To start engine (see fig. 8), Mowing tips, Operation – Sears Craftsman 917.257720 User Manual

Page 14

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OPERATION

ADD GASOLINE

• Fill fuel tank. Use fresh, clean, regular unleaded

gasoline. (Use of leaded gasoline will increase carbon
and lead oxide deposits and reduce valve life).

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 stor­

age 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 instruc­

tions for additional information. Never use engine or

carburetor cleaner products in the fuel tank or permanent

damage may occur.

A

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.

TO START ENGINE (See Fig. 8)

When starting engine for the first time or if engine has run
out of fuel, it will take extra cranking time to move fuel from

the tank to the engine.

Depress clutch/brake pedal and set parking brake.

Place gearshift lever in neutral (N) position.

Move attachment clutch to “DISENGAGED” position.

Pull choke control out to choke (!\|) position for cold

engine start. For warm engine start do not use choke

control.

Move throttle control to midway between fast (4») and

slow (•m) positions.

Insert key into ignition and turn key clockwiseto “START”

position and release key as soon as engine starts. Do
not run starter continuously for more than fifteen

seconds per minute. If engine does not start after
several attempts, move throttle control to fast (4»)
position, wait a few minutes and try again.

When engine starts, slowly push choke control in.

• Move throttle control to fast (•%) position.

• Allow engine to warm up for a few minutes before

engaging drive or attachments.

NOTE: If at a high altitude (above 3000 feet) or in cold

temperatures (below 32°F), the carburetor fuel mixture

may need to be adjusted forbestengine performance. See

“TO ADJUST CARBURETOR” in the Service and Adjust­

ments section of this manual.

MOWING TIPS

Tire chains cannot be used when the mower housing

is attached to unit.

Mower should be properly leveled for best mowing

performance. See “TO LEVEL MOWER HOUSING” in
the Service and Adjustments section of this manual.

Use the runner on the right hand side of mower as a

guide. The blade cuts approximately an inch outside

the runner (See Fig. 10).

The left hand side of mower should be used for trim­
ming.

Drive so that clippings are discharged onto the area

that has been cut. Have the cut area to the right of the

machine. This will result in a more even distribution of

clippings and more uniform cutting.

When mowing large areas, start by turning to the right

so that clippings will discharge away from shrubs,

fences, driveways, etc. After one or two rounds, mow

in the opposite direction making left hand turns until

finished (See Fig. 12).

If grass is extremely tall, it should be mowed twice to

reduce load and possible fire hazard from dried clip­

pings. Make first cut relatively high; the second to the
desired height.

Do not mow grass when it is wet. Wet grass will plug

mower and leave undesirable dumps. Allow grass to
dry before mowing.

Always operate engine at full throttle when mowing to
assure better mowing performance and proper dis­
charge of material. Regulate ground speed by select­

ing a low enough gear to give the mower cutting

performance as well as the quality of cut desired.

When operating attachments, select a ground speed

that will suit the terrain and give best performance of
the attachment being used.

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