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Gravely Dealers will provide any service or adjustments
which may be required to keep your unit operating at
peak efficiency.
The chart below shows the recommended maintenance
schedule that should be performed on a regular basis.
More frequent service may be required due to working
conditions (heavy loads, high ambient temperatures,
dusty conditions, or airborne debris).
See engine and power unit owner’s manuals for further
maintenance and trouble shooting information.
SHARPENING MOWER BLADE
1. Remove mower blade.
IMPORTANT: Gravely recommends having mower
blades sharpened by a professional. Contact your
Gravely dealer.
Discard mower blade if (figure 8):
• more than 1/2 in. (1.27 cm) of metal is removed.
• the air lift erosion area is eroded.
• the mower blade is bent or broken.
Do not change angle of cutting edge 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 the
heavy end until mower blade is balanced.
4. Install mower blade and spacers, tighten the
locknut to 100 lbf-ft. (135 N•m) torque.
LUBRICATION
NOTE: The 30-inch mower does not require any
lubrication.
IMPORTANT: Prior to apply grease thoroughly clean all
components.
Apply grease to the lube fittings on the drive kit until it
shows at the mower shaft under the mower deck and at
the swivel adjustment (figure 9).
MAINTENANCE
WARNING: AVOID INJURY. Read and
understand the entire Safety section before
proceeding.
MAINTENANCE SCHEDULE
Service Performed
Daily
Every
40 hrs.
Yearly
Check Mower Blade •
General Lubrication
•
Check Fasteners ••
WARNING: ROTATING PARTS can cut off
body parts. Keep hands and feet away. Loose
clothing, long hair or scarves can get caught in
rotating parts and cause death or serious injury.
WARNING: Stop engine, wait for moving parts
to stop, remove key, and remove wire from
spark plug before attempting any lubrication or
maintenance procedures.
CAUTION: DO NOT touch engine parts which
are hot from operation. Allow such parts to cool
before servicing.
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. Air Lift Erosion
Area
2. Cutting Edge
Figure 8
2
1
DO NOT Sharpen to this Pattern
S
harpen to this Pattern
DISCARD if
more than 1/2
in. (1.27 cm)