FUEL AND LUBRICATION
IMPORTANT: UNITS ARE SHIPPED WITH ENGINES
COMPLETELY DRY
SO
FOLLOW INSTRUCTIONS
CAREFULLY BEFORE STARTING ENGINE. The
lubrication of the two cycle engine depends entirely
on the oil mixed with the gasoline.
The proper mix-
ture
is
1/2 pint of Outboard Motor Oil, to one gallon
of gasoline. For the
first
few hours of operation it
is
recommended that a mixture of 3/4 pint of oil per
gallon of gasoline be used.
Be
sure to mix gasoline
and oil in a separate container. Do not pour un-
mixed gasoline or oil into engine fuel tank.
Fill the chain tank with #30 or heavier for use in
warm or moderate temperatures and #10 in winter.
In
extreme cold weather or when working in pitchy
wood a mixture of
4
parts of oil and one part of ker-
osene
is
recommended. Before using saw, press
chain oiler plunger until a quantity of oil has entered
the guide bar groove. During operation use oil pump
plunger frequently to keep guide bar and chain ad-
equately lubricated.
STARTING ENGINE
For new units proceed as
foIlows:
1.
Put fuel
in
tank that
is
properly mixed as ex-
plained
in
previous instructions.
2. Open shut off valve below fuel tank.
C
3. Turn switch to ON position.
4. Move choke lever to choke position.
5.
Turn throttle lock knob clockwise until trigger
throttle locks.
6.
Pull starter cord with quick snap pulls until
engine fires..
7.
Turn choke lever to open position and again pull
starter cord.
If
engine fails to start, close choke
for one pull of starter cord and again open choke and
CHOKELEVER
CHOKING POSITION
HIGH
SPEED
SCREW
Figure
2.
Carburetor
pull starter cord. When engine
starts immediately
press trigger to release throttle lock as engine
should not be run at full throttle without load.
It may
be necessary to maneuver the choke lever from three
to ten seconds while engine
is
warming so that
it
will
idle satisfactorily.
CARBURETOR ADJUSTMENT
The
carbLretor
is
adjusted when chain saw leaves the
factory but
if
adjustment becomes necessary pro-
ceed as follows:
Turn idler screw and mixture screw clockwise until
completely closed. Open idler screw 3/4 turn and mix-
ture screw 1-1/4 turns. Start engine and when warm
adjust idler screw so that engine idles smoothly at no
throttle. Next make a test cut and adjust mixture screw
so that engine will not stall under full load.
Be
sure the
bar and chain are properly oiled and that engine
is
at
maximum speed before starting cut. Finally check
engine for quick acceleration and if necessary slightly
increase opening of mixture screw.
I
HANDLE BAR
GAS TANK
RECOIL
STARTER
CHAIN OILER
'
Figure 3.
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