Service; Engine; Lubrication; Spark Plug - Craftsman 3One 917.372910 Owner's Manual

CUSTOMER RESPON$
ENGMNE
LUBRICATUON
Use only high quality detergent oil rated with API service
Classification SF or SG. Select the oil's SAE viscosity grade
according to your' expected operating temperature°
SAE VISCOSITY GRADES
I
"F "20 _ 0 _ 30 _ 32 ° 405 60 _ 80 ° 100 °
i =
°c -_o. .2'o. -_;° 0, ;oo 2o" _o° ,;°
TEMPERATURE RANGE ANTiCiPATED BEFORE NEXT OIL CHANGE
NOTE: Although multi-viscosity oils (5W30, 10W30 etc,)
impmovestarting in cold weather, these multi-viscosity oils
will result in increased oil consumption when used above
32°F. Check your engine oil level more frequently to avoid
possible engine damage from running low on oil.
Change the oil after the first two hours of operation and
every 25 hours thereafter or at least once a year if the lawn
mower is not used for 25 hours in one year.
Check the crankcase oil level before starting the engine
and after each five (5) hours of continuous use_ Tighten oil
plug securely each time you check the oil level
TO CHANGE ENGINE OIL (See Fig° 12)
NOTE: Before tipping lawn mower to drain oil, drain fuel
tank by running engine until fuel tank is empty.,
o 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 lawn mower on its side and drain oil into a suitable
container. Rock lawn mower back and forth to remove
any oi! trapped inside of engine,.
o Wipe off any spilled oil on lawn mower and on side of
engine.
° Fill engine with oil, Fill only to the "FULL" line on the
dipstick, DO NOT OVER FILL
• Replace engine oil cap.
• Reconnect spark plug wire to spark plug.
Your engine will not run pr.operly 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 (See Fig. 13)
o Loosen cover screw.
° Swing cover down and remove from hinge.
° Pull paper filter out of air cleaner body.
° Clean air cleaner cover and body.
° install a new paper' filter.
o Reinstall cover' to air cleaner body. Be sure hinge is
assembled properly.
o Swing cover' up and tighten cover screw. (Do not
overtighten)_
CONTAINER
FIG. 12
AIR FILTER COVER
HINGE
PAPER
FILTER
COVER
SCREW
FIG. 13
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 easierand run better_ Set spark plug gap at _030 inch.
CLEANING
IMPORTANT: FOR BEST PERFORMANCE, KEEP
MOWER HOUSING FREE OF BUILT-UP GRASS AND
TRASH. CLEAN THE UNDERSIDE OF YOUR MOWER
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 lawn mower on its side. Make sure air filter and
carburetor are up. Clean the underside of your lawn
mower 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 hfe.
° Keep finished surfaces and wheels free of all gasoline,
oil,etc,
• We do not recommend using a garden hose to clean
lawn mower unless the electrical system, muffler, air
filter and carburetor are covered to keep water' out.
Water in engine can result in shortened engine life.
CLEAN UNDER DRIVE COVER
Clean under' drive cover' at Least twice a season_ Scrape
underside of cover with putty knife or similar tool to remove
any build-up of trash or' grass on underside of ddve cover.
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