Sears C944.414460 - Manual (Page 16)

16
LUBRICATION
Bar Oil
Fill Cap
S See GUIDE BAR AND CHAIN OIL un-
der the OPERATION section.
INSPECT AND CLEAN UNIT
AND DECALS
S After each use, inspect complete unit
for loose or damaged parts. Clean
the unit and decals using a damp
cloth with a mild detergent.
S Wipe off unit with a clean dry cloth.
CHECK CHAIN BRAKE
S See CHAIN BRAKE in the OPERATION
section.
CLEAN AIR FILTER
A dirty air filter decreases the 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:
1. Loosen and remove 3 screws from
cylinder cover.
2. Remove cylinder cover.
3. Loosen and remove 2 screws from
air filter.
4. Remove air filter.
5. Clean the air filter using hot soapy
water. Rinse with clean cool water.
Air dry completely before reinstalling.
6. Reinstall air filter and 2 screws.
Tighten screws securely.
7. Reinstall cylinder cover and 3
screws. Tighten screws securely.
Air Filter
Screws
Cylinder
Cover
INSPECT MUFFLER AND SPARK AR-
RESTING SCREEN
As the unit is used, carbon deposits
build up on the muffler and spark arrest-
ing screen, and must be removed to
avoid creating a fire hazard or affecting
engine performance. Replace the spark
arresting screen if breaks occur.
CLEANING THE SPARK
ARRESTING SCREEN
Clean every 25 hours of operation or
annually, whichever comes first.
Muffler
Gasket
Muffler
Bolts
Muffler
Locknut
Steel
Backplate
Bolt Cover
Aluminum
Backplate
1. Loosen and remove the 3 cylinder
cover screws. Remove the cylin-
der cover.
2. Pull off the spark plug boot.
3. Loosen and remove the locknut
from the bolt cover. Remove the
bolt cover.
4. Loosen and remove the 2 muffler
bolts. Remove the muffler, muffler
gasket and backplates. Notice the
orientation of these parts for re-
assembling.
5. Locate the 2 outlet cover screws
on the muffler. Loosen and re-
move both screws. Remove the
outlet cover and spark arresting
screen.
Outlet Cover
Spark Arresting
Screen
Screws
Muffler
BACK VIEW OF MUFFLER
6. Clean the spark arresting screen
with a wire brush. Replace screen
if any wires are broken or screen is
blocked after cleaning.
7. Reinstall spark arresting screen.
8. Reinstall outlet cover and 2
screws. Ensure outlet cover and
both screws are reinstalled cor-
rectly to prevent damage to the
saw (see illustrations). The ex-
haust outlets must face the chain
brake (bar side) of the saw.