unscrew both rear wheels
and
take
off
the
pinions
with the
driving
pins
loosen the right holding
device and
take
off
the covering ring
draw drive shaft
upward untilthe belt can be
removed and the new one
can be
inserled
fix the rear wheels
again
(observe
the
descri
ption
"
Driving speed
")
Cleaning of
the
spark
plug
/f\
Attention!
4\
'larriers
of heart
pacers
may not
work on
L
-nergized
parts
of
the
ignition installations,
Remove
spark
plug
socket and unscrew spark
plug.
Clean the electrodes with
a brass wire
brush and adjust
distance to 0,75 mm. Reset
spark
plug
and socket and test ignition
spark.
When
changing
the spark
plug, please
take
care that
you
have the right type
(RCl
2YC).
ning
of
the
air
filter
Warning!
Never
lubricate
or humidify the
air
filter. The
engine
may not be
started
without
air filter.
The
filter
cartridge in the air filter must
be
blown
out with
compressed air after approx.
10
operating hours from in- to
outside. This
can be done
a maximum of 5 times, then the
cartridge
must
be
replaced.
The
filter
carlridge should
be
replaced
every
two
years,
regardless
the number of operating
hours.
When removing
the filter cartridge,
'r.ke
care not
to knock off any dust, which
",,itight
then
get
into
the carburettor.
Blade
/
f
\
Attention!
4\
Works
at the
blade may only
be
executed
by
an
authorised
workshop.
WARNING
! Pull
off
plug
socket.
Vibrations
indicate
an excessive or one-
sided
wear
of
the
blade. Regrinding
or
filing
must
be
executed
by an expeft.
Before
re-
Glea
tr
installing the
blade, check for imbalance.
Bla-
des
which
have
gone
out of
form,
should not
be bent back
and
used
again
(danger
of
rupture).
After
each use.
check
the
blade and the fric-
tion
clutch with regard
to damages. After
a
severe
shock, caused by hitting
an obstacle,
the machine
and especially the blade,
the fric-
tion clutch
and
the fixing
screw have
to be
checked
by a specialist in
an entitled work-
shop.
A regular
inspection of the
bladeis necessa4z.
Heavily worn
blades
have
to
be exchanged.
The
engraved marking in the
shape
of a ball
on the lower
side of the blade,
approx. 20 mm
from
the cutting edge is
a
wear
marking.
The
blade may only be worn
or regrinded
up
to this
marking. ln case the
cutting edge
has
reached
the marking, the
blade has to
be
exchanged,
even
if the rear
side
of the
blade
does not show
anv
wear.
Engraved
marking
on the lower side of the blade
Danger
of rupture
and being injured
In
case the
blade
is worn
down to
a
thickness
of 1 mm at its air vanes
or at its rear
edoe.
a
new
one
has to
be mounted.
On sandy
and abrasive
grounds,
the
wear
on
cutting
edges, air
vanes
and fixing
par4s
is
extremely high. We
recommend
to
use here
the
blade ref. no.
3077.
It
rl
;i
il
wear
edge
Engraved
marking for
control
of wear
on
the lower
side
of the blade
27
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