Lockheed C-5M, Technical Manual

Page: 53 / 100

b. Use the following procedures to remove the personal fall protection devices and safety web strap (7) from quadrapod
attach point (1, 2):
(1) Remove lifeline lanyard snap hook (3) from safety web strap D ring (6).
(2) Remove safety web strap (7) from quadrapod truss (1, 2).
1.3.5 Performing Maintenance Using a Workstand.
Workstands designed for use on the airplane, such as the vertical
adjustable maintenance platform, provide a means for accomplishing
À
ight line maintenance and inspections. When the wing
is surrounded by work stands, for example, ISO stands, the use of personnel restraint equipment is not required. (See AFI
91- 203.) Workstands can be used to access walkways provided entry or exit are direct to the walkway without entering a
no-step zone. When using vehicle mounted and self-propelled mobile work platforms, which have manufacturer-installed
structural anchor points, with the platform elevated four (4) feet or more above the surface, personal fall arrest system shall
be worn with lanyard attached to an approved structured anchor point. When mobile work platforms have not been manu-
factured with approved structural anchor points, protective guardrails and toe boards must be installed on all open sides
except the side facing the airplane when it is within 14 inches of the work surface.
1.3.6 Grounding the Airplane.
(See Figure 1-18.) There are 14 ground receptacles on the airplane. Always connect the
static ground cable to an approved earth ground
¿
rst and then to the airplane. Airplanes being refueled or defueled should be
grounded according to instructions in Chapter 3.
1.3.7 Electrical Connectors. Observe the following when connecting or disconnecting electrical connectors.
Failure to observe the following steps when handling electrical connectors could result in damage to the connec-
tors or failure of avionic components. Microminiature connectors are especially susceptible to damage.
a. When disconnecting connectors by pulling connector straight out from receptacle, do not pull on wiring.
b. Cover disconnected connectors with plastic bag or other suitable cover to protect the pins, sockets, and bonding from
contamination by foreign matter.
c. Prior to connecting electrical connectors ensure that pins are straight.
d. Ensure that connectors are fully engaged and secured with safety wire if applicable.
1.3.7.1 Interphone External Connections. (See Figure 1-19.) Interphone connections are provided for the external use
of the airplane interphone system by maintenance personnel during maintenance or ground operations. The connections are
installed in the left and right MLG forward fairing panel at FS 1138.
1.3.8 Connecting External Electrical Power.
(See Figure 1-20.) An AC external power receptacle is installed inside a
À
ush-mounted box on lower right side of fuselage at FS 974 and WL 100. The receptacle is protected by a hinged door
which will remain open unless it is manually closed. The external power source must be capable of supplying 115/200 VAC,
3-phase, 400-Hz power. On AF68-0213 and AF68-0216, an additional external power receptacle is installed at FS 994 and
WL 100. This receptacle is to be used only to supply external power to space cargo container systems. Refer to Paragraph
1.3.12 . To connect external power to the airplane, use the following procedure.
Airplanes with the Air Defensive System (ADS), the Mode switch on the Cockpit Management Display System
(CMDS) must be set to OFF, the master safety pin must be installed, and the GROUND TEST switch must be in
NORMAL to prevent accidental
À
are dispensing. Failure to comply could result in injury to personnel or damage
to airplane.
a. For airplanes with Air Defensive System (ADS), before connecting external electrical power, ensure that Mode switch
on CMDS is OFF, master safety pin is installed, and GROUND TEST switch is in NORMAL.
TO 1C-5M-2-1
1-13