2.
Place a block of wood between the center deck housing baffle and the
cutting blade to act as a stabilizer. See Figure 30.
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 31.
If the cutting edge of the blade has previously been sharpened, or if any
metal separation is present, replace the blades with new ones.
A poorly balanced blade will cause excessive vibration, may damage to the
mower and/or result in personal injury.
5.
Test the blade's balance using a blade balancer. Grind metal from the heavy
end until the blade balances evenly.
NOTE: 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.
Use a torque wrench to tighten the blade spindle hex flange nut to
between 70 lbs-ft and 90 lbs-ft.
The cutting blades must be installed perpendicular to each other. If the
blades cannot be installed perpendicular to each other, the blade timing
belt must be reset. See your Sears or other qualified service dealer to have
the deck timing belt reset.
Trail Shield
Never operate the mower without the trail shield in place and working.
Failure to do so can result in personal injury.
To replace the trail shield, proceed as follows:
1.
Remove the screw which secures the trail shield to the right side of the
mower. See Figure 32.
2.
Bow the trail shield inward on each side to release it from the mower frame.
3.
Install the replacement trail shield by following the steps above in the
opposite order and manner of removal.
SERVICE AND MAINTENANCE
CAUTION
WARNING
CAUTION
CAUTION
WARNING
24
Figure 30
Figure 31
Figure 32