Dvorak SPIDER MINI II, Руководство по обслуживанию

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6.8 Sharpening of the blade
Check the blade geometry:
-
The blade must not be twisted, bent or deformed
- CAUTION! twisted blade must not be straightened, USE A NEW ONE
- Cutting sections of the blade must be in one level
- The blade must not have any cracks
- For high quality of cut
- Ensuring the quality cut, the distance between the plane of cutting sections and the plane of blade placing
should be in the range of 11-12 mm
Sharpening:
-
Along the blade
- Blade angle should be about 40°
Allowable blade wear
- Do not exeed 12 mm total metal removed at end of the blade
- Sharpen evenly on both sides of the blade. Make sure that each cutting edge receives an equal amount of
grinding to prevent having an unbalanced bar, which will cause excessive vibration at high speeds and may
damage the mower
- Ensure blades are balanced after sharpening
- If the blade is out of balance, remove metal on the heavy and by grinding, until blade is balanced
Blade placing
Cutting sections
Sharpen here
12
125
12