Learjet 60 - Cockpit Lighting; Instrument Lights; Instrument Panel Floodlights

Learjet 60

Pilot's Manual
COCKPIT LIGHTING
INSTRUMENT PANEL FLOODLIGHTS
Three cold-cathode, fluorescent
lights are installed in the glareshield
assembly to provide flood illumination
of the instrument panel . Elec-
trical power to operate the lights is 600
VAC supplied through two
power supply units . The lights are
controlled and dimmed through
the FLOOD rheostat switch on the pilot's
switch panel . Electrical
power to the power supply units is 28 VDC
supplied through the 7 .5-
amp FLOOD LTS circuit breaker on the pilot's
circuit breaker panel .
Instrument panel
floodlights are operative during EMER BUS
mode .
INSTRUMENT LIGHTS
Incandescent
lighting is installed for the pilot's
indicators, copilot's in-
dicators, center
instrument panel indicators,
pedestal indicators, and
magnetic compass
. The lights are powered
by variable voltage (0 - 5
VDC)
current supplied by five power supply
units . Electrical power
to
the power supply units is 28 VDC
supplied through the 5-amp
L
and R INSTR LTS circuit breakers
and the 7 .5-amp CENTER
PANEL-
PED LTS circuit breaker on
the pilot's and copilot's
circuit breaker
panels . The lights are controlled
and dimmed by the
INSTR and CEN-
TER PNL/PEDESTAL
rheostat switches on the pilot's
switch panel
and the INSTR rheostat
switch on the copilot's switch
panel .
Pilot's INSTR dimmer
switch : The pilot's
INSTR dimmer switch
pro-
vides variable dimming
for the following :
" L
& R Ni indicators

"
L & R ITT indicators
" L
& RN2 indicators

" L &
R Fuel Flow indicators
"
L & R ENG OIL indicators "
Pilot's angle-of-attack
indicator
" Pilot's clock

"
Oxygen pressure
indicator
" Electric power monitor
Copilot's INSTR
dimmer switch :
The copilot's INSTR
dimmer
switch provides
dimming for the following :
"
Copilot's clock

"
CAB TEMP
indicator
" TEMP
CONT indicator

"
Copilot's
angle-of-attack indicator
"
Pressurization panel

"
Cabin pressure
indicator
PM-123
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4-23
Original