Stihl MSE 250 C Instruction Manual page 14

English
Devices for Reducing the Risk of
Kickback Injury
STIHL recommends the use of the
STIHL Quickstop chain brake on your
chain saw with green labeled reduced
kickback bars and low kickback saw
chains.
WARNING
To reduce the risk of injury, never use a
saw if the chain brake does not function
properly. Take the saw to your local
STIHL servicing dealer. Do not use the
saw until the problem has been rectified.
STIHL Quickstop Chain Brake
STIHL has developed a chain stopping
system designed to reduce the risk of
injury in certain kickback situations. It is
called a Quickstop chain brake.
12
There are two mechanisms for activating
the chain brake if it is in a properly
maintained condition:
manual activation: If a kickback
–
occurs, the chain saw moves
upwards towards the user in a
rotating motion around the front
handle. The brake is designed to
engage if the left hand contacts the
front guard, which is the activation
lever for the brake, and pushes it
forward.
inertia activation: All STIHL chain
–
saws are equipped with an interia
Quickstop chain brake. If the
kickback impulse is strong enough,
this alone is sufficient to engage the
brake even without contacting the
front hand guard.
WARNING
Never operate your chain saw without a
front hand guard. In a kickback situation
this guard helps protect your left hand
and other parts of your body. In addition,
removal of the hand guard on a chain
saw equipped with a Quickstop chain
brake will disable the activation
mechanism of the chain brake.
WARNING
No Quickstop or other chain brake
device prevents kickback. These
devices are designed to reduce the risk
of kickback injury, if activated, in certain
kickback situations. In order for the
Quickstop to reduce the risk of kickback
injury, it must be properly maintained
and in good working order. See the
chapter of your instruction manual
entitled "Chain Brake" and the section
"Maintenance, Repair and Storing" at
the end of these Safety Precautions. In
addition, there must be enough distance
between the bar and the operator to
ensure that the Quickstop has sufficient
time to activate and stop the saw chain
before potential contact with the
operator.
WARNING
An improperly maintained chain brake
may increase the time needed to stop
the saw chain after activation, or may
not activate at all.
Low Kickback Saw Chain and Reduced
Kickback Bars
STIHL offers a variety of bars and saw
chains. STIHL reduced kickback bars
and low kickback saw chains are
MSE 250 C