Gravely ZT Sport Owner's/Operator's Manual page 17

SHARPENING MOWER BLADE
CAUTION: DO NOT sharpen mower
blade while on unit. An unbalanced
mower blade will cause excessive
vibration and eventual damage to unit.
Check mower blade balance prior to
reinstalling mower blades.
NEVER weld or straighten mower
blades.
1. Remove mower blade from unit (see
Mower Blade Replacement on page 16).
Gravely recommends having mower blades
sharpened by a professional. Contact your
Gravely dealer.
Discard mower blade if (figure 17):
• more than 1/2 in. (1.27 cm) of metal is
removed.
• air lift erosion area (item 1) is eroded.
• mower blade is bent or broken.
Do not change angle of cutting edge (item 2)
or round the corner at the end of mower blade.
2. Sharpen mower blade by removing an
equal amount of material from each end
of mower blade.
3. Check mower blade balance by sliding
mower blade on an unthreaded bolt. If
blade is balanced, it should remain in a
horizontal position. If either end of mower
blade moves downward, sharpen heavy
end until mower blade is balanced
(figure 18).
4. Install mower blade on unit (see Mower
Blade Replacement on page 16).
DO NOT Sharpen to this Pattern
Sharpen to this Pattern
DISCARD if
more than
1/2 in.
(1.27 cm)
1. Air Lift Erosion
Area
Figure 17
2
1
2. Cutting Edge
Bolt
ANTISCALP ROLLER
ADJUSTMENT (915032)
IMPORTANT: Antiscalp rollers prevent lawn
scalping, DO NOT use antiscalp rollers to set
cutting height. Adjust all antiscalp rollers to
same height.
NOTE: Adjust on a level surface, with tires
inflated to correct air pressure (see
Specifications on page 24).
1. Select cutting height.
2. Adjust all antiscalp rollers (item 2) to
within 1/2 in. (1.27 cm) of ground
(figure 19).
4
3
1. Mower Deck
2. Antiscalp Roller
OA0014
GB - 17
Mower
Blade
Figure 18
3. Pin
4. Mounting
Hardware
Figure 19
OA0013
1
2
OE0040