Troubleshooting - Craftsman 917.28608 Operator's Manual

Lawn tractor 20.0 hp 42" mower electric start automatic transmission
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BATTERY
• Fully charge
the battery
for storage.
• After a period
of time in storage,
battery
may require
recharging.
• To help prevent
corrosion
and power
leakage
during
long periods
of storage,
battery
cables
should
be disconnected
and battery
cleaned
thoroughly
(see
"TO CLEAN
BATTERY
AND TER-
MINALS"
in the Maintenance
section
of
this manual).
• After cleaning,
leave
cables
discon-
nected
and place cables
where
they
cannot
come
in contact
with battery
terminals.
• If battery
is removed
from tractor
for
storage,
do not store
battery
directly
on
concrete
or damp
surfaces.
ENGINE
FUEL SYSTEM
IMPORTANT:
It is important
to prevent
gum deposits
from forming
in essential
fuel
system
parts such as carburetor,
fuel
hose,
or tank during
storage.
Also,
alco-
ho! blended
fuels
(called
gasohol
or using
ethanol
or methanol)
can attract
moisture
which
leads to separation
and formation
of
acids during
storage.
Acidic
gas can dam-
age the fuel system
of an engine
while
in
storage.
• Empty
the fuel tank by starting
the en-
gine and letting
it run until the fuel lines
and carburetor
are empty.
• Never
use engine
or carburetor
cleaner
products
in the fuel tank or permanent
damage
may occur.
• Use fresh fuel next season.
TROUBLESHOOTING
CHART:
NOTE:
Fuel stabilizer
is an acceptable
alternative
in minimizing
the formation
of
fuel gum deposits
during
storage.
Add
stabilizer
to gasoline
in fuel tank or stor-
age container.
Always
follow
the mix ratio
found
on stabilizer
container.
Run engine
at least 10 minutes
after adding
stabilizer
to allow
the stabilizer
to reach
the car-
buretor.
Do not empty
the gas tank and
carburetor
if using fuel stabilizer.
ENGINE
OIL
Drain oil (with engine
warm)
and replace
with clean
engine
oil.
(See "ENGINE"
in
the Maintenance
section
of this manual).
CYLINDER(S)
1,
Remove
spark
plug(s),
2.
Pour one ounce
of oil through
spark
plug hole(s)
into cylinder(s).
3.
Turn ignition
key to "START"
position
for a few seconds
to distribute
oil.
4.
Replace
with new spark
plug(s).
OTHER
• Do not store gasoline
from one season
to another.
Replace
your gasoline
can if your can
starts to rust.
Rust and/or
dirt in your
gasoline
will cause
problems.
• If possible,
store your tractor
indoors
and cover
it to give protection
from dust
and dirt.
• Cover
your tractor
with a suitable
pro-
tective
cover that does
not
retain
mois-
ture.
Do not use plastic.
Plastic
cannot
breathe
which
allows
condensation
to
form
and will cause
your tractor
to rust.
IMPORTANT:
Never
cover
tractor
while
engine
and exhaust
areas
are still warm.
See appropriate
section
in manual
unless
directed
to Sears service
center
1
2
3
4
5
6
7
8
CAUSE
Out of fuel.
Engine not "CHOKED" properly.
Engine flooded.
Bad spark plug.
Dirty air filter.
Dirty fuel filter.
Water in fuel.
1
4
5
6
7
Loose or damaged
wiring.
PROBLEM
Will not start
CORRECTION
Fill fuel tank.
See "TO START ENGINE"
in
Operation
section.
Wait several
minutes before
attempting
to start.
Replace
spark plug.
Clean/replace
air filter.
Replace fuel filter.
Empty fuel tank and carburetor,
refill tank with fresh gasoline
and
replace fuel filter.
Check all wiring.
29

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