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MAINTENANCE
Muffler
NOTE!
_ome mume_,'s arefitted with a catalytic converter, See
"7_ctmic_] d,_g_"to see whether your machine
is fitted with a
caalytic
converter.
The mumer
is designed
to
dampen
the nokse level and
to di_x_ct the exhaust
fumes
away from
the user. The
exhaust
fumes
are hot and
cm_ contain
sparks,
which
cm_ result
in i)_'e if the
exhaust
fumes
am directed
towards
a dry a_d
inflammable
material.
_me
nluftie_
are equipped
with
a
special
spark
arrest
_reen.
If
your machine
is fitted
with
this t.,c_e of sc_en
tt should
be cleaned
regularly,
This
ks
done
using
a wile, brush,
On
muftie_
without
a catalytic
conveaer
the screen
should
be cleaned
weekl N or
r_placed
if necessaLy.
On
nluftiet_
tilted
with
a
catalytic
converter
the
screen
should
be checked
m_d clem_ed monthly.
If" the
screen
is damaged
it should
be replaced,
[f the screen
is
frequently
blocked,
thks can
be a sign that
the function
o1"the catalytic
conve_er
is
impaired.
Contact
your
dealer
to inspect
the muffler.
A blocked
screen
will cause
the engine
1o m, ertieat
msulting
in danage to the
cylinder
and piston.
Also see
under
"_faintenaz_t_'_
NOTE!
NeNer use a Tllachine
with
a defective
mumer.
Cooling system
'lb maintain
as low opera-
ting temperatur_
es possible
the engine is equipped
with
a cooling system,
The cooling system coP.Sksls
of;
i.An air intake on the
Slar te_"unit
2, Cooling fi1_.son the
flywheel.
3. Cooling ti1_s on the
wlinder
4. Cylinder
cover (leads cold
air onto the cylinder).
Clean the cooling system
using a brush at least once a
week. in difficult conditiom
more often.
A dirty or blocked cooling
system leads to the engine
overheating
resulting
in
damage to the cylinder
and
piston,
_= / _
Spark plug
The condition
of the spark
plug is affected t_v:
• An incor_x_ctcarburetor
setting
• An incor_x_ct Fuel
_nixlklre
(tOO
r!luch
or
faulty
oil).
•
A
dirty
air filter.
These factors cause
deposits on the spark plug
electrode that nl W result in
malfunction
or starting
difficulties,
0,5 mm
If the machine
is low on power,
diftlclllt
to start
or runs
poorly
while
idling
always
check
the spark
ping
first,
]f the spark plug ks dirty, clean it and at the same time check
that the electrode gap is 0.5 nlnl The spark piug should be
changed after aboul one month
of operation
or earlier ff
necessa_J.
NOTE!
Always use the recommended
lype oF spark plug. An
incormcl spark plug can damage the cylinder/piston.
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