Textron Lycoming IO-540 Series - Page 13

TEXTRON
LYCOMIING
OPERATOR'S
MANUAL
WARNING
These
engines
are
equipped
with
a dynamic
counterweight
system
and
must
be operated
accordingly;
avoid
high
engine
speed,
low manifold
pressure
operation.
Use a smooth,
steady movement
of the
throttle
(avoid
rapid
opening
and
closing).
If this
warning
is not
heeded,
there
could be
severe
damage
to the
counterweights,
roller
and
bushings.