Regular Maintenance
Sharpening the Mower Blade | A |
CAUTION
Avoid injury! Mower blades are sharp.
| • Always wear gloves when handling the mower |
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| blades. |
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| • Always wear safety eye protection when |
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| grinding. |
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1. | Sharpen the mower blades with grinder, hand file, |
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Figure 21. Sharpening the Mower Blade | ||||||
| or electric blade sharpener. | |||||
| A. Mower Blade Bevel | |||||
2. | Sharpen the mower blade by removing an equal | |||||
B. Mower Blade Cutting Edge | ||||||
| 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 21) 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 blades before installing.
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| Reproduction |
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Balancing the Mower Blades | orf |
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CAUTION |
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Avoid injury! Keep mower blades balanced. |
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| Not |
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• An unbalanced mower blade can crea e |
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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 22. 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 22. Put the mower blade on a nail in |
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a vise and turn the mower blade to the horizontal |
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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 Mow r Blad s for |
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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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| A |
Reinstalling the Mower Blades |
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| D |
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WARNING |
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For your personal safety, each mower blade |
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mounting bolt must be installed with a hex/ |
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spline washer and spring washer, then |
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securely tightened. Torque mower blade |
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mounting bolt to |
| Figure 23. Tightening the Mower Blade for |
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1. Reinstall each mower blade with the air lifts |
| Installation |
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| A. Mower Blade Mounting Bolt |
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pointing up towards the mower deck as shown in | B. Hex Washer (44”, 50” & 54” Models Only) |
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Figure 23. Wedge a wooden block between the | C. Mower Blade Air Lift (Install With Points Up) | |||||
mower blade and the mower deck housing, and | D. 4 X 4 Wooden Block |
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secure the mower blade with the mower blade |
| E. Spring Washer |
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mounting bolt, hex washer and spring washer |
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(A, B & E, Figure 23) and torque to |
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26 | www.simplicitymfg.com www.snapper.com |