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![](https://files.manualsfile.com/91795532-917383223/bgb.png)
MAINTENANCE
........................ ' .......................... I I I"l'l I I"ll'lmllll
GENERALRECOMMENDATION
* Once a year you should replace the Spark Plug,
Air Filter and check Blade for wear. A new Spark
Plug and Air Filter assures proper air-fuel mix-
ture and helps your engine run better and last
longer°
, You should check al! fasteners and be sure they
are tighL
o Follow the Service Recommendation Schedule on
page 15.
LAWNMOWER
BLADE/BLADEADAPTERCARE FIG. 9
Your lawn mower will work better with a sharp
Blade.
cAuTIoN: DISCONNECTSPARKPLUGWIRE I
,_ FROMSPARKPLUGANDPLACEWIREWHEREI
ITCANNOTCOMEIN CONTACTWITHTHESPARKI
_ PLUG. !
TO REMOVE BLADE:
o Turn lawn mower on itsside° Make sure Air Filter
and Carburetor are up.
o Use block of wood between Blade and Lawn
Mower Housing to prevent Blade from turning
when removing the Blade Baird
o Protect your hands with gloves andlor wrap
Blade with heavy cloth,
o Remove Blade Bolt by turning counter-clockwise.
Use a 9/t6" box or open-end wrench°
* Remove Btade and attaching hardware (Bolt,
Lockwasher and Hardened Washer) (See Fig. 9).
NOTE:Remove the Blade Adapter and check the Key
inside Hub of Blade Adapter. The Key must be in
good condition to work properly. Replace Adapter
if damaged.
TO REPLACE BLADE:
, Position the Blade Adapter on the Engine
Crankshaft. Besure Key in Adapter and Keyway
in Crankshaft are aligned.
• Position Blade on to the Blade Adapter aligning
the two (2) holes in the Blade with the raised Lugs
on the Adapter°
NOTE. Besure the word TOP (stamped on the Blade)
is toward the engine (See Fig. 9),
• Install the Blade Bah with the Lockwasher and
Hardened Washer into Blade Adapter and
Crankshaft (See Fig. 9).
° Use block of wood between Blade and Lawn
Mower Housing and tighten the Blade Bolt, turn-
ing dockwise_
• The recommended tightening torque is 35-40 ft.
Ibso
° Torque wrenches are available at most Sears
stores and through the catalog.
I _ CAUTION:ALOOSEBLADECANBEDANGEROU_
ANDMAYMAKETHEENGINEHARDTOSTART.
Use only a Sears authorized replacement Blade to
get the best cutting results.
NOTE:We do not recommend sharpening Blade - but
if you do, be sure the Blade is balanced.
TO SHARPEN BLADE:
o The Blade can be sharpened with a file or on a
grinding wheel. Do not attempt to sharpen while
on the lawn mower.
• Care should be taken to keep the Blade balanc-
ed. An unbalanced Blade wilt cause excessive
vibration when running and eventual damage to
lawn mower or engine,
o To check Blade balance, drive a nail into a beam
or wallo Leave about one inchof 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, ff either end of the Blade
moves downward, Blade is not balanced.
Sharpen the heavy end until the Blade is
balanced,
11
GRASSCATCHER
° 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,
tf Catcher needs replacing, replace only with a
manufacturer approved replacement Catcher
from Sears. Give the lawn mower model number
when ordering.
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