Regular Maintenance
SERVICING THE MOWER BLADES
Removing the Mower Blade
CAUTION
Avoid injury! Mower blades are sharp.
• Always wear gloves when handling mower blades or working near blades.
1. | See Figure 12. To remove the mower blade, |
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| wedge a wooden block between the mower blade |
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| and the mower deck housing to keep the mower |
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| blade from turning, then remove the mower blade |
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| and the blade retaining hardware. |
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| Figure 12. Loosening the Mower Blade for | ||||||||||
| DANGER |
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| Removal |
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Avoid injury! A worn or damaged blade can |
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| B |
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break, and a piece of the mower blade could be |
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thrown into the operator’s or bystander’s area, |
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resulting in serious personal injury or death. |
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| • Inspect the mower blade every 25 hours or at |
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| least once a year. | Reproduction | |||||||||||
| • If the mower blade hits a solid object, stop | for |
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| the engine immediately and inspect the mower |
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| blade. |
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| • Never weld or straighten bent mower blades. |
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Inspecting the Mower Blades |
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1. | Remove the mower blade from the unit. See |
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| Removing the Blade. |
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2. | Inspect the mower blade (Figures 13 & 14). |
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| Discard the mower blade if it has any of the |
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| below conditions. |
| Not |
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| A.) Has more than .5” (12,7 mm) of the mower |
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| blade metal removed from previous shar ning or | C |
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| wear (D, Figure 13). |
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| Figure 13. inspecting the Mower Blade Tips | |||||||||
| B.) The air lifts are excessively erod d (B & C, |
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| A. Mower Blade Cutting Edge | |||||||||||
| Figure 14) and the notch (C) is .25” (6,35 mm) |
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| B. Square Corner |
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| deep or greater. |
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| C. Air Lift |
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| C.) Mower blade is bent or broken. |
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| D. Wear Measurement - DISCARD Mower Blade If | |||||||||||
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3. | If the cutting edges are not sharp or have nicks, |
| greater than .5” (12,7 mm) | ||||||||||
sharpen the blades. See Sharpening the Mower Blades.
A 
B
Figure 14. inspecting the Mower Blade Air Lifts
C
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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