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 housing. INTERFACE UNIT ASSEMBLY.— The interface 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. Q1. Q2. Q3. Q4. Q5. REVIEW NUMBER 1 List the components of the Linkless Ammunition Loading System (LALS). How many rounds of electrically primed, M50 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 transporter? What is the purpose of the drum loader assembly? Q6. What is the purpose of the conveyor system? Q7. What components transfer rounds from the transporter to the elements in the exit unit assembly? Q8. The drive power is transmitted from the interface unit to the drum drive assembly by the OPERATION Operation of the LALS is divided into three modes: loading/downloading the transporter; loading/ downloading aircraft gun systems; and bypass. Loading/Downloading Transporter 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 7-11. 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 handcrank 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 load unit assembly is driven by the handcrank, 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 placed in the 7-10