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8/10/2019 Amit Training

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SUMMER TRAINING PRESENTATION

INDIAN RAILWAYS

CARRIAGE WORKSHOP MATUNGA

AMIT Y

B-TEC

V SEM


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INDIAN RAILWAY

Railways were first introduced to India in the year 1853 from MUMBAto THANE.

In 1951 the systems were nationalised as one unit, the IndiaRailways, becoming one of the largest networks in the world.

By 1875, about 95 million were invested by British companies India guaranteed railways.By 1880 the network had a route mileag

of about 14,500 km (9,000 mi), mostly radiating inward from ththree major port cities of Bombay madras and Calcutta.


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COACH REPAIR WORKSHOP MATUNGA


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ACTIVITIES TARGET

POH of Mail/Express Coach & POH of Passengers Coach 147 coaches per month including 28

AC Coaches

Heavy Corrosion Repair 14 per month

POH of EMU Coach 60 coaches

EMU Rehab-Mid-Life & EMU Rehab-

End-Life

8 Coaches per month

TOTAL CAPACITY 243 PER MONTH


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M CHIN RY ND PL NTS

The Workshop is equipped with 44 EOT Cranes, 3 Surface Traverseand 19 Air compressors, in addition to another 700 machines anmore than 10 equipments and cleaning plants.

The workshop is provided with a captive internal transport sectiowhich caters to all the material transportation needs, within an

outside the Workshop


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THE MAINTENANCE SCHEDULES AND THE OVERHAULING PERIODS

1. Trip schedule- After every trip by primary maintenance depot.

2. Schedule A - Monthly (1 month )

3. Schedule B - Quarterly (3 months )

4. IOH 9 months

5. POH 18 months

Per iodic overhaul ing is the best available process of main tenance of coaches in I ndia. T

operated after 18 months after the manufacturi ng or the previous per iodic overhaul ing d

workshop. This undergoes a huge process of li f ting the coach, isolating the all parts, and

replacing the necessary or damaged parts. I n other words this is the process of renewing


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WHEEL PROFILE

DEFECTS

Thin Flange :- When the flange thickness reduces from 28.5 mm16 mm or less, then the flange is called thin flange.

Sharp Flange :- When the radius given at the tip of flange is worn from 14.5mm to 5 mm or less is called Sharp Flange.

Thin Tyre :- If the remaining thickness of tyre is less than 25 mmcalled thin tyre.

Hollow Tyre :- If the groove on the wheel tread is up to 5 mm or

it is called Hollow tyre


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CO CH


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XLE

It is the main long cylindrical bar on which bogie are fixed with the help of beasteel as above. Each axle contains 2 wheels, the brake cylinders are also attacheLHB coaches, the braking discs are fixed on to the axle.

The axle mounted brake disc consists of a gray cast iron friction ring and acast steel hub, connected by means of radially arranged elastic resilientsleeves which are secured in the hub by means of hexagon screws. Thefriction ring is manufactured as a solid component or in a split version. In the

latter case, the two halves are held together by two tight

fit screws.


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AIR BRAKE SYSTEM The brake system in which compressed air is used in the brake cylinder fo

of brakes is called air brake system.


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WORKING PRINCIPLE The different processes involved in working :-

a) Charging

b) Application

c) Release

Under normal conditions the Brake pipe is charged with 5kg/cm2 from thereservoir and the Auxiliary reservoir are charged with 5 kg/cm2 and 6 kgfrom BP through Distributor valve.

When the brake pipe is charged at 5 kg/cm2 the brake cylinder is connthrough distributor valve in order to keep the brake in released position fully.

Whenever the brake pipe pressure is reduced below the CR pressure, theauxiliary reservoir with the brake cylinder and the air from AR is sent into theapply the brake.

Whenever the brake pipe pressure is equal to CR pressure the DV disconnec

and in turn connects the BC with Exhaust for the release of brakes fully.


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BOGIE FRAMEThe frame is made up of two longitudinal components

(1) connected by two cross-beams

(2) which also support the brake units.

The various suppor ts which connect the

dif ferent bogie components are welded to the frame.


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WINDOW UNITSThe sealed window units consist of 8.4 mm outer glass and 4 mm inner glass w

Argon gas filled.

Argon is an inexpensive, non-toxic, odorless gas .

It increase sound proofing characteristics of thewindow.

Minimizes heat exchange through the window.

Argon will not corrode the window material.

This type of windows can even block ultraviolet rays.


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THANX FOR THE TIME


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