Cessna 172R, Operating Handbook

Page: 129 / 500

CESSNA
MODEL
172R
SECTION 4
NORMAL
PROCEDURES
LEANING FOR GROUND OPERATIONS
1
.
For all ground operations, after starting the engine and when
the
engine is running smoothly:
a.
set
the throttle
to 1 200
RPM.
b.
lean the mixture for maximum RPM.
c.
set
the throttle
to
an
RPM appropriate for ground
operations (800 to 1000 RPM recommended)
NOTE
If ground operation will be
required after the BEFORE
TAKEOFF checklist is completed, lean the mixture again
(as
described
above)
until ready
for
the TAKEOFF checklist.
TAXIING
When taxiing, it is important
that speed and use
of brakes be
held
to
a
minimum and that all controls be utilized
(Refer to
Figure
4-2, Taxiing
Diagram)
to
maintain directional control and
balance.
Taxiing over loose
gravel or
cinders should be done
at low
engine speed
to
avoid abrasion and
stone damage
to
the propeller
tips.
Revision 7
4-21