Cable Cutter Arming Device. The arming device
consists of an electrical wiring harness with electrical
connectors at either end. This device is used to arm the
cable cutter during hoisting operations. A connector at
one end of the device couples with the threaded recep-
tacle in the cable cutter; the connector at the other end
of the device plugs into a receptacle above the utility
hatch and is labeled CABLE CUTTER.
Extension Cord. A 15-foot extension cord is pro-
vided to allow mobility of the winch or hoist operator.
Electrical connectors at each end of the cord connect
with receptacles in the winch control grip and in the hoist
control panel. This cord is the only means of plugging in
power to the switches on the control grip.
Safety Harness. A safety harness is provided for
the hoist operator in operations involving the use of the
rescue hatch. The harness permits complete freedom of
movement while affording a measure of safety in pre-
venting the wearer from falling through the door opening.
The safety harness is attached to a fitting on the wall of
the cargo compartment near the hoist control panel or a
floor tiedown fitting.
4-3-5. Hoisting System.
The hoisting system (fig. 4-3-9) is used for air rescue and
for aerial loading of smaller general cargo through the
utility hatch. The hoisting system differs from the winch-
ing system only in the manner in which the cable is
reeved and the mode selected at the winch. Hoisting
operations require the winch cable to be reeved over-
head and the hoist load capacity to be limited to a maxi-
mum of 600 pounds. The winch cable hook is used for
hoisting operations together with the cable cutter which
provides for quick release of the paid out cable and hook
in event of emergency. On those aircraft provided with
pulley block assemblies having pins as shown in (fig.
4-3-9 Sheet 1 of 2), the following instruments apply:
When the hoisting system is reeved as shown in (fig.
4-3-9 Sheet 2 of 2), the pins and their retaining hardware
are to be installed only if the cable makes a wrap angle
of 180_ or more around the pulley. When not in use, the
pins and their retaining hardware are to be stowed in the
container provided for hoist accessories.
To prevent dangerous electrical shock to
personnel being hoisted, the cable must
touch the ground or water prior to contact-
4-3-6. Static Line Retriever.
A static line retriever is provided with the static line an-
chor cable (fig. 4-3-11). The retriever is used to haul static
lines into the helicopter at the completion of a paradrop
mission and can also be used to haul in a paratrooper
hung up on a static line. The static line anchor cable and
retriever are installed and operated as follows:
Install the anchor cable between sta 120 and
Do not allow the cable to sag more than 6
Plug the cable cutter into the auxiliary control
panel at sta 95 and move the speed selector on the winch
Plug the winch control grip into the power recep-
tacle at sta 502 on the left side.
Reeve the winch cable through a pulley attached
to a 5,000-pound tiedown fitting at sta 140, buttline 20 left
and then through another pulley attached at sta 120.
buttline 18 left (fig. 4-3-11).
Reel out enough cable to allow the cable to rest
on the floor and out of the way of personnel. Attach quick-
disconnect and cover guard to the winch cable.
When the static lines are ready to be retrieved,
reel out additional cable and attach the retriever to the
winch cable. Reel in sufficient cable; then disconnect the
static lines from the anchor cable.
4-3-7. Triple Cargo Hook System.
Three external cargo hooks are provided for attaching
external cargo. The hooks can be used with a single load
on one hook, two hooks in tandem (forward and aft
hooks), or individual loads on three hooks. The tandem
hook configuration provides improved load stability at
higher airspeeds. With the triple hook system, up to three
loads can be deposited at different locations during a
single mission. The forward hook is at sta 249. The cen-
ter hook is at sta 331. The aft hook is at sta 409.
All hooks have normal release modes, emergency re-
lease modes, and manual release modes. Normal re-
lease mode can be controlled by both pilots or by the
hoist operator. Emergency release of all hooks can be
performed electrically by either pilot or manually by the
Do not lift or rotate the center cargo hook
into the cabin area or allow the mid hook
to lay on the cargo floor or access door
panel during inspection or use. The exces-
sive tension placed on the triple emergen-
cy release cable housing assembly may
partially dislodge the housing and engage
or activate the forward and aft hook emer-
gency release mechanism. This may
cause an inadvertent release of loaded
forward and aft hook assemblies in flight.
4-3-8. Center Cargo Hook.
The position of the center cargo hook is such that the load
is suspended beneath the CG of the helicopter at sta 331.