Sears Craftsman 917.387021 Manual Del Usuario página 10

NOTE:Wedonotrecommend s harpening
blade-butifyoudo,besurethebladeis
balanced+ Crankshaft
Blade keyway
bO_d
"TFa_ing Blade
\ washer edge . adapter
"
Lock washer
TO SHARPEN BLADE
Care should be taken to keep the blade
balanced. Anlunbalanced blade wllt cause
eventgal 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 _heck bl!ade balance, drive a nail into
a beam or Wall. Leave about one inch of
the straightinail exposed. Place center
hole of blade over the head of the nail.
If blade iS b_lanced, it should remain in
a h0rizontai position° If either end of the
blade moves downward, sharpen the
heavy end Until the blade is balanced.
GRASS CATCHER
(If purchased _s an accessory)
° Thelgrass catcher may be hosed with
water, but must be dry when used.
° Check your grass catcher often for
damage or deterioration. Through
normal use it will wear. If catcher needs
replacing, replace only with a manufac-
turer approved replacement catcher.
Give the lawn mower model number
when ordering,
ENGINE
LUBRICATION
Use only high quality detergent oil rated
with API service classification SF, SG of'
SH. Select the oil's SAE viscosity grade
according to your expected operating
temperature.
NOTE: Although multi-viscosity oils
(5W30, t0W30 etc.) improve starting in
cold weather, these multi-,viscosity oils will
result in increased oil consumption when
used above 32°F.
_' SAE V!BCOS[TY GRADES ]
Check your engine oil level more fre-
quently to avoid possible engine damage
from running low on oil.
Change the oil after every25 f_ours of:
oPera!i_n or _atlea.st 6n_e _ yearif the
lawn mower is n0tused :fdr 25 hout:s in
one year.
'
:
Check the crankcase oil level before
stairting the engine an d after bach five (5)
. hours 0f:cdfltinu0Us use: Tighten 0i! p!ug
securely each time you check the o11level
TO CHANGE ENGINE 0IL
NOTE: Before tipping lawn mower to drain oil,
dra!n fuel tank by running engine until fuel:tank
is empty.
• DiscOnnect spark plug wire from spark plug
and place wire where it cannot come in
contact with spark plug.
• Remove engine oil cap; lay aside on a clean
surface.
• Tip lawn mower on its side as shown and
drain oil into a suitable container. Rock lawn
mower back and forth to remove any oil
trapped inside of engine.
• Wipe off any spilled oil on Iawn mower and
on side of engine,
• Fill engine with oil, Fill only to the "FULL"
ine on the dipstick. DO NOT OVER FILL
•RepIace engine oil cap.
• Reconnect spark plug wire to spark plug.
Container
AIR FILTER
Your engine will not run properly and may be
damaged by using a dirty air filter,
Replace the air filter every year, more often if
you mow in very dusty, dirty conditions, Do no1
wash air filter.
TO CHANGE AIR FILTER
• Remove the air filter by turning counter-
clockwise to the stop and pulf away from
collar.
° Remove filter from inside of cover.
o Clean the inside of the cover and the collar
to remove any dirt accumulation
• Insert new filter into cover.
t0