Craftsman C459.60410 Operator's Manual page 25

4. Connect the other end of the negative cable to the engine block of
the tractor, away from the battery. Attach to an unpainted part to
assure a good connection.
WARNING
If the jumper battery is installed on a vehicle (i.e. car, truck), do NOT
start the vehicle's engine when jump starting your tractor.
5. Start the tractor (as instructed earlier in this section of this
manual).
6. Set the tractor's parking brake before removing the jumper cables,
in reverse order of connection.
CHARGING
WARNING
Batteries give off an explosive gas while charging. Charge the battery
in a well ventilated area and keep away from an open flame or pilot
light as on a water heater, space heater, furnace, clothes dryer or
other gas appliances.
CAUTION
When charging your tractor's battery, use only a charger designed for
12V lead-acid batteries. Read your battery charger's Owner's Manual
prior to charging your tractor's battery. Always follow its instructions
and heed its warnings.
If your tractor has not been put into use for an extended period of time,
charge the battery as follows:
1. Set your battery charger to deliver a max of 10 amperes.
2. If your battery charger is automatic, charge the battery until the
charger indicates that charging is complete. If the charger is not
automatic, charge for no fewer than eight hours.
FUSE
One 20 AMP fuse is installed in your tractor's wiring harness to protect
the tractor's electrical system from damage caused by excessive
amperage.
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 at the rear of the unit, underneath the fender located by the
battery.
WARNING
Always use a fuse with the same amperage capacity for replacement.
CUTTING BLADES
WARNING
Shut the engine off and remove ignition key before removing the
cutting blade(s) for sharpening or replacement. Protect your hands
by using heavy gloves when grasping the blade.
WARNING
Periodically inspect the blade and/or spindle for cracks or damage,
especially after you've struck a foreign object. Do not operate the
machine until damaged components are replaced.
SERVICE AND MAINTENANCE
To remove the blades, proceed as follows.
1. Remove the deck from beneath the tractor, (refer to Cutting Deck
Removal earlier in this section) then gently flip the deck over to
expose its underside.
2. Place a block of wood between the center deck housing baffle
and the cutting blade to act as a stabilizer.
See Figure 26.
3. Remove the hex flange nut that secures the blade to the spindle
assembly.
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 27.
If the cutting edge of the blade has previously been sharpened, or if
any metal separation is present, replace the blades with new ones.
25
CAUTION
Figure 26
Figure 27