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Servicing The Mower Blades
Removing the Mower Blade
1. To remove the mower blade, use a 1” wrench on the
flats of the spindle shaft and remove the mower blade
mounting bolt with a 15/16” wrench (Figure 30).
2. If there are no flats on the spindle shaft, wedge a
wooden block between the mower blade and the mower
deck housing to keep the mower blade from turning.
Inspecting the Mower Blades
1. Remove the mower blade from the unit.
2. Inspect the mower blade (Figures 31 & 32). Discard the
mower blade if it has any of the below conditions.
A.) Has more that .5” (12,7 mm) of the mower blade
metal removed from previous sharpening or wear (D,
Figure 31)
B.) The air lifts are excessively eroded (B & C, Figure
32) and the notch (C) is .25” (6,35 mm) deep or greater.
C.) Mower blades is bent or broken.
3. If the cutting edges are not sharp or have nicks, sharpen
the blades. See Sharpening the Mower Blades.
Figure 30. Loosening the Mower Blade for Removal
Figure 31. Inspecting the Mower Blade Tips
A. Mower Blade Cutting Edge
B. Square Corner
C. Air Lift
D. Wear Measurement - DISCARD Mower Blade If greater
than .5” (12,7 mm)
B
D
A
B
C
Figure 32. inspecting the Mower Blade Air Lifts
A. New Mower Blade
B. Mower Blade at Wear Limit (A notch begins to form)
C. Mower Blade in Dangerous Condition (Notch measures
.25” (6,35 mm) or greater DO NOT USE. Replace with new
mower blade.)
C
A
C
A
DANGER
Avoid injury! A worn or damaged blade
can break, and a piece of the mower
blade could be thrown into the operator’s
or bystander’s area, resulting in serious
personnal injury or death.
• Inspect the mower blade every 25 hours or atleast once
a 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.
Maintenance
CAUTION
Avoid injury! Mower blades are sharp.
Always wear gloves when handling mower blades or
working near blades.
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