Craftsman 536.772200 - Manual (Page 12)

CAUTION: Never run the engine without
the air cleaner element installed. A
defective air cleaner can result in loss of
engine power and can cause excessive
wear or damage to the engine components
if dirt or dust is permitted to enter the
engine through the carburetor. A damaged
air cleaner, or one that is clogged with dust
or dirt should be replaced immediately.
SPARK PLUG
Clean the spark plug and reset the gap
periodically. Clean the area around the
spark plug base before removal, to prevent
dirt from entering the engine. Replace the
spark plug if the electrodes are pitted or
burned or if the porcelain is cracked. Clean
the spark plug by carefully scraping the
electrodes (do not sand blast or use a wire
brush). Be sure the spark plug is clean and
free of foreign material. Check the elec­
trodes gap with a wire feeler gauge and
reset to .030 inches if necessary. If a new
spark plug is needed, refer to the PROD­
UCT SPECIFICATIONS on page 11 for the
proper replacement spark plug.
Before reinstalling the spark plug, coat the
threads lightly with graphite or light oil to
insure easy removal. Tighten the spark plug
firmly into the engine. If a torque wrench is
available, torque the spark plug to 15 foot­
pounds.
SERVICE AND ADJUSTMENTS
A
CAUTION: Always stop the engine
and disconnect the spark plug wire before
making any repairs to the Edger.
V-BELT REPLACEMENT
Your Edger is equipped with a V-belt made
of a special compound. If the belt becomes
worn or breaks, replace it with an original
equipment belt as shown in the Repair
Parts section of this manual. Never use a
substitute.
• Disconnect the spark plug wire.
• Drain gasoline and oil from Edger.
• Tip Edger backwards on handle and
block top of handle against wall or bench.
• Remove three screws from the belt guard
as shown in first figure.
• Push blade bearing housing back towards
engine to compress spring and release
tension on belt.
• Remove old belt (carefully note direction
of twist around engine pulley). See
second figure.
• While spring is compressed, install new
belt on quill and engine pulleys being sure
to twist belt in proper direction as shown
in second figure.
NOTE: If belt is not installed properly the
blade will not turn in the proper direction and
could damage the blade or belt. Refer to
second figure for proper direction of belt
travel.
Screws
V-Belt
Engine Pulley
Spring
ade
Bearing
Housing
Note direction of
twist •
BLADE REPLACEMENT
The cutting blade is subject to wear and
damage such as nicks and dents. This will
not generally affect its function.
This blade is specially designed to not re­
quire sharpening. Do not attempt to sharpen
this blade. If worn or damaged the blade
should be replaced.
12