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t B .I
t (118" LessThan A) -I
FIGURE 17.
CUTTING BLADES
A. Removal for Sharpening or Replacemen
&
WARNING: Be sure to disconnect and
ground the spark plug wire(s) and remove
ignition key before working on the cutting
blade to prevent accidental engin.= start-
ing. Protect hands by using heavy gloves
or a rag to grasp the cutting blade.,;.
1. Remove the hex flange nut which holds tt_e blade
to the blade spindle.
2. Remove the blade from the spindle.
B. Sharpening
Remove the cutting blades by following the di'ections
of the preceding section.
When sharpening the blades, follow the origin ]1 angle
of grind as a guide. It is extremely important tl"at each
cutting edge receives an equal amount of grir lding to
prevent an unbalanced blade. An unbalance :l blade
will cause excessive vibration when rotating at high
speeds, may cause damage to the mower ar d could
break, causing personal injury.
The blade can be tested for balance by balanc ng it on
a round shaft screwdriver. Remove metal fr3m the
heavy side until it balances evenly.
C. Reassembly
When replacing blades, be sure to install th,,_ blade
with the side of the blade marked "Bottom" _or with
part number) facing the ground when the mower is in
the operating position. Carefully align "star" o i blade
with "star" on spindle. Secure with hex flange n__t.
Blade Mounting Torque
Hex Flange Nut: 1080 in. lb. min., 1230 in. lb. m{x.
To ensure safe operation of your unit, all nuts a__dbolts
must be checked periodically for correct tJghtnes _.
BATTERYCAREAND MAINTENANCE
(TYPE "A" BATTERY)
Type "A" batteries are sealed and are maintenance
free.
BATTERYCAREAND MAINTENANCE
(TYPE "B" BATTERY)
CHECK FLUID LEVEL
Check fluid level inside each cell of the battery every
two weeks and before and after charging. Always keep
level between maximum and minimum fill level.
Add only distilled water. Never add additional acid
or any other chemicals to the battery after initial
activation.
NOTE: After operating the lawn tractor for a long
period of time, check the fluid level in the battery as it
can overheat and lose fluid.
CHARGING THE BA'R'ERY (ALL BATTERIES)
The engine is equipped with an alternator which
charges battery when tractor is operated. Under
normal conditions, the battery only needs to be
charged before, during and after off-season storage.
Follow the instructions under "Off-Season Storage."
To charge the battery: Battery P/N 725-1705B_
Charge at 2-3 amps for one hour. Battery P/N 725-1707B
and 725-0453E--Charge at 6 amps for one hour.
REMOVING / INSTALLING / JUMP STARTING
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WARNING: When removing or installing
the battery, follow these instructions to
prevent the screwdriver from shorting
against the frame.
Removing the Battery: Disconnect negative cable
first, then positive cable.
Installing the Battery: Connect positive cable first,
then negative cable.
Jump Starting
1. First, connect end of one jumper cable to the
positive terminal of the good battery, then the
other end to the positive terminal of the dead
battery.
2. Connect the other jumper cable to the negative
terminal of the good battery, then to the FRAME
OF THE UNIT WITH THE DEAD BATTERY.
_ ARNING: Failure to use this procedure
could cause sparking, and the gas in
either battery could explode.
CLEAN THE BATTERY
Clean the battery by removing it from the unit and
washing with a baking soda and water solution. If nec-
essary, scrape the battery terminals with a wire brush
to remove deposits. Coat terminals and exposed wir-
ing with grease or petroleum jelly to prevent corrosion.
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