Farm Machinery and Equipment-II 3(2+1)

LESSON 29. PROCEDURE FOR TESTING FARM MACHINERY. BIS,ISO,RNAM TEST CODES

2   METHOD OF SELECTION

The machine was selected from manufacturing unit from a lot or it may be directly submitted for test.

TEST PROCEDURE: The following Test Codes were referred for testing of Self Propelled Power Reaper:

(i) IS: 11467-1995 (Reaffirmed in Jan. 2001) (Test Code for Cereal Harvesting Machine)

(ii) IS: 6025-1982 (Reaffirmed in Dec. 1999) (Specification of knife section)

(ii) IS: 10378-1982 (Reaffirmed in Jan. 2001) (Specification of knife back).

 

SPECIFICATIONS to be recorded

 

4.1

General: -

 

 

 

 

Manufacturer

:

 

 

 

Name of machine

:

 

 

Make

:

 

 

Model

:

 

 

Type

:

 

 

Serial number

:

 

 

Year of manufacture

:

 

 

Size of Reaper (mm)

:

 

 

Type of crops recommended    

:

 

 

 

 

 

 

 

 

Constructional details may be given (Fig. 1)

 

4.2

Details of prime-mover:

 

 

 

Type

:

 

 

Make

:

 

 

Model

:

 

 

Serial number

:

 

 

Country of origin

:

 

 

 

 

As specified

As observed

 

Maximum horse power kW (Ps)

:

 

 

 

Rated Power kW (Ps)

:

 

 

 

Engine speed (Manufacturer’s recommended setting) (rpm):

 

- High idle

:

 

 

- Rated engine speed

:

 

 

- Low idle speed

:

 

 

- Speed at max. torque

:

 

 

- Rated engine speed for field

:

 

 

4.2.1

Cylinder:

 

 

 

Number

:

 

 

Disposition

:

 

 

Bore/Stroke (mm)

:

 

 

Capacity as specified by the

applicant (cc)

:

 

 

Compression ratio

:

 

 

Type of cylinder liner

:

 

 

Arrangement of valves

:

 

 

Valve clearance (cold) (mm):

:

 

 

- Inlet valve

:

 

 

- Exhaust valve

:

 

 

No. of compression rings

:

 

 

No. of oil ring

:

 

 

 

4.2.2

Fuel Supply System:

 

 

 

Type of fuel feed

:

 

Type of fuel filter

:

 

Capacity of fuel tank (l):

:

 

Location of fuel tank

:

 

Provision of draining of

Sediments/water

:

 

4.2.2.1

Fuel Injection Pump:

 

 

Type

:

 

Make

:

 

Model

:

 

Method of drive

:

 

4.2.2.2

Injector nozzle:

 

 

 

Number & type

:

 

 

Make & Model

:

 

 

Injection pressure, (kg/sq. cm)

:

 

 

Injection timing, (deg.)

:

 

 

 

 

 

4.2.3

Governor:

 

 

Make

:

 

Type

:

 

Range of speed governed (rpm)

:

 

Rated speed (rpm)

:

 

 

 

 

 

4.2.4

Air Intake System:

 

 

4.2.4.1

Pre cleaner:

:

 

4.2.4.2

Air Cleaner:

 

 

Make

:

 

Type

:

 

Location

:

 

Suction pressure kPa (mm of Hg)

:

 

Recommended service schedule

:

 

 

 

 

 

4.2.5

Exhaust:

 

 

Type

:

 

Location

:

 

 

Pressure kPa (mm of Hg)

:

 

 

 

 

 

4.2.6

Lubrication system:

 

 

Type

:

 

Oil capacity (l)

:

 

Oil change period (h)

:

 

 

 

 

 

4.2.7

Cooling system:

 

 

Type

:

 

Details of blower

:

 

Size (OD/ID x W), (mm)

:

 

Size of fin (mm):

 

 

Height/Width

:

 

Number of fins

:

 

4.2.9

Starting System:

 

 

 

Type

:

 

4.2.10

Electrical System:

 

 

 

Ignition timing

:

 

 

 

 

 

4.3

Transmission system

 

 

 

Mode of power transmission from engine to transmission box

:

 

 

Reduction ratio

:

 

 

Size of drive pulley, (mm)

:

 

 

Size of driven pulley, (mm)

:

 

 

Nos., size and type of belts

:

 

 

4.3.1

Main Transmission Box:

 

 

 

Make

:

 

 

Model

:

 

 

Type

:

 

 

Batch number

:

 

 

Mode of power transmission:- It transmits power to the bevel box and final drive through the fourth and second shaft respectively.

 

Reduction ratio

:

 

 

No. of speeds

 

 

 

- Forward

:

 

 

- Reverse

:

 

 

Nominal speed

 

 

 

Direction of motion	Nominal speed) (kmph)
	At rated engine speed (2600 rpm)	At field engine speed (2600)
Forward	3.36	3.36
Reverse	2.28	2.28

 

 

 

Lub Oil Capacity (l)

:

 

 

Method of lubrication

:

 

 

 

 

 

4.3.2

Final drive

 

 

 

Type

:

 

Mode of power transmission:- It takes drive from the bevel shaft of transmission box and transmits it to the axle shaft. For the reverse speed the power is routed through an idler sprocket.  

Details of Sprockets

 

 

No. of teeth on drive sprocket

:

 

No. of teeth on driven sprocket

:

 

Reduction ratio

:

 

Details of chain

 

 

Type

:

 

Length (mm)

:

 

- No. & Size of links (mm)

:

 

- Size of roller (mm)

:

 

4.3.4

Wheel equipment

 

 

 

Type of tyre

:

 

Make

:

 

Model

:

 

No. of tyres

:

 

Size

:

 

Inflation pressure (Kpa)

:

 

Rolling radius (mm)

:

 

Track width (mm)

:

 

 

 

 

 

4.4

Steering

 

 

 

Type

:

Double handle, with steering clutches

Constructional details:-.

Method of operation

:

 

Spacing of handle grips (mm)

:

 

Material of handle grip

 

 

Size of grip (mm)

:

 

Height of handle grip from GL,  (mm)

:

 

Height adjustment of steering

:

 

 

Method of fixing:- Each handle arm is bolted to the reaper frame with two nut and bolts.

4.4.1

Steering clutches:

 

 

 

Numbers

:

 

 

Type

:

 

 

Make

:

 

 

Location

:

 

 

Method of operation

:

 

 

 

 

 

4.5

Reaper Transmission:

 

 

4.5.1

Reaper Clutch:

 

 

 

Location

:

 

Type

:

 

Mode of power transmission

:

 

Method of operation

:

 

 

 

 

 

4.5.2

Reaping bevel box:

 

 

 

Type

:

 

No. of gears

:

 

Reduction ratio

:

 

Mode of power transmission:

 

Type of lubricant

:

MP Grease

 

 

 

 

4.5.3

Reaper frame:

 

 

 

Constructional details: -. 

 

 

 

 

4.5.4

Cutter-bar assembly:

 

 

Working width (mm)

:

 

Effective width (mm)

:

 

No.& spacing of knife guards (mm)

:

 

No. & type of knife blades

:

 

Knife stroke (mm)

:

 

Stroke per min

:

 

Knife speed corresponding to 2600 rpm of engine (m/s)

:

 

Details of knife drive

:

 

Height of cutter bar from G.L. in horizontal position (mm)

:

 

Method of adjustment

:

 

 

 

 

 

4.5.5

Crop divider:

 

 

 

Type

:

 

Numbers

:

 

Distance between adjustable shoes, (mm):

 

 

-Maximum

:

 

-Minimum

:

 

Details of shoe:

 

 

Constructional details: -

- Length (mm)

:

 

- Width at rear (mm)

:

 

 

 

 

 

4.5.6

Crop guide (star) wheel:

 

 

 

No. of wheels

:

 

 

Material

:

 

 

No. of projections on each wheel

:

 

 

Dia of wheel (mm)

:

 

 

No & type of bearings if any

:

 

 

Method of mounting & its drive: -

 

 

4.5.7

Divider guide

 

 

 

Numbers & type: -

 

 

 

 

4.5.8

Knife: Specification of knife section as per IS: 6025-1982

 

Type

:

Top serrated

Total numbers

:

23

 

4.5.9

Knife back (Specification of knife back as per IS: 10378-1982)

 

 

4.5.10

Knife clips:

 

 

Material

:

 

Size, (mm)

:

 

No. of clips

:

 

No., Type & size of bolts fixing knife clips, (mm)

:

 

Spacing of knife clips, (mm)

:

 

Provision for adjusting the clearance between clip and cutter bar

:

 

Method of fixing: - Knife clips are tightened to ledger plate with the help of 2 nos. bolts & nuts to hold the knives & knife backs.

 

 

4.5.11

Ledger Plate Assembly:

 

 

 

Constructional details:

Size of ledger plate assembly

:

 

Ledger plate:

 

 

No of plates

:

 

Type

:

 

Shape

:

 

Length (mm)

:

 

 

Width at base (mm)

:

 

 

Width at top (mm)

:

 

 

Thickness (mm)

:

 

 

 

 

 

4.5.12

Knife Head:

 

 

Number

:

 

Material & size (mm)

:

 

Height of head from cutter bar (mm)

:

 

Size of slot for the movement of crank pin (mm)

:

 

Method of fixing:

 

 

4.5.13

Reaping Crank Assembly

Size of crank, (mm)

:

 

Size of roller pin, (mm)

:

 

Drive safety arrangement

:

 

 

 

 

 

4.5.14

Crop Conveyor:

 

 

 

Number of conveyors

:

 

Type

:

 

Vertical distance between two Conveyors (mm)

:

 

Speed of conveyor chain corresponding to 2600 rpm of engine(m/s)

:

 

Provision for tensioning

:

 

Drive safety arrangement

:

 

Details of Conveyor Chain:

 

 

4.6

Details of controls:

 

 

 

v  Steering handle with side clutches                         

v  Throttle lever on RHS handle

v  Reaper operating clutch on LHS of reaper frame..

v  Main gear shifting lever at center

4.7

Overall dimensions (mm):

 

 

 

Length	:
Width	:
Height	:

 

 

 

 

4.8

Ground Clearance (mm)

:

 

 

 

 

 

4.9

Mass with all reservoirs filled (kg)

:

 

 

 

 

 

4.10

Colour of machine:

 

 

- Sheet metal

:

 

- Chasses & other components

:

 

 

- Handle bar

:

 

 

- Engine

:

 

 

 

 

 

                

5   FUEL AND LUBRICANTS

5.1 Fuel : The High-speed diesel oil supplied by M/s Hindustan Petroleum Corporation Limited having density of 0.830-g/ c. c. at 15°C was used.

5.2 Lubricants: As recommended by the manufacturer

6    RUNNING-IN: The machine was run-in at load for 1.0 h in paddy crop before starting the test in consultation with the applicant’s representative. The running-in trial was conducted at 2600 rpm of the engine as recommended by the Applicant for field work. 

7   TURNING ABILITY

Minimum turning diameter, (m)
Minimum clearance diameter, (m)

 8     FIELD PERFORMANCE TEST

SUMMARY OF CROP PARAMETERS

SUMMARY OF FIELD PERFORMANCE

 Harvesting of other crops: The applicant requested for evaluating the performance of the machine for harvesting paddy crop only.  Thus, the performance evaluation of the machine was limited to only one crop.

                 Wear of cutter-bar

S. No.	Before Operation	After Operation (26.3 h )	Percent wear	Percent wear  per hour
1

               Remarks: - The hourly percentage wear was recorded as 0.05% after the operation of 26.3h.

9. DEFECTS, BREAKDOWNS AND REPAIRS              

10. APPLICANT’S COMMENTS

 

Signature of Testing Authorty