INDUSTRIAL TRAINING PRESENTATION ON REGIONAL
WORKSHOP OF UTC(UTTRAKHAND
TRANSPORT CORPORATION)
BY :VISHAL BISHAWAKARMA
ABOUT UTTARAKHAND MANDALIYA KARYALIYA,
KATHGODAM
WORKSHOP FOR UTTARAKHND ROADWAYS BUSES IS SITUATED IN
KATHGODAM AND IS BEST KNOWN AS UTTARAKHAND MANDALIYA
KARYALIYA. MAINTENANCE WORK OF ROADWAYS PASSANGER VEHICLE
IS DONE HERE WHICH INCLUDES SPARE REPLACEMENT ,LUBRICATION ,
INSPECTION ,REPAIR,TESTING ETC OF DIFFERENT PARTS OF VEHICLES.
MOST OF JOB IS MANUALLY IN DIFFERENT SECTION PROVIDED FOR
MAINTENANCE AND REPAIR OF DIFFERENT PARTS OF AUTOMOBILE.
SERVICES
The constructed parts are supplied to the following Roadways Depots
as per the need.
• Ranikhet Depot
• Kashipur Depot
• Bhowali Depot
• Almora Depot
• Haldwani Depot
• Ramnagar Depot
WORKSHOP HAS FOLLOWING SECTIONS:
1) Engine Section.
2) Gear Box and Clutch Section.
3) Spring Section.
4) Fuel Injection Pump Section.
5) Axel Section.
6) Electric Section.
ENGINE SECTION
Diesel engine of buses used in roadways buses is manufactured of tata
and Ashok Leyland. Both engine are 6 cyinder turbo chaged intercooled
Diesel engine.
Engines of the following buses are repaired in the workshop
• TATA- 1312
• TATA- 1520
• TATA- 1210
• LEYLAND
1.
SPECIFICATIONS OF ENGINE-:
MODEL – T.C. 1312 (TATA).
1. NUMBER OF CYLINDER – 6.
2. BORE SIZE – 102 mm.
3. FUEL USED- DIESEL.
4. FIRING ORDER- 1-5-3-6-2-4
5. INJECTION PRESSURE- 175-180.
6. AVERAGE – 5-6 km/lt.
COMPARISON B/W TATA AND ASHOK LEYLAND DIESEL ENGINE
SERIAL NO.
PARAMETER
TATA ENGINE
ASHOK LEYLAND ENGINE
1.
ENGINE TYPE
DIESEL ENGINE
DIESEL ENGINE
2.
NO. OF CYLINDER
6
6
3.
CYLINDER ARRANGEMENT INLINE
INLINE
4.
LUBRICATION TYPE
PRESSURE LUBRICATION
BY ROTARY PUMP
PRESSURE LUBRICATION
BY ROTARY PUMP
5.
POWER OUTPUT
125 HP
135HP
6.
TURBOCHARGER
YES
YES
7.
OIL PUMP
ROTARY
ROTARY
8.
COMBUSTION CHAMBER
DIRECT
INJECTION(HEMISPHERIC
DISHED PISTON)
DIRECT
INJECTION(HEMISPHERIC
DISHED PISTON)
PARTS OF ENGINE:There are following parts of an 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. Dumper Pulley.
14. Vibration Dumper Pulley.
15. Water Pump.
16. Timing Plate Housing.
17. Push Rod.
18. Diesel Filter.
19. Tappet.
20. Gudgeon Pin.
21. Alternator.
22. Turbo Charger.
LUBRICATION SYSTEM
1) OIL PUMP
2)OIL SEALS
3)ENGINE OIL DIP STICK
4)OIL FILLER CAP ON TOP SECOND CYLINDER
5)OIL FILTER
6)OIL PASSAGES
7)OIL PAN
ACCESSORIES DRIVEN BY ENGINE
THOSE DRIVEN BY TIMING GEARS
1.
CAMSHAFT
2.
OIL PUMP
THOSE DRIVEN THROUGH BELTS
1.
AIR COMRESSOR
2.
FUEL PUMP
3.
RADIATOR FAN
WAY OF SERVICING
1. The whole engine is dismantled manually and the oil is removed from sump
2. Main shaft bearing, sliding contact bearing , plastic passages for oil is replaced
by new one .
3. Cleaning of engine block and other parts .
4. Piston rings which is of three types pressure rings , oil rings , oil ring and top
ring also replaced by new one.
5. After replacing all worn out parts the engine is assembled and tested by
employing fuel pump and overflow pipe to the tank which is fuel filled.
Fuel Pump Section
Fuel Pump used
In Diesel Engine F.I. Pump is used for carrying the in correct amount
time, high pressure and reaches it to injector in it the injection pressure
is 7 to 30 M Pa and is Bosch
Parts of F.I. Pump-:
1. Delivery Valve.
10. Air Nipple.
2. Delivery valve spring.
11. Hand Primer.
3. Plunger.
12. Cotton Glassy.
4. Pump housing.
13. Paper Glassy.
5. Control pack.
14. Idling.
6. Plunger Return spring.
15. Lever Washer
7. Control sleeve.
16. Control Rod
8. Cam Shaft.
17. Sluing Lever
9. Feed Pump.
18. Fly Weight
SPECIFICATION OF F.I. PUMP-:
Model
-Bosh Type F.I. Pump
Injection Pressure
- 7 to 30 M Pa.
CAM Sequence
- 1-5-3-6-2-4.
Direction of Rotation -Clock Wise.
WORKING PRINCIPLE-:
Fuel by suck fuel pump from the tank at low pressure
with the help of filter. Fuel is supplied to unit injector
where its pressure is increased. And the high pressure
fuel is then supplied to the engine cylinders at
appropriate time. Any extra fuel goes again to tank
through relief valve.
TESTING OF FUEL PUMP
Testing of fuel pump is done on fuel pump is done fuel pump
test bench which
• Measuring each cylinder delivery at any speed.
• Checking of each cylinder injection timing with static .
• Check the pneumatic control performance.
TEST BENCH
GEAR BOX SECTION
PARTS OF GEAR BOX-:
1. Main Shaft
2. Counter Shaft
3. Shifting Rod
4. Gear Box Housing
5. Cover Plate
6. Bearing and Sleeve
7. Fork
8.Drive Shaft
9.Gear Box Cover Rear
10.Spring Washer
11.Oil Seal
12.Front Cover
13.Butt Rings
14.Hub and Bush
15.Synchronizer
ASSEMBLY-:
Counter Shaft adjusts in Gear Box which is made up of
Cast Iron by Casting. There are Five Gears in counter
shaft. Main shaft acts as a base purpose shaft. The main
shaft is assembled in which there are 6 helical gears.
There are 5 forward and 1 reverse gear. In these sleeve
fork fits after the shifting rod.
Number of Teeth in each Gear-:
In Main Shaft-:
1.
First Gear - 39
2.
Second Gear – 32
3.
Third Gear – 25 or 26
4.
Fourth Gear – 19 or 20
5.
Fifth Gear – 17
In Counter Shaft-:
1.
First Gear – 11
2.
Second Gear – 17
3.
Third Gear – 23 or 24
4.
Fourth Gear – 29
5.
Fifth Gear – 36
THANK YOU