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Cutting Blades
,_ WARNING:Besure to shut the engine
off, remove ignition key,disconnect the
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.
The bladesmayberemovedas follows.
1. Removethe deckfrombeneaththe tractor,(referto
CuttingDeckRemovalon page23) thengentlyflip
thedeckoverto exposeitsunderside•
2. Placea blockof wood betweenthe centerdeck hous-
ingbaffleandthe cuttingbladeto act as a stabilizer.
SeeFig.6-5.
3. Removethe hexflangenutthat securesthe bladeto
the spindleassembly.See Fig.6-5.
4. Toproperlysharpenthe cuttingblades,removeequal
amountsof metalfrombothends of the bladesalong
thecutting edges,parallelto the trailingedge,at a
250to 300angle.
IMPORTANT:Ifthe cuttingedgeof the bladehasalready
beensharpenedto within1 5/8" from theedge,or if any
metalseparationis present,replacethe bladeswith new
ones.SeeFig.6-6.
• It is importantthateachcuttingbladeedgebeground
equallyto maintainproperbladebalance•
• A poorlybalancedbladewill causeexcessive
vibrationand maycausedamageto thetractorand
resultinpersonalinjury.The bladecan betestedby
balancingit ona roundshaftscrewdriver.Grind metal
fromthe heavysideuntil it balancesevenly.
• Whenreplacingtheblade,be sureto installthe blade
withthe sideof the blademarked"Bottom" (orwith
a part numberstampedinit) facingthe groundwhen
the moweris inthe operatingposition.
IMPORTANT:Usea torquewrenchto tighten the blade
spindlehexflangenutto between70foot-poundsand90
foot-pounds.
f
Figure 6-5
f
\\\\
Idlerpulleys
Idler pulleynuts
Figure 6-7
25
Maintaining
WARNING
Be sure to shut the
engine off, remove
ignition key, discon-
nect the spark plug
wire(s) and ground
against the engine to
prevent unintended
irting before remov-
the cutting blade(s)
for sharpening or
replacement. Protect
your hands by using
heavy gloves or a rag
to grasp the cutting
blade.
Periodically inspect
the blade spindles for
cracks or damage,
especially ifyou strike
a foreign object.
_laceimmediately if
damaged.
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