Troy-Bilt TB30 Operation Manual - Page 29

Changing the Transmission Drive Belt

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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 Troy-bilt Service Dealer to have your drive belt replaced or phone Customer Support as instructed on page 2 for information on ordering a Service Manual. Section 7 - Service 29

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29
S
ECTION
7 — S
ERVICE
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 Troy-bilt Service Dealer to have your drive belt
replaced or phone Customer Support as instructed on page 2 for
information on ordering a Service Manual.