llow en
g
ine to cool. Open pressure cap slowl
y
to
a
llow pressure to vent before removin
g
cap.
1
4.4.2 En
g
ine Coolan
t
S
ee en
g
ine operatin
g
manual for recommended coolants
and correct procedures
f
or checkin
g
and addin
g
coolant.
1
4.4.3 En
g
ine Exhaus
t
V
isuall
y
inspect the en
g
ine and
g
enerator exhaust s
y
s-
tems
(
hoses,
j
oints, manifolds, etc.
)
for leaks. Make sure
all clamps are ti
g
ht.
C
heck hoses and exhaust boxes
for dama
g
e. Replace an
y
dama
g
ed exhaust s
y
stem
c
om
p
onent.
Note: Any discoloration around a joint or gasket usually indi-
cates a leak.
1
4.4.4 Transmission Oi
l
Refe
r t
o
th
e
tr
a
n
s
mi
ss
i
o
n m
a
n
ua
l
fo
r
de
t
a
il
ed
r
eco
mm
e
n-
d
at
i
ons a
b
out c
h
ec
ki
n
g
an
d
a
ddi
n
g
o
il
.
1
4.4.5 Fuel Filter
R
e
f
er to the en
g
ine manual
f
or correct in
f
ormation
about checkin
g
and replacin
g
the
f
uel
f
ilter on
g
asoline
e
n
gi
nes.
For diesel en
g
ines, check all
f
uel
f
ilters dail
y
to remove all
sediment and water from the filter. Ins
p
ect the canister
f
or possible corrosion or deterioration. Replace canister
i
f
y
ou observe an
y
corrosion or other deterioration.
R
eplace the
f
ilter element at least once each season,
more o
f
ten i
f
there is contamination o
f
the
f
uel s
y
stem.
Alwa
y
s replace the bowl
g
asket each time the filter is
reassembled.
C
heck care
f
ull
y
f
or an
y
si
g
ns o
f
leaka
g
e
.
1
4.4.6 Fuel Line Connections
C
heck all
f
uel line connections
f
or leaks at least once a
y
ear.
Tigh
ten as necessar
y.
Important: Be careful when tightening fittings. Over-tightening
can crack the flair fittings and flair nuts. Use only tube wrench-
es when tightening connections.
1
4.4.7 Batteries
WARNING
! !
Avoid spillin
g
batter
y
electrol
y
te into the en
g
ine
c
ompartment or bil
g
e. Also, avoid
g
ettin
g
saltwater
o
n or
i
n t
h
e
b
atter
y
.
Ei
t
h
er con
di
t
i
on can create a
g
as that is explosive and poisonous if inhaled. If
y
ou spill electrol
y
te, ventilate the area. Neutralize
t
he acid in the electrol
y
te with bakin
g
soda. Clean
u
p neutralized electrol
y
te with a disposable ra
g
or
paper towel
.
We recommend
y
ou use Gel t
y
pe batteries
.
Althou
g
h these batteries are relativel
y
maintenance
f
ree,
some simple routine maintenance can increase the effec-
tiv
e
n
ess
a
n
d
li
fe
.
14.
6