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12
SECTION 7: MAINTAINING YOUR LAWN MOWER
WARNING:
Be sure to disconnect the
spark plug wire and DE-ENERGIZE starter
before performing any repairs or
maintenance. DO NOT attempt any
maintenance or service to the engine and/or
mower equipped with the safety key in the
unlocked and/or energized mode.
WARNING:
NEVER assume starter is de-
energized, even if the key is in the locked
position and/or removed from the engine.
ALWAYS de-energize self starter prior to
performing any maintenance or service to the
engine and/or mower. Follow instructions on
the engine and/or machine to de-energize
starter.
Lubrication
Blade Control
• Lubricate the pivot points on the blade control
handle and the brake cable at least once a season
with light oil. See Figure 10. The blade control must
operate freely in both directions.
Wheels
• Lubricate the wheel bearings (if so equipped) at
least once a season with light oil (or engine oil).
Also, if the wheels are removed for any reason,
lubricate the surface of the axle bolt and the inner
surface of the wheel with light oil. See Figure 10.
Engine
• Follow engine manual for lubrication instructions.
Figure 10
WARNING:
Be sure to disconnect and
ground the spark plug wire before performing
any repairs or maintenance.
NOTE:
When tipping the unit, empty fuel tank and
keep engine spark plug side up.
Cutting Blade
WARNING:
When removing the cutting
blade for sharpening or replacement, protect
hands by using heavy gloves or a rag to grasp
the cutting blade.
To remove blade:
• Remove the bolt and blade bell support which hold
the blade and adapter to the engine crankshaft.
See Figure 11. Remove the blade and the adapter
from the crankshaft.
WARNING:
Periodically inspect the blade
adapter for cracks, especially if you strike a
foreign object. Replace when necessary.
• When sharpening the blade, follow the original
angle of grind as a guide. It is extremely important
that each cutting edge receives an equal amount of
grinding to prevent an unbalanced blade. An
unbalanced blade will cause excessive vibration
when rotating at high speeds, may damage the
mower and/or cause personal injury.
• The blade can be tested by balancing it on a round
shaft screwdriver. Remove metal from the heavy
side until it balances evenly. It is recommended that
the blade always be removed from the adapter for
the best test of balance
Figure 11
• Before reinstalling the blade and the blade adapter
to the unit, lubricate the engine crankshaft and the
inner surface of the blade adapter with light oil (or
engine oil).Also lubricate the bolt holes and bolts.
To Reinstall Blade:
• Be sure to install the blade with the side of the
blade marked “Bottom” (or with part number) facing
the ground when the mower is in the operating
position.
• Make sure the blade is aligned with and seated
onto the blade adapter flanges.
Lubricate
Lubricate Bearings
Blade
Hex Bolt
Blade Bell Support
Adapter