tata motor workshop by daniel sujit

2. JNIT
JAIPUR , SITAPURA
RAJASTHAN
SEMINAR -TATA MOTOR
PRESENTED BY-
SUJIT KUMAR SUBMITED TO
BATCH B2 Mr. AMIT KUMAR
ROLL NO.-12EJGME113

3.  F0UNDED :- 1945
 FOUNDER :- J.R.D. Tata
 HEADQUARTERS :- Mumbai,Maharashtra, India.
 KEY PEOPLE :- Ratan tata, Chairman
 PERENT :- Tata Group
 SUBSIDIARISE :- Jaguar & Land Rover
 PRODUCTS :- Automobiles & Engines
TATA MOTORS LTD

4. TATA MOTORS
 Tata Engineering and Locomotive Company(TELCO) -
Renamed Tata Motors in 2003.
 India’s Largest Automobile Company - Commercial,
Passenger & Utility Vehicles - 59% Market Share.
 Ranks among top 6 - Medium & Heavy Commercial
Vehicles in the World.
 130 Models of Light, Medium & Heavy Commercial
Vehicles.
 1st Company from India’s Engineering Sector to be listed in
NYSE ( Sept04 ).

5. PIONEERS

6. ABOUT RATAN TATA
 BORN :- DECEMBER 28, 1937 (28-12-1937) (AGE-73).
 RESIDENCE :- COLABA, MUMBAI.
 NATIONALITY :- INDIA.
 ETHNICITY :- CORNELL UNIVERSITY & HARVARD
UNIVERSITY.
 AWARDS :- 1) PADMA BHUSHAN - 2000.
2) PADMA VIBHUSHAN - 2008.
3) ORDER OF THE BRITISH EMPIRE - 2009.

7. SERVICE(MOTOR VEHICLE)
 A motor vehicle service is a series of maintenance procedures carried out at a set time interval
or after the vehicle has travelled a certain distance.
 Oil and Filter Service
 At this service the oil in your car will be changed along with the oil filter. In addition to this,
other areas of your vehicle will be checked such as brake fluid, anti-freeze coolant, windscreen
wash and power steering fluid. Your battery will also be checked along with your windscreen
and tyres.
 Interim Service
 In addition to the items covered in the Oil and Filter Service, at this service your car will also
have the brakes, steering, suspension and shock absorbers checked.
 Full Service
 In addition to the items covered in the Oil and Filter Service and the Interim Service, your car
will also have the wheel alignment and bearings checked along with fuel filters, spark plugs.

8. SERVICE CENTER TATA MOTORS
 A motor vehicle service is a series of maintenance procedures carried out at a set time
interval or after the vehicle has travelled a certain distance. The service intervals are
specified by the vehicle manufacturer in a service schedule and some modern cars display
the due date for the next service electronically on the instrument panel.
 Maintenance tasks commonly carried out during a motor vehicle service include:
 Change the engine oil
 Replace the oil filter
 Replace the air filter
 Replace the fuel filter
 Tune the engine
 Check level and refill brake fluid
 Check level and refill Automatic Transmission Fluid
 Grease and lubricate components
 Check condition of the tires

9. ENGINE OIL
 Motor oil, engine oil, or engine lubricant is any of various well-developed lubricants that are
used for lubrication of internal combustion engines.
 The main function of these lubricants is to reduce wear on moving parts; they also clean,
inhibit corrosion, improve sealing, and cool the engine by carrying heat away from moving
parts.
 Lubricating oil creates a separating film between surfaces of adjacent moving parts to
minimize direct contact between them, decreasing heat caused by friction and reducing
wear, thus protecting the engine.
 PROPERTIES
 Most motor oils are made from a heavier, thicker petroleum hydrocarbon base stock derived
from crude oil, with additives to improve certain properties. The bulk of a typical motor oil
consists of hydrocarbons with between 18 and 34 carbon atoms per molecule.

10. OIL FILTER
 The next important step in changing your oil is replacing the oil filter
 the oil filter holds all the excess sludge and grime that the oil catches while lubricating the engine.
 Changing the filter is vital to car maintenance because without a new oil filter in place, new engine oil will be
passing through the old filter, making it dirty and less effective.
 Use the oil filter wrench, available at any automotive maintenance shop, and turn it counterclockwise
to loosen the filter.
 The old filter will have hot oil inside it so be careful when taking it off
 Before installing the new oil filter, first take a little bit of clean oil and rub it around the rubber gasket of the
new filter. This will help the new filter fit snugly onto the engine block
 The oil and the oil filter need to be periodically replaced. While there is a full industry surrounding regular oil
changes and maintenance, an oil change is a fairly simple operation that most car owners can do
themselves.
 The motor oil and especially the additives also undergo thermal and mechanical degradation, which reduce
the viscosity and reserve alkalinity of the oil. At reduced viscosity, the oil is not as capable of lubricating the
engine, thus increasing wear and the chance of overheating. Reserve alkalinity is the ability of the oil to resist
formation of acids. Should the reserve alkalinity decline to zero, those acids form and corrode the engine

11.  When you're under the vehicle draining the oil, locate the oil filter. It will be
cylindrical and may be blue, white, black or orange depending on the brand.
Use the oil filter wrench, available at any automotive maintenance shop, and
turn it counterclockwise to loosen the filter.

12. AIR FILTER
A CLEAN AIR FILTER IS A NECESSITY FOR THE PROPER OPERATION OF A CAR. A CLEAN
AIR FILTER RESULTS IN IMPROVED GAS MILEAGE, BETTER ACCELERATION, INCREASED
ENGINE LIFE, LOWER EMISSIONS AND OVERALL IMPROVED ENGINE PERFORMANCE. NOT
ONLY DOES AN AIR FILTER CLEAN THE AIR ENTERING THE ENGINE BUT IT ALSO PREVENTS
DEBRIS FROM ENTERING THE ENGINE AND CAUSING DAMAGE.
AS AN AIR FILTER BECOMES DIRTY, THE CAPACITY FOR IT TO FILTER THE AIR GOING INTO
THE ENGINE IS REDUCED. BECAUSE OF THIS, THE ENGINE IS NOT ABLE TO FUNCTION
PROPERLY, WHICH MAY CAUSE NUMEROUS DRIVABILITY ISSUES.
DIRTY FILTERS WILL RESULT IN POOR GAS MILEAGE, AND OVER TIME COULD DAMAGE
YOUR SPARK PLUGS. SHOULD YOU LEAVE A DIRTY FILTER IN YOUR VEHICLE LONG
ENOUGH, IT IS POSSIBLE TO RUIN YOUR PLUGS. DAMAGED SPARK PLUGS COULD AFFECT
NOT ONLY YOUR VEHICLE'S PERFORMANCE, BUT ALSO THE ABILITY TO START YOUR CAR.

13. FUEL FILTER
 A fuel filter is a filter in the fuel line that screens out dirt and rust particles from the fuel,
normally made into cartridges containing a filter paper. They are found in most internal
combustion engines.
 Fuel filters need to be maintained at regular intervals. This is usually a case of simply
disconnecting the filter from the fuel line and replacing it with a new one, although some
specially designed filters can be cleaned and reused many times. If a filter is not replaced
regularly it may become clogged with contaminants and cause a restriction in the fuel flow,
causing an appreciable drop in engine performance as the engine struggles to draw
enough fuel to continue running normally.

14. ENGINE TUNNING
 Engine tuning is an adjustment, modification of the internal combustion engine or modification to its
control unit, otherwise known as its ECU (Engine Control Unit). It is performed to yield optimal
performance, to increase an engine's power output, economy, or durability. These goals may be
mutually exclusive, and an engine may be detuned with respect to output (work) in exchange for better
economy or longer engine life due to lessened stress on engine components.
 A tune-up usually refers to the routine servicing of the engine to meet the manufacturer's specifications.
Tune-ups are needed periodically as according to the manufacturer's recommendations to ensure an
automobile runs as expected. Modern automobiles now typically require only a small number of tune-
ups over the course of an approximate 250,000-kilometre (160,000 mi) or a 10-year lifespan.
 Tune-ups may include the following:
 Adjustment of the air-fuel mixture
 Inspection and possible replacement of ignition system components like spark plugs, contact
breaker points, distributor cap and distributor rotor
 Replacement of the air filter and other filters
 Inspection of emission controls

15. HOW DOES A BRAKING SYSTEM WORK?
 When the brake pedal is depressed, the pressure on the brake pedal moves a piston in the
master cylinder, forcing the brake fluid from the master cylinder through the brake lines and
flexible hoses to the calipers and wheel cylinders. The force applied to the brake pedal
produces a proportional force on each of the pistons.
 The calipers and wheel cylinders contain pistons, which are connected to a disc brake pad or
brake shoe. Each output piston pushes the attached friction material against the surface of the
rotor or wall of the brake drum, thus slowing down the rotation of the wheel.
 When pressure on the pedal is released, the pads and shoes return to their released positions.
This action forces the brake fluid back through the flexible hose and tubing to the master
cylinder.
 The brakes transmit the force to the tires using friction, and the tires transmit that force to the
road using friction also.

16. HOW DRUM BRAKES WORK
 Drum brakes work on the same principle as disc brakes: Shoes press against a spinning surface. In
this system, that surface is called a drum.
Many cars have drum brakes on the rear wheels and disc brakes on the front. Drum brakes have
more parts than disc brakes and are harder to service, but they are less expensive to manufacture,
and they easily incorporate an emergency brake mechanism.
Let's break it down and explain what each piece does.
the drum brake has two brake shoes and a piston. But the drum brake also has an
adjuster mechanism, an emergency brake mechanism and lots of springs.
Working:::
 When you hit the brake pedal, the piston pushes the brake shoes against the drum. That's pretty
straightforward.
 the brake shoes contact the drum, there is a kind of wedging action, which has the effect of
pressing the shoes into the drum with more force.
 The extra braking force provided by the wedging action allows drum brakes to use a smaller piston
than disc brakes. But, because of the wedging action, the shoes must be pulled away from the
drum when the brakes are released. This is the reason for some of the springs. Other springs help
hold the brake shoes in place and return the adjuster arm after it actuates

17. 1. LOCATION OF DRUM BRAKES.
2. DRUM BRAKE WITH DRUM IN PLACE
3. DRUM BRAKE WITHOUT DRUM IN PLACE
4. PARTS OF A DRUM BRAKE

18. SERVICING
 The most common service required for drum brakes is changing the brake shoes. Some drum
brakes provide an inspection hole on the back side, where you can see how much material is left
on the shoe. Brake shoes should be replaced when the friction material has worn down to within
1/32 inch (0.8 mm) of the rivets. If the friction material is bonded to the backing plate (no rivets),
then the shoes should be replaced when they have only 1/16 inch (1.6 mm) of material left.
 A badly scored drum can sometimes be repaired by refinishing.
 If a worn-out brake shoe is used for too long, the rivets that hold the friction material to the
backing can wear grooves into the drum.
 Since the contact surface is the inside of the drum, as you remove material from the drum brake
the diameter gets bigger.


20. HOW DISC BRAKE WORK
 Most modern cars have disc brakes on the front wheels, and some have disc brakes on all
four wheels. This is the part of the brake system that does the actual work of stopping the
car.
 The most common type of disc brake on modern cars is the single-piston floating caliper.
 The main components of a disc brake are:
 1.The brake pads
 2.The caliper, which contains a piston
 3.The rotor, which is mounted to the hub
 the brake pads squeeze the rotor instead of the wheel, and the force is
transmitted hydraulically instead of through a cable. Friction between the pads and the disc

21. A MOVING CAR HAS A CERTAIN AMOUNT OF KINETIC ENERGY, AND THE BRAKES HAVE
TO REMOVE THIS ENERGY FROM THE CAR IN ORDER TO STOP IT. HOW DO THE BRAKES DO
THIS? EACH TIME YOU STOP YOUR CAR, YOUR BRAKES CONVERT THE KINETIC ENERGY TO
HEAT GENERATED BY THE FRICTION BETWEEN THE PADS AND THE DISC. MOST CAR DISC
BRAKES ARE VENTED.
VENTED DISC BRAKES HAVE A SET OF VANES, BETWEEN THE TWO SIDES OF THE DISC, THAT
PUMPS AIR THROUGH THE DISC TO PROVIDE COOLING.

22. SERVICING YOUR BRAKES
The most common type of service required for brakes is changing
the pads. Disc brake pads usually have a piece of metal on them
called a wear indicator.
When enough of the friction material is worn away, the wear
indicator will contact the disc and make a squealing sound. This
means it is time for new brake pads.
There is also an inspection opening in the caliper so you can see
how much friction material is left on your brake pads.

23. TOOL USED IN SERVICE CENTER
 Tools needed for a Car Service
 To complete a car service, the mechanic will need the following tools and
spares:
 Oil filter removal tool,
 Spanner set up for sump,
 Screw driver,
 Jack,
 Tyre inflator,
 Oil catch pan,
 Oil filter,
 Air filter,
 Anti freeze,
 Tyres,
 Washer fluid

25. 10/7/2015