This is my final year training presentation.

1. PRESENTATION ON
INDUSTRIAL TRAINING

2. ABOUT
UTTRAKHAND TRANSPORT CORPORATION

3. WORKS-MAINTENANCE OF
BUSES
• Buses made by TATA
• Buses made by Ashok Leyland

4. WORK STATIONS(SECTIONS)
• Front Axel Section
• Rear Axel Section
• Brake Drum Section
• Leaf Spring(Kamani) Section
• Alternator & Self Starter,Electric Section
• Gear Box Section
• Tires Section
• F.I.P. Section
• Engine Section
• Field Workshop & Welding Section

5. LAYOUT OF BUS

6. • Radiator.
• Fan.
• Cylinders.
• Oil Sump.
• Flywheel Hub.
• Fly wheel.
• Pressure Plate.
• Main Shaft.
• Gear Box.
• Differential.

7. EGR((EXHAUST GAS RECIRCULATION))
• It’s function is to reduce the amount of NOX formation by
controlling combustion chamber temperature.in this system the
fresh air in the intake manifold which reduces the max.
combustion chamber temp. & thereby reducing NOX content.
• Air filter MAF sensor turbo charger intercooler engine

8. FRONT AXLE

9. • PARTS OF FRONT AXLE
1. Front I-Beam.
2. struct axle.
1.king pin (L&R)
2.king pin bush(2L&2R)
3.washer
3. Right side-Roller Bearing.
4. Left side-Brash & steel bearing.
5. Break cam shaft(L&R)
Diaphram bracket.
6. Tie rod.
Tie rod ends contains bearings used & work for
taking turns(L&R).

10. REAR AXLE

11. • Part of Rear Axle
1.Differential unit
1. Pair of sun gears.
2. Pair of planet gears.
2. Diaphram

12. AIR-BRAKE TRANSMISSION
SYSTEM

13. SELF STARTER
Self starter work is
to start a vehicle . It
contains a solenoid
inside it.

14. ALTERNATOR
It is used to charge the battery it generates 3-phase AC current
• voltage generation=14.2—14.8v
• (ideal)o/p during slow running—14.2v
• at 2000rpm –14.8v
• It’s parts
• Rotor-it is a magnet
• Stator-it generates AC
• Rectifier plate-it converts ac—dc
• REGULATOR-it controls the o/p voltage.

15. FUEL INJECTION PUMP(F.I.PUMP):-
In Diesel Engine F.I. Pump is used for delievering the
FUEL in correct amount , time, to the fuel inejctor.
WORKING PRINCIPLE
The Fuel suck by Fuel Pump from the tank at a low
pressure with the help of a filter and than after reaching
a certain pressure it is delivered to fuel injector with the
help of it’s rail and the rest fuel is returned through the
Relief valve
 Injection Pressure- different an per engine.
 CAM Sequence- 1-5-3-6-2-4.
 Direction of Rotation- Clock Wise.

17. ((1)) ((2))
((3))
1-Flywheel
2-Cylinder Head
3-Turbo Charger

19. FUEL TRANSMISSION:-
1-Fuel Tank
2-Feed Pump
3-Paper Filter
4-cloth Filter
5-F.I.Pump
6,7-Automizers
8,9-Nozzles
10.11-Cylinders

20. GEAR BOX :-
Gear box is fixed with Clutch Plate Housing behind Clutch. Gear box is used to
drive vehicles in different loads & in different types of roads. With the help of
gears the speed of vehicles is used as required.
TYPES OF GEAR BOX:-
 Sliding mesh gear box.
 Constant mesh gear box.
 Synchromesh gear box.
 Planetarty gear box.( Epicyclic gear box).

21. PARTS OF GEAR BOX
1-Main Shaft. 10-Spring Washer
2-Counter Shaft. 11-Oil Seal.
3-Shifting Rod. 12-Front Cover.
4-Gear Box Housing.
5-Cover Plate. 13-Hub and Bush.
6-Bearing and Sleeve. 14-Synchronizing.
7-Fork.
8-Cylindrical pin. 15-Drive Shaft.
9-Gear Box Cover Rear.

22. 1)—Piston
2)—Compression Ring
3)-Oil Ring
((1)) ((2)) ((3))

23. LUBRICATION OF THE GEAR BOX
80 W 90 Lubricating oil is used for the Lubrication of Gear Box. Splash lubrication
method is used for the Lubrication.
QUANTITY:-3.5 to 4 ltr.
Precaution and Safety features-:
 Lubrication of all Gear box is necessary.
 Gear selection should happen according to the nature of Load and Road.
 Gear shifting should happen according to the speed of vehicle and engine.
 Gear shifting should happen softly.

24. LEAF SPRING :-
Because of the up’s and down’s the vehicle get’s so
many shock’s, to prevent these shock the LEAF
SPRING’S are used. They are Semi-Elliptical in
shape.
 The total number of the leaf Spring in a vehicle is 4,.
 One spring contains 15 leafs
 In Front axle the length of Spring is 74 Inch and decreases 4
inch to downwards,
 In Rear Axle the length of Spring is 78 Inch and simultaneously
decreases as front axle.

25. ENGINE:-
125HP(TATA)
135HP(ASHOK LEYLAND)

26. PARTS OF ENGINE:-
1-Cylindrical Head. 2-Oil Pump.
3-Cylinder Block. 4-Piston.
5-Crank Shaft. 6-Cam Shaft.
7-Cooling Fan. 8-Radiator.
9-Valve Mechanism. 10-Self Starter.
11-Fly Wheel. 12- Cooling Plate.
13-Damper Pulley. 14-Vibration Damper Pulley.
15-Water Pump. 16-Timing Plate Housing.
17-Push Rod. 18-Diesel Filter.
19-Tappet. 20-Gudgeon Pin.
21-Alternator. 22-Turbo Charger.

27. 1-CYLINDER BLOCK
2-CYLINDER GASKET
((1))
((2))

28. CRANKSHAFT
CYLINDER HEAD

29. FUEL FILTER OIL FILTER

30. GEAR BOX

31. DIFFERENTIAL

32. WATER PUMP

33. CLUTCH

35. COOLANT
RADIATOR FAN
&
DIFFUSER FAN

38. SPECIFICATIONS OF ENGINE:-
 MODEL – T.C. 1512 (TATA).
 NUMBER OF CYLINDER – 6.
 BORE SIZE – 102 mm.
 FUEL USED- DIESEL.
 FIRING ORDER- 1, 5, 3, 6, 2, 4
 INJECTION PRESSURE- 175-180.
 AVERAGE – 5-6 km/litre.

39. PRECAUTION & SAFETY FEATURES:-
Tappet clearance should be clean.
a) When inlet is hot >> 0.10 inch
b) When outlet is hot >> 0.20 inch
Rocker Arm & Lubrication of Rocker Arm
should be checked.
Tappet cover should always fix.
Lubrication oil should be replaced in
regular intervals.