SAFETY
SHUTDOWN
SWITCHES
SAFETY
SHUmOWN
SWITCHES
This engine is protected by
three
shutdown switches
and
two
fuseS.
Should a shutdown
occur,
do
not
attempt
to
restart
without_jUulin,g
and
correcting
the
cause.
Refer
to
·
the
heading
Engine
Siarts,
runs .and
then
shuts
down
in the
ENGINE
TR.OUBLESHOarING
s;ection
of
this
manual.
OVERSPEED PC
BO~
The
overspee1:i"PC
~ard
inside
th~
control panel will shut ·
the engine down "if the engine speed (RPM'S) exceeds the
,operating speed required to run the generator. The overspeed
PC
board
will reset itself once the engine shuts down. ·
10AfUSE
OVERSPEED PC BOARD
MAIN
AC
CIRCUIT BOARD
MAIN
CIRCUIT
BREAKER
AC
The
mam
circuit
breaker
at the control panel
will
automatically
disc;:onnect
the
AC
power
if
there is an
electrical overload.
Tum
off
the
AC
breaker and remove the
10
amp
panel
fuse
when servicing the unit
as
a safety
precaution.
FU$ES
A
JOA
fuse
lOca.t.ed
on the side
of
the control panel protects
the
DC
el~trical
wiring.
If
an
.electrical
overload occurs the
fuse will blow
and
shut the engine
down.
An 20A in-line fuse protects the battery .charging circuit
If
this
fuse
fails,
.the
engine will continue
to
run but the battery
will
.IJ.~t
be
charging.
10AFUSE
.2DAFUSE
BATTERY
CHARGING
11
EXHAUST
TEMPERATURE
SWITCH
An exhaust
temperature
switch located at the
base
of
the
exhaust elbow sensors an excessive exhaust
temperature
(an
inadequate supply
of
cooling
water).
A
temperature
above
240°
F will shut the engine
down.
Inspect
the
cooling
system,
wat.er
pump,
pump
belt,
seacock,
water
strainer,
water hoses, etc.
This
switch will reset itself
when
the
exhaust
cools.
LOW
Oil
SWITCH
EXHAUST
8.BOW
Located just
to
the
right
of
the oil
:filt.er,
this
switch
~
the
engine's oil pressure
if
the oil pressure falls
to
below
5 psi.
This
switch
will
shut the engine
down.
Check
the
angle
of
operation, dipstick oil level and oil
filter.
The
switch
will reset itself.
LOW
OIL
PRESSURE
SWITCH
67
OJt
FIL1tH
{);
J
HIGH
WATER
TEMPERATURE
SWltcH
(Fresh
Water
:Cooled
:Model)
-·~
\.
\
A high water temperature switch is located at
the
thermostat
housing,
Normally closed,
this
switch, should the
fresh
water
coolant's operating
temperature reach
approximately
210"F
(99°C),
will open and shut the engine down.
This
switch
resets itself at l95"F (107°C). ·
--~==~
·
THERMQSTAT
HOUSING
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