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23
NOTE:
The hex flange nut has a right-handed
thread pattern. Do NOT attempt to force the nut in
the incorrect direction. Doing so may damage the
nut and create a safety hazard.
Figure 22
To properly sharpen the cutting blades, remove
equal amounts of metal from both ends of the blades
along the cutting edges. See Figure 23.
Sharpen the cutting edge straight across, parallel to
the trailing edge, at a 25° to 30° angle. See Figure
23.
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 23.
Figure 23
It is extremely important that each cutting blade
edge be ground equally to maintain proper blade
balance. An unbalanced blade will cause excessive
vibration when rotating at high speeds, 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’’ (or
with a part number stamped in it) 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.
BATTERY
The battery is sealed and is maintenance-free. Acid
levels cannot be checked.
• Always keep the battery cables and terminals
clean and free of corrosive build-up.
• After cleaning the battery and terminals, apply
a light coat of petroleum jelly or grease to the
terminals and over the positive terminal boot.
• Always keep the boot positioned over the
positive terminal to prevent shorting.
IMPORTANT:
If removing the battery for any
reason, disconnect the NEGATIVE (Black) wire from
it’s terminal first, followed by the POSITIVE (Red)
wire. When re-installing the battery, always connect
the NEGATIVE (Black) wire its terminal first, followed
by the POSITIVE (Red) wire. Be certain that the
wires are connected to the correct terminals.
reversing them could change the polarity and cause
damage to your engine’s alternating system.
Charging
If the unit has not been put into use for an extended
period of time, charge the battery with an
automotive-type 12-volt charger for a minimum of
one hour at six amps.
WARNING:
Batteries give off an
explosive gas during and for some time
after charging. Charge battery in a well
ventilated area and do not allow a spark or
an open flame near the battery.
FUSE
A fuse is installed in your tractor’s wiring harness to
protect the tractor’s electrical system from damage
caused by excessive amperage. Always use the
same capacity fuse for replacement. If the electrical
system does not function, or your tractor’s engine
will not crank, first check to be certain that the fuse
has not blown. It can be found under the hood
mounted behind the top of dash panel on the
support bar. Pull the fuse out and compare it with
Figure 24 to determine if it is good or bad.
Figure 24
Cutting Blade
Block of Wood
Spindle
Assembly
Hex Flange Nut
5
/
8
"
m
i
n
i
mu
m
Blade Separation
Worn Blade Edge
Wind Wing
Sharpen Edge Evenly
GOOD BAD
20
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