Hydraulics Case Study

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HOW JCB MACHINE WORKS

The Basic Idea of Hydraulics:

The basic idea behind any hydraulic system is very simple. Force that is applied at one point is transmitted to another point using an incompressible fluid. The fluid is almost always an oil of some sort. The force is almost always multiplied in the process.
If two pistons fit into two glass cylinders fitted with oil and connected to one another with an oil-filled pipe. If you apply a downward force to one piston(suppose the left one), then the force is transmitted to the second piston through the oil in the pipe. Since oil is incompressible, the efficiency is very good – almost all the applied force appears at the second piston. The great thing about hydraulic systems is that the pipe connecting
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gear assy. Parts, rear axle assy. Parts and engine etc) are brought in the logistics area. These parts are given by different vendors set by the company.
• Metal sheets from which main frames, rear frames, boomers/dippers are to be welded are moved to the fabricated shop.
• Engines are moved to skid sub assembly line and the gears & rear-axle parts are moved to transmission line.
Fabrication shop:
• In fabrication shop, welding of different parts of (3DX backhoe loader), the product which is made are done and after that their machining, finishing, surface smoothening etc are done. After machining parts are moved to the paint shop.
Paint shop:
• In paint shop, all the component parts are moved and painted, then the painted parts are moved to main frame assembly
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• The line has 10 zones, for each certain workload is divided. In this line all the assembling of the main frame is done. Then this assembled main frame is moved to the backhoe assembly line with the help of cranes & EMS system.
Backhoe Assembly Line ( A-Line):

• At the backhoe assembly line, skid is dropped from the skid sub assembly line.

Skid Sub-Assembly line: Assembled gear box & rear axle from transmission line are moved to skid sub-assy. line. Here, the engine is connected to the gear box & rear axle. Thus (skid = Engine + rear axle + gear box).
• The main frame is then dropped on this skid and then after the process to process assy. of backhoe starts.
• The main assembly line (A-line) has 22 zones for each zone certain workload is divided, just like main frame assembly line.
• The assembles Backhoe is then moved over to twin-slat line.

Twin-Slat Line:
At twin-slat line firstly booms & dippers coming from the Boom/Dipper sub-assembly line is attached to the machine and then the different oil filling process in the machine is

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