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Craftsman 917270841 Owner's Manual page 19

16.0 hp electric start 42" mower automatic

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TRACTOR
Always
observe
safety rules when per-
forming
any maintenance.
BRAKE OPERATION
If tractor
requires
more than six (6) feet
stopping
distance
at high speed in highest
gear, then brake must be adjusted.
(See
"TO ADJUST
BRAKE"
in the Service and
Adjustments
section of this manual).
TIRES
o Maintain
proper air pressure
in all tires
(See "PRODUCT
SPECIFICATIONS"
on page 5 of this manual),
o Keep tires free of gasoline,
oil, or insect
control chemicals
which can harm rub-
ber_
o 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,.
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 blade&
o Remove
hex bolt, lock washer and flat
washer
securing
blade,
o Install new or resharpened
blade with
trailing
edge up towards
deck as shown.
• Reassemble
hex bolt, lock washer and
flat washer
in exact order as shown
o Tighten
bolt securely
(30-35 Fto Lbs.
torque).
IMPORTANT:
Blade bolt is Grade 8 heat
treated.
Blade
Mandrel
Assembly
Flat Was
Trailing
Lock Washer__8__
Hex Bolt (Grade
"A Grade 8 heat treated bolt can be
identified by six lines on the boit 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 grinding
wheel,. Do not attempt
to sharpen
while it is on the mower.
o To check blade balance,
you will need a
5/8" diameter
steel bolt, pin, or a cone
balancero (When
using a cone balancer,
follow the instructions
supplied
with bal-
anGer)°
o 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°
NOTE:
Do not use a nail for balancing
blade. The lobes of the center
hole may
appear to be centered,
but are not.
Center Hole
5/8" Bolt
or Pin
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_
o Keep battery
and terminals
clean.
o Keep battery
bolts tighL
o Keep small vent holes open.
° Recharge
at 6-t0 amperes
for I hour.
NOTE: The original
equipment
battery on
your tractor is maintenance
free. Do not
attempt to open or remove caps or covers°
Adding or checking
level of electrolyte
is
not necessary_
TO CLEAN
BATTERY
AND TERMINALS
Corrosion
and dirt on the battery and ter-
minals can cause the battery to "leak"
power,
• Open battery box door°
• Disconnect
BLACK
battery cable first
then RED battery
cable and remove
19
batten,, from tractor.

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917.270641