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Figure 17
• To properly sharpen the cutting blades, remove
equal amounts of metal from both ends of the
blades along the cutting edges, parallel to the
trailing edge, at a 25° to 30° angle. See Figure 18.
Figure 18
IMPORTANT:
If the cutting edge of the blade has already
been sharpened to within 5/8" of the wind wing radius,
or if any metal separation is present, replace the blades
with new ones. See Figure 18.
It is important that each cutting blade edge be ground
equally to maintain proper blade balance.
A poorly balanced blade will cause excessive vibration
and may cause damage to the tractor and result in
personal injury. The blade can be tested by balancing it
on a round shaft screwdriver. Grind metal from the
heavy side until it balances evenly.
When replacing the blade, be sure to install the blade
with the side of the blade marked ‘‘Bottom’’facing the
ground when the mower is in the operating position.
IMPORTANT:
Use a torque wrench to tighten the blade
spindle hex flange nut to between 70 foot-pounds and
90 foot-pounds.
Changing the Transmission Drive Belts
NOTE: Several components must be removed and
special tools (i.e. air/impact wrench) in order to change
the tractor’s drive belts. See an authorized Troy-Bilt
Service Dealer to have your drive belts replaced or
phone Customer Support as instructed on page 2 for
information on ordering a Service Manual.
Spindle Assembly
Hex Flange Nut
Wood Block
Blade Separation
Worn Blade Edge
Wind Wing
Sharpen Edge Evenly
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