Ariens Razor 911373 Operator's Manual page 23

Figure 25
Sharpen Blade
See Figure 26.
CAUTION: AVOID INJURY. DO
NOT sharpen blade while
attached to unit.
1. Remove mower blade. Discard blade if:
• More than 1.3 cm (1/2") of metal is
gone.
• Air lifts are eroded.
• Blade is bent or broken.
2. File or grind an equal amount of metal
from each cutting edge of blade until
sharp.
IMPORTANT: DO NOT change angle of
cutting edge or round the corner of blade.
DO NOT sharpen to this
pattern.
1
Sharpen to this pattern.
DISCARD if more than 1.3 cm (1/2").
1. Square Corner
2. Cutting Edge
3. Air Lift
4. Air Lift Erosion
3. Slide an unthreaded bolt through blade
center to check balance. Hold the bolt
level. If blade does not remain horizontal,
sharpen the heavy end until blade is
balanced. See Figure 27.
CAUTION: An unbalanced blade
causes excessive vibration and
eventual damage to unit. Balance
blade before reinstalling.
NEVER weld or straighten blade.
4. Reinstall mower blade. See Install Blade
on page 20.
EN - 19
2
2
4
3
Figure 26
Figure 27