Craftsman 917272066 ELECTRIC START 42" MOWER AUTOMATIC Lawn Tractor

Owner 's Manual - Page 19

For 917272066. Also, The document are for others Craftsman models: 917.272066

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TRACTOR
Always observe safety ruteswhen
performing any maintenance.
BRAKE OPERATION
If tractorrequires morethan six (8) feet
stoppingdistance at high speed in
highestgear, then brake must be ad-
justed. (See "TO ADJUST BRAKE" inthe
Service and Adjustments section of this
manual).
TIRES
Maintain proper air pressure in all tires
(See =PRODUCT SPECIFICATIONS"
section ofthis manual).
Keep tires free of gasoline, oil, or insect
control chemicals which can harm
rubber.
Avoidstumps,stones,deep ruts,sharp
objectsand otherhazardsthatmay
cause tiredamage.
NOTE: To sealtirepuncturesand prevent
flattiresdue toslowleaks,tiresealant
may be purchasedfromyourlocalparts
dealer.Tiresealantalsopreventstiredry
rot and corrosion.
OPERATOR PRESENCE SYSTEM
Be sure operator presence and interlock
systems are working properly, If your
tractor does notfunction as described,
repair the problem immediately.
The engine should not start unless the
brake pedal is fully depressed and
attachemeut clutch control isin the
disengaged position.
When the engine is running, any
attempt by the operator to leave the
seat without first settingthe parking
brake should shut off the engine.
When the engine is running and the
attachment clutch is engaged, any
attempt by the operator to leave the
seat should shut off the engine.
The attachment clutchshould never
operate unless the operator is in the
seat.
BLADE CARE
For best results mower blades must be
kept sharp. Replace bent or damaged
blades.
BLADE REMOVAL
1. Raise mower to highestposition to
allow access to blades.
2. Remove hex bolt, lock washer and flat
washer securing blade.
3. Install new or resharpened blade with
trailing edge up towards deck as
shown.
TO SHARPEN BLADE
NOTE: We do not recommend sharpen-
ing blade - but ifyou do, be sure the
blade is balanced.
Care should be taken to keep the blade
balanced. An unbalanced blade will
cause excessive vibration and eventual
damage to mower and engine.
The blade can be sharpened with a file
or on a gdnding wheel. Do not attempt
to sharpen while on the mower.
To check blade balance, you will need
a 5/8" diameter steel bolt, pin, or a cone
balanoer. (When using a cone bal-
ancer, follow the instructionssupplied
with balancer.)
NOTE: Do not use a nail for balancing
blade. The lobes of the center hole may
appear to be centered, but are not.
Slide blade on to an unthreaded
portion of the steel boltor pin and hold
the bolt or pin parallel with the ground.
If blade is balanced, it should remain in
a hodzontal position. If either end of
the blade moves downward, sharpen
the heavy end untilthe blade is
balanced.
5/8' __ade
Center Hole -_
IMPORTANT: To ensure proper assembly,
center hole in blade must align with star
on mandrel assembly.
4. Reassemble hex bolt, lock washer
and flat washer in exact order as
shown.
5. Tighten bolt securely (27-35 Ft. Lbs.
torque).
IMPORTANT: Blade belt is grade 8 heat
treated.
MandrelAssembly
TrailingEdgeUp
Blade Center
Hole
Flat Washer
L_k Wa_er
i
G_-- Hex Bolt
"A Grade 8 heattreatedboltcan be identified
by sixlineson the bolthead.
19
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