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Craftsman EZ3 917.272190 Owner's Manual page 20

25.0 hp electric start 46" mower 6 speed transaxle

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TRACTOR
Always observe safety rules when
performing
any maintenance.
BRAKE OPERATION
If tractor requires more than six (6) feet
stopping distance
at high speed in
highest gear, then brake must be ad-
justed. (See '%0 ADJUST BRAKE" in the
Service and Adjustments
section of this
manual).
TIRES
• Maintain proper air pressure
in all tires
(See "PRODUCT
SPECIFICATIONS"
section of this manual).
• Keep tires free of gasoline,
oil, or insect
control chemicals
which can harm
rubber.
• Avoid stumps, stones, deep ruts, sharp
objects and other hazards that may
cause tire damage.
NOTE: To seal tire punctures
and prevent
flat tires due to slow leaks, tire sealant
may be purchased
from your local parts
dealer. Tire sealant also prevents tire dry
rot and corrosion.
OPERATOR
PRESENCE
SYSTEM
Be sure operator presence
and interlock
systems are working properly.
If your
tractor does not function
as described,
repair the problem
immediately.
• The engine should not start unless the
clutch/brake pedal is fully depressed
and attachement
clutch control is in the
disengaged
position.
• When the engine is running,, any
attempt by the operator to leave the
seat without first setting the 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 clutch should 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
• Raise mower to highest position to al-
low access to blades.
• Remove hex bolt, lock washer and flat
washer securing blade.
• Install new or resharpened
blade with
trailing edge up towards deck as
shown.
IMPORTANT:
To ensure proper assembly,
center hole in blade must align with
star on mandrel assembly.
• Reassemble
hex bolt, lock washer and
flat washer in exact order as shown.
• Tighten bolt securely (27-35 Ft. Lbs.
torque).
IMPORTANT:
Blade bolt is Grade 8 heat
treated.
Trailing
Mandrel
Flat
Center
Lock
Hole
Washer
_'_
_.._
Hex Bolt
(Grade 8)*
*A Grade 8 heat treated bolt can be
identified by six lines on the bolt head.
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 excessive
vibration and eventual
damage to mower and engine.
• The blade can be sharpened with a file
or on a grinding wheel. Do not attempt
to sharpen while it is on the mower.
• To check blade balance, you will need
a 5/8" diameter steel bolt, pin, or a cone
balancer. (When using a cone balancer,
follow the instructions supplied 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 onto an unthreaded portion
of the steel bolt or pin and hold the bolt
or pin parallel with the ground. If blade
is balanced, it should remain in a hori-
zontal position. If either end of the
blade moves downward, sharpen the
heavy end until the blade is balanced.
Center Hole
Blade
5/8" Bolt
or Pin
BATTERY
Your tractor has a battery charging systen
which is sufficient for normal use. How-
ever, periodic charging of the battery with
an automotive charger will extend its life.
20

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