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4
PREVENTIVE MAINTENANCE
Preventive
maintenance
is the elimination
of potential
cause
of
troubles
before they
occur.
To
realize
the full
value
of
investment
and prevent
unnecessary
repair
bills
together
with costly shut-downs,
make PREVENTIVE
MAINTENANCE
A MUST.
Check your chain
saw daily
and
set
up
a
system
of regular
inspections
and tune-ups.
Your motor
is
equipped with an efficient air filter
of
pleated
design. This
incorporates
a self cleaning principle.
When cleaning proves necessary
release the
thumb .screw
about two turns then tap
the top
plate
lightly.
This releases
any
dirt
packed between
the pleats.
Retension thumb screw.
WARNING
Do
not wash
this
type
of air
cleaner.
Do not
use
air under pressure.
Replace
any damaged
filter
element
at
once.
Clean
off any dirt
around
the carburetor
breather
hole. If
you
are
working
the
saw
hard, it
is
a good
idea
to check and clean
the
air filter and the breather
hole twice
a
day.
Periodic
care
and
maintenance
1.
CYLINDER AND HE'AD FINS:
At least once a week remove cooling shroud and
give
cylinder
head
and
fins a
good
cleaning
(figure 10).
Tighten
head nuts if
required.
2. EXHAUST
PORTS:
Check
for carbon deposits.
Remove spark plug and
locate
the
piston
at
its
lowest
point.
Remove excess carbon
with
blunt edged tool, taking care
not
to
burr or damage port area or cylinder sleeve (figure 14). Clean out carbon
particles.
3. MUFFLER:
Check for
carbon.
Replace
the gasket
if
required.
4. IGNITION:
Check high tension wire for possible breaks
or
wear.
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