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Craftsman 917.377631 Owner's Manual page 8

6.75 horsepower 21" rear discharge power propelled' electric start rotary lawn mower
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• Change the oil after every 25 hours of
operation or each season. You may need
to change the oil more often under dusty,
dirty conditions.
GAS
• Fill fuel tank.
Use fresh, clean, regular
unleaded gasoline with a minimum of 87
octane.
(Use of leaded gasoline will
increase carbon and lead oxide deposits
and reduce valve life). Do not mix oil
with gasoline.
Purchase fuel in quanti-
ties that can be used within 30 days to
assure fuel freshness.
IMPORTANT:
WHEN
OPERATING
IN
TEMPERATURES
BELOW 32°F(0°C),
use
fresh, clean winter grade gasoline to help
insure good cold weather starting.
WARNING:
Experience indicates that
alcohol blended fuels (called gasohol or
using ethanol or methanol) can attract
moisture which leads to separation
and
formation of acids during storage.
Acidic
gas can damage the fuel system of an
engine while in storage.
To avoid engine
problems, the fuel system should be
emptied before storage of 30 days or
longer. Drain the gas tank, start the
engine and let it run until the fuel lines and
carburetor are empty. Use fresh fuel next
season.
See Storage Instructions for
.additional information.
Never use engine
or carburetor cleaner products in the fuel
tank or permanent damage may occur.
CAUTION:
Fill to bottom of gas tank filler
neck. Do not overfill. Wipe off any spilled
oil or fuel. Do not store, spill or use
gasoline near an open flame.
Gasoline filler
Engine oil cap
w/dipstick
J
cap
TO START ENGINE
• To start a cold engine, push primer five
(5) times before trying to start. Use a
firm push. This step is not usually
necessary when starting an engine
which has already run for a few minutes.
• Hold operator presence control bar
down to the handle.
• Turn electric start key clockwise to crank
engine.
IMPORTANT:
Do not crank engine more
than five continuous seconds between
each time you try to start. Wait 5 to 10
seconds between each attempt.
• To start engine using the auxiliary
starter handle, follow the steps above.
Exchange the use of the start key for
starter handle.
Pull starter handle
quickly.
Do not allow starter rope to
snap back.
• To stop engine, release operator
presence control bar.
NOTE:
In cooler weather it may be
necessary to repeat priming steps.
In
warmer weather over priming may cause
flooding and engine will not start. If you do
flood engine wait a few minutes before
attempting
to start and do not repeat
priming steps.
MOWING TIPS
• Under certainconditions, such as very tall
grass,it maybe necessaryto raissthe
heightof cutto reduce pushingeffortand to
keep fromoverloading _
engineand
leavingdumps of grassclippings.
• Forextremelyheavycutting,reducethe
widthofcutby overlappingpreviously cut
pathand mow slowly.
• When usinga rear olschargelawn mowerin
moist,heavy grass,dumps ofcut grass
may notentar the grass catcher. Reduce
groundspeed (pushingspeed)and/or run
the lawn mower over the area a second
time.
• Ifa trailof clippingsis lefton the dghtside of
a rear arBchargemower,mow in a clock-
wise direction with a smallovedapto collect
the clippingson the next pass.
• Poresin clothgrass catcharscan become
filledwith dirtand dustwithuse and
catcherswil collectless grass. To prevent
this,regularlyhoeacatcheroff withwatar
and let drybefore using.
• Keeptop of enginearoundstarterclear and
dean of grasecrtppings and cheff. Thiswill
8
helpengineair flow and extendenginelife.

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