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Cutting Blades
,_ WARNING:Be sure to shut the engine
off, removeignitionkey, disconnectthe
spark plug wire(s) and ground against
the engine to prevent unintended starting
before removing the cutting blade(s) for
sharpening or replacement. Protect your
hands by using heavy gloves or a rag to
grasp the cutting blade.
WARNING:Periodically inspect the blade
spindles for cracks or damage, especially
if you strike a foreign object. Replace
immediately if damaged.
Thebladesmaybe removedas follows.
1. Removethe deckfrombeneaththe tractor,(referto
CuttingDeckRemovalon page23) thengentlyflip
the deckoverto exposeits underside.
2. Placea blockof wood betweenthe centerdeckhous-
ingbaffleand the cuttingbladeto act asa stabilizer.
SeeFig.6-5.
3. Removethe hexflangenutthat securesthe bladeto
the spindleassembly.See Fig.6-5.
4. Toproperlysharpenthe cutting blades,removeequal
amountsof metalfrombothends of the bladesalong
the cuttingedges, parallelto the trailingedge,at a
25° to 30° angle.
IMPORTANT:If the cuttingedgeof the bladehasalready
beensharpenedto within 15/8" fromthe edge,or if any
metalseparationis present,replacethe bladeswith new
ones.SeeFig.6-6.
,, It is importantthateachcuttingblade edgebeground
equallyto maintainproperbladebalance.
,, A poorlybalancedbladewill causeexcessive
vibrationand maycausedamageto thetractorand
resultinpersonalinjury.The bladecan be testedby
balancingit ona roundshaftscrewdriver.Grind metal
fromthe heavysideuntil it balancesevenly.
,, Whenreplacingthe blade,be sureto installthe blade
withthe sideof the blademarked"Bottom" (or with
a part numberstampedin it) facingthe groundwhen
the moweris inthe operatingposition.
iMPORTANT:Useatorquewrenchto tightenthe blade
spindlehexflangenutto between70 foot-poundsand 90
foot-pounds.
F
f
Figure 6-5
Figure 6-6
Idlerpulleys
Idlerpulleynuts
Figure 6-7
ng
Your Lawn
I Be sure to shut the
lengine off, remove
iignition key, discon-
inect the spark plug
wire(s) and ground
against the engine to
_revent unintended
starting before remov-
ing the cutting blade(s)
for sharpening or
replacement. Protect
your hands by using
heavy gloves or a rag
to grasp the cutting
blade.
Periodicallyinspect
the blade spindles for
cracks or damage,
especially if you strike
a foreign object.
Replace immediately if
damaged.
25
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