Craftsman 917.773420 - 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
.
2
.
3.
4.
5.
6
.
7.
Disconnect spark plug wire from spark
plug and place wire where it cannot
come in contact with spark plug.
Remove engine oil cap; lay aside on a
clean surface.
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.
Wipe off any spilled oil on trimmer and
on side of engine.
Fill engine with oil (See “ADD OIL" in
the Operation section of this manual).
Replace engine oil cap.
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 year, more
often if you mow in very dusty, dirty
conditions. Do not wash air filter.
TO CHANGE AIR FILTER
1. Remove the air filter by turning
clockwise to the stop and pull away
from collar.
Remove filter from inside of cover.
Clean the inside of the cover and the
collar to remove any dirt accumula­
tion.
Insert new filter into cover.
Put air filter cover and filter into collar
aligning the tab with the slot.
Push in on cover and turn counter­
clockwise to tighten.
2
.
3.
4.
5.
6
.
Collar
Turn
clockwise
counterclockwise to
tighten
MUFFLER
Inspect and replace corroded muffler as
it could create a fire hazard and/or
damage.
SPARK PLUG
Change your spark plug each year to
make your engine start easier and run
better. Set spark plug gap at .030 inch.
CLEANING
IMPORTANT:
For best performance,
keep trimmer free of built-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
filter 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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