Yard-Man YM90BC Operator's Manual page 11

Cutting Blade Operating T ips
Toestablish a rhythmic cutting procedure:
• Plant feetfirmly, comfortably apart.
• Bring theengine t ofullthrottle b efore entering thematerial to
becut. A tfullthrottle t heblade hasmaximum c utting power
andisless likely tobind, s tall o rcause blade thrust ( which
can result in serious personal injury to the operator or others).
WARNING: Blade thrust may occur when the
spinning blade contacts an object that it does not
immediately cut. Blade thrust can be violent enough
to cause the unit and/or operator to be propelled in
any direction, and possibly lose control of the unit.
Blade thrust can occur without warning if the blade
snags, stalls or binds. This is more likely to occur in
areas where it is difficult to see the material being cut.
Cut while swinging the upper part of your body from left to right.
• Always release the throttle trigger and allow the engine to
return to idle speed when not cutting.
I_ WARNING: Thebladecontinuestospinafterthe I
engine is turned off. The coasting blade can
seriously cut you if accidentally touched.
• When you are finished, always unsnap the unit from the
harness before taking off the harness.
• Swing the unit in the opposite direction as the blade spins,
which increases the cutting action.
• After the return swing, move forward to the next area to be
cut plant your feet again.
• The cutting blade is designed with a second cutting edge.
You can use it by removing the blade, turning it upside down,
and reinstalling it.
WARNING: Do not sharpen the cutting blade.
Sharpening the blade can cause the blade tip to break
off while in use. This can result in severe personal
injury to yourself or others. Replace the blade.
To reduce the chance of material wrapping around the blade,
follow these steps:
• Cut at full throttle
• Swing the unit into material to be cut from your left to your
right (Fig. 26)
Fig. 26
• Avoid the material just cut as you make the return swing
WARNING: Do not clear away any cut material
with the engine running or blade turning. To avoid
serious personal injury, turn off the engine. Allow
the blade to stop before removing materials
wrapped around the blade shaft.
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