Craftsman 917.273373 Lawn Mower User Manual


 
TRACTOR
Alwaysobservesafetyrubs when per-
forming any maintenance.
BRAKE OPERATmON
If tractor requiresmorethansix (6)feet
stoppingdistanceat highspeedin highest
gear,then brakemustbeadjusted.(See
"TOADJUSTBRAKE"inthe Serviceand
Adjustmentssection of this manual).
TmRES
, Maintain properair pressurein alltires
(See"PRODUCTSPECIFICATIONS"
sectionof this manual).
* Keeptires free of gasoline,oil, or insect
controlchemicalswhichcan harm rub-
ber.
* Avoidstumps,stones,deep ruts,sharp
objectsand otherhazardsthat may
causetire damage.
NOTE:Toseal tire puncturesand prevent
flat tires dueto slow leaks,tire sealant
maybe purchasedfromyourlocal parts
dealer.Tire sealant also preventstire dry
rot and corrosion.
OPERATORPRESENCESYSTEM
Besure operatorpresenceandinterlock
systems areworkingproperly. If yourtrac-
tor does not functionas described,repair
the problemimmediately.
Theengineshouldnot start unlessthe
clutch/brakepedal is fullydepressed
and attachementclutchcontrol is in the
disengagedposition.
Whenthe engineis running,any at-
tempt bythe operatorto leavethe seat
withoutfirstsettingthe parkingbrake
shouldshut offthe engine.
Whenthe engineis runningand the
attachmentclutch is engaged,anyat-
tempt bythe operatorto leavethe seat
shouldshut offthe engine.
The attachmentclutch shouldneverop-
erateunlessthe operatoris in the seat.
BLADE CARE
For best resultsmowerbladesmust be
keptsharp. Replacebentor damaged
blades.
BLADE REMOVAL
1. Raisemowerto highestpositionto al-
low accessto blades.
2. Removebladebolt, lockwasherand
flat washersecuringblade.
3. Installnewor resharpenedblade
with trailing edge uptowardsdeckas
shown.
mlVlPORTANT:Toensure properassembly,
centerhole in blademustalignwith star
on mandrelassembly.
4. Reassemblebladebolt, lockwasher
and flat washer inexact orderas
shown.
5. Tighten bladeboltsecurely (27-35Ft.
Lbs.torque).
mMPORTANT:Bladebolt is heattreated.
If bolt needsreplacing,replaceonlywith
approveboltshown inthe RepairParts.
Mandrel Ass
Trailing
Edge Up Center
Hob
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
balancer. (When using a cone balancer,
follow the instructions supplied with
batancer.)
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 Blade
Pin
Center Hob
18