Gravely ZT 34 Operator's Manual page 26

REPLACING MOWER BLADE
Remove
(Figure 15)
CAUTION: Mower blades are
sharp and can cut you. Wrap the
blades or wear gloves and use
extra caution when servicing
them.
1. Block mower blades to prevent rotation.
2. Remove mounting hardware and mower
blades from spindles.
Install
(Figure 15)
1. Install mower blades on spindles with
mounting hardware.
2. Torque 5/8" nut to 136 N•m to 163 N•m
(100 lb-ft – 120 lb-ft).
1
1. Spindle
2. Blade
3. Washer
4. 5/8" Nut
Figure 15
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
Gravely recommends having mower blades
sharpened by a professional. Contact your
Gravely dealer.
Discard mower blade if (Figure 16):
•
•
•
Do not change angle of cutting edge or round
the corner at the end of mower blade.
2. Sharpen mower blade by removing an
3. Check mower blade balance by sliding
2
4. Install mower blade on unit. See
DO NOT sharpen to this pattern.
3
Sharpen to this pattern.
4
Discard if
more than
1.3 cm
(1/2")
1. Air Lift Erosion
2. Cutting Edge
EN - 26
Replacing Mower Blade on page 26.
more than 1.3 cm (1/2") of metal is
removed.
the air lift erosion area is eroded.
the mower blade is bent or broken.
equal amount of material from each end
of mower blade.
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
the heavy end until mower blade is
balanced.
Replacing Mower Blade on page 26.
1
Figure 16
2