Trouble Shooting; Engine - Craftsman 536.797460 Owner's Manual

up by a Sears Service Center is a
good way of ensuring that your Edger
will Provide maximum performance for
the next season.
ENGINE
IMPORTANT: It is important to prevent
gum deposits from forming in essential
fuel system parts such as the carburetor,
fuel filter, fuel hose, or tank during storage.
Also, experience indicates that using
alcohol-blended fuels (called gasohol,
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 prevent engine damage (if edger is not
used for more than 30 days) follow the
steps below.
• To remove gasoline, run the engine
until the tank is empty and the engine
stops.
• If you do not want to remove gasoline,
a fuel stabilizer (such as Sears
Craftsman fuel stabilizer No. 33500)
may be added to any gasoline left in
the tank to minimize gum deposits
and acids. If the tank is almost empty,
mix stabilizer with fresh gasoline in a
separate container and add some to the
tank. Always follow instructions on
stabilizer container. Then run engine at
least 10 minutes after stabilizer is added
to allow mixture to reach carburetor.
Store edger in a safe place. See warning
on page 13.
• Store the edger in the wheels-down,
operating position. If the edger is stored
in any other position, oil from the
crankcase could enter the cylinder,
causing a service problem.
You can keep your engine in good operat-
ing condition during storage by:
• Changing oil.
• Lubricating the piston/cylinder area. This
can be done by first removing the spark
plug and squirting clean engine oil into
the spark plug hole. Then cover the spark
plug hole with a rag to absorb oil spray.
Next, rotate the engine by pulling the
starter two or three times. Finally,
reinstall spark plug and attach spark plug
wire.
TROUBLE CAUSE CORRECTION
Difficult starting Stale fuel Drain fuel tank. Fill with fresh
fuel
or Defective spark plug Clean and re-gap spark plug
Clogged fuel line Replace fuel filter
Engine runs
erractlcally Blocked fuel line or empty fuel tank Clean fuel line; check gas tank
Carburetor out of adjustment Have carburetor adjusted
Fouled spark plug Clean and adjust gap
Clogged air cleaner Replace air filter
Jammed due to foreign object Clear obstruction
Cutting blade falls
to turn Loose blade Tighten blade retaining nut
Defective belt Replace V-belt
Defective quill bearings RepTace the bearings
Blade falls to cut Damaged or worn blade Replace blade
properly
Excessive vibra- Loose parts Stop engine immediately; tighten
tlon all bolts. If vibration continues,
take the unit into the nearest
Sears Service Center
14