EXIT UNIT ASSEMBLY.The exit unit
assembly removes rounds from the transporter and
places them into the elements. Two gear-driven
sprocket assemblies are used to transfer the rounds
from the transporter to the elements. You can time the
exit unit assembly by inserting a pin through the cover,
through a hole in one of the gears, and into a hole in the
INTERFACE UNIT ASSEMBLY.The inter-
face unit assembly transfers the rounds coming from
the exit unit assembly to the aircraft system and the
spent cases coming from the aircraft system to the
elements going to the entrance unit. A bypass mode of
operation permits the rounds to be cycled through the
transporter/conveyor system without an interchange of
rounds at the interface unit. The interface unit assembly
has a gearbox drive that drives the transporter/conveyor
system at the speed required for correct hand-off
between the interface unit and the aircraft system. The
three gear-driven sprockets control the elements and
rounds as they pass through the interface unit assembly.
A resettable counter indicates the number of rounds
that have been loaded into the aircraft system.
ENTRANCE UNIT ASSEMBLY.The entrance
unit assembly removes spent cases/cleared rounds from
the elements and places them into the transporter. There
are three gear-driven sprockets that control the
elements and spent cases as they pass through the
entrance unit assembly. A counter indicates the total
number of elements that have been cycled.
DRUM DRIVE ASSEMBLY AND FLEXIBLE
DRIVE SHAFT.The drum drive assembly is
mounted on the exit end of the transporter and drives
the transporter drum. The drive power is transmitted
from the interface unit to the drum drive assembly by
the flexible drive shaft.
REVIEW NUMBER 1
List the components of the Linkless
Ammunition Loading System (LALS).
How many rounds of electrically primed
M50/PGU ammunition can be loaded on the
components of the LALS?
What weapons skid is used with the LALS?
What is the purpose of the loader ammunition
What is the purpose of the drum loader
What is the purpose of the conveyor system?
What components transfer rounds from the
transporter to the elements in the exit unit
The drive power is transmitted from the
interface unit to the drum drive assembly by
Operation of the LALS is divided into three modes:
loading/downloading the transporter, loading/ down-
loading aircraft gun systems and bypass.
Ammunition primers are exposed when you
conduct transporter loading/downloading operations.
Therefore, loading/downloading must be done in a
RADHAZ safe area.
As you read this section, refer to figure 7-17. When
you are loading the transporter, attach the timed drum
loader assembly to the timed drum entrance cover of the
transporter, and attach the timed drum unload assembly
to the timed drum exit cover. If you are simultaneously
loading/downloading, attach both the timed drum
loader assembly and drum unload assembly to the
timed drum entrance cover and to the timed drum exit
cover. When downloading only, the transporter is
driven by a hand crank in the retainer at the center of the
entrance end of the transporter. When loading or
simultaneously loading/downloading, the transporter is
driven by the load unit assembly.
Ammunition is placed in the load tray of the drum
loader at the specified ratio. The curve and tilt of the
tray lets the rounds roll freely toward the elements. As
the hand crank drives the load unit assembly, each
element picks up one round and carries it through the
ammunition chute to the load unit assembly. As the
rounds enter the ammunition chute, the rounds counter
is actuated. The load unit assembly removes the rounds
from the elements and places them in the retainer
partitions of the drum entrance cover. The scoop disk
assembly removes the rounds from the retainer
partitions and places them into the drum partitions,
where the inner drum (helix) moves them from the
entrance cover toward the exit cover. Since there is a
space in the outer drum where no controlling partitions
exist, a cam on the outer drum engages a pin on the
scoop disk assembly that closes the scoop extension.
With the scoop extension closed, no rounds can be