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O;kolkf;d ijh{k.k fjiksVZ la[;k@ No.: PT-67/483

COMMERCIAL TEST REPORT ekg:@ Month: January, 2015

FIRST BATCH TEST

SHRACHI SF 15 DI POWER TILLER

Hkkjr ljdkj Government of India d`f"k ea=ky;] (d`f"k ,oa lgdkfjrk foHkkx)

Ministry of Agriculture, (Department of Agriculture and Cooperation) nf{k.kh {ks= d`f"k e'khujh izf'k{k.k ,oa ijh{k.k laLFkku Southern Region Farm Machinery Training and Testing Institute VªSDVj uxj] xkyZfnUus - 515 731, ftyk% vuariqj(vka.iz.) Tractor Nagar, Garladinne- 515 731, District: Anantapur (A.P.)

[AN ISO 9001:2008 COMPLIANT INSTITUTION] Website: www.srfmtti.dacnet.nic.in E-mail: [email protected] Tele./FAX: 08551-286441

mailto:[email protected]

PT-67/483 SHRACHI SF 15 DI POWER TILLER

COMMERCIAL (FIRST BATCH TEST)

SOUTHERN REGION FARM MACHINERY TRAINING & TESTING INSTITUTE -

ANANTAPUR [AN ISO 9001:2008 COMPLIANT INSTITUTION] of 54

Manufacturer

:

M/s. Zhejiang Sifang Group

Corporation, 57, Youngtuo Road,

Yongkang, Zhejiang, China - 321 313.

Applicant : Bengal Tools Ltd. (Agro Division),

2, Jessore Road, Dum Dum,

Kolkata - 700 028.

SHRACHI SF 15 DI POWER TILLER

Report No. : PT-67/483 Month: JANUARY Year: 2015

GOVERNMENT OF INDIA

SOUTHERN REGION FARM MACHINERY TRAINING AND TESTING

INSTITUTE TRACTOR NAGAR, PO: GARLADINNE – 515 731,

DISTRICT: ANANTAPUR (A.P.)

[AN ISO 9001:2008 COMPLIANT INSTITUTION]

Telephone: 08551-286441 Fax: 08551-286441

Website: www.srfmtti.dacnet.nic.in E-mail: [email protected]

http://www.srfmtti.dacnet.nic.in/

mailto:[email protected]




ANANTAPUR [AN ISO 9001:2008 COMPLIANT INSTITUTION] 7 of 54

16. SUMMARY OF OBSERVATIONS, COMMENTS &

RECOMMENDATIONS

16.1 Evaluative (mandatory)/ Non-evaluative (non-mandatory) parameters

applicable for Qualifying Minimum Performance Criteria as per Clause –

4.1 (Table-1) of IS: 13539: 2008 for acceptance of the power tiller for the

purpose of subsidies / NABARD financing are summarized as under:

Sl.

No. Characteristics

Category

(Evaluative/

Non

Evaluative)

Requirements as

per IS: 13539:

2008

Values

declared

by the

applicant/

Requirem

ents

As

observed

Whether

meets the

requireme

nts

(Yes/No)

1 2 3 4 5 6 7

16.1 Engine Performance:

a)

Max. power

under two

hours test,

(kW)

Evaluative

Declared value to

be achieved with a

tolerance of -

7.5/+15 percent of

the declared value

10.0 10.8 Yes

b) Power at rated

engine speed,

(kW)

Non –evaluative ±5 % 10.0 10.7 Yes

c) Specific fuel

consumption

corresponding

to max.

power, ( g/kWh )

Non –evaluative 5% 265 287 No

d) Specific fuel

consumption

corresponding

to rated

power,

( g/kWh )

Non –evaluative 5% 265 271 Yes

e) Max.

equivalent

crankshaft

torque (Nm)

Non –evaluative

8% 55.0 53.9 Yes




ANANTAPUR [AN ISO 9001:2008 COMPLIANT INSTITUTION] Page 38 of 54

f) Max. operating temperature (deg. C) :

- Engine oil

Evaluative

The declared

value should not

exceed the max.

value specified by

the oil company

and observed

value under high

ambient condition

should not exceed

the declaration

150 120 Yes

-Coolant,

(water)

Evaluative

The declared

value should not

exceed the boiling

temperature of

coolant under

pressurized

condition or

otherwise and the

observed value

under high

ambient condition

should not exceed

the declaration.

150 134 Yes

g) Lubricating

Oil

consumption,

(g/kWh)

Evaluative

Not exceeding 1%

of SFC at max.

power under high

ambient condition

2.74 0.67 Yes

h) Maximum

coolant,

(water)

consumption,

(% of total

coolant

capacity)

Non –evaluative

The observed

value should not

exceed the

maximum value

specified by the

manufacturer

when evaluated

under high

ambient

conditions.

40 14.00 Yes





i)

Smoke level

Evaluative

Max light

absorption

coefficient of

3.25/m or

equivalent Bosch

No. 5.2 or 75

Hetridge value

(As per CMVR)

Not

Specified

Light

absorption

coefficient

of 2.87

per meter

Yes

j)

Overheating

tendency of

the engine

Evaluative

Satisfactory

completion of 2

hours test under

high ambient

condition.

--

Overheating

tendency

was not

observed

Yes

16.2 Rotary shaft performance:

a)

Max. Power

test, (kW)

Evaluative

Minimum 75

percent of obse

rved maximum

bhp for power

tiller above 5 hp

and 65 percent for

the power tiller

below 5 hp.

8.1 9.9 Yes

b) Power at rated

engine

speed,(kW)

Non –evaluative

- 10% 8.0 9.7 Yes

c) Specific fuel

consumption

corresponding

to power at

rated engine

speed,(g/kWh)

Non –evaluative

+ 10% 300 295 Yes

d) Max.

equivalent

rotary shaft

torque, Nm

Non –evaluative 8% 480 502 Yes

e) Max.

operating

temp. of

rotary

transmission

oil, (oC)

Non –evaluative

The observed

value should not

exceed the

maximum value

specified by the

manufacturer.

100 80 Yes





f) Rotary shaft

power rating,

(kW)

Non –evaluative

To be declared by

the manufacturer 8.1 9.9 Yes

16.3 Drawbar Performance :

i) Maximum

drawbar pull

corresponding

to 15% wheel

slip, (kN).

Evaluative Minimum 60 % of

static mass with

ballast

2.4 3.5 Yes

ii) Maximum

drawbar

power, (kW).

Non -

evaluative - 10% 4.5 4.5 Yes

iii)

Maximum

transmission

oil

temperature,

(oC)

Non -

evaluative

The declared

value should not

exceed the

maximum value

specified by the

oil company and

the observed value

should not exceed

the declaration.

100 67 Yes

16.4 Brake Performance:

a) Service brakes

Evaluative

Should meet the

requirement under

CMVR

--

-- --

b) Parking

brakes:

Observation

on rotation of

cranked

wheels at the

slope of 12%

facing up and

facing down

Evaluative

No rotation of

drive wheels at a

slope of 12

percent facing up

and facing down

No

rotation of

drive

wheels

No

rotation

of drive

wheels

Yes

16.5 Air cleaner oil pull over:

Maximum

percentage of

oil pull over

(mass basis)

Evaluative 0.25 0.11 Yes





16.6 Noise level:

a) Maximum

ambient noise

emitted by the

power tiller,

dB(A)

Evaluative As per CMVR

(88 dB(A))

82 Yes

b) Maximum

noise at

operator’s ear level,

dB (A)

Evaluative As per CMVR

(98 dB(A))

96

Yes

16.7 Amplitude of mechanical vibration at (micron):

a) Steering

handle grips

Non-

evaluative 100 µ, max. 169 No

b)

Gear levers Non-


c) Clutch / brake

lever(s)

Non-


d) Rotary shaft

speed change

lever

Non-


e) Steering

clutch lever

Non-


f) Accelerator

lever

Non-


16.8 Haulage Performance:

a) Gross load of

trailer (t)

Non-

evaluative -- 1.5 1.5 Yes

b) Distance

traveled / liter

of fuel

consumption,

(km)

Non-

evaluative -- 10 to 14 13.80 Yes

c) Fuel consu-

mption,(cc/

km/tonne)

Non-

evaluative -- 50 to 70 48.31 No





16.9 Stationery operations:

Stationary

operations

Evaluative

Should have the

provision for power

outlet for stationery

operations or

recommended

agricultural

appliances

--

Provided Yes

16.10 Discard limit (mm):

a)

Cylinder bore

diameter

Evaluative

To be specified by

the manufacturer in

printed literature

100.40 100.02 Yes

b) Piston

clearance Evaluative

To be specified by

the manufacturer in

printed literature

0.45 0.16 Yes

c) Ring end gap:

- 1st Comp.

Ring

Evaluative

To be specified by

the manufacturer

in printed literature

3.0 0.65 Yes

- 2nd

Comp.

Ring Evaluative

To be specified by

the manufacturer in

printed literature

3.0 0.45 Yes

- 3rd

Comp.

Ring Evaluative

To be specified by

the manufacturer in

printed literature

3.0 0.45 Yes

- Oil Ring Evaluative

To be specified by

the manufacturer in

printed literature

3.0 0.35 Yes

d) Clearance of big end bearing:

-Diametrical Evaluative

To be specified by

the manufacturer in

printed literature

0.50 0.06 Yes

- Axial Evaluative

To be specified by

the manufacturer in

printed literature

0.80 0.20 Yes

e) Ring groove clearance:

- 1st Comp.

Ring Evaluative

To be specified by

the manufacturer in

printed literature

0.25 0.07 Yes





- 2nd

Comp.

Ring Evaluative

To be specified by

the manufacturer in

printed literature

0.25 0.05 Yes

- 3rd

Comp.

Ring Evaluative

To be specified by

the manufacturer in

printed literature

0.25 0.05 Yes

- Oil ring Evaluative

To be specified by

the manufacturer in

printed literature

0.25 0.05 Yes

f)

Thickness of

clutch lining Evaluative

To be specified by

the manufacturer in

printed literature

Up to

rivet

head

1.41 to

1.79 Yes

g) Clearance of main bearing:

Diametrical

clearance Evaluative

To be specified by

the manufacturer in

printed literature

Ball &

Roller

bearing

NA ---

Crankshaft

end float Evaluative

To be specified by

the manufacturer in

printed literature

0.50 0.20 Yes

16.11 Safety requirements:

a) Provision of

guards on

moving parts

other than

rotavator.

Evaluative Yes Yes Provided Yes

b) Location and

direction of

exhaust

emission to be

away from the

operator and

machine for

stationary

operation.


c) Covers on hot

parts Evaluative Yes Yes Provided Yes

d) Locking of

parking stand

lever






e) Protective

shield for

rotavator to

prevent flying

of mud and

stones


f) Accidental

engaging of

reverse speed

gear when

rotary is in

operation.


g) Provision of

head lights Evaluative Yes Yes Provided Yes

16.12 CATEGORY OF BREAKDOWNS/DEFECTS:

S. No. Characteristi

cs

Category (Evaluative/

Non-evaluative)

Requirements as per IS: 13539-

2008

As

observed

Whether meets the requirements

(Yes/No)

1.

Critical

Evaluative No critical

breakdown None

Yes

2.

Major

Evaluative

Not more than two

and neither of

them should be of

repetitive in nature

None

Yes

3.

Minor

Evaluative

Not more than five

and frequency of

each should not

more than two.

None

Yes

16.13 Salient Observations:

16.13.1 Engine Performance:

i) The backup torque is 6.94 %. This is considered on lower side.

Necessary action may be taken for necessary improvement.

ii) The maximum power was observed as 10.8 kW.

iii) The specific fuel consumption corresponding to maximum power was

recorded as 287 g/kWh against the declared value of 265 g/kWh. This

should be looked into for necessary improvement in performance.





16.13.2 Rotary shaft performance:

i) The maximum rotary shaft power was measured as 9.9 kW.

16.13.3 Mechanical Vibration:

The amplitude of mechanical vibration on maximum controls /

measuring points of the power tiller exceeded the limit of 100 micron.

The mechanical vibration is directly concerned with Operator’s Health, Safety and Comfort; apart from the useful life of the

machine’s components. In view of the above, this deserves to be

given top priority for corrective action.

16.13.4 Noise measurement:

Max. Noise at operator’s ear level and by stander’s position was observed as 96 dB(A) and 82 dB(A). The noise observed at operator's

ear level is more than the limit specified by IS:12239 (Part3) – 1988.

The Sound Pressure Level is directly influencing the Operator’s Health, Safety and Comfort; and therefore warrants the corrective

action.

16.13.5 Rotavator blades:

i) The dimensions of the blades do not conform, in full, to IS: 6690-

1981.

ii) The chemical composition of Straight blades and Hatchet blades does

not meet, in full, the requirement of IS: 6690-1981.

iii) The hardness of the blades does not conform, in full, to IS: 6690-

1981.

16.13.6 Haulage test

Matching Trailer was not supplied by the applicant therefore the

trailer available with this Institute had to be used for Haulage test. It

is therefore recommended to either provide the trailer as per

IS:10806-2003, or provide the address of trailer manufacturer which

can provide the trailer as per IS:10806-2003.

16.13.6.1 The power tiller was recommended for haulage test with a trailer of

gross mass of 1.5 tonne.





16.13.6.2 Distance traveled per litre was observed 13.80 km.

16.13.6.3 Specific fuel consumption was observed 48.31 cc/km/ton

16.13.7.1 Provision of spark arresting device may be considered for

incorporation in the exhaust system.

16.13.7.2

The labeling plate provided on the machine does not give full

information. It is therefore recommended that, a labeling plate with

following information may be provided on the machine

I. Name of Manufacturer and trade mark, if any.

II. Make

III. Model

IV. Year of Manufacturer

V. Engine No.

VI. Chassis No.

VII. Max. Power (kW)

VIII. Specific fuel consumption (g/kWh).

16.13.7.3 It is recommended that the Power Tiller should bear the

identification number viz. engine No., Chassis No. including month

and year of manufacture embossed or etched or punched on it. Not

only this, the applicant is advised to indicate/intimate the testing

agency regarding the place where the numbers is embossed or

etched or punched including the cote for the year and month of

production in respect of that particular model.

16.13.7.4

It is recommended that the tyre should have the “Marking” as per clause 8 of IS:13154-1991.

16.13.7.5 The Indian make of bulb is required to be recommended.

16.13.7.6 It is recommended that only those bulbs should provided on head

lamp of Power Tiller which are duly tested as per AIS 034. Further,

it is also recommended to fit only those “Head Lamp Assembly” on the Power Tiller which are duly tested in accordance with AIS 062.

16.13.7.7 As per IS: 12239 (Part 3) – 1988, “maximum safe speed” with trailer is required to be specified by the manufacturer. Necessary action may

be taken in this regard.





16.13.7.8 As per IS: 12239 (Part 3) – 1988, balancing mass to be added to

achieve correct weight balance of the power tiller with various

attachments should be recommended by the manufacturer in the

operator manual. This may be examined for compliance.

16.13.7.9

The handle grip does not meet the requirement of IS: 11858 – 1986.

This may be looked into for compliance.

16.14 Adequacy of literature supplied with the machine:

The following literature was supplied with the test sample for

reference during the test :

1. Operation manual and Parts catalog of Power Tiller.

2. Operation manual and Parts catalog of Engine.

However, it is recommended that the Operator Manual may be

brought out in accordance with IS: 8132-1999 with inclusion of, inter

alia, the following: -

- Recommended matching implements.

- Fuel saving tips.

- Safe operating speed with trailer.

17. COMPARISON WITH SPECIFICATION AND PERFORMANCE

CHARACTERISTICS OF PREVIOUS SAMPLE (Test Report No.

PT-84/1066, January, 2007 of CFMTTI, Budni) and PRESENT

SAMPLE

SI No. Parameter Previous Sample Present Sample

1 2 3 4

17.1 Specification:

17.1.1 Power tiller:

Make : Sifang Sifang

Model : Shrachi SF 15 DI Shrachi SF 15 DI

17.1.2 Engine:


Model : ZS1100 ZS1100

Bore/stroke, (mm) : 100/115 100/115

Specified cubic capacity, (cc) : 903 903

Rated engine speed, (rpm) : 2000 2000





1 2 3 4

17.1.3 Fuel system:

Make & model of fuel filters : Sifang, CO506 Sifang, C0506

Make & model of fuel

injection pump

: Sifang, BF1AK09 Sifang, BF1AK09

Make & model of fuel

injectors

: Sifang, HZ-PF 68807 Sifang, PF68S02

Manufacturer’s production settings, (MPa)

: 18.14 ± 0.49 18.14 ± 0.49

Injection timing (apa) : 22±1 degrees before

TDC

22±1 degrees

before TDC

Make & model of governor : Sifang Sifang

17.1.4 Cooling system:

Total coolant capacity, (l) : 5.0 5.0

17.1.5 Lubrication system:

Oil sump capacity, (l) : 3.20 3.20

17.1.6 Transmission:

17.1.6.1 Clutch:

Type of clutch plate : Dry, Friction Plate Dry, Friction Plate

Size, (mm) : 159.8 159.2

17.1.6.2 Gear box:

No. of speeds: :

-Forward : 06 06

-Reverse : 02 02

Range of speeds, (kmph):

-Forward : 1.47 to 15.93 1.43 to 15.86

-Reverse : 1.17 to 4.31 1.13 to 4.19

17.1.7 Brake:


Type : Wet, disc type Disc type

Area of liner, (sq. cm) : 183.22 23.93

17.1.8 Wheel equipments:

Size of tyres : 6.00 - 12, 6 PR 6.00 x 12 (6 PR)

Standard track width, (mm) : 810 800

Wheel base, (mm) : 1510 1555





1 2 3 4

17.1.9 Overall dimensions, (mm):

-Length : 2970 2870

-Width : 1020 970

-Height : 1180 1240

-Ground clearance : 195 200

17.1.10 Mass, (kg):

-With rotary tiller : 490 492

-Without rotary tiller : 395 392

17.2

Performance

characteristics:

17.2.1 Engine performance:

-Maximum power, (kW) : 11.1 10.8

-Specific fuel consumption

corresponding to maximum

power, (g/kWh)

: 289 287

-Maximum equivalent

crankshaft torque, (Nm)

: 55.2 53.9

-Back-up torque, (%) : 7.18 6.94

Maximum temperature,

(Deg.):

:

-Engine oil : 90 120

-Coolant (water) : 107 134

-Exhaust gas : 510 528

-Air intake : 47 44

Lube oil consumption,

(g/kWh)

: 0.441 0.67

17.2.2 Rotary shaft performance:

-Maximum power, (kW) : 10.7 9.9

-Specific fuel consumption

corresponding to maximum

power at rated engine speed,

(g/kWh)

: 319 296

-Maximum rotary shaft

torque, (Nm)

: 522 502.1

Maximum operating

temperature of rotary

transmission oil, (˚C)

: 74 80





1 2 3 4

17.2.3 Drawbar performance:

Maximum drawbar power,

(kW)

: 4.8 4.5

Maximum drawbar pull,

(KN)

: 3.78 3.5

Maximum transmission oil

temperature, (˚C)

: 62 67

17.2.4 Brake:

Maximum breaking device

control force, (N)

: 152 288

Efficacy of parking brake : Effective Effective

17.2.5 Noise measurement:

Maximum noise at by-

standard’s position, dB(A) : 85 82

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

: 97 96

17.2.6 Air cleaner oil-pull-over

test:

Maximum oil pull over, (%) : 0.07 0.11

17.2.7 Mechanical vibration:

Maximum amplitude of

vibration at, (micron):

-Gear shifting lever : 75 205

-Steering handle grip : 1900 169

-Rotary shaft speed change

lever

: 120 123

-Steering clutch lever : --- 328

-Accelerator lever : 1900 170

17.2.8 Haulage test:

-Gross mass of trailer,

(tones)

: 1.5 1.5

-Av. travelled speed, (kmph) : 15.63 to 16.20 17.00

-Distance travelled per liter

of fuel consumption, (km)

: 11.48 to 11.85 13.80

-Av. fuel consumption,

(cc/km/tonne)

: 56.28 to 58.10 48.31





1 2 3 4

17.3 Maintenance/service

problems:

: i) During engine trial

test excessive smoke

was observed beyond

rated engine speed.

The applicant

requested for

checking injector

pressure. It was

observed 195 kg/cm2

against the

declaration of 185 ±

5 kg/cm2. It was

adjusted to 185

kg/cm2- 7.0

ii) the fan belt

broken twice, first

during rotary test and

secondly during field

test, it was replaced

with new one - 23.9

& 71.7

iii) Three straoght

tynes broke during

field test after 58.9

hrs of operation as

well as one tyne

broke after 65.5 hrs

of operation. These

were replaced by

new ones - 58.9 &

65.5

iv) During field

performance test ball

bearing and steering

spring (RH) broke.

They were replaced

by new ones - 79.3

None of those

problems

mentioned in col.3,

was observed in

the present sample.

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