O;kolkf;d ijh{k.k fjiksVZ izFke cSp ijh{k.k Lak[;k T- 1256/1783/2019 …fmttibudni.gov.in/MAHINDRA B 275 DI MKM.pdf · 2020. 5. 8. · 11. Haulage test 32 12. Components/Assembly

(;g ijh{k.k fjiksVZ 31/07/2024 rd oS/k gS।@ THIS TEST REPORT IS VALID UPTO 31/07/2024)

MAHINDRA, B-275 DI MKM (Brand Name: Bhoomiputra) TRACTOR

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¼d`f"k] lgdkfjrk ,oa fdlku dY;k.k foHkkx] e'khuhdj.k ,oa izkS|ksfxdh izHkkx½

GOVERNMENT OF INDIA Ministry Of Agriculture and Farmers Welfare

(Deptt. of Agricultural, Cooperation & Farmer’s Welfare, Mechanization & Technology Division)

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CENTRAL FARM MACHINERY TRAINING & TESTING INSTITUTE

(An ISO 9001: 2015 Certified Institute) TRACTOR NAGAR, BUDNI (M.P.) 466 445

E-mail: [email protected] Web site: http://www.fmttibudni.gov.in Page 1 of 47

O;kolkf;d ijh{k.k fjiksVZ (izFke cSp ijh{k.k) Lak[;k/No. : T- 1256/1783/2019

COMMERCIAL TEST REPORT (First Batch test ) ekg/Month : July, 2019

mailto:%[email protected]

mailto:%[email protected]

http://www.fmttibudni.gov.in/

T- 1256/1783/2019

MAHINDRA, B-275 DI MKM (Brand Name: Bhoomiputra)

TRACTOR - Commercial (First Batch Test)

THIS TEST REPORT IS VALID UPTO : 31/07/2024

CENTRAL FARM MACHINERY TRAINING & TESTING INSTITUTE – BUDNI

Page 2 of 47

Manufacturer

: M/s. Mahindra & Mahindra Ltd. (Farm

Equipment sector) Akurli Road, Kandivli

(East) Mumbai 400 101

Month : July

Test Report No. T- 1256/1783/2019

Year: 2019

GOVERNMENT OF INDIA

CENTRAL FARM MACHINERY TRAINING & TESTING INSTITUTE

TRACTOR NAGAR, BUDNI (MADHYA PRADESH) 466445, INDIA

Email: [email protected] Web site: http://www.fmttibudni,gov.in

Telephone: 07564-234729 Fax: 07564-234743

mailto:[email protected]

http://www.fmttibudni,gov.in/

T- 1256/1783/2019





Page 3 of 47

Type of Test : COMMERCIAL (First Batch Test )

Test code/Procedure

:

IS: 5994-1998 (Reaffirmed in 2009), IS: 9253-2001(Reaffirmed in 2007) and IS: 12207-2014

Period of Test

:

March, 2018 to January, 2019

Test Report No.

:

T- 1256/1783/2019

Month/Year

: July, 2019

i) The results reported in this report are observed values and no corrections have been applied for atmospheric and site conditions.

ii) The data given in this report pertain to the particular machine selected randomly by the representative of testing authority for batch test.

iii) The results presented in this report do not in any way attribute to the durability of the machine.

iv) This report should not be reproduced in part or full without prior permission of the Director, Central Farm Machinery Training and Testing Institute, Budni (M.P.)

v) This is a first batch test report and, should be read in conjunction with the

Test Report of base model i.e. “MAHINDRA, B275 DI MKM (Brand Name:

Bhoomiputra)” Tractor bearing No. T- 727/1234/2010 (July, 2010), and

supplementary report bearing report no. T-1241/1768/2019 released in May,

2019.

SELECTED CONVERSIONS

Sl.

No Units Conversion Factor

A B B R E V I A T I O N S

1. Force:

Apa As per applicant

1 kgf 9.80665 N TDC Top Dead Centre

2.20462 lbf IS Indian Standard

2. Power: LHS/RHS

Left Hand Side/ Right Hand Side

1 Mechanical power

1.0138 Metric horse power

Hg Mercury

745.7 W Temp. Temperature

1 Metric horse power

735.5 W N.R. Not recorded

1 kW 1.35962 Ps Rpm Revolutions per minute

3. Pressure: O.D/I.D

Outer diameter/ Inner diameter

1 psi 6.895 kPa N.A.

Not available/ Not applicable

1 kgf/cm2 98.067 kPa = 735.56

mm of Hg PTO Power take-off

1 bar 100 kPa = 10 N/cm2

R.H. Relative Humidity 1 mm of Hg 1.3332 m-bar

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C O N T E N T S

PAGE

1. Specification 6

2. Fuel and Lubricants 19

3. PTO Performance Test 19

4. Drawbar Performance Test 23

5. Power Lift and Hydraulic Pump Performance Test 28

6. Brake Test 29

7. Noise Measurement 30

8. Air Cleaner Oil Pull Over Test 30

9. Mechanical Vibration Measurement 31

10. Field Test 31

11. Haulage test 32

12. Components/Assembly Inspection 32

13. Adjustments, Defects, Breakdowns & Repairs 34

14. Comparison of Specification and Performance Characteristics of Previous

sample (Test Report No. T- 727/1234/2010, July, 2010 and

supplementary report bearing report no. T-1241/1768/2019 released in

May, 2019 and present sample.

34

15. Summary of Observations, Comments & Recommendations 40

16. Citizen Charter 47

17. Applicant’s Comments 47

ANNEXURE – I 47

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The “MAHINDRA, B-275 DI MKM (Brand Name: Bhoomiputra)” tractor had

undergone “Initial Commercial Test” at this Institute vide test report No. T-727/1234/2010 was

released in July, 2010. Thereafter, the firm had made modification in the technical specification

of tractor and permanently incorporated and tested under supplementary test report No. T-

1241/1768/2019 released in May, 2019. Now the applicant has submitted an application vide

letter no. Nil, dated 25.01.2016 for batch testing of “MAHINDRA, B-275 DI MKM (Brand

Name: Bhoomiputra)” tractor.

All the necessary tests as per table-1 of clause 6.0. of IS: 5994 -1998 (Reaffirmed in

2009) was carried out and test report released under.

Manufacturer : M/s. Mahindra & Mahindra Limited

(Farm Equipment Sector)

Akurli Road, Kandivli (E)

MUMBAI – 400 101 Location of other manufacturing

plants (apa)

: M/s. Mahindra & Mahindra Limited (Farm Equipment Sector) Akurli Road, Kandivli (E)

MUMBAI – 400 101 : M/s. Mahindra & Mahindra Limited

(Farm Equipment Sector) Hingna Road, Hingna MIDC,

NAGPUR- 440 016, (Maharashtra) : M/s. Mahindra & Mahindra Limited

(Farm Equipment Sector) Agri Business Development Centre, Khatima Panipat Highway, Udham Singh Nagar, Vil-Lalpur, Tehsil-Kichha,

RUDRAPUR-263153 (Uttranchal) : M/s. Mahindra & Mahindra Limited

(Farm Equipment Sector) Agri Development Centre, Vil-Mehla Tehsil-Dudu Jaipur- Ajmer Road,

JAIPUR-303 007 (Rajasthan) : M/s. Mahindra & Mahindra Limited

(Farm Equipment Sector) Near Bidar “T” Junction , Mahindra

Nagar, Zaheerabad- 502 220

Medak District (Telangana) Mahindra Research Valley-AS,

Mahindra World City, Plot No. 41/1, Anjur

P.O.: Chengalpattu- 603004 Kanchipuram-

district (Tamil Nadu) Test requested by (applicant) : M/s. Mahindra & Mahindra Limited

(Farm Equipment Sector)

Akurli Road, Kandivli (E)

Mumbai – 400 101 Test requested by (applicant) : The manufacturer

Place of running-in : At manufacturer’s works

Duration of said running-in, (h):

- Engine : 15

- Transmission : 30

Method of Selection : The test sample was selected randomly out of five tractors from the production line by the representative of testing authority.

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1. SPECIFICATIONS

1.1 Tractor: Make : Mahindra

Model : B-275 DI MKM

Brand name : Bhoomiputra

Variants, if any : None Type : Four wheeled, rear wheel driven, general

purpose, standard agricultural tractor. Year of manufacture : HH (November, 2017)

Chassis Serial number : MBNAAADGLHRH00024

Country of Origin : India

1.2 Engine:

Make : Mahindra

Model : MDI 1895 3A

Type : Four stroke, naturally aspirated, liquid cooled, direct injection, diesel engine.

Serial number : RHH2DBN8574

Year of manufacture 2017

Engine speed (Manufacturer’s recommended production setting), (rpm) : - Maximum speed at no load : 2075 to 2175

- Low idle speed : 750 to 850

- Speed at max. torque : 1300 to 1500

Rated speed, (rpm):

- For PTO use : 1900

- For drawbar use : 1900

1.3 Cylinder & Cylinder Head:

Number : Three

Disposition : Vertical, Inline

Bore/stroke, (mm) : 88.9/110 (apa)

Capacity as specified by the applicant, (cc)

: 2048

Compression ratio, (apa) : 20.2 : 1 Type of cylinder head : Mono block

Type of cylinder liners : Wet, replaceable

Type of combustion chamber : Re-entrant bowl

Arrangement of valves : Overhead

Valve clearance (Cold/hot):

- Inlet valve, (mm) : 0.40 / 0.30

- Exhaust valve, (mm) : 0.50 / 0.40

1.4 Fuel System: Type of fuel feed system : Gravity and forced feed

1.4.1 Fuel tank:

Capacity, (l) : 47.30

Location : Above clutch housing

Provision for draining of sediments/ water

: Provided

Material of fuel tank : Sheet metal

1.4.2 Water separator: Not provided

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1.4.3 Fuel feed pump:

Make : Bosch, India

Type : Plunger

Model/Group combination No. : FP / KSG 22AD 105, F 002 A50 040 (apa)

Provision of sediment bowl : Provided

Method of drive : Through camshaft of the FIP

Location : Mounted on fuel injection pump

1.4.4 Fuel filters:

Make : Bosch, India

Model/Group combination No. : F002 H20 117

Number : Two

Type of elements:

- Primary : Cloth

- Secondary : Paper

Capacity of final stage filter, (l) : 0.50

1.4.5 Fuel Injection pump:

Make : Bosch, India

Model/Group combination No. : F002A0Z748, PES3A85D320RS2000

Type : Inline, Plunger

Serial number : 75848534

Method of drive : Through timing gears

1.4.6 Fuel injectors:

Make : Bosch, India

Model/Group combination No. : F002C70 007758

Injector nozzle No. : DSLA144 P 1754

Type : Multi hole (five holes)

Manufacturer’s production pressure setting, (MPa)

: 25 +0.8 (250+8)

Injection timing : 7.5 ± 1 degree before TDC

Firing order : 1 - 3 - 2

1.4.7 Governor: Make : Bosch, India

Model/Group combination No. : RSV400…950A5C1605R

Type : Mechanical, centrifugal, variable speed

Rated engine speed, (rpm) : 1900

Governed range of engine speed, (rpm)

: 750 to 2175

1.5 Air Intake system:

1.5.1 Pre-cleaner

Make : PAI Automobile (apa)

Type : Centrifugal, cyclonic with transparent dust collector

Location : Above main air cleaner inlet tube, outside the bonnet

1.5.2 Air cleaner:

Make : PAI Automobile (apa)

Type : Oil bath with dry paper element

Location : On RHS of the engine, under the bonnet

Oil capacity, (l) : 0.60

Range of suction pressure at maximum power, (kPa)

: 2.4 to 2.5

Service schedule : After every 50 hours or earlier, if required in dusty condition.

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1.6 Exhaust: Type of silencer : Updraft, (Cylindrical)

Position of silencer outlet with respect to SIP, (mm) : - Upward : 860

- Longitudinal : 1565

- Lateral : 175 (RHS)

Range of exhaust gas pressure at maximum power, (kPa)

: 2.9 to 3.6

Provision of spark arresting device : None

Provision against entry of rain water

: A bend is provided at the outlet of silencer

1.7 Lubricating system: Type : Forced feed-cum-splash

Oil sump capacity, (l) : 5.0

Total lub oil capacity, (l) : 5.50

Oil change period : First change after 250 hours and subsequently after every 250 hours of operation.

Cooling device, (if any) : None

1.7.1 Filters: Make : Mahindra

Type : Full flow, spin on throw away replaceable paper element

Number : One

Capacity, (l) : 0.50

1.7.2 Pump: Make : Precision Autowares (apa)

Type : Eccentric, lobe (Internal gear type)

Method of drive : Through cam shaft of engine

Pressure release setting, (kPa) : 206.0 to 241.3

Minimum permissible pressure, (kPa)

: 100

1.8 Cooling system: Type : Forced circulation of coolant

Coolant as recommended : Mobile coolz coolant additive

Coolant water ratio : 0.05:1

Details of Pump

: Centrifugal, semi-open impeller of 82.4 mm diameter having 07 numbers of vanes, and driven through crankshaft pulley by a cogged ‘V’-belt common to alternator.

Details of fan

: Suction type having six numbers of plastic blades of 395 mm diameter and mounted on water pump shaft.

Means of temperature control : Thermostat

Bare radiator capacity, ( l )

: 1.80

Expansion flask capacity, ( l )

: 0.80

Total coolant capacity, ( l )

: 6.15

Radiator cap pressure, (kPa)

: 88

Method of drive : Mounted on water pump shaft

1.9 Starting System: Type : 12 V, DC, Electrical

Aid for cold starting : None

Any other device provided for easy starting.

: None

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1.10 Electrical System:

1.10.1 Battery: Make and Model : Exide & 95D31LMF

Type : Lead Acid

Capacity and rating : 12V,80 Ah at 20 hours discharge rate

Location : RHS of clutch housing in a separate metallic box.

1.10.2 Starter:

Make : Auto lek

Model : STM RV-1105

Type : Pre-engaging, solenoid operated

Capacity and rating : 12V & kW- Not available

Serial Number : Not Available

1.10.3 Generator: Make : Auto lek

Model : ALT 4005H

Type : Alternator

Serial number : Not Available

Output rating : 12V, 35 Ampere

Method of drive : Through water pump pulley by a cogged “V” belt.

1.10.4 Voltage regulator : In-built in alternator

1.10.5 Details of lights:

Description No. & capacity of bulbs

Height of the centre of beam above ground level,(mm)

Size of beam, (mm)

Distance between centre of the beam and outside edge of tractor at standard rear track setting, (mm)

Front Lights:

- Head lights 2, 12V, 60/55W 1040 130ϕ 480

- Parking lights 2, 12V, 5W 1290 40 × 60 145

- Turn Indicators-cum-hazard light

2, 12V, 21W 1290 75 x 60 95

Rear lights:

-Stop light 2, 12V, 21W 1255 45 x 65 185

-parking light 2, 12V, 5W 1255 40 x 65 145

- Turn Indicators-cum-hazard light

2, 12V, 21W 1255 40 x 65 100

Reflectors (Red) 2 1255 40 x 60 145

Registration plate light

In built in rear combination lamp assembly

Plough light 1, 12V, 55W 1360 110 ϕ 400

1.10.6

Main switch : Key turn type, having three positions viz: OFF,

Circuit ON and START

1.10.7 Light switch : Rotary type having four positions viz.

i) OFF

ii) Parking lights + Dash board lights

iii) Head lights (long beam) + (ii)

iv) Head lights (short beam) + (ii)

1.10.8 Horn :

Make : Minda

Type : 2B, Electromagnetically vibrator type

Location : Mounted on timing cover, under the bonnet

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1.10.9 Fuse box : Contains six number of fuses of following capacities :

Capacity 20A 15A 10A 05A

Number 02 01 01 02

1.10.10 Details of other electrical accessories:

1.10.10.1 Flasher Unit:

Make : Interface

Capacity:

- Turn signal : 12V, 21W x 2 + 2W x 1

- Hazard signal : 12V, 21W x 4 + 2W x 2

Flashes/Min. : 85

1.10.10.2 Starting safety switch : Not provided

1.10.10.3 Seven pin socket for

trailer lights

: Provided

1.11 Instrument panel details: i) Engine speed cum-cumulative run hour meter (0-25) x 100 rpm ii) Lubricating oil pressure indicator iii) Water temperature gauge (with colour zones) iv) Fuel level gauge (with colour zones).

v) Main switch (key-turn type) vi) Light switch (Rotary type)

vii) Hazard light switch

viii) Turn-cum-hazard indicator lights

ix) Battery charging warning indicator.

x) Head lamp (Long beam ) ‘ON’ indicator light

xi) Plough light switch

xii) Parking brake light indicator

xiii) Turn indicator switch

xiv) Horn push button

xv) Fuel shut-off knob

xvi) Hand accelerator lever

xvii) Steering control wheel

xviii) Mobile charging socket

xiv) Rear view mirror

1.12 Transmission System:

1.12.1 Clutch: Make : Valeo

Type : Single, dry friction plate, Diaphragm type

No. of friction plate, (s) : One

Size, OD/ID (mm)

: 279.9 / 170.4 ϕ

Method of operation: By depressing clutch pedal provided on LHS of operator’s seat.

1.12.2 Gear box:

Make : Mahindra

Type : Combination of sliding and constant mesh gears.

No. of speeds:

- Forward : 08

- Reverse : 02

Location of gear shifting levers

: Both levers are in front of operator’s seat

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Gear shifting pattern :

Gear selection lever

Range selection lever

Oil capacity, (l) : 35.0 (common with differential, rear axle, final drive, brake & hydraulic system)

Oil changing period : First change after 1000 hours and subsequent after every 1000 hours of operation.

1.12.3 Nominal Speed:

Movement

Gear No.

No of engine revolutions for one revolution of driving wheel

Nominal speed at rated engine speed when

fitted with 12.4-28 size

tyres of 590 mm radius index, (kmph)

Forward

L1 151.60 2.79

L2 88.82 4.75

L3 61.46 6.89

L4 43.58 9.72

H1 52.21 8.08

H2 30.58 13.82

H3 21.20 19.95

H4 15.00 28.18

Reverse LR 99.99 4.23

HR 34.53 12.24

1.12.4 Rear differential unit : Type : Crown wheel & bevel pinion with differential

unit, accommodated inside the differential housing.

Reduction through crown wheel & pinion

: 4.182:1 (46/11T)

Oil capacity, (l) : 35.0 (common with gearbox, final drive, brake, rear axle & hydraulic system)


Differential lock : Not provided

1.12.5 Rear axle & final drive:

Type : Bull gear and pinion type final reduction unit accommodated inside the differential housing.

Reduction through final drive : 3.583:1 (43T/12T)

Oil capacity of final drive, ( l ) : 35.0 (common with gearbox, differential, brake & hydraulic system)


1.13 Power lift (Hydraulic system):

Make : Mahindra

Type : Open centre, live, ADDC

No. and type of cylinder : One ,single acting Type of linkage lock for transport : Hydraulic, isolating valve in fully closed position

act as transport lock.

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1.13.1 Hydraulic pump:

Make : Rexroth

Type : Gear

Location & drive : RHS of engine, through timing gears.

No. & type of filters : Three

i) Wire mesh strainer at suction

ii) Full flow spin on paper element type on

LHS of engine. iii) Orifice filter on distributor. Hydraulic oil capacity, ( l ) : 35.0 (common with gearbox, differential, final

drive, rear axle & brake system) Oil change period : First change after 1000 hours and subsequent

after every 1000 hours of operation. Provision for external tapping : Provided

Details of control levers : i) Position control lever (black)

ii) Draft control lever (red)

iii) A knob on distributor

Method of draft sensing : Through top link

1.13.2 Three point linkage:

Sl. No.

Observations As per IS: 4468-

(Part-I) 1997 (Category I / II), (mm)

As measured,

(mm)

Remarks

I. Upper hitch points:

a) Dia of hitch pin hole

19.30 to 19.50 /

25.70 to 25.90 25.88

Conforms to

Cat. II

b) Width of ball 44.0 (max.) / 51.0 (max.) 50.60

Conforms to

Cat. II

II. Lower hitch points:

a) Dia of hitch pin hole

22.40 to 22.65/

28.70 to 29.00 28.94

Conforms to

Cat. II

b) Width of ball

34.8 to 35.0 /

44.8 to 45.0 44.8

Conforms to

Cat. II

III. Lateral distance from lower

hitch point to centre line of

tractor

359 / 435

364 Does not

conform

IV. Lateral movement of lower

hitch points

100 (min) /

125 (min) 125

Conforms to

Cat. I & II

V. Distance from end of power

take-off to centre of lower

hitch point (lower links in

horizontal position)

450 to 575 / 550 to 625 480 Conforms to

Cat. I

VI. Transport height 820 (min) / 950 (min) 900

Conforms to

Cat. I

VII. Power range (without force) 560(min) / 650 (min) 570

Conforms to

Cat. I

VIII. Leveling adjustment 100 (min) / 100 (min) 375

Conforms to

Cat. I & II

IX. Lower hitch point

clearance

100 (min) / 100 (min) 185

Conforms to

Cat. I & II

X. Lower hitch point height 200 (max) / 200 (max) 200

Conforms to

Cat. I & II

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1.13.3 Linkage geometry dimensions [Refer Fig.-1(a)]:

The following are dimensions observed, corresponding to 590 mm as tyre dynamic radius index:

Sl.

No. Parameter Notation

Dimension or

range, (mm)

Setting used during test, (mm)

1. Length of lower link A 675 675

2. Length of lift arm B 280 280

3. Length of lift rods

C 535 to 600 540

4. Length of top link D 520 to 720 595

5. Distance of lift rod connection point from pivot point of lower link.

E 340 340

6. Distance of lower link pivot point from rear wheel axis:

-Horizontally F 160, behind 160, behind

-Vertically G 140, below 140, below

7. Distance of upper link pivot point from rear wheel axis:

-Horizontally H 250, behind 250, behind

-Vertically J 250, above 250, above

8. Distance of lift arm pivot point from rear wheel axis:

-Horizontally K 25, behind 25, behind

-Vertically L 365, above 365, above

9. Height of lower hitch points relative to the rear wheel axis:

- In high position M 70 to 310 180, above

- In low position N -550 to -195 390, below

10. Height of lower link hitch points when locked in transport position

-- 180, above

Fig. 1 (a): DIMENSIONAL NOTATIONS FOR TABLE OF LINKAGE GEOMETRY

UPPER LINK

LOWER LINK

REAR WHEEL AXIS

GROUND LEVEL

REAR WHEEL AXIS

R

N

M

D

C

A

E

K B

H J

L

G

F

LIFT ARM LIFT ROD

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1.13.4 Drawbar:

1.13.4.1 Linkage Drawbar [Refer Fig.1(b)]:

Notation As per IS: 12953-1990,

(Cat.I) / (Cat.II), (mm)

As measured, (mm)

Remarks

A 683 1.5 / 825 1.5 683.0 Conforms to Cat. I

B 75 (min) / 75 (min) 75.0 Conforms to Cat. I & II

C 30 (min) / 30 (min) 35.4 Conforms to Cat. I & II

D 21.79 to 22.0 / 27.79 to 28.0 27.8 Conforms to Cat. II

E 39.0 (min) / 49.0 (min) 54.0 Conforms to Cat. I & II

F 12.0 (min) / 12.0 (min) 12.4 ----do----

G 15.0 (min) /15.0 (min) 15.7 ----do----

H 25 1 / 25 1 24.5 ----do----

J 80 1.5 / 80 1.5 80.0 ----do----

No. of holes

7 / 9 07 Conforms to Cat. I

Fig. 1 (b): DIMENSIONAL NOTATIONS FOR LINKAGE TYPE DRAWBAR

1.13.4.2 Swinging drawbar : Not provided

1.14 Power take-off shaft: Type : Type-I, Not independent

Method of engaging : By a hand lever provided on LHS of operator’s seat

No. of shaft,(s) : One

PTO speed corresponding to rated engine speed, (rpm)

: 543

Distance behind rear axle, (mm) : 355

Engine to PTO speed ratio : 3.500 : 1

Whether the PTO shaft is capable of transmitting full power of the engine.

: Yes

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1.14.1 Specifications of Power Take-Off Shaft: [See Fig. 2]

Specification As per

IS:4931-1995 (Type-I) As observed

Remarks

Nominal speed, (rpm)

54010

540 rpm of pto shaft corresponding to 1890 rpm of engine

Conforms

No. of splines 06 06 Conforms

Direction of rotation Clockwise Clockwise Conforms

Location The position of the centre of the end of PTO shaft shall be within 50 mm to right or left of the centre line of the tractor.

Centrally located Conforms

Dimensions, (mm) (See Fig. 2):

D 34.79 0. 06 34.73 Conforms

d 28.91 ± 0.05 28.74 Does not

conform

B 29.4 0.1 29.30 Conforms

A (optional) 8.3 ± 0.1 8.3 -do-

W 8.69 – 0.09 -0.16

8.6 -do-

a 7 7 -do-

b(optional) 25 ± 0.5 25.5 -do-

c 38 38 -do-

X 30o 30

o -do-

B 76 (min) 84 -do-

h 450 to 675 555 -do-

Fig. 2 : DIMENSIONAL NOTATIONS FOR TYPE-II POWER TAKE-OFF SHAFT

1.14.2 Power Take-off Master Shield : Not provided

1.15 Towing hitch:

1.15.1 Front: Not provided

1.15.2 Rear:

Type : Clevis

Location : At rear of transmission housing

Height above ground level, (mm):

-Maximum : 700

-Minimum : 350

-No. of positions : 14

-Type of adjustment : By changing the position of hitch & reversing the hitch on its mounting bracket.

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Distance of hitch point, (mm): -From rear wheel centre : 460

-From power take-off shaft end : 105

Dia of pin hole, (mm) : 32

Width of clevis, (mm) : 80

1.16 Steering: Make : Rane

Type : Mechanical, worm & roller having single drop arm.

Location : Above the clutch housing

Method of operation : Manually through steering control wheel.

Diameter of steering control wheel, (mm)

: 420

Steering oil capacity, (l) : 0.45

Lubricant change period : Change after every 500 hours of operations.

1.17 Brakes:

1.17.1 Service Brake: Make : Brakes India (apa)

Type : Mechanical, oil immersed disc brake

Location : On half axle shaft

No. of disc(s) : Three, (on each wheel side)

Area of liners, (cm2) : 715.68 (on each wheel side)

Material of liners : Non asbestos, (apa)

Method of operation : Mechanical, Individual or combined pedal operation by right foot.

1.17.2 Parking Brake:

Type : Toggle link mechanism

Location & method of operation : Service brake act as a parking brake when locked in position by a hand lever provided on RHS of the operators seat.

1.18 Wheel Equipment:

1.18.1 Steered Wheel(s) : Make : Apollo

Number(s) : Two

Type of tyre : Pneumatic, ribbed

Size : 6.00-16

Ply rating : 8

Maximum permissible loading capacity of each tyre at 196 kPa pressure, kgf

: 406 (apa)

Recommended inflation pressure, (kPa) : - For field work : 167

- For transport : 196

Track width, (mm) : 1240 (std.) & 1450

Method of changing track width : By reversing the wheel discs

Make & size of wheel rim : SSWL & 4.5 E x 16

1.18.2 Drive wheel(s):

Make : Goodyear

Number : Two

Type of tyre : Pneumatic, traction

Size : 12.4 – 28

Ply rating : 12

Maximum permissible loading capacity of each tyre at 110 kPa pressure, (kgf)

: 1148

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Recommended inflation pressure, (kPa): - For field work : 118

- For transport : 137

Track width, (mm) : 1350 (std.), 1450, 1550, 1590, 1690, 1800 and 1910

Method of changing track width : By reversing the wheel disc and by changing position of disc on offset rim lugs.

Make & size of wheel rim : WIL & W11 x 28

1.18.3 Wheel base, (mm) : 1870

Method of changing wheel base, if any, and range

: None

1.19 Operator’s seat:

Make : Polar (apa)

Type : Cushioned with back rest

Type of suspension : Two helical coil springs

Type of dampening : Hydraulic shock absorber

Range of adjustment of Operator’s seat (mm):

Vertical (back rest only) : Nil

Lateral : Nil

Longitudinal : ± 130

1.20 Provision for safety and comfort of operator:

1.20.1 Operator’s Seat :

Conformity with IS: 12343-1998 (Reaffirmed in 2014):

All parameters meets the minimum requirements of IS: 12343-1998, (Re-affirmed in

2014), except the following:

i) Length of seat.

ii) Longitudinal distance from SIP to center line of steering control wheel.

1.20.2 Conformity with IS: 6283 (Part-1) – 2006 (Re-affirmed in 2014) & IS: 6283 (Part-2)

– 2007 (Re-affirmed in 2014) :

Controls are identifiable with symbols as per IS: 6283 (Part-1) – 2006 (Re-affirmed in

2014) & IS: 6283 (Part-2) – 2007 (Re-affirmed in 2014), except the following:

i) Grease lubricant frequency and oil lubricant, type & frequency.

1.20.3 Conformity with IS:8133-1983 (Re-affirmed in 2014), except the following:

Location and movement of various controls meets the requirement of IS:8133-1983 (Re-

affirmed in 2014), except the following:

i) Safety against the accidental start of tractor is not provided.

ii) Engine stop lever does remain in the stop position without application of sustained manual effort.

iii) Differential lock has not been provided.

1.20.4 Conformity with IS: 12239 (Part-1)-1996 (Re-affirmed in October, 2017):

Meets the requirements of IS: 12239 (Part-1)-1996 (Re-affirmed in October, 2017),

except the following:

i) Width of foot step.

ii) Provision of spark arresting device in exhaust system.

1.20.5 Conformity with IS:12239 (Part-2)-1999 (Re-affirmed in October, 2017):

Meets the requirements of IS: 12239 (Part-2)-1999(Re-affirmed in October, 2017),

except the following:

i) PTO master shield has not been provided.

ii) Working clearance between draft control lever & mud guard has not been provided.

iii) The drive wheels are not guarded fully.

1.20.6 Conformity with IS: 14683 – 1999 (Re-affirmed in March, 2009):

Lighting meets the requirements of IS: 14683 – 1999.

1.20.7 Rear view mirror:

Rear view mirror has been provided.

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1.21 Labelling of tractor [As per IS:10273-1987 (Re-affirmed in March, 2009)]:

The labelling plate is riveted on inner side of LHS of mudguard provides the following information:

Name of Manufacturer : Mahindra & Mahindra Ltd., Farm equipment sector, India.

Make : Mahindra

Model : B 275 DI MKM

Year of manufacture : HH

Engine Serial Number : RHH2DBN8574

Chassis Serial Number : MBNAAADGLHR00024

Maximum PTO Power, kW : 24.3

Specific fuel consumption, g/kWh : 238

2.22 Ballast Mass, (kg):

Particulars As used during drawbar test

As used during field test (Dry land)

As used during Haulage test

Front C.I. weight 80 80 80

Water Nil Nil Nil

Rear

C.I. weight 148 148 148

Water 240 Nil Nil

Additional weight, if any Nil Nil Nil

1.22.1 Standard ballast, if any :

Particulars Front Rear

C.I. weight (Kg) 48.1 Kg & 37.2 Kg Nil

Location Below front axle & in front of radiator --

1.23 Masses:

Particulars Mass of the tractor without operator but with all the liquid reservoirs full, (kg)

Front Rear Total

i) With standard ballast 730 1040 1710

ii) With ballast as used during drawbar performance test.

805 1425 2230

iii) With ballast as used during dry land field test (other than rotavation operation)

NA NA NA

iv) As used during wet land cultivation NA NA NA

v) With ballast as used during haulage test with trailer hitch, canopy and drawbar.

805 1225 2030

1.24 Overall dimensions:

Condition Length, (mm)

Width, (mm)

Height, (mm) Ground Clearance,

(mm) with exhaust

pipe At steering

wheel

Without Ballast

3255 1680 2195 1645 315 (below front axle

ballast weight)

1.25 Number of external lubricating points: - Oiling : Nil

- Grease cups : 02

- Grease nipples : 17

1.26 Colour of tractor: - Chassis & Engine : Red

Sheet metal: -Bonnet : Red -Rim & Mudguard : Red

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2. FUEL AND LUBRICANTS

2.1 Fuel : The High-speed diesel oil supplied by M/s Indian Oil Corporation Limited having density of 0.836

g/cc at 15C was used.

2.2 Lubricants:

Sl. No. Particulars As recommended by the

manufacturer As used during the test

1. Engine & Air cleaner oil SAE 15W40 As recommended

2. Gear Box, differential, rear axle & final drive

MTRAC 30 Oil originally filled in the tractor was not changed

3. Hydraulic system MTRAC 30 -do-

4. Steering system SAE 140 --do--

5. Grease MP3 Lithium base As recommended

3. PTO PERFORMANCE TEST

Date(s) of test : 04.04.2018 & 05.04.2018

Tractor run at the Institute prior to start of PTO test (h)

: 5.5

Type of dynamometer bench : SAJ AG-250 Eddy current

3.1 The results of power take-off performance are tabulated in Table-1 and

graphically represented in Fig. 3, 4 and 5.

Table – 1

Power, (kW)

Speed (rpm) Fuel consumption Specific energy (kWh/l)

PTO Engine (l/h) (kg/h) Specific,

(kg/ kWh)

a) Maximum power – 2 hours test:

23.9 543 1901 7.22 6.03 0.252 3.31

22.7 543 1901 6.76 5.66 0.249 3.36*

b) Power at rated engine speed (1900 rpm):

23.9 543 1901 7.22 6.03 0.252 3.31

22.7 543 1901 6.76 5.66 0.249 3.36*

c) Power at standard power take-off speed (540 10):

23.9 543 1901 7.22 6.03 0.252 3.31

22.7 543 1901 6.76 5.66 0.249 3.36*

d) Varying loads at rated engine speed:

i) Torque corresponding to maximum power available at rated engine speed:

23.9 543 1901 7.22 6.03 0.252 3.31

ii) 85% of the torque obtained in (i):

20.9 559 1957 5.90 4.93 0.236 3.54

iii) 75% of the torque obtained in (ii) :

15.9 566 1981 4.58 3.83 0.241 3.47

iv) 50% of the torque obtained in (ii) :

10.7 571 1999 3.44 2.87 0.268 3.11

v) 25% of the torque obtained in (ii) :

5.5 586 2051 2.41 2.02 0.367 2.28

vi) Unloaded:

0.1 600 2100 1.52 1.27 12.700 0.07

e) Varying loads at standard PTO speed:

The maximum PTO power was observed at 543 rpm of PTO speed, which lies in the range of standard PTO speed of 540 ± 10 rpm. Hence this test was not conducted.

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Natural ambient High ambient

-No load maximum engine speed, (rpm) : 2100 2097

-Equivalent crankshaft torque at maximum power, (Nm)

: 120.1 114.0

-Maximum equivalent crankshaft torque, (Nm)

: 127.1 119.7

-Engine speed at maximum Equivalent crankshaft torque, (rpm)

: 1400 1449

- Backup torque, (%) : 5.8 5.0

Smoke level, maximum light absorption coefficient (per meter)

: 0.39 --

Range of atmospheric conditions:

- Temperature, (deg. C) : 26 to 27 42 to 44

- Pressure, (kPa) : 98.1 to 98.7 99.1 to 99.6

- Relative humidity, (%) : 58 to 63 15 to 25

Maximum temperatures (ºC):

Engine oil : 118 127

Coolant : 91 107

Fuel : 48 66

Air intake : 54 70

Exhaust gas : 674 671

Pressure at maximum power:

- Intake air, (kPa) : 2.4 to 2.5 2.5 to 2.6

- Exhaust gas,( kPa) : 2.9 to 3.6 3.5 to 3.9

Consumptions:

- Lub. Oil, (g/kWh) : -- 0.86

- Coolant , (% of total coolant capacity) : -- 2.44

4. DRAWBAR PERFORMANCE TEST

Date(s) of test : 22.12.2018, 23.12.2018 & 24.12.2018

Tractor run at the Institute prior to start of drawbar performance test, (h)

: 26.1

Type of track : Concrete

Height of drawbar, (mm):

- Without ballast : 600

-With ballast : 550

4.1 The results of drawbar performance test consisting of maximum power and pull with

ballast / with ballast and ten hours test are tabulated in Table – 2. The results of the tests

with ballast are also represented graphically in Fig. 6 & 7.

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5. POWER LIFT AND HYDRAULIC PUMP PERFORMANCE TEST

Date(s) of test : 04.05.2018 & 07.05.2018

Tractor run at the Institute prior to start of

hydraulic test, (h)

: 17.8

Pump speed at rated engine speed,(rpm) : 2394

5.1 Hydraulic power test:

Pump delivery rate at minimum pressure

and rated engine speed (l/min)

: 27.6

Maximum hydraulic power,(kW)

: 6.9

Pump delivery rate at maximum hydraulic

power, (l/min)

: 24.2

Pressure at maximum hydraulic power,

(MPa)

: 17.0

Sustained pressure of the open relief

Valve, (MPa)

: 20.5

Tapping point:

a) Relief valve test : External circuit

b) Pump performance test : External circuit

Temperature of hydraulic fluid, (C) : 60 to 65

5.2 Lifting capacity test:

Test Height of lower hitch point above ground in

down position, (mm)

Vertical Movement with lifting force, (mm)

Maximum corrected

force exerted

through full range, (kN)

Corresponding

pressure (MPa)

Moment about rear

axle, (kN-m)

Maximum tilt angle of mast from

vertical (degrees)

At hitch points

200 565 16.52 18.5 13.79 --

On the standard

frame 200 555 12.78 18.5 18.47 10.6

5.3 Maintenance of lift load:

Force applied at the frame, (kN)

: 11.50

Temperature of hydraulic fluid at the

start of test, (C)

: 60

Test data:

Elapsed Time, (minute) 5 10 15 20 25 30

Cumulative drop in height of lift, (mm)

00 02 03 05 08 10

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6. BRAKE TEST

6.1 Service brake:

6.1.1 Cold brake test:

Date of test: : 02.05.2018


Maximum attainable speed (kmph):

- Standard ballasted Tractor : 31.2

- Road Ballasted Tractor : 31.2

At maximum attainable speed

Standard Tractor

Braking device control, force (N) 501 398 296 193

Mean deceleration, (m/sec2) 3.42 3.18 2.91 2.50

Stopping distance, (m) 10.87 11.82 12.91 15.02

Road Ballasted

tractor

Braking device control force (N) 483 389 295 202

Mean deceleration, (m/sec2.) 3.40 3.14 2.88 2.50


At 25 kmph travel speed

Standard Tractor

Braking device control, force(N) 497 393 289 185



Road Ballasted

tractor

Braking device control force,(N) 474 381 288 194



6.1.2 Brake fade test:

At maximum attainable speed

Road Ballasted

tractor

Braking device control force(N) 453 373 293 213



At 25 kmph travel speed

Road Ballasted

tractor

Braking device control force,(N) 508 408 307 206



Max. deviation of tractor from its original course, (m)

: None

Abnormal vibration : None

The brakes were heated by : Self braking

6.2 Parking brake test:

Particulars

Parked on 18 percent

slope

Parked on 12 percent slope

with trailer of 1.77 tones

Facing Up Facing Down Facing Up Facing down

Braking device control force, (N) 205 220 120 150

Efficacy of parking brake -----------Effective -----------

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7. NOISE MEASUREMENT

7.1 Noise at bystander’s position:

Date of test : 20.04.18


Background noise level, dB (A) : 53.7

Atmospheric conditions:

Temperature, (C) : 35

Pressure, (kPa) : 98.1

Relative humidity, (%) : 20

Wind velocity, (m/s) : 2.7

TEST DATA:

S. No. G e a r Travelling speed before

acceleration, (kmph) Noise level, dB (A)

1. L1 2.40 77

2. L2 4.09 77

3. L3 5.85 77

4. L4 8.33 77

5. H1 6.91 77

6. H2 11.61 77

7. H3 16.66 78

8. H4 23.33 81

7.2 Noise at operator’s ear level:



Background noise level, dB (A) : 56.0

Atmospheric conditions:

Temperature, (C) : 24

Pressure, (kPa) : 99.4

Relative humidity, (%) : 22

Wind velocity, (m/s) : 1.6

Test data:

Gear Drawbar pull at which the tractor

develops the max. noise level, (kN) Corresponding travelling

speed, (kmph) Noise level, dB (A)

L1 9.98 to 14.63 2.88 to 2.58 88

L2 14.43 to 14.70 4.47 to 4.35 91

L3 11.79 to 12.06 6.61 to 6.56 93

L4 8.32 to 8.37 9.69 to 9.45 93

H1* 9.78 to 9.89 7.95 to 7.94 92

*Gear corresponds to the nominal travelling speed nearest to 7.5 kmph.

8. AIR CLEANER OIL PULL OVER TEST


Atmospheric conditions

Temperature, (⁰C) : 32 to 44

Pressure, (kPa) : 96.8 to 97.3

Relative humidity, (%) : 12 to 32

Mass of oil before test, (g) : 518.91

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Sl.No. Position of tractor Loss of oil

(g) Oil pull

over (%) Engine oil pressure

i) Tractor parked on level ground *4.50 0.86 Normal

ii) Tractor tilted to 15 deg laterally with RHS up

*11.90 2.29 Normal

iii) Tractor tilted to 15 deg laterally with LHS up

0.60 0.12 Normal

iv) Tractor tilted to 15 deg longitudinally with front end up

*26.10 5.03 Normal

v) Tractor tilted to 15 deg longitudinally with rear end up

*3.00 0.57 Normal

*Remark: The oil pull over measured in these positions is higher than the tolerance limit

of 0.25% as per IS: 12207:2014

9. MECHANICAL VIBRATION MEASUREMENT


Type of test surface : Concrete

Sl. No.

Measuring points

Vibration, microns

At no load At load corresponding to 85% of max. pto power

HD VD HD VD

i) Foot rest Left 70 30 60 120*

Right 50 40 80 60

ii) Steering wheel 60 70 190* 70

iii) Seat Bottom 20 20 20 30

Back 10 10 20 20

iv) Mudguard Left 40 50 60 70

Right 30 20 60 100

v) Head light Left 80 70 180* 120*

Right 60 190* 100 100

vi) Battery base, centre 80 120* 290* 150*

vii) Tail light Left 50 40 90 70

Right 20 30 70 60

viii) Plough light 120* 70 190* 160*

ix) Gear shifting lever 10 10 30 30

x)

Accelerator lever Hand 90 60 40 90

Foot 40 60 70 90

xi) Brake pedal Left 10 40 60 70

Right 30 40 30 40

xii) Clutch pedal 80 40 40 60

xiii) Main hydraulic control lever 10 10 30 30

xiv) PTO engaging lever 60 10 30 20

xv) Differential lock pedal NA NA NA NA

* The amplitude of mechanical vibration is on higher side.

10. FIELD TEST

The major breakdowns were not observed in the field test during Initial Commercial Test of this tractor model as tested vide test report No. T- 727/1234/2010 (July, 2010). So as per the provision as laid down in Clause 7.2 of IS: 12207 – 2014, the field test during the batch testing of this tractor model was not conducted.

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11. HAULAGE TEST

Type of trailer: Two wheel

(Single axle)

Four wheel

(Double axle)

Gross mass of trailer, (ton) : 5.0 6.0

Height of trailer hitch above ground level, (mm) : 505 525

Gear used during the test for negotiating slopes upto 8%

: H-4 H-4

Average travel speed, (kmph) : 29.75 to 29.97 29.54 to 29.97

Average fuel consumption:

- (l/h) : 4.13 to 4.21 4.11 to 4.20

- (ml/km/ton) : 27.56 to 28.29 23.17 to 23.37

Average distance traveled per litre of fuel consumption, (km)

: 7.07 to 7.26 7.13 to 7.19

General observations:

Effectiveness of brakes : Effective Effective

Maneuverability of tractor-trailer combination : Satisfactory Satisfactory

12. COMPONENTS/ASSEMBLY INSPECTION

The engine and other assemblies were dismantled after 88.1 hours of tractor operation at this Institute.

12.1 Engine:

12.1.1 Cylinder bore:

Cylinder No.

Cylinder bore dia, (mm) Max. permissible

limit, (mm)

Top position Middle position Bottom position

Thrust side

Non-thrust side

Thrust side

Non-thrust side

Thrust side

Non-thrust side

1. 88.919 88.908 88.917 88.903 88.921 88.903 88.90 to

88.95

2. 88.915 88.901 88.916 88.900 88.919 88.897

3. 88.913 88.907 88.915 88.904 88.919 88.897

12.1.2 Piston:

Piston No.

Piston dia, (mm) Piston to cylinder liner clearance at skirt (mm) Top

(above top compression ring) At skirt

Thrust Side

Non-thrust side

Thrust side

Non-thrust side

As observed

Discard limit

1. 88.300 88.199 88.812 * 0.109 0.106 to

0.138

2. 88.329 88.242 88.805 * 0.114

3. 88.313 88.195 88.817 * 0.102

** Not measured due to piston design features.

12.1.3 Ring end gap:

Rings

Ring end gap, (mm) Maximum Permissible

end gap limit,(mm)

Cylinder No.1 Cylinder No. 2 Cylinder no.3 Top Middle Bottom Top Middle Bottom Top Middle Bottom

1st comp.

ring 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.30 0.25 2.50

2nd

comp. ring

0.45 0.50 0.50 0.50 0.50 0.45 0.45 0.50 0.50 2.50

Oil ring 0.35 0.40 0.35 0.35 0.35 0.30 0.35 0.40 0.35 2.00

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12.1.4 Ring side clearance:

12.1.5 Main bearings:

Bearing No.

Diametrical Clearance, (mm)

Crankshaft end Float, (mm)

Max. permissible clearance limit, (mm)

Diametrical clearance

Crankshaft end float

1. 0.075 to 0.093

0.11 0.20 0.60 2. 0.072 to 0.099

3. 0.072 to 0.106

4. 0.077 to 0.085

12.1.6 Big end bearings:

Bearing No.

Clearance, (mm) Max. permissible clearance limit, (mm)

Diametrical Axial Diametrical Axial

1. 0.106 to 0.113 0.25

0.20

0.75

2. 0.105 to 0.130 0.25 0.75

3. 0.123 to 0.124 0.25 0.75

12.1.7 Valve, guides and timing gears: Observation Any marked sign of overheating of valves : None

Pitting of seat/faces of valves : None

Any visual damage to the teeth of timing

gears

: None

Spring Rate, (N/mm): Intake : 19.61 to 20.89 Against the discard

limit of 14.0 N/ mm Exhaust : 20.10 to 20.59

Clearance between valve guide and valve stem, (mm): -Intake valve

: 0.072 to 0.073 Against the discard

limit of 0.20 mm for intake and exhaust valves respectively

-Exhaust valve : 0.092 to 0.096

12.2 Clutch: Any marked wear on clutch friction

plate(s)

: None

Condition of clutch release bearing : Normal

Condition of pilot bearing : Normal

Condition of diaphragm : Normal

Presence of oil in clutch housing : None

Any marks on fly wheel/pressure plate : None

Overall thickness of clutch plate,(mm) :

- Transmission : 8.31 to 8.41 Against discard limit of 5.3 mm

Height of lining over rivet head, (mm):

- Transmission : 3.26 to 3.49 Against discard limit of 0.2 mm

12.3 Transmission gears: Any visual damage, pitting & chipping of

any transmission gear teeth

: None

Backlash between crown wheel and Pinion, (mm)

: 0.18 Adjust when exceeds 0.38 mm

Rings Ring side clearance, (mm) Maximum Permissible

end gap limit,(mm) Piston-I Piston-II Piston-III

1st Compression ring --Tapered -- 0.30

2nd

Compression ring 0.073 0.075 0.072 0.30

Oil ring 0.040 0.042 0.041 0.20

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12.4 Brakes:

Description

Initial specified height of

brake lining, (mm)

Measured thickness of brake lining after test, (mm)

Measured depth of oil groove , (mm)

Minimum permissible depth of oil groove of brake lining, (mm)

Left 1.8 3.98 to 4.09 0.23 to 0.47 0.100

Right 1.1 3.98 to 4.12 0.41 to 0.54

12.5 Front axle:

Any marked wear of king pins : None

Any marked wear of kin pin bushes : None

Clearance between king pin and bushes

: 0.16 to 0.25 Against discard limit of 0.30 mm

Condition of thrust bearing : NA

Condition of bearings for stub axles : Normal

Condition of front axle seals and bearings

: Normal

Any visual damage, pitting & chipping of any front axle transmission gear teeth

: None

Condition of centre pin and bushes : Normal

Clearance between centre pin and bush, (mm)

: 0.04 to 0.05 Against discard limit of 0.30 mm

12.6 Steering system: Visual condition of the components of

complete steering assembly : Normal

13. ADJUSTMENTS, DEFECTS, BREAKDOWNS AND REPAIRS

Sl. No Adjustment/Defects/Breakdowns and Repairs Category of

breakdown

Tractor

run hours

-- ---------- None ------ -- --

14. COMPARISON OF SPECIFICATION AND PERFORMANCE CHARACTERISTICS OF

PREVIOUS SAMPLE (Test Report No. T- 727/1234/2010, July, 2010 & Supplementary Test

Report No.T- 1241/1768/2019, May, 2019) and present sample.

14.1 Specification: Previous sample Present sample

14.1.1 Tractor: (*

)

Manufacture by : M/s. Mahindra & Mahindra Limited,

(Farm Equipment Sector) Akurli Road, Kandivli

(E), MUMBAI – 400 101

Make : Mahindra Mahindra

Model : B-275 DI MKM B-275 DI MKM

14.1.2 Engine: (*

)

Make : Mahindra Mahindra

Model : MDI 1895 3A MDI 1895 3A

Bore/Stroke, (mm) : 88.9 / 110 (apa) 88.9 / 110 (apa)

Specified cubic capacity, (cc)

: 2048 2048

Rated engine speed, (rpm)

: 1900 1900

14.1.2.1 Fuel system: (**

)

Make & model of fuel feed pump

: Bosch, India & FP/KS22AD62, 9440030029

Bosch, India & FP/KS22AD62, 9440030029

Make & model of fuel filters

: Bosch, India & F002H20117

Bosch, India & F002H20117

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Previous sample Present sample

Make and model of fuel injection pump

: Bosch, India & E040236200, F002A0Z748

Bosch, India & E040236200, F002A0Z748

Make & model of fuel injectors

: Bosch, India & F002C7Z1424 DSLA144P1754

Bosch, India & F002C7Z142 DSLA144P1754

Type of injector : Multi hole (Five holes) Multi hole (Five holes)

Manufacturer’s production pressure setting, (MPa)

: 25 + 0.8 25 + 0.8

Injection timing : 7.5 ± 1 degree before TDC

7.5 ± 1 degree before TDC

Make & model of governor

: Bosch, India & RSV400…950A5C1605R.

Bosch, India & RSV400…950A5C1605R

14.1.2.2 Cooling system: (**

)

Bare radiator capacity, (l)

: 1.80 1.80

Total coolant capacity, (l) : 6.15 6.15

14.1.2.3 Lubricating system: (**

)

Total lubricating oil capacity, ( l )

: 5.65 5.50

14.1.3 Transmission: (*

)

14.1.3.1 Clutch:

Type of clutch plate : Diaphragm, Single dry friction plate

Size, (mm),(OD/ID):

- Main transmission : 280 / 170 ϕ 280.9 / 170.4 ϕ

14.1.3.2 Gear Box:

No. of speeds:

- Forward : 08 08

- Reverse : 02 02

Range of speed, (kmph) : - Forward : 2.79 to 28.30 2.79 to 28.18

- Reverse : 4.23 to 12.34 4.23 to 12.24

14.1.4 Service Brake: (**

)

Type : Mechanical dry disc Oil immersed brake

No. of friction disc : Two (on each wheel side)

Three, (on each wheel side)

Area of liners, (cm2) : 604.97

(on each wheel side) 715.68

(on each wheel side)

14.1.5 Wheel equipment: (*

)

Make & Size of tyres :

- Front : 6.00-16, 8 PR 6.00-16, 8 PR

- Rear : 12.4-28, 12 PR 12.4-28, 12 PR

Standard Track width, (mm):

- Front : 1220 1250

- Rear : 1360 1350

14.1.5.1 Wheel base, (mm) (*

) : 1875 1870

14.1.6 Overall dimensions, (mm): (*

)

- Length : 3290 3255

- Width : 1675 1680

- Height (at steering wheel)

: 2200 2195

- Ground clearance, (mm) (below front axle ballast weight)

: 315

315

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14.1.7 Operational mass, (kg), (standard ballast) : (*

)

- Front : 720 730

- Rear : 1110 1040

- Total : 1830 1770

14.1.8 Conformity with following IS:

i) Guide lines for declaration of power and specific fuel consumption and labelling of agricultural tractors (First revision) [IS10273: 1987 (Reaffirmed 2014)]

: Conformed Conforms

ii) Agricultural tractors - Rear mounted power take-off - Types 1, 2 and 3 (third revision) [IS:4931-1995 (Reaffirmed 2014)]

: Did not

Conform

Does not

conform

iii) Agricultural wheeled tractors - Three-point linkage: Part 2 Category 1N (Narrow Hitch) (Third Revision) [IS 4468 (Part-2):1993/ ISO 730-2:1979 (Reaffirmed 2014)]

: Conformed Does not

conform

iv) Drawbar for agricultural tractors – Link type [IS 12953:1990 (Reaffirmed October, 2017)]


v) Agricultural tractors - Operator’s seat technical requirement [IS 12343 –1998 (First revision) (Reaffirmed 2014)]

: Did not

Conform

Does not

conform

vii) Guide for safety & comfort of operator of agricultural tractors: Part 1 General requirements (first revision): [IS12239 (PT-1) 1996/ISO 4254-1:1989 (Reaffirmed October, 2017)]

: Did not

conform

Does not

conform

viii) Tractors and machinery for agriculture and forestry – Technical means for ensuring safety Part 2: Tractors (first revision) (IS 12239 (PT-2) 1999) (Reaffirmed 2014)]

: Did not

conform

Does not

conform

ix) Guide lines for location and operation of operator controls on agricultural tractors and machinery (first revision) IS: 8133-1983 (Reaffirmed 2014)]

: Did not

conform

Does not

conform

x) Tractors and machinery for agriculture and forestry, powered lawn and garden equipment - Symbols for operator controls and other displays Part 2 Symbols for agricultural tractors and machinery [IS:6283 (Part-1)- 2006 and IS: 6283 (Part-2)-2007 (Reaffirmed 2014)]


14.2 Performance Characteristics:

14.2.1 PTO Performance: (*

)

Maximum Power, (kW) : 24.2 23.9

Power at Rated engine speed,(kW) : 24.1 23.9

Specific fuel consumption corresponding to maximum power, (g/kWh)

: 234 252

Maximum equivalent crankshaft torque,(Nm) : 131.5 127.1

Back up torque, (%) : 10.9 5.8

Maximum temperatures (degree): - Engine oil : 96 127

- Coolant 105 107

- Fuel : 60 66

- Air intake : 53 70

- Exhaust gas : 615 671

- Lub oil consumption, (g/kWh) : 1.09 0.86

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14.2.2 Drawbar performance : (*

) Previous

sample

Present

sample

Maximum power with standard ballasted tractor, (kW)

: 21.3 22.5

Maximum pull with standard ballasted Tractor, (kN)

: 13.63 14.75

Maximum transmission oil temperature (deg. C)

: 77 61

14.2.3 Hydraulic performance: (*

)

Hydraulic pump discharge at minimum pressure and rated engine speed, (l/min.)

: 30.5 27.6

Maximum hydraulic power, (kW) : 4.3 6.9

Sustained pressure of the open relief valve, (MPa)

: 17.5 20.5

Maximum lifting capacity, (kN):

- At the hitch point : 11.51 16.52

- At the standard frame : 8.94 12.78

Total drop in height of lift during load maintenance test, (mm)

: 144 10

14.2.4 Brake performance test at 25 kmph speed (max).: (*

)


Parameter Cold Hot Cold Hot

Maximum Stopping distance, (m) 7.20 7.90 7.68 7.74

Maximum force exerted on the brake Pedal effort required to achieve deceleration of 2.5 m/sq sec, (N)

:

172 to 185 194 to 206

Weather parking brake is effective at a force of 600N at foot pedal (s) or 400 N at hand lever

:

Effective Effective

14.2.5 Noise measurement: (*

)

- Maximum noise at bystanders position, dB(A)

: 83 81

- Maximum noise at operator’s ear level, dB(A)

: 94 93

14.2.6 Mechanical vibration: (*

)

Maximum amplitude of vibration at (microns):

- Foot rest – LHS & RHS : 140 & 100 120 & 80

- Steering wheel : 240 190

-Driver’s seat, (driver in seat) : 160 30

14.2.7 Air Cleaner oil Pull over test (%): (*

) 0.67 5.03

14.2.8 Haulage Test: (*

) Two

wheel

trailer

Four

wheel

trailer

Two

wheel

trailer

Four

wheel

trailer

-Gross mass of trailer, (ton) : 5.0 6.0 5.0 6.0 - Average speed, (kmph) : 29.28

to 29.41

29.28 to

29.81

29.75 to

29.97

29.54 to

29.97 -Average distance traveled per litre of fuel

consumed, (km) : 7.79

to 7.88

7.97 to

8.07

7.07 to

7.26

7.13 to

7.19 - Average fuel consumption, (cc/km/ton) : 25.4

to 25.7

20.7 to

20.9

27.56 to

28.29

23.17 to

23.37

Remark- (*

) Data

was taken from commercial batch test report no. T- 727/1234/2010, (July, 2010).

(**

) Data

was taken from supplementary test report no. T-1241/1768/2019, (May, 2019).

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14.3 Qualifying performance (comparable limit) for batch model in comparison to

ICT model (please refer Clause 7.6 of IS: 12207-2014):

S.

No.

Characteristic Requirements

as per IS: 12207-2014

As observed Whether

meets

the

require-

ment

(Yes/No)

Column 4 of

Table-1

Clause 7.6 Previous

sample

Present

sample

14.3.1 Drawbar performance:

a) Maximum drawbar pull with ballast corresponding to 15 percent wheel slip, (kN)

Minimum 65% of static mass with

ballast

The performance

shall be within 7.5%

of ICT or limit

specified under

Column 3 whichever is

higher

21.89 18.49 No

b) Maximum drawbar pull with standard ballast corresponding to 15 percent wheel slip, (kN)

Minimum 65% of static mass of tractor without

ballast

13.63 14.75

Yes

c) Maximum drawbar power with standard ballast, (kW)

Minimum 80 % of PTO power as referred in Sl No. i) a) of PTO performance in case of tractors having total static mass > 1500 kg Minimum 75 % of PTO power as referred in Sl No. i) a) of PTO performance in case of light weight tractors having 1500 kg total static mass of tractor Minimum 75 % of the engine power as referred in Sl No. i) a) of engine performance in case of tractors which do not have a PTO shaft.

21.3

22.5

Yes

d) Maximum transmission oil temperature (

oC)

The declared value should not exceed the maximum value specified by oil company

77

61 Yes

14.3.2 Hydraulic performance:

a) Maximum lifting capacity throughout the range of lift, (kN):

1) At hitch points [Tolerance of minus 10%]

The performance

shall be within 7.5%

of ICT or limit

specified under

Column 3 whichever is

higher

11.51 16.52 No

2) With the standard frame

The lift capacity should at least be 24 kg/PTO kW. And it should be 21.5 kg/engine kW where the tractor is not provided with a PTO shaft

8.94

12.78 No

b) Maximum drop in the height of the point of application of the force after each 5 minutes interval for a total duration of 30 minute, (mm)

The observed value should not exceed 50 mm

144 10

Yes

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14.4 Salient Observations:

14.4.1 Laboratory test:


i) The backup torque was 10.9 %. i) The backup torque is only 5.8%.

ii) The specific fuel consumption corresponding to maximum power was

recorded as 234 g/kWh against the

declaration of 238 g/kWh.

ii) The specific fuel consumption corresponding to maximum power was

recorded as 252 g/kWh against the

declaration of 238 g/kWh, which is not within the permissible limit and hence, it does not meet the non – evaluative requirement of IS: 12207-2014. This should be looked into for necessary corrective action.

iii) The maximum equivalent crankshaft

torque was recorded as 131.5 N-m

against the declaration of 140 N-m, which meets the requirement of IS: 12207-2008 with regard to tolerance limit.

iv) The maximum equivalent crankshaft

torque was recorded as 127.1 N-m

against the declaration of 140.0 N-m, which is not within the permissible limit and hence, it does not meet the non – evaluative requirement of IS: 12207-2014. This should be looked into for necessary corrective action.

14.4.2 Drawbar Performance Test:

i) Maximum drawbar pull with and without ballast corresponding to 15 percent wheel slip, (kN) was recorded

as 21.89 & 13.63 kN respectively against the minimum requirement of

17.08 & 13.63 kN respectively, which meet the minimum requirement of IS: 12207-2009.

i) Maximum drawbar pull with and without ballast corresponding to 15 percent wheel slip, (kN) was recorded

as 18.49 & 14.75 kN respectively against the minimum requirement of


ii) During drawbar performance the tyre creeping over rim of LHS & RHS tyre was observed 70 & 60 mm respectively, which is on higher side.

ii) During drawbar performance test the tyre creeping over rim of LHS & RHS tyre were observed 25 & 20 mm respectively, which is on higher side.

14.4.3 Hydraulic Performance Test:

i) Maximum lifting capacity at hitch point and standard frame was recorded

11.51 & 8.94 kN respectively against

the declaration of 12.00 & 7.80 kN

respectively, which meet the minimum requirement of IS: 12207-2008.

i) Maximum lifting capacity at hitch point and on the standard frame was

recorded 16.52 & 12.78 kN respectively against the declaration of


ii) Maximum drop in the height during maintenance of lift load test was

recorded as 144 mm against the maximum requirement of 50 mm. Which does not meet the requirement of IS: 12207-2009.

ii) Maximum drop in the height during maintenance of lift load test was

recorded as 10 mm against the maximum requirement of 50 mm, which meet the minimum requirement of IS: 12207-2014.

14.5 Adequacy of literature:

i) The following literature was supplied with the tractor for reference during the test.

a) Operator’s manual a) Operator’s manual

b) Workshop manual b) Workshop manual

c) Parts catalogue c) Parts catalogue

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15. SUMMARY OF OBSERVATIONS, COMMENTS & RECOMMENDATIONS

15.1 Evaluative (mandatory) / Non-evaluation (Non-mandatory) parameter applicable for

qualifying Minimum Performance criteria as per Clause-4 (Table-1) of IS: 12207-2014 for

acceptance of the tractor for the purpose of subsidies/NABARD financing are

summarized as under:

S. No.

Characteristic

Category

(Evaluative / Non

Evaluative)

Requirements

as per IS: 12207-2014

Values declared by the applicant

(D)/ Requireme

nt (R)

As observed

Whether meets the

requirements (Yes/No.)

1 2 3 4 5 6 7

15.1.1 PTO Performance :

a) Maximum power under 2 hours test, (kW ) (Natural ambient condition)

Evaluative

Declared value to be achieved with a tolerance of: -5 / +10% for PTO power >26 kW. –7.5/+10%

for PTO power 26 kW or-5 / +10% for Engine power >26 kW. –7.5/+10% for

Engine power 26 kW

24.3 (D) 23.9 Yes

b) Power at rated engine speed, (Kw)

Non Evaluative

-do- 24.3 (D)

23.9 Yes

c) Specific fuel consumption corresponding to maximum power, (g/kWh)

Non

Evaluative

+ 5% 238 (D) 252 No

d) Maximum equivalent crankshaft torque, (Nm)

Non Evaluative

8%

140.0 (D) 127.1 No

e) Back-up torque, percent

Non Evaluative

10 percent, minimum 10 (R) 5.8 No

f) Maximum operating temperature (OC)

1) Engine oil Non Evaluative

The declared value should not exceed the max. value specified by the oil company and the observed value under high ambient condition should not exceed the declaration.

130 (D) 127

Yes

2) Coolant (liquid)

Evaluative The declared value should not exceed the boiling temperature of coolant under the pressurized or otherwise and the observed value under high ambient condition should not exceed the declaration.

112 (D)

107

Yes

g) Engine oil consumption, (g/kWh)

Evaluative Not exceeding 1% of SFC at max. power under High ambient conditions

2.49 (R) 0.86 Yes

h) Smoke level Evaluative Maximum light absorption coefficient of 3.25 per metre or equivalent BOSCH No. 5.2 or 75 Hatridge value (As per CMVR)

3.25 per metre (R)

0.39 per

metre

Yes

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1 2 3 4 5 6 7

15.1.2 Drawbar performance :

a) Maximum drawbar pull with ballast corresponding to 15 percent wheel slip, (kN)

Non

Evaluative

Minimum 65% of static mass with

ballast

14.07 (D)

18.49

Yes 14.21 (R)

b) Maximum drawbar pull without ballast corresponding to 15 percent wheel slip, (kN)

Evaluative

Minimum 65% of static mass of tractor

without ballast

11.09 (D)

14.75

Yes 11.28 (R)

c) Maximum drawbar power without ballast, (kW).

Evaluative

Minimum 80 % of PTO power as referred in Sl No. i) a) of PTO performance in case of tractors having total static mass > 1500 kg

Minimum 75 % of PTO power as referred in Sl No. i) a) of PTO performance in case of light weight tractors having 1500 kg total static mass of tractor Minimum 75 % of the engine power as referred in Sl No. i) a) of engine performance in case of tractors which do not have a PTO shaft.

19.4 (D)

22.5

Yes 19.1(R)

d) Maximum transmission oil temperature (

oC)

Non

Evaluative

The declared value should not exceed the maximum value specified by oil company

110(D)

61

Yes

15.1.3 Power lift and hydraulic pump performance :

a) Maximum lifting capacity throughout the range of lift, (kN):

1) At hitch points Non Evaluative

[Tolerance of minus 10%]

12.00 (D) 16.52 Yes

2) With the standard frame

Evaluative The lift capacity should at least be 24 kg/PTO kW and it should be 21.5 kg/engine kW where the tractor is not provided with a PTO shaft

7.80 (D) 12.78 Yes 5.63 (R)

b) Maximum drop in the height of the point of application of the force after each 5 minutes interval for a total duration of 30 minute, (mm)

Non Evaluative

The observed value should not exceed 50 mm

50 (D)

10

Yes

15.1.4 Brake performance at 25 kmph:

a) Maximum stopping distance at a force, equal to or less than 600 N on brake pedal with road ballast, (m):

1) Cold brake Evaluative 10 10 (R) 7.68 Yes

2) Hot brake Evaluative 10 10 (R) 7.74 Yes

b) Maximum force exerted on the brake pedal to achieve a deceleration of 2.5 m/s

2 (N)

Evaluative

600

600 (R)

194 to

213

Yes

c) Whether parking brake is effective at a force of 600 N at foot pedal(s) or 400 N at hand lever

Evaluative Yes / No Yes (R) Yes Yes

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1 2 3 4 5 6 7

15.1.5 Noise measurement :

a) Maximum ambient noise emitted by the tractor, dB(A)

Evaluative As per CMVR

88 (R) 81

Yes

b) Maximum noise at operator’s ear level, dB(A)

Evaluative As per CMVR

96 (R) 93

Yes

15.1.6 Amplitude of mechanical vibrations at :

1) Left foot rest

Non Evaluative

100 microns (max)

100 (R) 120 No

2) Right foot rest 100 (R) 80 Yes 3) Seat (with driver

seated) 100 (R) 30 Yes

4) Steering control wheel

100 (R) 190 No

15.1.7 Air cleaner pull

over (%)

Non Evaluative

0.25% (Max) 0.25 % 0.50 No

15.1.8 Haulage requirements :

a) Gross mass of the trailers, (tones):

1) Two wheel Non Evaluative

As specified by the manufacturer

5.0 (D) 5.0 Yes

2) Four wheel 6.0 (D) 6.0 Yes

b) Distance travelled / litre of fuel consumption, (km/l):

1) Two wheel

Non Evaluative

----do-- 6.0 to

7.0 (D)

7.07 to

7.26 No

2) Four wheel ----do-- 6.0 to

7.0 (D)

7.13 to

7.19 No

c) Fuel consumption (ml/km/ton):

1) Two wheel

Non Evaluative

----do-- 35.0 to

45.0 (D)

27.56 to

28.29

Yes

2) Four wheel ----do-- 35.0 to

45.0 (D)

23.17 to

23.37

Yes

15.1.9 Safety features : a) Guards against

moving and hot parts Evaluative As per CMVR

---

Meet the requirements

Yes

b) Lighting arrangement Evaluative As per CMVR ---

Meet the requirements

Yes

c) Seating requirements (Tractors having more than 1150 mm rear track width)

Non Evaluative

Should meet the requirements of IS: 12343 (As amended from time to time)

--- Does not meet

the requirements No

d) Technical requirements for PTO shaft

Non Evaluative

Should meet the requirements of IS: 4931 (As amended from time to time)

--- Does not meet

the requirements No

e) Dimensions of three point linkage

Non Evaluative

Should meet the requirements of IS: 4468 (Part-I) (As amended from time to time)

--- Does not meet

the requirements No

f) Specifications of linkage drawbar

Non Evaluative

Should meet the requirements of IS 12953 and IS 12362 (Part 3) (As amended from time to time)

--- Meet the

requirements Yes

Specifications of swinging drawbar

-do- ---

Not Provided

--

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1 2 3 4 5 6 7

15.1.10 Labelling of tractors (Provision of labeling plate):

1) Make Evaluative Should conform

to the requirements of CMVR along-with

declared value of PTO HP

-- MAHINDRA Yes 2) Model Evaluative -- B 275 DI MKM Yes 3) Year of

manufacture Evaluative -- HH Yes

4) Engine number

Evaluative -- RHH2DBN8574 Yes

5) Chassis number

Evaluative -- MBNAAADGLHRH

00024

Yes

6) Declaration of PTO power, (kW) Evaluative --

24.3 Yes

15.1.11 Discard limit for:

(a) Cylinder bore diameter, (mm)

Evaluative To be

specified by Manufacturer

88.90 to

88.95

88.90 to 88.92

Yes

(b) Clearance between piston & cylinder liner at skirt, (mm)

Non Evaluative

0.106 to

0.138

0.102 to 0.114

Yes

(c) Ring end gap (mm):

- Top comp. ring.

Evaluative

-do- 2.5 0.25 to 0.30

Yes

- 2nd

comp. ring.

-do- 2.5

0.45 to 0.50

Yes

- Oil ring. -do- 2.0 0.35 to 0.40

Yes

(d) Ring groove clearance (mm):

- Top comp. ring.

Evaluative

-do- 0.30

Tapper face

--

- 2nd

comp. ring.

-do- 0.30

0.07 to 0.08

Yes

- Oil ring. -do- 0.20

0.04 to 0.42

Yes

(e) Clearance of main bearings (mm):

- Diametrical clearance

Evaluative

-do- 0.20 0.07 to 0.11

Yes

- Crankshaft end float

Evaluative 0.60 0.11

Yes

(f) Clearance of big end bearings, (mm):

- Diametrical Evaluative -do-

0.20 0.11 to 0.13

Yes

- Axial Evaluative -do- 0.75 0.25 Yes

(g) Clearance between king pin and bush, (mm)

Non Evaluative

-do- 0.30

0.16 to 0.25

Yes

(h) Clearance between center pin and bush, (mm)

Non Evaluative

-do- 0.30

0.04 to 0.05

Yes

15.1.12 Literature (Submission to test agency):

(a) Operator manual Evaluative Provided/

Not Provided As per

relevant IS- 8132

Provided Yes

(b) Parts Catalogue Evaluative Provided/

Not Provided Provided Yes

(c) Workshop/

Service manual Evaluative

Provided/ Not Provided

Provided Yes

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15.1.13 CATEGORY OF BREAKDOWNS / DEFECTS:

S. No.

Category of

Breakdown

Category

(Evaluative

/ Non

Evaluative)

Requirements

as per IS: 12207-2014

As observed

Whether

meets the

requireme

nt

(Yes/No.)

1. Critical breakdown Evaluative No critical breakdown None Yes

2. Major breakdowns Evaluative Not more than two and neither of them should be repetitive in nature.

None Yes

3. Minor breakdowns Evaluative Not more than five and frequency of each

should not be more than two.

None Yes

4. Total breakdowns Evaluative In no case, the total number of breakdowns should exceed five, that is, (2 major + 3 minor) or

5 minor breakdowns

None Yes

15.2 Optional requirements as per Clause-4 (Table-2) of IS:12207-2014:

S. No. Characteristic

Requirements

as per IS: 12207-2014

As observed

Whether meets

the requirements

(Yes/No.) 1. Fitment of ROPS With a provision for

fitment of ROPS. Not provided No

If ROPS fitted it should meet the requirement of IS: 11821-1992.

ROPS not fitted Not applicable

2. Accessories Trailer hitch, front tow hook may be provided.

Provided Yes

15.3 Salient Observations:

15.3.1 Laboratory tests:

15.3.1.1 PTO Performance:

i) The maximum power was recorded as 24.2 & 23.9 kW in case of previous &

present sample respectively against the declaration of 24.3 kW, which meets the requirement of IS: 12207-2014 with regard to tolerance.

ii) The specific fuel consumption corresponding to maximum power in case of

previous and present sample was measured as 234 & 252 g/kWh respectively

against the declaration of 238 g/kWh, which does not meet the requirement of IS: 12207-2014 with regard to tolerance. This should be looked into for necessary corrective action.

iii) The maximum equivalent crankshaft torque in case of previous and present

sample was measured as 131.5 & 127.1 N-m respectively against the

declaration of 140.0 N-m, which does not meets requirement of IS: 12207-

2014 with regard to tolerance limit in case of present sample . This should be looked into for necessary corrective action.

iv) The backup torque was observed as 10.9 & 5.8 % in case of previous and present sample, which does not meet the requirement of IS: 12207-2014 with regard to tolerance. This should be looked into for necessary corrective action.

v) The drop in maximum PTO power was observed as 5.0 % between natural and high ambient condition, which is considered on higher side. This should be looked into for necessary corrective action.

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15.3.1.2 Drawbar Performance:

During 10 hour drawbar test, the creeping of LHS & RHS rear tyre over the rims

was observed as 25 mm & 20 mm respectively, which was considered on higher side. This may be looked into for necessary corrective action.

15.3.1.2.1 The maximum drawbar pull under ballasted condition was observed as 21.89 &

18.49 kN in case of previous & present sample respectively which is less than 7.5 % when compared with the performance of it’s previous sample and not meeting the qualifying performance criteria for present sample as per Clause 7.6 of IS: 12207-2014.

15.3.1.3 Hydraulic performance:

The moment about rear axle at lower hitch and with standard frame was

calculated as 13.79 & 18.47 kN-m respectively, whereas, the moment about front

axle was calculated as 13.39 kN-m under unballasted condition. The moment about rear axle at standard frame is on higher side as compared to the moment about front axle under unballasted condition. It is, therefore, recommended that the lifting capacity of the hydraulic system may be reduced suitably or ballast recommendation may be reviewed to avoid the front lifting of the tractor.

15.3.1.3.1 i) Maximum lifting capacity throughout the range of lift at hitch point in case of

previous and present sample was recorded as 11.51 & 16.52 kN respectively which is more than 7.5 % when compared with the performance of it’s previous sample and not meeting the qualifying performance criteria for present sample as per Clause 7.6 of IS: 12207-2014. This should be looked into.

ii) Maximum lifting capacity throughout the range of lift at standard frame in

case of previous and present sample was recorded as 8.94 & 12.78 kN respectively which is more than 7.5 % when compared with the performance of it’s previous sample and not meeting the qualifying performance criteria for present sample as per Clause 7.6 of IS: 12207-2014. This should be looked into.

15.3.1.4 Air cleaner oil pull over test:

Maximum oil consumption during air cleaner oil pull over test was measured as

5.03 % against the maximum requirement of 0.25 % and hence does not meet the requirement of IS: 12207-2014. This should be looked into for necessary corrective action.

15.3.1.5 Mechanical Vibration:

The amplitude of mechanical vibration on various assemblies marked as (*) in Chapter-9 of this test report are on higher side especially at the steering, left foot rest and control wheel. This calls for dampening down of vibrations to improve the operational comfort and service life of components.

15.3.1.6 Three point linkage:

i) The lateral distance from lower hitch point to centre line of tractor does not meets the requirement of IS: 4468 (Part-1)-1997. This should be looked into for necessary corrective action.

ii) Some of the parameters conform to Cat. I and some of them conform to Cat. II. Keeping in view the spirit of standardization, necessary improvement may be incorporated.

15.3.1.7 Power take off Shaft:

The dimension “dϕ” of Power Take-Off Shaft does not meet the requirements of IS: 4931-1995. This should be looked into for necessary corrective action.

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15.3.1.8 PTO Master shield:

PTO master shield has not provided on tractor as per the requirements of IS: 4931-1995. This should be looked into.

15.3.1.9 Operator’s work place:

Operator’s work place meets the requirements of IS: 12239 (part-I) 1996 (Reaffirmed in 2014), except the, width of step, working clearance around the draft control lever & mudguard and provision of spark arresting device in the exhaust system.

15.3.1.10 Location and operation of Controls:

Location and movement of various controls meets the requirement of IS: 8133-1983 (Re-affirmed in 2014), except the following:

i) Safety switch while starting the engine is not provided.

ii) Control for stop the engine is provided but it does not remain in the stop position without application of sustained manual effort.

iii) Differential lock is not provided.

15.3.2 Field performance test:

15.3.2.1 Haulage performance:

i) The distance traveled / liter of fuel consumption, (km/l) with two wheel and four wheel trailer was observed as 7.07 to 7.26 and 7.03 to 7.19 (km/l) against the declaration of 6 to 7 (km/l) for two wheel and four wheel trailer.

This does not meet the requirement of IS: 12207-2014 and therefore, should be looked into for necessary corrective action.

15.4 Maintenance / Service problems:

No noticeable maintenance or service problems, observed during the test.

15.5 Recommendation with regard to safety on tractor:

The following requirements, inter alia, may be considered for incorporation on the tractor as per relevant Indian Standards:

i) There should be provision for spark arresting device in exhaust system.

ii) The fuel shut-off knob should remain in stop position.

iii) The working clearance between the draft control lever and mudguard should be provided as per IS: 12239 (Part-2) – 1999.

iv) PTO shaft master shield should be provided to avoid the accident.

v) The lateral distance from lower hitch point to center line of tractor should be provided as per the requirement of relevant Indian Standard.

vi) Provision of differential lock in tractor.

vii) The drive wheels should be fully guarded.

15.6 Adequacy of Literature supplied with machine:

15.6.1 The following literatures were supplied with the test tractor for reference during the

test:-

a) Operator’s manual for Mahindra B275 DI MKM (Bhoomiputra) tractor.

b) Parts catalogue for Mahindra B275 DI MKM (Bhoomiputra) tractor.

c) Service manual for Mahindra B275 DI MKM (Bhoomiputra) tractor.

15.6.2 The supplied literature was found adequate; however, these literatures should be brought out in national as well as other regional languages of India for guidance of users.

T- 1256/1783/2019





Page 47 of 47

16. CITIZEN CHARTER

Time frame for Testing & Evaluation as per Citizen Charter

Duration of Test Whether the Test Report is released within the time frame given in Citizen Charter.

Remarks

10 Months

10 Months (March, 2018 to January, 2019)

Yes --

TESTING AUTHORITY:

PRAMOD YADAV

AGRICULTURAL ENGINEER

C.V. CHIMOTE

TEST ENGINEER

J.J.R. NARWARE

DIRECTOR

This test report is compiled by Shri. Shivkumar Sharma, Senior Tech. Assistant.

17. APPLICANT’S COMMENTS

Para

No. Our Reference

Applicant’s comments

17.1 15.3.1.1 (ii), (iii), (iv) & (v), 15.3.1.2, 15.3.1.2.1, 15.3.1.3 (i) & (ii), 15.3.1.4, 15.3.1.6 (i) & (ii), 15.3.1.7 & 15.3.1.8

Observations will be studied and necessary action will be initiated.

ANNEXURE – I

TRACTOR RUN HOURS DURING TEST

A. LABORATORY AND TRACK TESTS: HOURS

1. Running-in 45.0

2. PTO performance test 8.8

3. Power lift and hydraulic pump performance test 0.6

4. Drawbar performance test 15.2

5. Brake test 1.7

6. Noise measurement 2.0

7. Air cleaner oil pull over test 3.5

8. Mechanical vibration test 0.6

9. Theoretical speed test 0.4

B. HAULAGE TEST: 5.6

C. Miscellaneous test and other run hours including idle run, transportation, trials and preparation for test

4.9

TOTAL: 88.1

Documents

O;kolkf;d ijh{k.k fjiksVZ izFke cSp ijh{k.k Lak[;k T- 1256/1783/2019 …fmttibudni.gov.in/MAHINDRA B 275 DI MKM.pdf · 2020. 5. 8. · 11. Haulage test 32 12. Components/Assembly