Mower Blades - Gravely pro-stance 36 994131 Operator's Manual

MOWER BLADES

Remove
CAUTION: AVOID INJURY. Use
sturdy gloves or padding to
protect hands when working with
mower blades.
Rotation of one blade will rotate
the other blades.
1. Stop engine, remove key and wait for
moving parts to stop and for hot parts to
cool.
2. Disconnect spark plug wires.
3. Remove hardware retaining blades and
lower spindle guards to spindle and
remove parts. Retain all parts for
reinstallation.
4. Clean all grass, dirt and debris from top
and lower spindle guards.
3
1. Mower Blade
2. Lower Spindle Guard
3. Top Spindle Guard
Figure 15
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EN - 23
Sharpen the Mower Blades
CAUTION: DO NOT sharpen
mower blades while on unit. An
unbalanced mower blade will
cause excessive vibration and
eventual damage to unit. Check
mower blade balance before
reinstalling blades.
NEVER weld or straighten bent
blades.
1. Remove mower blade from unit.
Discard mower blade if:
• More than 1.27 cm (1/2") of metal is
removed.
• Air lifts become eroded.
• Blade is bent or broken.
2. Sharpen mower blade by removing an
equal amount of material from each end
of mower blade. DO NOT change angle
of cutting edge or round corner of mower
blade.
DO NOT sharpen to this pattern.
2
Sharpen to this pattern.
DISCARD if more than 1.27 cm (1/2")
1. Cutting Edge
2. Square Corner
3. Air Lift Erosion
4. Air Lift
Figure 16
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