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5 IMPORTANT SAFETY INSTRUCTIONS
components may no longer function properly and safety
devices may be inoperative. To reduce the risk of personal
injury and property damage:
– Take the trimmer and battery to your authorized
STIHL servicing dealer to be checked before further
operation.
■ Genuine STIHL replacement parts are specifically
designed to match your trimmer and meet safety and
performance requirements. Use of parts that are not
authorized or approved by STIHL may cause serious or
fatal injury or property damage.
– STIHL recommends that only identical STIHL
replacement parts be used.
5.6 Using the Trimmer
5.6.1 Before Operation
WARNING
■ Misuse or unauthorized use may result in personal injury
and property damage.
– Use the trimmer only as described in this instruction
manual.
■ For proper assembly of the cutting attachment, deflector
and handle:
– Read and follow the instructions on mounting the
cutting attachment, deflector and handle,
12.
■ The cutting attachment and deflector must be an
approved combination. Before replacing:
– Read and follow the instructions on selecting the
proper cutting attachment and deflector,
25.1.
■ The cutting attachment must be properly installed and
tightened before starting work. Failure to use the proper
parts to mount the cutting attachment may cause the head
to fly off and seriously injure the operator or bystanders.
– Never mount a cutting attachment to the trimmer
without the proper installation of all required parts
(e.g., nuts, screws, thrust washer, thrust plate, etc.).
– Before starting work, inspect for loose parts (nuts,
screws, etc.) and for cracked or damaged heads.
– Replace damaged heads before using the power
tool.
■ Using only the approved combination of cutting
attachment and deflector is extremely important to
maximize cutting performance and reduce the risk of
personal injury from thrown objects or contact with the
cutting attachment:
– To reduce the risk of serious injury, never use wire
or metal-reinforced line or other material in place of
the recommended nylon cutting line. Pieces of wire
could break off and be thrown at high speed toward
the operator or bystanders.
■ Using a trimmer that is modified, damaged, improperly
adjusted or not completely and securely assembled can
lead to a malfunction and increase the risk of serious
personal injury or death.
– Never operate a trimmer that is modified, damaged,
improperly maintained or not completely and
securely assembled.
– Always check your trimmer for proper condition and
operation, particularly the retaining latch, trigger
switch lockout, trigger switch, deflector and cutting
attachment.
– Ensure that the retaining latch, trigger switch lockout
and trigger switch move freely and always spring
back to the stop position when released. The trigger
switch must not engage until the retaining latch is
unlocked and the trigger switch lockout is
depressed.
– Never attempt to modify or override the controls or
safety devices.
– The cutting attachment must engage only when the
battery is inserted, the retaining latch is unlocked
and the trigger switch lockout and trigger switch are
depressed.
– If your trimmer or any part is damaged or does not
function properly, take it to your authorized STIHL
servicing dealer. Do not use the trimmer until the
problem has been corrected.