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Figure 22
1. Wear line
5.
Ensure that each blade bolt is torqued to 45 N∙m
(33.2 ft-lb).
6.
Grip each blade and ensure that there is not
more than a total of 3 mm (1/8 inch) of free
movement in either direction from the rotor. If
there is more than a total of 3 mm (1/8 inch) of
free movement, replace the blade.
7.
Check each pair of opposite blades for a weight
difference between them.
Note:
Each pair of opposite blades should not
have a weight difference of more than 10 g (0.4
oz).
DANGER
A worn or damaged blade can break, and a
piece of the blade could be thrown toward you
or bystanders, resulting in serious personal
injury or death.
• Inspect the blades periodically for wear or
damage.
• Replace a worn or damaged blade.
Operating Tips
Fast Throttle Setting/Ground
Speed
To maintain enough power for the machine and the
cutting unit while mowing, operate the engine at the
fast throttle position and adjust your ground speed for
the conditions. Decrease the ground speed as the
load on the cutting unit increases. Increase the ground
speed as the load on the cutting unit decreases.
Mowing Direction
Alternate mowing direction to avoid making ruts in
the turf over time. This also helps disperse clippings
which enhances decomposition and fertilization.
Cutting Speed
To improve cut quality, use a slower ground speed.
Avoid Cutting Too Low
If the cutting width of the cutting unit is wider than the
mower you previously used, raise the cutting height to
ensure that uneven turf is not cut too short.
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Select the Proper Height-of-Cut
Setting to Suit Conditions
Remove approximately 1 inch (25 mm) or no
more than 1/3 of the grass blade when cutting. In
exceptionally lush and dense grass, you may have
to slow down the forward speed and/or raise the
height-of-cut to the next higher setting.
Long Grass
If the grass is ever allowed to grow slightly longer than
normal, or if it contains a high degree of moisture,
raise the cutting height higher than the usual setting
and cut the grass. Then, cut the grass again using
the lower, normal setting.
Keep the Cutting Unit Clean
Clean clippings and dirt from the underside of the
cutting unit after each use. If grass and dirt build up
inside the cutting unit, cutting quality will eventually
become unsatisfactory.
To reduce the risk of fire hazard, keep the engine,
muffler, battery compartment, parking brake, cutting
unit, and fuel storage compartment free of grass,
leaves, or excessive grease. Clean up any spilled oil
or fuel.
Blade Maintenance
•
Maintain sharp blades throughout the cutting
season; a sharp blade cuts cleanly without tearing
or shredding the grass blades. Tearing and
shredding turns grass brown at the edges, which
slows growth and increases the chance of disease.
•
Check the blades daily for sharpness and for
any wear or damage. Sharpen the blades as
necessary.
•
If a blade is damaged or worn, replace it
immediately with a genuine the manufacturer
replacement blade. Refer to
(page
29).
19
Replacing the Blades
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