After each use. ensure
ON/OFF
switch
is in
the OFF position, then clean all sawdust
from
the guide bar and sprocket
hole.
To maintain
guide bar:
• Move ON/OFF
switch
to the OFF position
and disconnect
spark plug.
• Loosen
and remove
bar
clamp
nut and
chain brake.
Remove
bar and chain from
pruner.
• Clean
the oil holes
and bar groove
after
each 5 hours of operation.
Remove Sawdust
From
Guide Bar Groove
\
Oil Holes
• Burring
of guide
bar
rails
is a normal
process
of rail wear.
Remove
these
burrs
with a fiat file.
• When
rail top is uneven,
use a flat file to
restore
square edges and sides.
_1"_
File Rail Edges_r]
r]
and Sides
I U I
square
I
I
Worn Groove
Correct
Groove
Replace guide bar when the groove
is worn,
the guide
bar is bent
or cracked,
or when
excess
heating or burring of the rails occurs. If
replacement
is necessary,
use only the guide
bar specified
for your
pruner
in the repair
parts list.
LUBRICATION
Fill Cap
• See GUIDE
BAR AND CHAIN
OIL under
the OPERATION
section.
MUFFLER
AND
SPARK
ARREST-
ING SCREEN
_& WARNING:
The muffler o n thisprod-
uct
contains chemicals
known to the State of
California to cause cancer,
As your unit is used, carbon deposits
build up
on the muffler and spark
arresting
screen,
For normal
homeowner
use, however,
the
muffler and spark arresting
screen will not re-
quire any service.
After 50 hours of use, we
recommend
that your muffler be serviced
or
replaced by your authorized
service
dealer.
REPLACE
SPARK
PLUG
Replace the spark plug each year to ensure
the engine starts easier and runs better. Set
spark
plug gap at 0.025 inch (0,6 mm). Igni-
tion timing is fixed and nonadjustaMe,
1.
Twist, then pull off spark plug boot,
2.
Remove
spark
plug from
cylinder
and
discard.
3.
Replace
with
Champion
RCJ-6Y
spark
plug and tighten securely
with a 3/4 inch
(19 mm) socket wrench.
4.
Reinstall the spark plug boot.
,t=
r=WARNING:
Disconnect
the spark
plug before performing maintenance, service, or
adjustments
except for carburetor adjustments.
CHAIN
SHARPENING
Chah_ sharpening
is a complicated
task that
requires
special tools. We recommended
you
refer chain sharpening
to a professional
chain
sharpener.
CHAIN
REPLACEMENT
WARNING:
Wear protective
gloves
when handling
chain, The chain is sharp and
can cut you even when it is not moving,
It is normal for a new chain to stretch during the
first 15 minutes of operation.
You should re-
check your chain tension frequently and adjust
the chain tension as required, See CHAIN TEN-
SION section,
Replace the old chain when it becomes worn or
damaged.
Use only the Low-Kickback
replace-
ment chain specified
in the repair parts list.
TO REPLACE
CHAIN:
1.
Move ON/OFF
switch to the OFF position
and disconnect
spark plug.
2.
Remove
bar clamp nut.
3.
Remove
bar clamp.
4.
Turn adjusting
screw
by hand counter-
clockwise
until adjusting
pin just touches
the stop.
5.
Slide
guide
bar
behind
sprocket
until
guide bar stops against sprocket.
6.
Remove
the old chain.
7.
Carefully
remove
new chain from pack-
age. Hold chain with the drive
links as
shown.
Tip of
Bar
CUTTERS MUST FACEff
/1
DIRECTION
OF ROTATION
Cutters
Depth Gauge
"
Drive Links
16