Shindaiwa C3410 Operator's Manual page 13

Kickback
The phenomenon that occurs if the trimmer blade comes into con-
tact with a tree, post, rock or other hard object while rotating at
high speed and reacts by recoiling powerfully and instantaneously
is known as kickback.
Causing kickback can result in a loss of control over the product
and is highly dangerous.
In particular, if the front-right quadrant of the trimmer blade (B)
strikes a shrub or other such object, the trimmer blade will cause
the product to recoil sharply backwards to the right.
To prevent kickback, do not trim from left to right. Be careful to en-
sure that the trimmer blade does not strike any hard objects.
When trimming, ensure that the object you are cutting meets the
portion of the blade 1/3 in from the front edge on the left-hand side
(A).
Failure to do so could cause an injury or fatal accident.
Precautions concerning the cutting attachment
Always stop the engine when a cutting attachment jam occurs. Do not attempt to remove an object causing a jam if the
engine is running. Severe injury can occur if a jam is removed and the cutting attachment suddenly starts.
1.With metal blade
Use correct blades
Serious injury may result from the improper use of blades. Read and comply with all safety instructions listed in this
manual.
Use only cutting attachments recommended by YAMABIKO CORPORATION.
The type of blade used must be matched to the type and size of material cut. An improper or dull blade can cause
serious personal injury. Blades must be sharp. Dull blades increase the chance of kick-out and injury to yourself and
bystanders.
Plastic/Nylon Grass/Weed Blades may be used where ever the nylon line head is used. Do not use this blade for
heavy weeds or brush.
The 3 cutter blade is designed especially to cut weeds and grass. To avoid injury due to kickback or blade fracture,
do not use the 3 cutter blade to cut brush or trees.
8 Tooth Weed/Grass Blade is designed for grass, garden debris and thick weeds. Do not use this blade for brush
or heavy woody growth, 19 mm diameter or larger.
80 Tooth Brush Blade is designed for cutting brush and woody growth up to 13 mm diameter.
22 Tooth Clearing Blade is designed for dense thickets and saplings up to 64 mm diameter.
Damaged or shattered blades can cause accidents and serious injury.
Inspect blade before use
Pieces from a cracked metal blade can fly off during operation. Inspect metal blades for cracks before each use. Discard
cracked blades no matter how small the crack. Cracked blades can be the result of the misuse or improper sharpening.
Damaged or shattered blades can cause accidents and serious injury.
Reaction forces
Be sure you understand the reaction forces of push and pull, and kickback described in this manual, and how these
forces may affect your balance in the operation of a unit.
Failure to do so could cause an injury or fatal accident.
For safe use of your product
WARNING
DANGER
WARNING
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