Cessna T188C - Page 345

MODEL 188
& T188 SERIES
SERVICE
MANUAL
A clear plastic
cover provides weather protection
16-62. DESCRIPTION.
The navigation lights are
for the lamps
and is shaped
to maintain the
leading
located on each
wing tip and the
stinger. Lights
are
edge curvature
of the wing.
The landing
lamp is
controlled
by a switch
on the instrument
panel.
mounted on
the inboard side
and adjusted
to throw its
beam farther
forward than
the taxi light.
Both lights
16-63. REMOVAL
AND
INSTALLATION.
For re-
are controlled
by a
single switch.
An additional
moval
and installation
of the navigation
lights see
landing and
taxi light installation
may be installed
in figure 16-7.
the right
wing on serials
thru 188-0274.
Beginning
with
serial 188-0275
thru 18800832,
the optional
land-
16-64. ANTI-COLLISION
STROBE
LIGHTS.
Ing and taxi lights
installation
includes lights
on both
wings.
16-65. DESCRIPTION.
A white strobe light may be
Installed on each wing tip with the navigation lights.
16-57.
REMOVAL AND INSTALLATION.
(See The strobe
lights are vibration resistant
and operate
figure 16-6.)
on the principle
of a capacitor discharge into
a zenon
a. Remove the screws securing the landing light tube producing an extremely high intensity flash.
window assembly. The assembly will then be free Energy is supplied to the strobe lights from power
for removal,
supplies mounted
on each wing tip rib.
b.
Remove the
four attaching
screws from
the
bracket assembly and remove the bracket. WARNIN
NOTE
The anti collision system is a high voltage
Do not reposition the landing and taxi light device. Do not remove or touch the tube
adjustment screws. If readjustment is re- assembly while in operation. Wait at least
quired, see figure 16-6. 5 minutes after turning off power before
proceeding with any maintenance.
c. Remove the
two screws
securing the
wiring to
the lamp contacts and remove
the lamp.
16-66. OPERATIONAL REQUIREMENTS.
(Thru
d. Install new
lamp and reassembly.
18803046).
WARNING
16-58.
LANDING AND
TAXI LIGHTS
(COWL MOUNT-
ED).
The
capacitors in the strobe light
power
supplies
must
be reformed
if
not used
for"
16-59. DESCRIPTION. Beginning with aircraft a period of six (6) months. The following
serial
18800833 the
landing and
taxi lights are
mounted
procedure
must
be used.
in the lower
half of the cowl
nose cap.
The landing
light on the left
side and the taxi light on the right
Connect the power
supply, red wire to plus, black
side. Lights are solid mounted although additional to ground to 6 volt DC source. Do Not connect strobe
adjustment may be made by adding washers under tube. Turn on 6 volt supply. Note current draw after
the bracket assembly mounting screws. one minute. If less than 1 ampere, continue operation
for 24 hours. Turn off DC power source. Then con-
16-60. REMOVAL
AND INSTALLATION.
(See nect to the proper
voltage, 12/24 volt. Connect
tube to
figure
16-6, sheet
2 and 3).
output
of strobe power
supply and
allow to operate,
a. 18800833 THRU 18801040 flashing, for 15 minutes. Remove strobe tube. Oper-
1. Remove lower half of engine cowl. Then re- ating power supply at 12/24 volts, note the current
move the screws securing the wiring to the landing drain after one minute. If less than 0. 5 amperes,
and taxi lamps. operate for 6 hours. If current draw is greater than
2.
Remove tinnerman screws
(6) securing aft
0.5 amperes, reject
the unit.
bracket and remove lamp.
3. Install new lamp and reassemble.
16-67. REMOVAL AND INSTALLATION.
See
b. BEGINNING WITH
18801041
figure 16-7. for
removal and installation.
1. Remove
lower half
of engine cowl.
Then re-
move
screws securing
wiring
to the landing
and taxi
16-68.
FLASHING
BEACON.
lamps.
2. Remove
screws
(9) securing lamp
assembly
16-69. DESCRIPTION.
A flashing beacon
light may
to retainer
(2) and remove
assembly.
be installed
on the vertical
fin tip. The
flashing
3. Remove screws (10) and disassemble lamp beacon is an iodine-vapor lamp electrically switched
assembly.
by a solid-state
flasher assembly mounted in
the
4. Install
new lamp and reassemble.
tailcone. The
switching frequency of the
flasher
operates the
beacon at approximately
45
flashes per
NOTE
minute. Beginning with
aircraft serial 18801041
a
resistor is added to the system to prevent pulsing of
When
lamps are removed note
position of the
lighting when the flasher
is operating.
washers and spacers for reinstallation.
16-70. REMOVAL AND INSTALLATION. See
16-61.
NAVIGATION
LIGHTS.
figure 16-7
as a guide
for removal
and installation
of the flashing beacon.
16-41