CLEAN COOLING FINS
112
IMPORTANT SERVICE MESSAGE
ABOUT ALL ENGINES
HOW
TO
GET
THE
VERY LONGEST
ENGINE LIFE
1.
CHANGE
THE
OIL
MORE OFTEN
THAN
RECOMMENDED
BY
THE
ENGINE
MANU-
FACTURER!
2.
SERVICE AI R
CLEAN
ER
REGU LARLYi
3.
KEEP
THE
ENGINE
COOLING
FINS FREE
FROM
DIRT
AND
DEBRIS!
It
Is
important
to
change the engine oil more of-
ten than the engine manufacturer recommends,
to
regularly check and service the air cleaner,
and
to
always clean away dirt and debris from
the engine cooling fins, if
you
want
to
get the
very LONGEST life from your Troy-Bilt Tiller
Engine
and
avoid costly engine repairs.
Unlike
other
engine
driven
equipment
around
your
home,
your
tiller
will be used
under
the
most
adverse
operating
conditions,
often
for
ex-
tended
time
periods, with
continual
exposure
to
abrasive,
dry
dust,
dirt
and small particles.
All of this can
enter
your
engine
cylinder
and
crankcase
through
the
air cleaner
if
you
do
not
service it regularly.
Dirt
coming in
through
improperly
installed
or
poorly
serviced
air
cleaners can
wear
out
an
en-
gine much sooner than
many
long
hours
of
tiller
operation. Your
engine
consumes
about
8,000
gallons
of
air
for
every gallon
of
gasoline
it
burns. With that
kind
of
ratio, it's
just
common
sense
to
keep the
air
cleanerclean.
Dirty
oil
also causes
engine
failure. Please
change the oil every 10
operating
hours-or
even sooner if
conditions
are
dry
and dusty.
Section 4
of
this manual gives
directions
for
changing
oil
for
the
first
time
on a new engine.
Use clean oil
of
a
good
quality
that
is rated SE
or
SD
by
the American Petroleum
Institute
(API).
Look
for
the rating stamped
on
the
top
of
the
can
or
printed
on
the
label. Also,
for
till-
ing, be sure
the
oil is No. 30 viscosity,
if
avail-
able,
or
10W-30
multi-viscosity.
In
order
to
keep
your
engine
cool,
it
is
impor-
tantthatthecoolingfins
on
the
engine
be
clean-
ed
to
remove all
dirt
and debris. If
your
engine
becomes overheated
due
to
obstructed
air
fins,
it
could cause serious damage
to
the
engine.
IF YOUR AIR CLEANER IS
THE
POLYURETHANE (PLASTIC SPONGE) TYPE:
Check the
air
cleaner
for
cleanIiness before
us-
ing the
tiller
each time.
Check
it
at least every
two
hours
during
operation
if
you
are
tilling
for
long periods,
or
even every
half
hour
if
condi-
tions are extremely dusty. If
the
sponge
is
dirty,
here's
how
to
clean it:
Remove
the
element (as
pictured
in
Photo
7/47A).Wash
it
by squeezing
it
in a
detergent
and water solution,
or
a solvent
such
as
gaso-
line, kerosene
or
mineral spirits. It's
just
like a
sponge. Rinse it, and squeeze
out
the
cleaning
solution. Then re-oil
it
by
applying
about
two
ta-
blespoons
of
motor
oil
to
the
element.
Work
it
into
the element. Squeeze
out
any
excess
oil
and
wipe it
off
with a paper
towel
or
clean
cloth.
Then put
the
element back in
the
case.
If kept clean,
polyurethane
elements
will
last
almost
indefinitely!
But,
when
they
can't
be
cleaned anymore, replace
them
with
an
air
cleaner element (Tecumseh
part
#31700)
which
can be
obtained
at
the
Tecumseh
Service
Dealer's
shop
or
from
our
Parts
Department.
(Photo
7/47
A) Clean the
air
cleaner.
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