Troubleshooting, Adjustment & Service
Sharpening the Mower Blade | A |
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CAUTION
Avoid injury! Mower blades are sharp.
| • Always wear gloves when handling the |
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| mower 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, | Figure 15. 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 | ||
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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 15) 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.
| Reproduction |
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Balancing the Mower Blades |
| orf | A | ||
CAUTION |
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Avoid injury! Keep mower blades balanced. |
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• An unbalanced mower blade can crea e |
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excessive vibration and damage the unit | r |
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cause mower blade failure. |
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| Fig re 16. 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 16. Put the mower bladeNoton 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 | ith r |
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end of the mower blade moves downward, |
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sharpen the heavy end until the mower blade is |
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balanced. See Sharpening the Mower Blades 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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Reinstalling the Mower Blades
D
1.Reinstall each mower blade with the air lifts pointing up towards the mower deck as shown in Figure 17. Wedge a wooden block between the mower blade and the mower deck housing, and secure the mower blade with the mower blade
mounting bolt and flat washer (A & B, Figure 31) | Figure 17. Tightening the Mower Blade for |
and torque to 70 ft. lbs (94 Nm). | Installation |
| A. Mower Blade Mounting Bolt |
| B. Flat Washer |
| C. Mower Blade Air Lift (Points Up For |
| Installation) |
| D. 4 X 4 Wooden Block |
26 | www.ferrisindustries.com |