20
English / USA
MS 191 T
!Warning!
Be extremely cautious when cutting
limbs under tension (spring poles). The
limbs could spring back toward the
operator and cause loss of control of the
saw and severe or fatal injury to the
operator. Only properly trained
professionals should work in an area
where the trees and limbs are tangled.
Working in blowdown areas is extremely
hazardous.
MAINTENANCE, REPAIR AND
STORAGE
Maintenance, replacement, or repair
of the emission control devices and
systems may be performed by any
nonroad engine repair establishment
or individual. However if you claim
warranty for a component which has
not been serviced or maintained
properly or if nonapproved
replacement parts were used, STIHL
may deny warranty.
Never operate a chainsaw that is
damaged, improperly adjusted or not
completely or securely assembled.
Follow the maintenance and repair
instructions in the appropriate section of
your owner's manual, especially those in
the chapters “Mounting the bar and
chain”, “Maintaining and Sharpening”,
and “Chain Brake”.
Only parts supplied or approved by
STIHL for the specific model are
authorided.
Although other parts may fit, their use, in
fact, may be extremely dangerous.
!Warning!
Always stop the engine and ensure that
the chain is stopped before making any
adjustments, maintenance or repair
work, changing the saw chain or
cleaning the saw. Do not attempt any
maintenance or repair work not
described in your owner's manual. Have
such work performed at your STIHL
service dealer only.
!Warning!
Never test the ignition system with
ignition wire connector removed from
spark plug or with unseated spark plug,
since uncontained sparking may cause
a fire.
!Warning!
To reduce the risk of fire and burn injury,
use only spark plugs authorized by
STIHL. Always press spark plug boot
snugly onto spark plug terminal of the
proper size. (Note: If terminal has
detachable SAE adapter nut, it must be
attached.) A loose connection between
spark plug terminal and ignition wire
connector in the boot may create arcing
that could ignite combustible fumes and
cause a fire. Keep the spark plug clean,
and make sure the ignition lead is in
good condition.
