Operator`s manual

• Addlubricanttosprocketholeafter
eachuse.
• Burringof guide bar railsis a normal
processof rail wear. Remove these
burrswith a flat file.
• When rail top isuneven, use a flat file
to restore square edges and sldss.
TU T Rio Edgesand _._
sidesSquare
WornGroove CorrectGroove
Replace guide bar when the groove is
wom, the guide bar isbent or cracked,
orwhen excess heating or bur._g of
the ragsoccurs.If replacement zsnso-
essmy, use onlythe guide bar spedffed
foryour saw in the repair parts hstor on
the decal located on the chain saw.
INSPECT MUFFLER AND SPARK
ARRESTOR SCREEN
As the unit is used, carbon deposits
build up on the mufflerand spark
arrestorscreen, and must be removed
to avoidcreating a fire hazard or affect-
ing engine performance.
Replace the spark arrestorscreen if
breaks occur.
MufflerDiffuser
s_
Arrestor
Muffler
Cover
Screws
CLEAN UNIT & LABELS
• Clean the unit usinga damp clothwith
a milddetergenL
• Wipe off unitwith e clean dry cloth.
CLEAN AIR FILTER
A dirtyair filterdecreases the lifeand
performanceofthe engine and in-
creases fuel consumptionand harmful
emissions.Always clean your air filter
after 15 tanks of fuel or 5 hoursof op
eration, whichever comes firsLClean
more fro_.uentlyin dusty conditions.A
usedair bitercan never be completely
cleaned. It is advisable to replace your
air filterwith a new one after every 50
hoursof operation, or annually,which-
ever comes firsLTo clean filter:.
Muffler
Body MufflerCover
CLEANING THE SPARK
ARRESTOR SCREEN
Cleaning is r.equired every 25 hours of
operation or annually, whichever comes
first.
• Loosen and remove the 2 muffler cov-
er screws.
• Remove the mufflercover (cover
snaps offmufflerbody).
• Remove mufflerdiffuserand spark
arrestorscreen assembly.Noticethe
• Loosen3 screws on cylindercover, orientationofthese partsfor reassem-
Removecylindercover, bling.
Removeairfilter. • Cleanthesparkarrestorscreenwitha
• Clean the air filter using hotsoapy
water. Rinse with clean cool water.
Air drycompletely before reinstalling.
• Lightlyoil air filter before installingto
improvethe efficiency ofair filter.Use
2-cycle engine oilor-motoroil (SAE
30). Squeeze excess oilfromfilter.
• Reinstallair filter.
• Reinstallcylindercover and 3 screws
(15-20 [n-lbs.).
CylinderCover
AirRlter Screws
wire brush. Replace screen if breaks
are found.
• Replace any brokenor cracked muf-
fler parts.
• Reinstalldiffuserand spark arrestor
screenassembly with roundholes
facingup.
• Reinstallmufflercover and 2 screws
(7-e ft-_).
REPLACE SPARK PLUG
The sparkplug should be replaced
each year to ensure the engine starts
easier and runs better. Ignitiontiming is
fixedand nonadjustable.
• Loosen3 screws on cylindercover.
• Remove the cylinder cover.
Pulloffthe spark plugbeoL
Remove spark plug from cylinderand