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Thread the idler adjustment rod inward or outward to
lengthen
or shorten
the travel of the double-idler
bracket until proper adjustment is achieved.
• Reassemble
by following the above steps in
reverse order.
CUTTING
BLADES
,_
WARNING:
Cutting
blades
are sharp.
Always
protect
hands by wearing
heavy
leather work gloves to grasp blades.
The
blades
may be removed
for sharpening
or
replacement as follows.
• Remove
the deck from beneath the tractor,
(refer
to DECK
REMOVAL
earlier
in this
section for detailed
instructions)
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 20.
• Use a 15/16" wrench to remove the hex flange
nut that secures
the blade
to the spindle
assembly. See Figure 20.
NOTE:
The hex flange
nut has a right-handed
thread pattem. Do NOT attempt to force the nut in
the incorrect
direction.
Doing so may damage
the
nut and create a safety hazard.
_eHex
Flange Nut
Block of Wood
Figure 20
To properly
sharpen
the
cutting
blades,
remove
equal amounts of metal from both ends of the blades
along the cutting edges. See Figure 21.
Sharpen the cutting edge straight across, parallel to
the trailing edge, at a 25 ° to 30 ° angle. See Figure
21.
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 21.
Worn Blade Edge _j_
Blade Separation
Wind Wing
/
__
minimum
Figure 21
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 POSITIVE
(Red) wire its terminal first, followed
by the NEGATIVE
(Black) 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.
22
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