Craftsman 917.773700 Owner's Manual page 11

TO CHANGE ENGINE OiL
NOTE: Before tipping trimmer to drain
oil, drain fuel tank by running engine
until fuel tank is empty.
1. Disconnect spark plug wire from spark
plug and place wire where it cannot
come in contact with spark plug.
2. Remove engine oil cap; lay aside on a
clean surface.
3. Tip trimmer on its side as shown and
drain oil into a suitable container.
Rock trimmer back and forth to
remove any oil trapped inside of
engine.
4. Wipe off any spilled oil from trimmer
and side of engine.
5. Fill engine with oil (See "ADD OIL" in
the Operation section of this manual).
6. Replace engine oil cap.
7. Reconnect spark plug wire to spark
plug.
Container
AIR FILTER
Your engine will not run properly and may
be damaged by using a dirty air filter.
Replace the air filter every 100 hours of
operation or every season, whichever
occurs first. Service a_ cleaner more
often under dusty conditions.
TO CLEAN AIR FILTER
1. Loosen screw and tilt cover to remove.
2. Carefully remove cartridge.
3. Clean by gently tapping on a flat
surface. If very dirty, replace cartridge.
_,CAUTION: Petroleum solvents, such as
kerosene, are not to be used to clean
cartridge. They may cause deterioration of
the cartridge. Do not oi_cartridge. Do not
use pressurized air to clean or dry
cartridge.
4. Install cartridge, then replace cover
making sure the tabs are aligned with
the slots in the back plate. Fasten
screw securely.
Back plate
Slots
Cover
tabs
Cover
MUFFLER
Inspect and replace corroded muffler as
it could create a fire hazard and/or
damage.
SPARK PLUG
Replace spark plugs at the beginning of
each mowing season or after every 100
hours of operation, whichever occurs first.
Spark plug type and gap setting are
shown in "PRODUCT SPECIFICATIONS"
in Maintenance section of this manual.
CLEANING
IMPORTANT= For best performance,
keep tdmmer free of buitt-up grass and
trash. Clean the underside of your
trimmer after each use.
_CAUTION: Disconnect spark plug wire
from spark plug and place wire where it
cannot come in contact with the spark
plug.
• Turn trimmer on its side, Make sure air
fi_ter and carburetor are up. Clean the
underside of your trimmer by scraping
to remove build-up of grass and trash.
• Clean engine often to keep trash from
accumulating. A clogged engine runs
hotter and shortens engine life.
• Keep finished surfaces and wheels
free of all gasoline, oil,etc.
• We do not recommend using a garden
hose to clean trimmer unless the
electrical system, muffler, air filter and
carburetor are covered to keep water
out. Water in engine can result in
shortened engine life.
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