20
Figure 15
Tires
WARNING:
Never exceed the maximum
inflation pressure shown on the sidewall of
the tire.
The recommended operating tire pressure is
approximately 10 psi for the rear tires and
approximately 14 psi for the front tires. Refer to the
tire sidewall for exact tire manufacturer’s
recommended or maximum psi. Do not overinflate.
Uneven tire pressure could cause the cutting deck to
mow unevenly.
Cutting Blades
WARNING:
Be sure 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 adapter and/or spindle for cracks or
damage, especially if you strike a foreign
object. Replace immediately if damaged.
The blades may be removed as follows.
• Remove the deck from beneath the tractor,
(refer to Cutting Deck Removal) then gently
flip the deck over to expose its underside.
• Place a block of wood between the center
deck housing baffle and the cutting blade to
act as a stabilizer. See Figure 17.
• Use a 15/16" wrench to remove the hex flange
nut that secures the blade to the spindle
assembly. See Figure 16.
Figure 16
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 16.
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 16.
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.
Support Pin
Blade Separation
Worn Blade Edge
Wind Wing
Sharpen Edge Evenly
5/8"
minimum
Spindle Assembly
Hex Flange Nut
Wood Block
