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Craftsman EZ3 917.273022 Owner's Manual page 20

20.0 hp electric start 46" mower automatic garden tractor
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TRACTOR
Alwaysobsewesafety ruleswhen per-
formingany maintenance.
BRAKEOPERATION
If tractorrequirosmorethansix (6) feet
stoppingdistanceat high speedin highest
gear,thenbrake
must be adjusted. (See
"TO ADJUST BRAKE" in the Service and
Adjustments section of this manual).
TIRES
• Maintain proper air pressure in all tiros
(See "PRODUCT
SPECIFICATIONS"
on page 5 of this manual).
• Keep tires free of gasoline, oil, or insect
control chemicals which can harm rub-
ber.
• Avoid stumps, stones, deep ruts, sharp
objects and other hazards that may
cause tire damage.
NOTE: To seal tire punctures and prevent
flat tires dueto slow leaks, tire sealant
may be purchesed from your local pads
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 trac-
tor does not function as descdbed below,
repair the problem immediately.
• The engine should not start unless the
• clutch/brake pedal is fully depressed
and attachment 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 affachment 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 allow
access to blades.
• Remove hex bqit, lock washer and flat
washer secudng 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 Edge Up
Mandrel
Flat
"_
CenterHole
_F_
embly
Washer_/
8)* _
L_ckWasher_-_.._
*A Grade 8 heat treated bolt can be
identified by six lines on the bolt head.
TO SHARPEN
BLADE
NOTE: We do not recommend sharpening
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 gdnding wheel. Do not attempt
to sharpen while it is on the mower.
• To check blade balance, you will need a
5/8" diameter steel belt, pin, or a cone
balancer. (When using a cone balancer,
follow the instructions supplied with bal-
ancer).
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 unthroaded
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 hod-
zontal position. If either end of the blade
moves downward, sharpen the heavy
end until the blade is balanced.
Center Hole
5/8"
Blade
BATTERY
Your tractor has a battery charging system
which is sufficient for normal use.
However, periodic charging of the battery
with an automotive charger will extend its
life.
2O

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