MTD 769-01645A - Page 27

S
Cutting Blades ff
WARNING: Be sure to shut
the engine off, remove ignition
key,disconnect the spark plug
wire(s) and groundagainst the
engine to prevent unintended
starting before removing the cut-
ting blade(s) for sharpening or
replacement. Protect your hands
by using heavy glovesor 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 immedi-
atdy if damaged.
Thebladesmayberemovedas follows.
1. Removethedeckfrombeneaththetractor,(referto
Cutting Deck Removal)thengentlyflip thedeck
overtoexposeitsunderside.
2. Placea blockof wood betweenthe centerdeckhous-
ingbaffleandthecuttingbladetoact as a stabilizer.
SeeFigure24.
3. Usea 15/16"wrenchtoremovethe hexflangenut
thatsecuresthe bladetothe spindleassembly.See
Figure24.
4. Toproperlysharpenthe cuttingblades,removeequal
amountsof metalfrombothends of the bladesalong
thecuttingedges,paralleltothetrailingedge,at a
250to300angle.
IMPORTANT:Ifthecuttingedgeofthebladehasalready
beensharpenedtowithin15/8" fromtheedge,or if any
metalseparationis present,replacethe bladeswith new
ones.SeeFigure25.
It is importantthateachcuttingbladeedgebeground
equallyto maintainproperbladebalance.
Whenreplacingtheblade,be suretoinstalltheblade
withthesideoftheblademarked"Bottom" (orwith
a part numberstampedinit) facingthegroundwhen
themowerisintheoperatingposition.
Figure 24
\\
1-5/8 inch
Figure 25
iMPORTANT:Usea torquewrenchto tightenthe blade
spindlehexflangenut to between70foot-poundsand90
foot-pounds.
Fuses
• A fuseisinstalledinyourtractor'swiringharnessto
protectthe tractor'selectricalsystemfromdamage
causedbyexcessiveamperage.
• Ifthe electricalsystemdoesnotfunction,or your
tractor'senginewillnotcrank,firstchecktobecertain
thatthefusehasnotblown.
Itcaneitherbefoundunderthehoodmountedbehind
thetopofthedashpanelon the supportbar,or under
theseatmountedtotheinsideofthetractorframe
nexttothebatterytray.
,__ Alwaysuse a fuse with the same
amperage capacity for replace-
ment.
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
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.
Periodically inspect
the blade spindles for
cracks or damage,
especially if you strike
a foreign object.
:teplace immediately if
damaged.
Always use a fuse with
the same amperage
capacity for replace-
ment.
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