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Pony (see Photo
5-9A}-elean
(do not
oil!)
the
outer
foam
element
every 10
hours; clean
the
inner
paper
filter
every
10 hours
too,
and replace
it every
50 hours.
Juni
or (see
Photo
5-9B
}-rep lace th
e
single
paper filter element after every 25 hours of en-
gine
operation.
Do not
clean
it or
oil
it.
General
Guidelines
for
servicing
all model
air
cleaner
systems:
•
Before remov
ing
the outer me
tal
air
c
leaner
cove
r,
always remo ve any d
irt
o
r
grease in the immediate
vicinity-do not get
dirt
or
grease
or any
foreign materials in
the
carburetor!
•
In s pect
both
the foam pre-cleaner
(if
your
model
comes with one) and the paper
filter for signs of
excessive wear,
tears, or a
loose fit.
•
Wash the foam pre-cleaner on
ly
in a
warm
water
I
liquid detergent
mixture.
Do not
use kerosene or mineral spirits as they could
damage the foam.
Then ri
nse
it
in clear wate
r
and sq
ueeze
it
until
it is dry (don
't
wring
it).
On
ly
the
f
oam pre-cleaner for the Econo-
Horse Tecumseh eng
ine
should be lightly
oiled-squeeze out any excess
oil.
The Junior
Model
Tecumseh engine does not have a
foam pre-cleaner.
•
Wipe the inside of the
metal
air
cleaner
cover and
t
he top of the
air
cleaner base
plate
w
ith
a clean rag to remove dirt and
grime. Don't knock dirt
in the
carburetor!
•
Carefu
lly install
the pre
-c leaner
and
paper f
i lter
inner element, and the metal
cover with its
hardware.
The
fit
of t
hese
parts
must be secure and correct. All parts must be
reassemb
led
as per the original
assembly.
The performance of your
engine
is
dependent
upon
this.
NOTE-
In extremely
dusty
or d
i rty
cond
itions,
in
-
spect and clean the
fi
lter(s) more
often.
SPARK PLUG
MAINTENANCE
NOTE:
Before
you remove the
spark
plug,
brush or blow
away debris from
the
top
of
the
cylinder
head.
This
prevents debris
from
accidentally
falling into the
spark
plug hole.
Every
fifty
(50) hours of
operation,
remove the
spark plug and replace or clean it. If
cleaning,
only scrape it-do not sandblast or wire brush it.
Reset the gap to .030". See engine
literature.
IGNITION
SYSTEM
MAINTENAN CE
Your tiller's
engine
is
equipped with
electronic
ignition. It
does not have
either a
condenser or
points.
Therefore,
you do not
have
to perfo
rm
any
regular
maintenance
on this
system
other
than chec
king,
clea
ning,
and
adjusting
(or re-
placing)
the spark
plug
as
mentioned previously.
AIR
COO
LING
SYSTEM
MAINTENANCE
Since
your
tiller operates
in
such
a
dusty
envi-
ronment,
you
should
frequently check the
en-
gine's
cooling system
for
any type
of
obstruction.
Look
between the
engine cooling
fins
and the
engine
air
shrouds,
and
under the blower
hous-
ing for any trapped
debris.
After the engine has
cooled,
use a
screwdriver
or other tool to remove
any
trapped
debris.
Do
not
remove the
blower
housing unless it
is
abso-
lutely
necessary.
A
WARNING
Failure
to keep your
engine's
cooling
sys-
tem clean
will
cause engine
overheating
and will lead to engine
damage.
BOLO
TINES
Your tiller has
bolo tines
to more
effectively
shred,
chop
,
and
bury the
organic
matter
that
you
are
tilling
back into
your garden soil.
With use, these tines will become
shorter,
nar-
rower,
and
pointed.
When
badly worn,
they
won't
be able to turn
over
as
much
earth as
new
tines.
Compare
your tines
with those
in
Photo
5-1 0
if
you should notice a loss
of tilling depth or poor
power composting.
If
your
tines have
become
too
worn,
you
should
replace them.
MODERATE
r-
WEAR
Photo 5-10
:
Checking
Bolo
Tines
for
wear.
37
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