Sears Craftsman 917.388013 Manual De Uso página 11

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SPECIFICATIONS
PRODUCT
SERIAL NUMBER:
DATE OF PURCHASE:
'GASOLINE
CAPACITY/TYPE:
1.5 QUARTS
(UNLEADED
REGULAR)
OILTYPE
(API-SF-SJ):
SAE 30 (ABOVE 32°F); SAE 5W-30 (BELOW
32°F)
I
!OIL CAPACITY:
20 OUNCES
SPARK PLUG (GAP:
.045")
CHAMPION
RESISTOR
TYPE
RJ19LM4
BLADE BOLT TORQUE:
35-40 FT. LBS.
The model and serial numbers
will be found
on a decal on the rear of the mower
housing.
Record
both serial number
and date of purchase
in space provided
above.
LAWNMOWER
Always observesafety ruleswhen perform-
ingany maintenance.
TIRES
• Keep tires free of gasoline, oil, or insect
control chemicalswhich can harm rubber.
• Avoid stumps,stones, deep ruts,sharp
objectsand other hazards that may cause
tire damage.
BLADE CARE
For best results, mower blade must be
kept sharp. Replace bent or damaged
blades.
TO REMOVE
BLADE
1. Disconnect
spark plug wire from spark
plug and place wire where
it cannot
come in contact with spark plug.
2. Turn lawn mower on its side. Make
sure air filter and carburetor
are up.
3. Use a wood
block between
blade and
mower housing
to prevent
blade from
turning
when
removing
blade bolt.
NOTE:
Protect your hands with gloves
and/or wrap blade with heavy cloth.
4.
Remove blade bolt by turning
counter-
clockwise.
5.
Remove
blade and attaching
hard-
ware (bolt, lock washer
and hardened
washer).
NOTE:
Remove
the blade adapter
and
check the key inside hub of blade
adapter. The key must be in good condi-
tion to work properly.
Replace
adapter
if
damaged.
TO REPLACE
BLADE
1. Position
the blade adapter on the
engine crankshaft. Be sure key in
adapter and crankshaft keyway are
aligned.
2.
Position blade on the blade adapter
aligning the two (2) holes in the blade
with the raised lugs on the adapter.
3.
Be sure the trailing edge of blade
(opposite
sharp
edge) is up toward
the engine.
4.
Install the blade bolt with the lock
washer
and hardened
washer
into
blade adapter
and crankshaft.
5.
Use block of wood between
blade and
lawn mower
housing
and tighten
the
blade bolt, turning
clockwise.
• The recommended
tightening
torque
is
35-40 ft. Ibs.
IMPORTANT:
Blade bolt is grade 8 heat
treated.
TO SHARPEN
BLADE
NOTE:
We do not recommend
sharpen-
ing blade - but if you do, be sure the
blade is balanced.
Care should be taken to keep the blade
balanced.
An unbalanced
blade will
cause eventual
damage
to lawn mower
or engine.
• The blade can be sharpened
with a file
or on a grinding
wheel.
Do not attempt
to sharpen while on the mower.
• To check
blade balance,
drive a nail
into a beam or wall. Leave
about one
inch of the straight
nail exposed.
Place
center hole of blade over the head of
the nail. If blade is balanced,
it should
remain
in a horizonlal
position.
If either
end of the blade moves
downward,
sharpen
the heavy end until the blade
is balanced.
Blade adapter _
Crankshaft
Key -...._
"_
"_
keyway
B,a0e'° kwas
11
washer
Trailin
edge
Blade adapter

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