Yard-Man 589 사용자 설명서

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leaves, dirt, or other matter. If this debris is allowed to 
accumulate, it will invite rust and corrosion, and may 
prevent proper mulching, discharge, or bagging.  The 
deck may be cleaned by tilting the mower and scraping 
clean with a suitable tool (make certain the spark plug 
wire is disconnected).
IMPORTANT:
 We do not recommend the use of a 
pressure washer or garden hose to clean your unit. The 
use of water will result in shorter life and less 
serviceability.
Cutting Blade 
When removing the cutting blade for sharpening or 
replacement, protect your hands with a pair of 
heavy gloves or use a heavy rag to hold the blade.
Remove the bolt and the blade bell support which 
hold the blade and the blade adapter to the engine 
crankshaft. See Figure 13.
Remove the blade and the adapter from the 
crankshaft.
Figure 13
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. 
WARNING: 
An unbalanced blade will
cause excessive vibration when rotating at
high speeds. It 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 
when testing for balance. 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.
Be sure to install the blade with the side marked 
“Bottom” (or with part number) facing the ground 
when the mower is in the operating position.
Slide the blade adapter onto the engine crankshaft.
Place the blade on the adapter.The blade has to be 
aligned and seated on the blade adapter flanges.
Place blade bell support on blade. Make sure the 
notches on the blade bell support are aligned with 
small holes in the blade.
Replace hex bolt and tighten hex bolt to torque: 450 
in. lbs. min., 600 in. lbs. max.
NOTE:  To ensure safe operation, the blade bolt must
be checked periodically for correct torque.
Lubrication
Always stop engine and disconnect spark 
plug wire before cleaning, lubricating or 
doing any kind of service work on the lawn 
mower.
Blade Control 
Lubricate the pivot points on the blade control handle at 
least once a season with light oil. The blade control 
must operate freely in both directions.
Wheels 
Lubricate the wheels at least once a season with light 
oil (or motor oil). If the wheels are removed for any 
reason, lubricate the surface of the axle bolt and inner 
surface of the wheel with light oil. 
Chute Deflector 
Lubricate the torsion springs and pivot points on chute 
deflector using light oil. This will insure the deflector, 
which is a safety device, can always work properly. 
Engine
Follow the engine manual for lubrication instructions.
Replacing Rear Flap 
To remove rear flap, cut off the flat end of the wire 
rod which secures it to the deck. See Figure 14. 
Attach the new flap and new rod to deck, bending 
the ends of the new rod over to secure to deck.
Figure 14
Blade
Hex Bolt
Blade Bell
 Adapter
 Support
Handle
Bracket
Handle
Bracket
Rear Discharge 
Door
Rear 
Wi
re 
Ro
d
Flap