project report on mahindra tractors....

1. INDUSTRIAL TRAINING INDUSTRIAL TRAINING
REPORTREPORT
(FOUR WEEKS)(FOUR WEEKS)
ATAT
MAHINDRA TRACTORSMAHINDRA TRACTORS
( muzaffarnagar )( muzaffarnagar )

2. INTRODUCTION TO THE INTRODUCTION TO THE
MAHINDRAMAHINDRA

OrganizationOrganization:- :- Established in 1963.Established in 1963.

Assembly Plants:-Assembly Plants:-

BarodaBaroda, , GujaratGujarat - -Mahindra GujaratMahindra Gujarat

ChappercheriChappercheri - Swaraj plant - Swaraj plant

JaipurJaipur, , RajasthanRajasthan

MumbaiMumbai, , MaharashtraMaharashtra

MohaliMohali, , PunjabPunjab

NagpurNagpur, Maharashtra, Maharashtra

Rudrapur, UttarakhandRudrapur, Uttarakhand

Zaherabad, Andhra PradeshZaherabad, Andhra Pradesh

Nashik, MaharashtraNashik, Maharashtra

3. 
Mahindra Tractors is number one in sales in Mahindra Tractors is number one in sales in
India - the largest tractor market in the India - the largest tractor market in the
world.world.

it has been the market leader since 1983. it has been the market leader since 1983.
Its sales are predominantly in the states of Its sales are predominantly in the states of
Gujrat, Haryana, Punjab, Maharashtra and Gujrat, Haryana, Punjab, Maharashtra and
the Southern States. Its sales in Gujarat are the Southern States. Its sales in Gujarat are
under the label Mahindra Gujarat and its under the label Mahindra Gujarat and its
sales in Punjab are under the label Swaraj.sales in Punjab are under the label Swaraj.

In 1999, Mahindra purchased 100% of In 1999, Mahindra purchased 100% of
Gujarat Tractors from the Government of Gujarat Tractors from the Government of
Gujarat ??Gujarat ??
[9][9]
and Mahindra purchased a and Mahindra purchased a
64.6% stake in Swaraj in 2004.64.6% stake in Swaraj in 2004.

4. The Various Processes Occurs UnderThe Various Processes Occurs Under
MAHINDRA TRACTOR DIVISION Are As MAHINDRA TRACTOR DIVISION Are As
UnderUnder:-:-
•Light Machine ShopLight Machine Shop
•Heavy Machine ShopHeavy Machine Shop
•Assembly ShopAssembly Shop
•Paint ShopPaint Shop
•Tool RoomTool Room
•Heat TreatmentHeat Treatment
•R & D Deptt.R & D Deptt.

5. LMS SHOPLMS SHOP

INTRODUCTION:-INTRODUCTION:- 1.All shafts , gears, 1.All shafts , gears,
bushes which are used in tractors are bushes which are used in tractors are
manufactured here.manufactured here.
2.Most of machines are of HMT( for gear 2.Most of machines are of HMT( for gear
shaver) and GERMAN (for bevel gear) shaver) and GERMAN (for bevel gear)

Machines used in LMS:-Machines used in LMS:-
1.Planer machine1.Planer machine
2.Hand Lathe2.Hand Lathe
3.Universal Milling Machine3.Universal Milling Machine
4.Grinding Machine4.Grinding Machine
5.Hydraulic Press 5.Hydraulic Press

7. 6.Bevel Generator 6.Bevel Generator
7.CNC Machines7.CNC Machines

Manufacturing OperationsManufacturing Operations:-:-

FacingFacing

Under cuttingUnder cutting

ChamferingChamfering

Finish turningFinish turning

Grooving Grooving

KnurlingKnurling

BroachingBroaching

DrillingDrilling

BoringBoring

GrindingGrinding

HobbingHobbing

ShapingShaping

9. Component Machined in ShopComponent Machined in Shop::
1)1)Bull pinion shaft (L&R)Bull pinion shaft (L&R)
2)2)Bull pinion (L&R)Bull pinion (L&R)
3)3)GearsGears
4)4)Idler clusterIdler cluster
5)5)Input shaftInput shaft
6)6)Intermediate shaftIntermediate shaft
7)7)Lay shaftLay shaft
8)8)Internal gearsInternal gears
9)9)BushesBushes
10)10)Cage assy (L&R)Cage assy (L&R)
11)11)Cross & etcCross & etc

11. HEAVY MACHINE SHOPHEAVY MACHINE SHOP

IntroductionIntroduction:-:-All heavy casting of tractor machined in this All heavy casting of tractor machined in this
shop.shop.
•The major operation carried out are milling , boring , tapping , The major operation carried out are milling , boring , tapping ,
champhering, finishing etcchamphering, finishing etc..

Types of machineTypes of machine : :

radial drilling machineradial drilling machine

Hergebret machineHergebret machine

Vertical milling machineVertical milling machine

Horizontal milling machineHorizontal milling machine

Simplex milling machineSimplex milling machine

Duplex milling machineDuplex milling machine

LatheLathe

Double end boring machineDouble end boring machine

Automatic lathe Automatic lathe

SPM (special purpose machine)SPM (special purpose machine)

12. 
List of major component machined in List of major component machined in
H.M.S:-H.M.S:-

Differential housingDifferential housing

Gear boxGear box

Trumpet housing Trumpet housing

Rear axleRear axle

13. PAINT SHOPPAINT SHOP
The paint shop can be classified into following sections:-The paint shop can be classified into following sections:-
1)1)CHASSIS PAINTING AREA CHASSIS PAINTING AREA
2)2)PRE TREATMENT AREAPRE TREATMENT AREA
3)3)JOIST PAINTING AREAJOIST PAINTING AREA
4)4)FINAL PAINTING AREAFINAL PAINTING AREA

14. ASSEMBLY SHOPASSEMBLY SHOP

ASSEMBLYASSEMBLY::
The process of joining various constituents to form a The process of joining various constituents to form a
final product.final product.

Assembly of the tractor is divided in to two sectionsAssembly of the tractor is divided in to two sections::
• Before paint assembly shop
• After paint assembly shop
Before Paint Assembly ShopBefore Paint Assembly Shop::
This shop is further divided into five loops namely:This shop is further divided into five loops namely:
a)a)Differential loopDifferential loop
b)b)Engine loopEngine loop
c)c)Hydraulic rear cover loopHydraulic rear cover loop
d)d)Gearbox loopGearbox loop
e)e)Engine coupling loopEngine coupling loop

15. DIFFERENTIAL LOOPDIFFERENTIAL LOOP::

FunctionFunction:-:-

When the wheels are driven positively by engine , a device is When the wheels are driven positively by engine , a device is
necessary which make the wheels move at different speed on necessary which make the wheels move at different speed on
turns and equal speed on straight path.turns and equal speed on straight path.

To accomplished this purpose a system of gear called “ To accomplished this purpose a system of gear called “
Differential System “ is provided.Differential System “ is provided.
differential has the following two function:- differential has the following two function:-
1.1.On st.traveling path it allows both the rear wheels of tractor to On st.traveling path it allows both the rear wheels of tractor to
get equal power.get equal power.
2.2.On turns, it allows the inner wheel to move slower than the On turns, it allows the inner wheel to move slower than the
outer wheels.outer wheels.

16. the assembly of the differential system is done thethe assembly of the differential system is done the following following
mannermanner::
1.1. Differential castingDifferential casting
2.2. The cage assembly is done which includes:The cage assembly is done which includes:
Crown wheel, Tail pinion assembly, Roller bearing, bevel wheels , cross , Crown wheel, Tail pinion assembly, Roller bearing, bevel wheels , cross ,
bevel pinions.bevel pinions.
3.3. BP shaft Left & Right.BP shaft Left & Right.
4.4. Meshing of crown wheel and tail pinionMeshing of crown wheel and tail pinion..
5.5. Weight test.Weight test.
6.6. PTO shaft.PTO shaft.
7.7. Rear axle/trumpet tube.Rear axle/trumpet tube.
8.8. PTO shifter assembly.PTO shifter assembly.
9.9. Gear box .Gear box .
10.10.Rear cover .Rear cover .
11.11.Disc brakes.Disc brakes.
12.12.Trailer hook.Trailer hook.
13.13.Angel bracket.Angel bracket.
14.14.Rocker link.Rocker link.
15.15. footboardfootboard
16.16.Clutch pedalClutch pedal. .

18. GEAR BOXGEAR BOX
The power transmission is done to the wheels with the help ofThe power transmission is done to the wheels with the help of
following important parts:following important parts:
•ClutchClutch
•Gear box Gear box
•DifferentialDifferential
•Rear axlesRear axles

So Gear box is a power transmitting part of vehicles .So Gear box is a power transmitting part of vehicles .

Pulling power can be or Pulling power can be or

Convert forward motion into reverse motion.Convert forward motion into reverse motion.

Convert power of engine running at high speed into low Convert power of engine running at high speed into low
speed at high torque (for starting). speed at high torque (for starting).

Disconnect engine from rear wheels. Disconnect engine from rear wheels.

Working principleWorking principle::
Horse power Horse power H.P.=k*T*NH.P.=k*T*N
where, k= const. , T= torque , N= rotational speedwhere, k= const. , T= torque , N= rotational speed

19. 
Gear Box TypesGear Box Types::
o Selective gearbox:Selective gearbox:
a) sliding mesha) sliding mesh
b) constant meshb) constant mesh
c) synchronous typec) synchronous type
o Planetary gear transmissionPlanetary gear transmission
o Automatic gearboxAutomatic gearbox
Gear Box AssemblyGear Box Assembly::
1.1.Gear box housingGear box housing
2.2.Lay & intermediate shaft are assembledLay & intermediate shaft are assembled
3.3.Idler clusterIdler cluster
4.4.Drive shaft & input shaft assembledDrive shaft & input shaft assembled
5.5.Output shaft assembledOutput shaft assembled
6.6.Shifter lock , shifter rodShifter lock , shifter rod
7.7.Shifter forksShifter forks
8.8.Planet gear & carrier (hi-low mech.)Planet gear & carrier (hi-low mech.)
9.9.Locking washersLocking washers
10.10.Steering mechanismSteering mechanism

20. REAR COVER REAR COVER

Rear cover is mounted on the differential assembly & perform Rear cover is mounted on the differential assembly & perform
various other operations.various other operations.
Layout of Rear cover Assembly Layout of Rear cover Assembly
Rear cover
casting
Cylinder
assembly
Control valve
assembly
Response
Valve
Assembly &
Sensor tube
attached
Testing of rear cover for any leakage

21. 
Rear Cover AssemblyRear Cover Assembly :- :-
1.1.Rear cover castingRear cover casting
2.2.Rocker shaftRocker shaft
3.3.The cylinder, rocker arm, connecting rod fittedThe cylinder, rocker arm, connecting rod fitted
4.4.Bracket & levers Bracket & levers
5.5.The response & control valveThe response & control valve
6.6.Sensor tubeSensor tube
7.7.TestingTesting

22. DISMOUNTING STAGEDISMOUNTING STAGE
The Dismounting Stage is divided into 5 stages:The Dismounting Stage is divided into 5 stages:
Stage 1Stage 1:- :- Alternator, horn, brake rod, brake switchAlternator, horn, brake rod, brake switch connection, connection,
fan belt.fan belt.
Stage 2Stage 2:- :- Speedometer wire, rear frame, fuel tank, overflow Speedometer wire, rear frame, fuel tank, overflow
pipe, felt pad.pipe, felt pad.
Stage 3:- Fan, radiator, hose pipe, dash board & its cover,
number plate.
Stage 4:- Battery, steering wheel, head light, clutch connection,
knob & cover, hook & slide panel, sealing.
Stage 5:- Seat, sheet metal covers, tyre fixing, battery cover,
engine oil pouring & greasing, stickers.

24. THANK YOUTHANK YOU