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Old 09-15-2017, 10:25 AM
RN7 RN7 is offline
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Olefin I'm not questioning what you did at BAE or the manufacturing capabilities of York, but I am trying to figure out what JLG's assembly capabilities are at McConnellsburg.

The reason for this is that JLG designs and builds aerial work platforms, telehandlers and stock piling lifts. It is not a vehicle manufacturer or does it have a history of vehicle manufacturing, or is it even a custom vehicle maker in the traditional sense of the word.

You state that JLG fully assembled the M-ATV at McConnellsburg, and in particular the cab (capsule). But were all the component parts already built before they were shipped for assembly or were they built at McConnellsburg?

Assembling a vehicle is a very complicated and costly process, and involves major investment by the manufacturer into an assembly plant including robotic automation.

On automobile assembly lines much of the work is now done by robots rather than humans. In the first stages of automobile manufacture, robots weld the floor pan pieces together and assist workers in placing components such as the suspension onto the chassis. Worker attaches the radiator, and another bolts it into place. Because of the nature of these heavy component parts, articulating robots perform all of the lift and carry operations while assemblers using pneumatic wrenches to bolt component pieces in place

Assembly plants represents only the final phase in the process of manufacturing a vehicle, as all of the thousands of different components supplied by outside suppliers and company-owned parts suppliers are brought together for assembly. Once the component parts are assembled production control specialists track and assign them using vehicle identification numbers, or in some cases a small radio frequency transponder is attached to the chassis and floor pan.

The typical vehicle is constructed from the ground up. The frame forms the base on which the body rests and from which all subsequent assembly components follow. The frame is placed on the assembly line and clamped to the conveyer to prevent shifting as it moves down the line. From here the automobile frame is moved to component assembly areas where complete front and rear suspensions, gas tanks, rear axles and drive shafts, gear boxes, steering box components, wheel drums, and braking systems are installed.

The vehicle's engine is then mated with its transmission, and robotic arms are used to install heavy components inside the engine compartment of the frame.

The floor pan is the largest body component to which a panels and braces will be welded or bolted. As it moves down the assembly line the shell of the vehicle is built. The left and right quarter panels are robotically disengaged from pre-staged shipping containers and placed onto the floor pan, where they are stabilized with positioning fixtures and welded. The front and rear door pillars, roof, and body side panels are assembled in the same fashion. The shell of the automobile assembled in this section of the process lends itself to the use of robots because articulating arms can easily introduce various component braces and panels to the floor pan and perform a high number of weld operations in a time frame and with a degree of accuracy no human workers could ever approach.

The body is built up on a separate assembly line from the chassis. Robots once again perform most of the welding on the various panels, but human workers are necessary to bolt the parts together. Once the body shell is complete, it is attached to an overhead conveyor for the painting process. The multi-step painting process entails inspection, cleaning, undercoat dipping, drying, topcoat spraying, and baking.

Prior to painting, the body must pass through a rigorous inspection process. As the shell exits the cleaning station it goes through more drying, cleaning and painting processes.

The body and chassis assemblies are then mated near the end of the production process. Robotic arms lift the body shell onto the chassis frame, where human workers then bolt the two together. After final components are installed, the vehicle is driven off the assembly line to a quality checkpoint.

This is standard procedure at every major vehicle assembly plant in the world, and the heavier the type of vehicle being built will mean more automation. The fact that we are talking about military vehicles will mean more specification. Obviously some work on military vehicles can only be done by technicians, but component parts still have to be built before they are assembled. If Oshkosh had a contract to build millions or even hundreds of thousands of M-ATV's I could see Oshkosh investing hundreds of millions in developing and expanding JLG's manufacturing and assembling capabilities at McConnellsburg. But less than 10,000 M-ATV's were built, and only a minority of them by JLG.

I'm still finding it hard to list JLG as a major assembly plant.
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