Clean Unit & Labels; Clean Air Filter; Inspect Muffler And Spark Arrestor Screen; Cleaning The Spark Arrestor Screen - Craftsman 358.350270 Operator's Manual

• Add lubricant tosprocket hole after
each use.
• Burring ofguide b arrails i sanormal
process ofrail w ear. Remove these
burrs w ith aflat f ile.
• When r ail t op isuneven, use aflat
file torestore square edges and
sides.
File Edges and
sides Square
Worn Groove Correct Groove
Replace guide b ar w hen t he groove i s
worn, the guide b ar i sbent orcracked,
orwhen e xcess heating orburring of
the rails occurs. Ifreplacement isnec-
essary, use only t he guide b ar s peci-
fied foryour saw inthe repair parts l ist
oronthe decal located onthe chain
saw,
CLEAN UNIT & LABELS
• Clean the unit using a damp cloth
with a mild detergent.
• Wipe off unit with a clean dry cloth.
CLEAN AIR FILTER
A dirty air filter decreases tile life and
performance of the engine and in-
creases fuel consumption and harmful
emissions. Always clean your air filter
after 15 tanks of fuel or 5 hours of op-
eration, whichever comes first. Clean
more frequently in dusty conditions. A
used air filter can never be completely
cleaned. It is advisable to replace your
air filter with a new one after every 50
hours of operation, or annually, which-
ever comes first. To clean filter:
• Loosen 3 screws on cylinder cover.
• Remove cylinder cover.
• Remove air filter.
• Clean the air filter using hot soapy
water. Rinse with clean cool water.
Air dry completely before reinstalling.
• Lightly oil air filter before installing to
improve the efficiency of air filter.
Use 2-cycle engine oil or motor oil
(SAE 30). Squeeze excess oil from
filter.
• Reinstall air filter.
• Reinstall cylinder cover and 3 screws
(15-20 in-lbs.).
Screws
Air Filter t _.._ Cylinder Cover
O o"vTrer
INSPECT MUFFLER AND SPARK AR-
RESTOR SCREEN
As the unit is used, carbon deposits
build up on the muffler and spark
arrestor screen, and must be removed
to avoid creating a fire hazard or af-
fecting engine performance.
Replace the spark arrestor screen if
breaks occur.
Muffler Diffuser
Spark
Arrestor
(_/"_"X/'_ ._ X I/Screen
t 't.!_ /
Muff,er
:k Cover
Muffler Cover
CLEANING THE SPARK ARRESTOR
SCREEN
Cleaning is required every 25 hours of
operation or annually, whichever
comes first.
• Loosen and remove the 2 muffler
cover screws.
• Remove the muffler cover (cover
snaps off muffler body).
• Remove muffler diffuser and spark
arrestor screen assembly. Notice the
orientation of these parts for reas-
sembling.
• Clean the spark arrestor screen with
a wire brush. Replace screen if
breaks are found.
• Replace any broken or cracked muf-
fler parts.
• Reinstall diffuser and spark arrestor
screen assembly with round holes
facing up.
• Reinstall muffler cover and 2 screws
(718 ftllbs).
13