Not for
Reproduction
4.
Repeat the process for the other side of the machine.
Servicing the Mower Blades
Removing the Mower Blades
CAUTION
Laceration hazard
Mower blades are sharp.
Always wear gloves when handling, or working near, mower
blades.
1.
Use a block of wood to prevent the mower blade from
turning as shown in Figure 29.
29
2.
Using a wrench, remove the bolt securing the blade to the
spindle.
Inspecting the Mower Blades
DANGER
Thrown objects hazard
Avoid injury: a worn or damaged mower blade can break and
a piece of the blade could be thrown into the operator's area
or bystander's area resulting in serious personal injury or
death.
• Inspect the mower blade every 25 hours or at least once
per year.
• If the mower blade hits a solid object, stop the engine
immediately and inspect the mower blades.
• Never weld or straighten bent mower blades.
1.
Remove the mower blade from the unit. See Removing the
Mower Blades.
2.
Inspect the mower blade (Figures 30 and 31). Discard the
mower blade if it has any of the following conditions:
• More than .5" (12,7 mm) of the mower blade metal has
been removed from previous sharpening or wear (A,
Figure 30)
• The air lifts are excessively eroded (A, Figure 31) and
the notch (B) is .25" (6,35 mm) deep or greater.
• The mower blade is broken or bent.
30
31
3.
If the cutting edges are not sharp or have nicks, sharpen
the blades. See Sharpening the Mower Blades.
Sharpening the Mower Blades
WARNING
Thrown objects and fire hazard
Grinding mower blades throws sparks and fine metal particles
that are capable of igniting gasoline and gasoline vapors, and
that can injure unprotected eyes.
Be sure all flammable materials are cleared from the area
where grinding will occur.
Always wear safety glasses or goggles when grinding mower
blades.
1.
Sharpen mower blades with a grinder, hand file, or electric
blade sharpener.
2.
Sharpen the blade by removing an equal amount of material
from the cutting edge of each end of the blade.
26
