Sears 247.37638 - Manual (Page 10)

CUSTOMER RESPONSIBILITIES
• To check blade balance, drive a nail into a seam or
wall. Leave about one inch of the straight nail
exposed. Place center hole of blade over 1 ie head
of the nail. If blade is balanced, it should r imain in
a horizontal position. If either end of the blade
moves downward, blade is not balanced. Sharpen
the heavy end until the blade is balanced.
ENGINE
ENGINE LUBRICATION
You must change the oil in the crankcase < fter the
first two (2) hours of operation and after ( ach 25
hours of use thereafter. CHANGE THE OIL MORE
FREQUENTLY IF USED IN SANDY OR DUSTY
CONDITIONS.
TO DRAIN OIL
• Disconnect spark plug wire from spark p ug and
place wire where it cannot come in contact w ith piug.
• Drain the gas tank.
• Remove the oil fill cap and dipstick. Turn and tip
the unit on its side with the carburetor up, a id drain
oil into a suitable container.
• Refill crankcase with oil. Refer to “ENGNE OIL
RECOMMENDATIONS” on previous page.
• Replace oil fill cap and dipstick. Tighlan cap
securely.
SPARK PLUG
Change your spark plug each year to mal;e your
engine start easier and run better. Set spark plug gap
at .030 inch.
AIR FILTER
Your engine will not run properly and may be dam­
aged by using a dirty air filter.
Replace the air filter every year, or more ofte ^ if you
mow in very dusty, dirty conditions. Do not v ash air
filter.
TO CHANGE AIR FILTER (See Figure 10):
• Remove cover from body by loosening cove r screw
(do not remove screw from cover). Swin g cover
down to remove from hinge.
Clean the inside of the body and cover with a clean
cloth to remove any dirt accumulation.
Insert new filter in body.
Install cover on body by aligning hinge between
body and cover. Swing cover upward against body.
Tighten cover screw securely.
Cover
Screw
FIGURE 10.
CLEANING
Body
Hinge
A
WARNING: DISCONNECT SPARK PLUG
WIRE FROM SPARK PLUG AND PLACE
WIRE WHERE IT CANNOT COME IN CON­
TACT WITH THE SPARK PLUG.
• Turn mower on its side with carburetor and air filter
up.
• Clean the underside of your mower after each use
by scraping to remove build-up of grass clippings,
leaves, dirt or other matter. If this debris is allowed
to accumulate, it will invite rust and corrosion, and
may prevent proper mulching.
• Clean your mower and engine often to keep build­
up of grass or debris from accumulating around
engine. A clogged engine runs hotter and shortens
engine life.
NOTE: We DO NOT recommend using a garden hose
to clean mower unless the electrical system, muffler,
air filter and carburetor are covered to keep water out.
Water in engine can result in shortening engine life.
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