11
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.
•
Place blade bell support on blade. Make sure the
notches on the blade bell support are aligned with
the small holes in the blade. See Figure 11.
•
Replace hex bolt. Tighten to recommended torque.
Blade Torque: 450 in. lbs. min., 600 in. lbs. max
.
•
To ensure safe operation of mower, check all nuts
and bolts periodically for correct torque.
Cutting Deck
•
The underside of the mower deck should be
cleaned after each use to prevent a build-up of
grass clippings, leaves, dirt or other matter. If this
debris is allowed to accumulate, it will invite rust
and corrosion, and may prevent proper mulching.
•
The deck may be cleaned by tilting the mower and
scraping clean with a suitable tool (make certain the
spark plug wire is disconnected).
NOTE:
We do not recommend the use of pressure
washers or garden hose to clean your unit. It may
cause damage to electric components, spindles,
pulleys, bearings or the engine. The use of water will
shorten life and reduce serviceability of the equipment.
Engine
•
Refer to the engine manual for all engine
maintenance instructions.
•
Maintain engine oil as instructed in the engine
manual.
•
Service air cleaner every 25 hours of operation
under normal conditions. Clean every few hours
under extremely dusty conditions. Poor engine
Lubricate
Lubricate
Bearings
Blade
Hex Bolt
Blade Bell Support
Adapter
