Sears EZ3 917.387023 - Manual (Page 10)

NOTE: We do not recommend sharpening
blade - but if you do, be sure the blade is
balanced.
Crankshaft
Blade ,
adapter
Blade
bolt Hardened Trailing Blade
washer edge adapter
Lock washer
TO SHARPEN BLADE
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 grindirtg wheel. Do not attempt
to sharpen while on the mower.
"To check blade balance, drive a nail into
a beam or wait. 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 horizontal position, if either end of the
blade moves downward, sharpen the
heavy end until the blade is balanced.
GRASS CATCHER
(If purchased as an accessory)
» The grass 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 or
SH. Select the oil’s SAE viscosity grade
according to your expected operating
temperature.
NOTE: Although multi-viscosity oils
(6W30, 10W30 etc.) improve starting in
cold weather, these multi-viscosity oils will
result in increased oil consumption when
Crankshaft
Check your engine oil level more fre­
quently to avoid possible engine damage
from running low on oil.
Change the oil after every 25 hours of
operation or at least once a year if the
lawn mower is not used for 25 hours in
one year.
Check the crankcase oil level before
starting the engine and after each five (5)
hours of continuous use. Tighten oil plug
securely each time you check the oil level.
TO CHANGE ENGINE OIL,
NOTE: Before tipping lawn mower to drain oil,
drain fuel tank by running engine until fuel tank
is empty.
•> Disconnect spa!l< 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 lawn mower and
on side of engine.
» Fill engine with oil. Fill only to the “FULL”
line on the dipstick. DO NOT OVER F!LL
« Replace engine oil cap,
® Reconnect spark plug wire to spark piug.
AIR RLTER
Your engine will not am 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 not
wash air filter.
TO CHANGE AIR FILTER
• Remove the air filter by turning counier-
cloclwise to the stop and pul! away from
collar.
«■ Remove filter from inside of cover.
« Clean the inside of the cover and the coiiar
to remove any dirt accumulation,
o insert new fiiter into cover.