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. 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 26).
2. If there are no flats on the spindle shaft, wedge a |
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wooden block between the mower blade and the mower |
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Figure 26. Loosening the Mower Blade for Removal | ||||
deck housing to keep the mower blade from turning. | ||||
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Inspecting the Mower Blades |
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DANGER |
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Avoid injury! A worn or damaged blade can |
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break, and a piece of the mower blade could be |
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| Reproduction |
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thrown into the operator’s or bystander’s area, | for |
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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. | Not |
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• If the mower blade hits a solid object, s op |
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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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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 27 & 28). Disca d |
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the mower blade if it has any of the below |
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conditions. |
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A.) Has more than .5” (12,7 mm) of the mow r blade |
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| Figure 27. inspecting the Mower Blade Tips |
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metal removed from previous sharpening or w ar (D, |
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| A. Mower Blade Cutting Edge |
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Figure 28). |
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| B. Square Corner |
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B.) The air lifts are excessively eroded (B & C, Figure |
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| C. Air Lift |
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28) and the notch (C) is .25” (6,35 mm) deep or greater. | D. Wear Measurement - DISCARD Mower Blade If |
C.) Mower blade is bent or broken. | greater than .5” (12,7 mm) |
3. If the cutting edges are not sharp or have nicks, sharpen |
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the blades. See Sharpening the Mower Blades. |
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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
C
(If notch measures .25” (6,35 mm) or greater DO NOT USE Replace with new mower blade.)
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