30 Section 7— Service
4. 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. Always grind each cutting blade edge equally to
maintain proper blade balance. See Figure 7-8.
Figure 7-8
WARNING! If the cutting edge of the blade has
previously been sharpened, or if any metal
separation is present, replace the blades with new
ones.
WARNING! A poorly balanced blade will cause
excessive vibration, may cause damage to the
tractor and/or result in personal injury.
5. Test the blade’s balance using a blade balancer. Grind
metal from the heavy side until it balances evenly.
NOTE: When replacing the blade, be sure to install the
blade with the side of the blade marked ‘‘Bottom’’ (or with
a part number stamped in it) facing the ground when the
mower is in the operating position.
CAUTION! Use a torque wrench to tighten the
blade spindle hex flange nut to between 70 lbs-ft
and 90 lbs-ft.
Changing the Transmission Drive Belt
NOTE: Several components must be removed and special tools
(i.e. air/impact wrench) in order to change the tractor’s drive belt.
See an authorized service dealer to have your drive belt replaced
or phone Customer Support to find a dealer near you.
See page 2 for details.
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