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Craftsman 917.273821 - Brake Operation; Operator Presence System; Blade Removal; To Sharpen Blade

Craftsman 917.273821
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TRACTOR
Alwaysobservesafety ruleswhen per-
forminganymaintenance.
BRAKE OPERATmON
If tractor requiresmorethansix (6) feet
stoppingdistanceat highspeed in highest
gear,then brakemust beadjusted.(See
"TOADJUSTBRAKE"inthe Service and
Adjustmentssectionof this manual).
TmRES
* Maintainproperair pressureinall tires
(See"PRODUCTSPECIFICATIONS"
sectionof this manual).
, Keeptires free of gasoline,oil, or insect
controlchemicalswhichcan harmrub-
ber.
* Avoidstumps,stones,deep ruts,sharp
objectsand other hazardsthat may
causetire damage.
NOTE:Toseattire puncturesand prevent
flat tiresdueto slowleaks,tire sealant
maybe purchasedfromyour local parts
dealer.Tire sealantalso preventstire dry
rotandcorrosion.
OPERATORPRESENCESYSTEM
Besure operatorpresenceand interlock
systemsare workingproperly. Ifyour trac-
tor doesnot functionas described,repair
the problemimmediately.
The engine shouldnotstart unless
the brakepedalis fully depressedand
attachementclutchcontrolis inthe
disengagedposition.
When the engine is running,anyat-
tempt bythe operatorto leavethe seat
withoutfirstsettingthe parkingbrake
shouldshut off the engine.
When the engine is runningandthe
attachmentclutch isengaged,any at-
tempt bythe operatorto leavethe seat
shouldshut off the engine.
The attachmentclutchshouldneverop-
erate unlessthe operatoris in the seat.
BLADE CARE
Forbestresultsmowerbladesmustbe
keptsharp. Replacebent or damaged
blades.
BLADE REMOVAL
1. Raisemowerto highestpositionto al-
lowaccessto blades.
2. Removebladebolt, lockwasherand
flatwashersecuringblade.
3. Installnewor resharpenedblade
withtrailingedge uptowardsdeckas
shown.
mMPORTANT:Toensure properassembly,
centerhole in blademustalignwith star
on mandrelassembly.
4. Reassemblebladebolt, lockwasher
andflat washer inexact orderas
shown.
5. Tightenbladeboltsecurely (27-35Ft.
Lbs.torque).
mMPORTANT:Bladebolt is heattreated.
If boltneeds replacing,replaceonlywith
approveboltshown inthe RepairParts.
Trailing Mandrel As: _embly
Edge
Center
Hole
Flat
Lock Washer_._
_Blade Bolt
TO SHARPEN BLADE
NOTE: We do not recommend sharp-
ening 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 on the mower.
To check blade balance, you will need a
5/8" diameter steel bolt, pin, or a cone
batancer. (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 on to 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
horizontal position. If either end of the
blade moves downward, sharpen the
heavy end until the blade is balanced.
5/8" Bolt or Pin
Blade
Center Hole
BATTERY
Your tractor has a battery charging system
which is sufficient for normal use. How-
ever, periodic charging of the battery with
an automotive charger will extend its life.
Keep battery and terminals clean.
19

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