Service; Engine; Spark Plug; Air Filter - Craftsman 3One 917.374370 Owner's Manual

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ENGINE
LUBRICATION
Use only high quality detergent oil rated with AP! service
classification SG_ Select the oil's SAE viscosity grade
according to your expected operating temperature.
SAE VISCOSITY GRADES
),
CONTAINER
FIG. 12
BACK PLATE
°F -20" 0" :30" 32a 40* 60 € 80 ° "_00"
_,c ._o, -2o' -_o, o, 1o. 20, 4o °
TEMPERATURE RANGE ANTICIPATED BEFORE NEXT OIL CHANGE
NOTE: Although multi-viscosity oils (5W30, 10W30 etc,)
improve starting 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°
• 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 oil trapped inside of engine,
° 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.
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,
TO CLEAN AIR FILTER (See Fig. 13)
• Loosen screw and tilt cover to remove.
• Carefully remove cartridge,,
• Clean by gently tapping on a flat surface. If very dirty,
replace cartridge or clean as follows: Wash in a low or
non-sudsing detergent and warm watersolution. Rinse
thoroughly with flowing water from mesh side until
water runsclearo Let cartridge air dry thoroughly before
using.
CAUTION: Petroleum solvents, such
as kerosene, are notto be used to clean
cartridge. They may cause deteriora-
tion of the cartridge. Do not oil car-
tridge. Do not use pressurized air to
clean or dry cartridge°
14
LIP
CARTRIDGE
SCREW
COVER
TABS
FIG. 13
• Install cartridge, then replace cover making sure the
tabs are aligned with the slots in the back plate, Fasten
screw securely.
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
MOWER HOUSING FREE OF BUILToUP GRASS AND
TRASH_ CLEAN UNDERSIDE OF MOWER HOUSING
AFTER EACH USE.
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CAUTION: Disconnect spark plug wire !
from spark plug and place wire where it
cannot come in contact with the spark
........ p lug. ...............................
° 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 life.
° 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 drive cover=