Regular Maintenance
Servicing The Mower Blades
Removing the Mower Blade
WARNING
Avoid injury! Mower blades are sharp.
Always wear gloves when handling mower blades or working near blades.
1.Wedge a wooden block between the mower blade and the mower deck housing to keep the mower blade from turning.
2.To remove the mower blade, use a 15/16” wrench to remove the mower blade mounting bolt (Figure 26).
Inspecting the Mower Blades
WARNING
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.
1.Inspect the mower blade (Figures 27 & 28). Discard the mower blade if it has any of the below conditions.
•Has more than .5” (12,7 mm) of the mower blade metal removed from previous sharpening or wear (D, Figure 27).
•The air lifts are excessively eroded (B & C, Figure 28) and the notch (C) is .25” (6,35 mm) deep or greater.
•Mower blade is bent or broken.
2.If the cutting edges are not sharp or have nicks, sharpen the blades. See Sharpening the Mower Blades.
Figure 26. Loosening the Mower Blade for Removal
B | A |
C | A |
D |
|
C |
|
Figure 27. 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)
C
AB
Figure 28. 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.)
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