Echo SRM-4300, Operator'S Manual

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10 SRM-4300
With metal blade
DANGER
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.
Svere injury can occur if a jam is removed and the cutting attachment
suddenly starts.
WARNING
• Serious injury may result from the improper use of blades.
Read and comply with all safety instructions listed in this Manual.
• The metal blade is designed especially to cut weeds and grass.
To avoid injury due to kickback or blade fracture, do not use the metal blade
to cut brush or trees.
• Use only cutting attachments recommended by ECHO.
• Pieces from a cracked metal blade can fl y 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 misuse or improper sharpening.
• Always use the blade suited for the job.
• Do not hit rocks, stones, tree stumps, and other foreign objects with the blade.
• Do not cut into the ground with the blade.
• If blade strikes an obstruction, stop engine immediately and inspect blade for
damage.
• Do not operate with a dull, bent, fractured or discoloured blade and worn or
damaged nut.
• Do not run engine at full throttle without a load.
• Remove all foreign objects from work area.
• Do not operate brushcutter without shoulder harness and shield.
Scything weeds.
This is cutting by swinging the cutting attachment in a level arc.
It can quickly clear areas of fi eld grass and weeds.
Scything should not be used to cut large, tough weeds or woody growths.
If a sapling or shrub binds the cutting attachment, do not use the cutting attachment
as a lever to free the bind, because this will cause cutting attachment failure.
Instead, shut off the engine and push the sapling or shrub to free the blades.
Do not use a cracked or damaged blade.
Reaction forces
WARNING
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.
Push.
The operator may feel the unit push toward him when he tries to cut the object on
right.
If he cannot hold the blade in the cut, a kickback may occur when the blade is pushed
out to where the teeth at the outside furthest point from the operator are cutting.
The blade will “kickback” sideways.
Pull.
The opposite of push.
When object on left, the operator may feel the unit pull away.
Although this pull type of cutting may cause sawdust to be thrown back at the
operator, it is recommended for sawing off heavy brush because the cutting is
smoother and more stable than when the unit pushes.
Kickback.
This may occur when the moving blade at the front of the blade circle contacts strong
brush or trees.
The force that occurs pushes the entire unit and blade violently away in an arc.
Kickback is a danger to a bystander and also a jolting force to the operator.
Inspect blades before use
Use correct blade
Wires can catch and fl ap
around
Scything weeds
Anticlockwise rotation
Kickback
Push
Pull