43
Fig.E20
I.
Clean the spark
plug
and check the
gap
at
the electrodes
Fig.E19
Air
Cleaner
Housing
2. Air Cleaner Element
6.4-
lOllS-Hour
Maintenance
CAUTION!
Before removing the spark
plug,
clean the area around the plug to prevent dirt
and
dust
from
getting
into
the engine's
internal parts
Every 10 to
15
hours of
operation:
Remove
and clean
the spark plug. See
Fig.E20.
Adjust
the
spark plug electrode gap to
0.6-0.7[1)111.
Replace the spark plug as necessary
6.3-10-Hour
Maintenance
CAUTION!
Do
not
operate the machine
if
the
air
cleaner or
element is
damaged,
or
if
the
element
is
wei
or water soaked
Every 10 hours of operation (more frequently in dusty
or
dirty conditions):
Remove
the air cleaner element from the
air
cleaner
housing
and
clean
it thoroughly with soap
and
water.
Rinse
and
dry
thoroughly.
Add
a
few
drops
of
oil
and work it in,
then
reassemble the
element.
See
Fig.E
19
lFig.E18
1.
Keep
cooling fins clean
2.
Keep
air
passages
clean
6.2-
Daily Maintenance
Prior
to
each
work
day,
perform
the following:
1.
Remove
all dirt
and
debris from
the
engine,
check the cooling
fins.
and air cleaner
for
clogging,
and
clean
as
necessary. See
Fig.E
18
2.
Carefully
remove any
accumulating
of
dirt
or debris
from
the
muffler
and
fuel
tank,
dirt build-up in these
areas
can
lead
to engine
overheating, fire,
or premature
wear.
3. Check for loose or
missing screws
or
components.
Make sure the
cutting
attachment
is
free
of
debris
and
securely
fastened.
4,
Check
the entire machine
for
leaking
fuel
or
grease.
S.
Make sure
nuts,
bolts,
and
screws
(except
carburetor adjusting
screws) are
tight.
Make
sure the muffler
is
well
secured
and in good
condition.
A
WOIll
or
damaged
muffler
is
a fire
hazard
and may also
cause
hearing loss.
6.] .2-
Spark
Plug
Keep
the
spark plug and wire connections
tight
and clean