Hunter H45DS - Engine Operations and Safety

Hunter 45
DS
• En
g
ines and Transmissions
1
1.
4
Th
ere are two separate s
y
stems t
h
at coo
l
y
our en
gi
nes.
The raw water coolin
g
s
y
stem is described in detail in
y
our
“
Water
Sy
stems”
(
section 9
)
o
f
this manual. The
i
nterna
l
en
gi
ne coo
li
n
g
s
y
stem
i
s supp
li
e
d
by
t
h
e en
gi
ne
manu
f
acturer. This s
y
stem
f
eatures a closed anti
f
reeze
c
oolant bottled in a reservoir attached to the en
g
ine.
C
oolant is circulated throu
g
h the en
g
ine in separate
c
hannels than the raw water coolin
g.
Note: Be sure the engine seacocks are open before you start
the engine. Failure to open them will cause damage to the
water pump impeller.
DA NG ER
! !
burns or other personal in
j
ur
y
when pressure cap is
r
emoved. Allow en
g
ine to cool. Open pressure cap
slowl
y
to allow pressure to vent before removin
g
cap.
1
1.1.5 Emer
g
enc
y
Equipmen
t
Your en
g
ines are set up to operate under the tou
g
hest
c
on
di
t
i
ons.
H
owever, s
h
ou
ld
t
h
e o
il
p
ressure
b
ecome
too low, or the en
g
ine overheat, alarms will sound at
th
e
h
e
lm. Th
e
r
e
a
r
e
se
v
e
r
a
l
co
n
d
iti
o
n
s
th
a
t will
sou
n
d
an alarm and save
y
ou from dama
g
in
g
y
our en
g
ines.
Be sure and stud
y
y
our documentation supplied b
y
the
e
n
g
ine manu
f
acturer to ensure
y
ou will know what the
a
l
arm means s
h
ou
ld
one soun
d
on
y
our
b
oat.
11.2 Transmission
s
Th
e transm
i
ss
i
on
h
as a re
d
uct
i
on
g
ear w
hi
c
h
d
r
i
ves
the propeller at a slower rotation speed than that o
f
the
e
n
g
ine.
g
C
onsult
y
our
O
EM manual for complete transmission
in
fo
rm
a
ti
o
n.
11.3 O
p
erations and Maintenanc
e
In the Underwa
y
C
hapter,
(C
hapter 12
)
y
ou will
f
ind
instructions on startin
g
y
our en
g
ines. Also detailed in the
manufacturer’s documentation supplied with
y
our boat,
y
ou will
f
ind instructions on maintenance items that
y
ou
ma
y
perform
y
ourself. Should
y
ou have an
y
questions
re
g
ar
di
n
g
ma
i
ntenance or operat
i
ons not prov
id
e
d
,
b
e
sure and consult
y
our boat dealer.
Important: Shift the transmission only when the engine speed
is at or below 1000 rpm. Shifting at higher engine speeds could
severely damage the boat, the transmission, and the engine.
Allow the transmission to remain in neutral for a few seconds
before reversing the rotation of the propeller.
1
1.3.1 H
y
drolock
Hyd
ro
l
oc
k
i
s cause
d
by
water enter
i
n
g
t
h
e en
gi
ne c
yli
n-
ders throu
g
h the exhaust. The
f
ollowin
g
conditions can
c
ause h
y
drolock.
E
n
g
ine shutdown: A sudden en
g
ine shutdown while the
boat is movin
g
ma
y
f
orce water into the exhaust s
y
stem.
Anchored or adri
f
t: Rou
g
h seas ma
y
cause rockin
g
severe enou
g
h to cause water to splash out o
f
the mu
f
-
flers into the en
g
ine while the en
g
ines are shut down,
anchored
f
rom the stern, pullin
g
a sea anchor, or adri
f
t.
Improper hoistin
g
:
O
perators are sometimes tempted to
reduce hoistin
g
time
f
or propeller chan
g
es b
y
hoistin
g
onl
y
the boat stern.
S
uch hoistin
g
can cause residual water in
t
h
e ex
h
aust s
y
stem to enter t
h
e en
gi
ne c
yli
n
d
ers.
WARNING
! !
E
n
g
ine manufacturers do not warrant
y
items dam-
ag
e
d
by
hyd
ro
l
oc
k.
1
1.3.2 En
g
ine / Generator Exhaus
t
Your en
g
ine exhaust contains
C
arbon Monoxide! Be
sure and read the Boatin
g
S
a
f
et
y
C
hapter and know
the dan
g
ers and how to avoid them. Carbon Monoxide
will kill
y
ou, and in most situations, b
y
the time
y
ou
k
now somethin
g
is wron
g
it could be too late. Know
.
Oil filler ca
p
.
Dip
st
i
c
k
Fi
g
. 11.
3