In Plant

Ashok Leyland logo. From 18 seater to 82 seater double-decker buses, from 7.5 tonne to 49 tonne in haulage vehicles, from numerous special application vehicles to diesel engines for industrial, marine and genset applications, Ashok Leyland offers a wide range of products. Eight out of ten metro state transport buses in India are from Ashok Leyland. With over 60 million passengers a day, Ashok Leyland buses carry more people than the entire Indian rail network. The origin of Ashok Leyland can be traced to the urge for selfreliance, felt by independent India. Pandit Jawaharlal Nehru, India's first Prime Minister persuaded Mr. Raghunandan Saran, an industrialist, to enter automotive manufacture. In 1948, Ashok Motors was set up in what was then Madras, for the assembly of Austin Cars. The Company's destiny and name changed soon with equity participation by British Leyland and Ashok Leyland commenced manufacture of commercial vehicles in 1955. Since then Ashok Leyland has been a major presence in India's commercial vehicle industry with a tradition of technological leadership, achieved through tie-ups with international technology leaders and through vigorous in-house R&D. Access to international technology enabled the Company to set a tradition to be first with technology. Be it full air brakes, power steering or rear engine busses, Ashok Leyland pioneered all these concepts. Responding to the operating conditions and practices in the country, the Company made its vehicles strong, overengineering them with extra metallic muscles. "DESIGNING

DURABLE PRODUCTS THAT MAKE ECONOMIC SENSE TO THE CONSUMER, USING APPROPRIATE

TECHNOLOGY", became the design philosophy of the Company, which in turn has moulded consumer attitudes and the brand personality. Ashok Leyland vehicles have built a reputation for reliability and ruggedness. The 5,00,000 vehicles we have put on the roads have considerably eased the additional pressure placed on road transportation in independent India.

CHASSIS ASSEMBLY In stage 1 the frame is placed on the specially laydown model. The brake chamber is fitted to the frame after it is laid down. Then stearing gear is fitted to the front portion of the frame. The fuel tank, used for storing fuel is placed after stearing gear. It is then followed by silencers, air tank which stores air for the complete operation of the vehicle.Then number marking is done on the frame and then engine is mounted upon the engine mounter which

is a C shaped one. It is then followed by air piping and exhaust pipes which leaves off gases to the atmosphere. The front portion consists of radiator which is used to cool off the engine. Then tyre is mounted on the particular mountings followed by lubrication . Then bumper is placed before the axles to avoid any accidental hit offs.

Shop IV FRONT AXLE ASSEMBLY Front axle assembly enables the vehicle to move in straight line and to turn left or right.

ASSEMBLY The axle beam is connected to the two axle arms or sub axle. Crack card or crack card lever are connected under the steering. The brake shoe or brake carrier is provided with a brake drum on which asbestos material is placed. The asbestos material is to

provide frictional torque. This enables the whole setup to come to still when the brake is applied. The hub is provided wheel mounting attached to the brake drum. The brake drum and the hub are connected with 0.5 to 1mm gap. The cylinder is provided with compressed air connected to the brake drum and hub. When the brake is applied the diaphragm setup is moved which is connected to the shaft which in turn connected to the hub controls the wheel movement. The pressure of about 4.5bar is given to the brake chamber. The brake chamber is connected to all four wheels.

REAR AXLE ASSEMBLY Connects the rear wheels together on a rear wheel drive car. The rear axle carries the weight of the rear of the vehicle and also drives the rear wheels. It also acts as a mounting point for the springs and shock absorbers. There will be a large bulge in the center, which is the "differential" or gear housing.