Craftsman 247.372900 - Manual (Page 11)

CUSTOMER RESPONSIBILITIES
LUBRICATION
ENGINE OIL RECOMMENDATIONS
A 20 ounce bottle of SAE 30 oil is included with your
new lawn mower.
Only use high quality detergent oil rated with API ser­
vice classification SG or SH. Select the oil’s viscosity
grade according to your expected operating tempera­
ture.
Colder 32°F -► Warmer
5W30 SAE 30
NOTE: Although multi-viscosity oil (5E30, 10W30,
etc.) improves starting in cold weather, these multi­
viscosity oils will result in increased oil consumption
when used above 32° F. Check your oil level more
frequently to avoid possible engine damage from run­
ning low on oil.
WHEELS
DO NOT oil or grease the wheel bearings. Viscous
lubricants will attract dust and dirt that will shorten the
life of the self-lubricating wheel bearings. If you feel
the wheels must be lubricated, use only a dry, silicone
type lubricant sparingly.
WHEEL ADJUSTERS
For easy operation, lubricate the wheel adjusters at
least once a season with light oil.
BRAKE SPRING BRACKET
Spray a light oil lubricant on the brake spring bracket,
located on the right rear corner of the engine, at least
once a season.
TRANSMISSION
The transmission is pre-lubhcated and sealed at the
factory. It does not require checking. If disassembled
for any reason, fill with 2 ounces of Alvania grease,
part number 737-0168.
MOWER
BLADE CARE
Your mower will work better with a sharp blade.
A
CAUTION: DISCONNECT SPARK PLUG
WIRE FROM SPARK PLUG AND PLACE
WIRE WHERE IT CANNOT COME IN CON­
TACT WITH THE SPARK PLUG.
TO REMOVE BLADE (See Figure 9):
• Turn mower on its side. Make sure air filter and
carburetor are up.
• Use a block of wood between blade and mower
deck to prevent blade from turning when bolt is
removed. Protect your hands with gloves and/or
wrap blade with heavy cloth.
• Remove blade bolt by turning counterclockwise.
Use a 9/16" box or open-end wrench.
TO REPLACE BLADE (See Figure 9):
• Put blade adapter on engine crankshaft.
• Fit blade in adapter. Be sure trailing edge of blade
is up towards engine.
• Assemble bolts, washers, and nuts in the exact
order of removal.
• Use block of wood to hold blade and tighten bolt
clockwise. The recommended torque for the center
is 450-600 in. lbs. The recommended torque for the
blade adapter bolts is 200-350 in. lbs.Torque
wrenches are available at most Sears stores and
through the catalog.
IMPORTANT: THE BOLT USED TO SECURE THE
BLADE TO ENGINE IS SPECIALLY HEAT-TREATED.
DO NOT SUBSTITUTE (SEE REPAIR PARTS).
A
CAUTION: A LOOSE BLADE CAN BE
DANGEROUS AND MAY MAKE THE
ENGINE HARD TO START.
Use only a Sears authorized replacement blade to get
the best cutting results.
FIGURE 9.
NOTE: We do not recommend sharpening the
blade—but if you do, be sure blade is balanced.
TO SHARPEN BLADE
• The blade can be sharpened with a file or on a
grinding wheel. Do not attempt to sharpen while on
the mower.
• Care should be taken to keep the blade balanced.
An unbalanced blade will cause excessive vibration
when running and eventual damage to mower and
engine.
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