Lockheed C-5M, Техническое руководство

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Before external power is applied to the airplane, APU battery must have a charge of no less than 22.5 volts. If
voltage is less than 22.5 volts, replace battery in accordance with TO 1C-5M-2-7-1, Chapter 3. Failure to comply
could result in damage to equipment or airplane.
j. Rotate VOLT SEL switch (3) to APU BATT. A reading of 22.5 volts or higher should be indicated on voltmeter.
k. Rotate VOLT SEL switch on DC system control panel to RTRU 2 to prevent discharging batteries.
l. Place ACFT BATT switch (11) and APU BATTERY CHARGER switch (1) to OFF.
m. Place all ground disconnect switches to open (up) position. (See Figure 1-21.)
Ensure that red guards on fuel JETTISON switches are down prior to connecting external power. Failure to
comply could result in injury to personnel and damage to airplane.
n. Ensure that the two fuel JETTISON switches (Figure 1-24, 1) on the
À
ight engineer fuel management panel are in OFF
and that the two red guards are down.
o. On the forward overhead panel, ensure that the following switches are in OFF (Figure 1-22):
(1) Three WINDSHIELD HEAT switches (3)
(2) The two ANGLE OF ATTACK DE-ICE switches (4)
(3) The two PITOT HEAT switches (2)
p. On INTERIOR LIGHTS panel, place MASTER lighting switch to NORM.
q. On PILOT PANEL LIGHTS panel, place INSTRUMENTS lighting control to full counterclockwise position (OFF).
Ensure the following circuit breakers are open before connecting external electrical power. Some of these circuit
breakers are painted yellow to alert maintenance personnel that these circuit breakers are normally opened. Failure
to comply could result in damage to equipment or the airplane.
r. Ensure that the following circuit breakers (Figure 1-21) are open:
(1) Pilot Emergency, EMERGENCY DC BUS
•
SAI
•
ADU
(2) Flight Engineer Panel No. 2, ISOLATED DC BUS
•
LANDING GEAR POS IND
•
LANDING GEAR WARN LT
•
LANDING GEAR WARN HORN
TO 1C-5M-2-1
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