21 CS-450
Chain brake function
When the lever is pushed forward, chain brake
instantly stops the chain.
Chain brake unlock
When the lever is fully pulled, toward the
operator, brake is unlocked.
Kickback
Kickback motion CHAIN BRAKE OPERATION
• Set the lever in the unlocked position before
starting to cut.
• If the brake is tripped by kickback reaction, the
chain will stop immediately. Release the throt-
tle to avoid possible damage to the engine or
clutch.
• Do not attempt to operate the engine with the
brake locked.
TESTING THE BRAKE
• Start the engine on a solid level surface and run
at a fast idle until warm.
• Hold the saw rmly by the handles and acceler-
ate the engine to a fast idle.
• Slowly operate the chain brake lever while hold-
ing the saw rmly on the ground.
When the brake lever trips, the chain should
stop.
Immediately release the throttle trigger.
WARNING
If the chain does not stop immediately,
returnthesawtoyourauthorizedECHO
dealer for repair.
NOTE
•For practice, while cutting a small tree, push
the lever forward to lock the brake.
•Conrm that the brake works properly before
each use.
•If the chain brake is clogged with wood chips,
function of the brake may deteriorate. Always
keep the device clean.
•Do not increase engine revolution while the
chain brake is locked.
•Use the chain brake only in starting or in emer-
gencies.
•When using throttle latch at starting, keep the
chain brake locked.
IMPORTANT
Do not allow the saw to tip forward in order to
avoid damage to the chain.