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SECTION 7: MAINTAINING YOUR LAWN MOWER
WARNING:
Be sure to disconnect and
ground the spark plug wire before performing
any repairs or maintenance.
Maintaining the Blade
•
Periodically inspect the blade adapter for cracks,
especially if you strike a foreign object. Replace
when necessary.
WARNING:
When removing the cutting
blade for sharpening or replacement, protect
hands by using heavy gloves or a rag to grasp
the cutting blade.
•
Remove the bolt and bell support which hold the
blade and adapter to the engine crankshaft. See
Figure 14 . Remove the blade and adapter from the
crankshaft.
Blade
Adapter
Blade
Figure 14
•
When sharpening the blade, follow the original
angle of grind as a guide. It is extremely important
that each cutting edge receive an equal amount of
grinding to prevent an unbalanced blade. An
unbalanced blade will cause excessive vibration
when rotating at high speeds, and may cause
damage to the mower and/or 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.
•
Before reassembling 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). Lubricating the bolt holes, bolts
and inner surface of the nuts is also recommended.
•
Install the blade adapter on the crankshaft with the
"star" away from the engine. Place the blade with
the side marked bottom (or with part number) facing
away from the adapter. Align the blade bell support
over the blade with the tabs in the holes of the
Crankshaft
Bell
Support
Hex Bolt
blade and insert the hex bolt. Tighten the hex bolt to
the torque listed here.
Blade Mounting Torque:
Center Bolt: 450 in. lbs. min., 600 in. lbs. max.
•
To ensure safe operation of your unit, all nuts and
bolts must be checked periodically for correct
tightness.
Deck Care
NOTE: We do not recommend the use of pressure
washers or garden hose to clean your unit.These may
cause damage to electric components, spindles,
pulleys, bearings or the engine. The use of water will
shorten life of the mower and reduce its serviceability.
•
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 cause an uneven
discharge of grass clippings at the next cutting.
•
The deck may be cleaned by tilting the mower and
scraping clean with a suitable tool (make certain the
spark plug wire is disconnected).
Replacing Rear Flap
•
To remove rear flap, cut off the flat end of the wire
rod which secures it to the deck. See Figure 15.
•
Attach the new flap and new rod to deck, bending
the ends of the new rod over to secure to deck.
Rear Discharge
Door
Handle
Bracket
Engine
A list of key engine maintenance jobs required for good
performance by the mower is given below. Follow the
accompanying engine manual for detailed list and
instructions.
13
Handle
Bracket
Rear
Flap
Figure 15
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