Cessna 402C - Page 84

SECTION 4
NORMAL PROCEDURES
TAXIING
(AMPLIFIED PROCEDURES)
Cc~ 402C
MODEL
1. Throttles - AS REQUIRED.
2. Brakes - CHECK.
3. Flight Instruments - CHECK.
A steerable nosewheel, interconnected with the rudder system, provides
I positive control up to 18° left or right, and free turning from 18° to 52°
for sharp turns during taxi ing. Nonnal steering may be aided through use
of differential power and differential braking on the main wheels. These
aids are listed in the preferred order of use. Do not use excessive brake
on the inboard side to effect a turning radius as decreased tire life will
result.
_-------NOTE---------,
If the airplane is parked with the nosewheel cas-
tered in either direction, initial taxiing should be
done with caution. To straighten the nosewheel, use
full opposite rudder and differential power instead
of di fferent ia1 braki ng. After a few feet of for-
ward travel, the nosewheel will steer normally.
When taxi ing near buil di ngs or other stationary objects, observe the
Iminimum turning distance limits as stated in Figure 7-11. No abnormal pre-
cautions are required when taxiing in conditions of high winds.
At some time early in the taxi run, the brakes should be checked for any
unusual
reaction, such as uneven braking. The operation of the turn-and-
bank indicator and directional gyro should also be checked during taxiing.
When turning right, the turn-and-bank needle should deflect right while the
ball goes left and directional gyro heading increases in numerical value.
In a left turn the converse is true. At this time the artificial horizon
should
be up to speed and indicating a level attitude.
Most of the engine wann-up should be
enough power to keep the ai rp lane movi ng.
1000 RPM while the oil is cold.
done during taxi ing, with just
Engine speed should not exceed
Do not operate engines at high RPM when taxiing over gravel or loose
material
that may cause damage to the propeller blades.
BEFORE TAKEOFF
1. Brakes - SET.
2. Engine Runup:
a. Throttles - 1700 RPM.
b. land R HYD FLOW lights - OFF. -~
c. Alternators - CHECK.
d. Vacuum System - CHECK 4.75 to 5.25 inches Hg.
e. Magnetos - CHECK 150 RPM maximum drop with a maximum differen-
tial of 50 RPM.
4-14
1 November 1979
Revision 2 - 3 Auq 1981