Regular Maintenance
Sharpening the Mower BladesA
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| CAUTION |
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| Avoid injury. Mower blades are sharp. |
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| • Always wear gloves when handling mower |
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| blades or working near blades. |
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| • Always wear safety eye protection when |
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| grinding |
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1. | Sharpen the mower blade with a grinder, hand file, | |||||||
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| Figure 24. Sharpening the Mower Blade | |||||||
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| or electric blade sharpening. |
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| A. Mower Blade Bevel | |||||
2. | Sharpen the mower blade by removing an equal |
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| B. Mower Blade Cutting Edge | |||||||
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| amount of material from each end of the mower |
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| blade. |
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3. | Keep the original bevel (A, Figure 24) when |
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| grinding. Do NOT change the mower blade bevel. |
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4. | The mower blade should have a maximum 1/64” |
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| (0,40 mm) cutting edge (B) or less. |
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5. | Balance the mower blade before installing. |
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| Balancing the Mower Blades | Reproduction |
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CAUTION |
| orf | A | |
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| Avoid injury. Keep mower blades balanced. |
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| • An unbalanced mower blade can create |
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| Not |
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| excessive vibration and damage the unit or |
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| cause mower blade failure. |
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| Fig re 25. Balancing the Mower Blade |
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1. Clean the mower blade to remove any dried grass | A. Nail |
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or other debris. |
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2. See Figure 25. Put the mower blade on a nail in a |
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vise and turn the blade to the horizontal position. |
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3. Check the balance of the mower blade. If either |
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end of the mower blade moves downward, |
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sharpen the heavy end until the mow r blade is |
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balanced. See SHARPENING THE MOWER |
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BLADES for proper sharpening instructions. |
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4. Repeat the process until the mower blade remains |
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in the horizontal position. |
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| Reinstalling the Mower Blades |
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1. Reinstall each mower blade with the air lifts |
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pointing up towards the mower deck as shown in |
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Figure 26. Secure with the mower blade mounting |
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bolt and flat washer (A & B, Figure 26) and torque |
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to 70 ft. lbs (94 Nm). |
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2.Wedge a wooden block between the mower blade and the mower deck housing to keep the mower
blade from turning. | Figure 26. Tightening the Mower Blade for |
| Installation |
| A. Mower Blade Mounting Bolt |
| B. Flat Washer |
| C. Mower Blade Air Lift (Points Up For Installation) |
| D. 4 X 4 Wooden Block |
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