Installation manual
ENGINE
TROUBLESHOOTING
The
following
troubleshooting
table
describes
certain
problems
relating
to
engine
service,
the
probable
causes
of
these
prob-
lems,
and
the
recommendations
to
overcome
these
problems,
NOTE:
Fuel
run/shut off solenoid (Optional).
Problem
Probable
Cause
No
pan,1
indications;
fu,lsol,nold
1.
Battel)l
switch
not
on.
or
fuel
pump
Is
not
working
(key
switch
is
on
and
PREHEAT
button
Is
depressed).
2.
20-amp
ch'cult
breaker
tripped.
3.
1
O-amp
breaker
tripped
on
preheat
solenoid
4.
loose
batlel)l
connections.
5.
Preheat
solenoid
not
operating.
START
button
is
depressed,
no
starter
1.
Connection
to
solenoid
faulty.
engagement.
.
2.
Gear
shift
not
in
neutrel.
3.
Faulty
switch.
4.
Faulty
solen'oid.
5.
loose
battel)l
connecllons.
6.
low
battel)l.
NOTE:
The
engine's
electrical
system
is
protected
by a
20
ampere
manual
reset
circuit
breaker
located
all
a
bracket
at
the
back
of
the
engille.
The
preheat
solelloid
is
niounted
on.
the
same
bracket.
Verilicallon/Remedy
1.
Check
switch
andlor
battel)l
connections.
2.
Reset
breaker;
n
breaker
Irlps
again,
check
preheat
solenoid
circuit
and
check
circuit
for
shorts
to·
ground.
3.
Check
the
~ollage
both
al
and
after
the
breaker
on
Ihe
preheat
solenoid.
4.
Check
(+)
connection
to
starter
solenoid
and
(-)
connection
to
engine
ground
stUd.
Check
battel)l
cable
connections.
5.
Check
solenoid
"s"
terminal
for
voltage.
1.
Check
connection.
2.
Gear
shift
must
be
In
neulrel
(see
NEUTRAL
SWITCH
under
HURTH
HSW
TRANSMISSIONS).
3.
Check
switch
wilh
ohmmeter.
4.
Check
that
12
volts
are
present
at
the
solenoid
connection.
5.
Check
battel)l
connections.
6.
Check
battel)l
charge
state.
START
button
15
depressed;
panel
1.
Poor
connections
to
fuel
solenoid.
1.
Check
connections.
indications
OK;
starter
solenoid
OK;
Check
that
12
volts
are
present
althe
(+)
connection
on
the
fuel
solenoid
n~t
functioning.
2.
Defective
fuel
solenoid.
2.
fuel
run
solenoid.
Engine
cranks,
but
does
not
1.
Faulty
fueling
system.
1.
Check
that
fuel
valves
are
open.
start.
fuel
solenoid
energized.
1a.
Check
for
air
In
fuel
system.
Bleed
air
from
fuel
system.
1b.
Fuel
filters
clogged.
Replace
filters
and
bleed
air
from
fuel
system.
2.
Preheat
solenoid
faulty.
2.
Check
solenoid.
3.
Low
battery
power.
3.
Swllch
to
combine
house
and
start
batteries.
3a.
Replace
batteries.
Engine
can't
be
stopped.
1.
Faulty
DC
allernator.
1.
Remove
Exc.
connection
at
alternator:
repair
alternator.
2.
Dlsconn.ct
fuel
shut-off
cable.
2.
Check
connection
at
shut-off
lever.
Pul11ever
back
to
close
offlhe
lu.1
3.
Fuel
run
solenoid
will
not
de-en~rgize.
3.
Manually
shut
the
engine
down
using
the
shut
off
lever
adjacent
to
the
throttle
lever
on
the
engine.
Battery
runs
down.
1.
Oil
pressure
switch.
1.
Observe
if
gauges
and
panel
lights
are
aclivaled
when
.nglne
.
Is
not
running,
Test
the
oil
pressure
switch:
2.
High
resistance
leak
to
ground.
2.
Check
wirlng.lnsert.sensitiv,
(0
-
.25
amp)
meter
In
battel)l
lines.
(Do
not
start
engine.)
Remove
connections
and
replace
after
short
is
located.
3.
Low
resistance
leak.
3.
Check
all
wires
for
temperature
rise
to
locate
the
fault.
4.
Poor
battety
connectIons.
4.
Check
cable
connections
at
battery
for
loose
connect10~S,
corrosion
5.
DC
alternator
not
charging
5.
Check
connections,
check
belt
tens10n,
test
alternator.
See
-
(tachometer
notop,retlngl.
OC
ELECTRICAL
SYSTEM/ALTERNATOR.
Battel)l
not
charging
1.
DC
charge
circuit
faulty.
1.
Pertorrn
DC
voltag.
check
of
g.n.retor
charging
circuit.
See
7iJsting
the
B,Uety
Charging
Circuit
2.
2.
Check
drive
belt
tension;
alternator
should
turn
freely.
Check
.
Alternator
IIrlve.
for
loose
connections.
Check
output
with
Voltmeter.
Ensure
12
volts
are
present
at
the
Exc.
terminal.
(continued)
EI1g1nes
& Generators
35