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Craftsman 917.271380 Owner's Manual page 19

15.5 hp, electric start, 38" mower automatic lawn tractor

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TRACTOR
Always o bserve safety r ules w hen per-
forming anymaintenance.
BRAKE O PERATION
Iftractor r equires more than six(6)feet
stopping distance athigh speed inhighest
gear, thenbrake m ust b eadjusted. (See
"TO ADJUST BRAKE" intheService and
Adjustments
section ofthismanual).
TIRES
- Maintain proper airpressure inalltires
(See "PRODUCT
SPEClF!CATIONS
'_
onpage 5ofthis manual).
Keep t ires free ofgasoline, oil, o rinsect
control chemicals which canharm 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 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 that operator presence and inter-
lock systems are working properly. If your
tractor does not function as described
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 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 allow
access to blades.
Remove hex bolt, lock washer and f!at
washer securing blade.
Install new or resharpened blade with
trailing edge up towards deck as shown.
iMPORTANT:
To ensure proper assem-
bJy,center ho_e in blade must align with
star on mandrel assembly.
o ReassemMe 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.
Mandrel
Trailing
Blade
Star
Edge Up_
.
\
Flat Washer_
Hex Bolt
"_'_-_.
_-_--_
Center
(Grade 8)* \__p i_'_'_u
:
i,
Ho,e
__OCKWaS_ _er
*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 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 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 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/x
/
5/8" Bolt
_ _,L_'_..
/
or Pin _
_
"_._7_-.[,<
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.
19

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Ez3 917.271380