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FOR BEST RESULTS USE PIONEER'OURAGUARO'OR'OURASPEEO'SAW CHAIN
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PREVENTIVE MAINTENANCE
KLEP
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Preventive maintenance is the elimination
of
potential causes
of trouble
before
they occur.
To realize
the full
value of
your
investment and prevent unnecessary repair bills together
with
loss of use, MAKE PREVENTIVE MAINTENANCE
A
MUST. Check
your chain saw
daily
and set
up
a system
of
regular inspections
and rune-ups.
1. AIR CLEANER: Your
air
cleaner is the
specially
proces-
sed
filter
element
which fits securely under the
top
cover.
To service, turn
the
centrally located
screw
to
the left
which releases the
cover.
Periodic cleaning
andlor
re:place-
ment
of
this
filter is
required
to
ensure a smooth
running
saw. While
the
top
cover
is off, wipe
all accumulated dust
away from the carburetor. This will prevent many car-
buretor problems
at a
later date.
2. CYLINDER
HEAD
AND
FINS, The
cylinder
fins must
be kept thoroughly clean.
Blocked
cylinder
fins will cause
the unit to
overheat. With a
thin
tool remove any
accum-
ulated sawdust
from
between the fins.
This increases
the
cooling effl'ct of forced
air from the
fan on the
flywheel.
3. EXHAUST PORTS: Remove the
screws securing
t!"le muf-
fler. Turn the
engine over
to
a position where
the
piston
is clear of
exhaust
ports. With
a
blunt
edged
tool, care-
fully
remove
any accumulated carbon and wipe
away
small
particles before
reinstalling the
muffler. Replace
the
exhaust gasket
if
required.
4. lGNlTlON:
Check your
spark plug wire
for
possible wear
or break. During reassembly be careful
that
no part of
this wire is permitted
to
rub against the flywheel. CAU-
TREE
SUPPORTED
ALONG
ENTIRE LENGTH
2nd
CUI
8UCK
(lI
J
,
~
UIA, I
I"
CU
T BUO': II /l,d 01
"-
I
TO
AVOID
PINCHIN(.
TREE
SUPPORTED
ON 80TH
ENOS
TION
- excessive oil on the
cam
wiper
itself may
damage
your
points.
Replace felt
or wash in
clean gasoline,
sque-
eze
dry and add
one
drop only of clean
oil.
5. SPARK PLUG:
As in the
case of
a1l2-cycle motors your
spark
plug
should
be
checked and kept
clean
of
carbon
and readjust to a gap of
.030 inches.
6.
MAGNETO: Do not inspect, remove
or adjust
the mag-
neto unless
absolutely
necessary. To
check
the breaker
point gap which
should
be maintained
at
.015 inches, re-
move the cover
and slowly
turn
the engine over
until
the
points are
open by the
cam,
then with a feeler
gauge,
check
to
.015". It
is recommended
that
all
magneto
ser-
vice
work
be
carried out by an authorized
Pioneer
dealer.
7. CARBURETOR: As
mentioned, do not
change
the car-
buretor needle
settings
unnecessarily. Should
the
carbur-
etor,
for
any reason, need
servicing, this
should
be per-
formed by
your servicing
dealer.
8. CLUTCH:
Th
e
clutch assembly of your chain saw
is
of a
centrifugal type and
fully automatic. The
clutch
engages
when
the
throttle is opened to a
point
where the
engine
revolutions
cause the clutch
shoes
to
engage.
Do not slip
your clutch through
overloading
as it will wear out the
shoes.
Paractic~immediately
releasing
the
throttle if
the
chain
is pinched
as well as at the end of a cut.
9.
BAR
MAlNTENANCE:
To
assure that the oil reaches
the
chain at all times,
cleaning of the
bar groove and
the oil
inlet hole is important. Remove
sawdust from
these areas
after
each day
of cutting,
or whenever the
oil
supply ap-
pears inadequate. To keep the wear
equal on
the rails of
the cutter bar, it
should
be turned
over
periodically.
8
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