![background image](http://html1.mh-extra.com/html/echo/cs-680s/cs-680s_operators-manual_4114260009.webp)
9
Machine conditions
Do not operate a chain saw that is damaged, improperly adjusted, or not completely and
securely assembled.
Do not operate the chain saw with a loose or defective silencer.
Be sure that the saw chain stops moving when the throttle control trigger is released.
Cutting
Do not operate a chain saw in a tree unless you have been specifically trained to do so.
Keep all parts of your body away from the saw chain when the engine is running.
Use extreme caution when cutting small-size brush and saplings because slender
material may catch the saw chain and be whipped toward you or pull you off balance.
Stay on the uphill side when bucking or limbing logs which might roll when cut.
When cutting a limb that is under tension, be alert for spring-back so that you will not be
struck by the limb or chain saw when the tension in the wood fibres is released.
Cutting while on a ladder is extremely dangerous because the ladder can slip and your
control of the chain saw is limited.
Working aloft should be left to professionals.
Keep both feet on the ground.
Do not work from off-the-ground positions.
Stop the engine before setting the chain saw down.
Wood practices
Operating a chain saw safely requires a chain saw in proper working order, sound
judgement, and knowledge of the methods which should be applied in each cutting
situation.
Do not let any person use your saw unless he has read this operator's manual and fully
understands its instructions.
Use your saw only to cut wood or wood products.
Do not cut solid metal, sheet metal, plastics or any non-wood materials.
Services
All chain saw service operations, other than items listed in the operator's manual
maintenance instructions, should be performed by competent service personnel.
(For example, if an improper tool is used to hold the flywheel in order to remove the clutch,
structural damage to the flywheel could occur and subsequently could cause the flywheel
to burst.)
WARNING
Do not modify a chain saw in any way.
Only attachments and parts supplied by ECHO or expressly approved by ECHO for
use with the specific ECHO chain saw models are authorized.
Although certain unauthorized attachments are useable with the ECHO powerhead,
their use may, in fact, be extremely dangerous.
CAUTION
Do not touch hot surfaces of cylinder cover and silencer after you used the chain saw.