4
3
1.6 Re-Assembling of different parts of machine to right position for its proper working :
1.
Central Wheel :
Central wheel is fixed inside the frame : take it out by loosing the bolt. It
should be fixed in the center of machine at front. Fix it as shown in pictures.
2.
Seed Handle :
The seed handle is bolted under hopper.
Loose the bolt and take the handle out. Now as shown in
figures fix the handle in shown position. Bolt the handle in
same hole but in right position. Do not forget to check nut it
(Use double nut it).
3.
Rear Platform :
Fit the plate-form in horizontal position as
shown in figures and bolt it with frame.
Fig -8 (c)
Fig -8 (d)
Fig -8 (b)
Fig -8 (a)
2.2
Disc Openers:-
The No Till Multi Crop Drill has 9-13 inverted disc’s openers depending on the model or
brand. These can be spaced as needed in different crops. These disc type openers when
attached to a disc open a narrow slit 1.2"-2" wide. The cutting portion of the disc’s openers
is made by using 0.1" thick disc. The disc’s opener is welded to the mild flat steel shank
(straight leg standard mounted with disc’s slit openers). The discs can be of “welded on” or
“bolted on” or even “knock down” type. The disadvantage of “welded on” disc is that they
require machine shop for replacement, whereas, a farmers himself can replace the other
two types of disc.
2.1
Frame:-
2.4"×2.4" sq. welded together to provide the desired strength and rigidity. This is
true in a drill of 9 discs but in 11-discs drill, the length of frame is about 5'9".
2. Major Components and their Description
7. To ensure the proper working oil all the moving/rotating parts like
seed shaft, front & side wheels and then rotate the front wheel with
hand. Check that whether the parts are working properly or not. In
case the parts are not working properly oil the moving parts
especially in the router's hole in the fluted rollers (seed shaft). And
after some time rotates the front wheel with hand again to check that
is it moving/rotating freely (Fig-7).
Fig.-7
2.3. Seed Boxes
Seed boxes, made of mild steel sheet (0.07" thick), are mounted
side by side on the frame, in front and seed box in the rear. Box
dimensions can vary but these generally depend upon the
effective width of the machine and will increase with the increase
in the number of the disc’s openers. For example in case of 11-
disc, the length of seed boxes will be around 5'10". Inner view of
(a) Seed.
2.4. Seed Metering Device
Seed metering device has the following components
2. Measure the effective width of coverage in meters of the drilling machine by multiplying
number of furrows with spacing.
3.2. To cover distance l, the drive wheel has to take ‘n’ turns i.e. = l/D
1. Measure the diameter (D) of the drive wheel and calculate its circumference i.e. D in
meters.
Calibration of seed-drill (in Laboratory)
3. Then distance/length (L) to cover one hectare is calculated by dividing 10000 m2 (area of
one hectare) by effective coverage
3.5. Weigh the quantity of seed dropped from each opener and record on the data sheet to
know the variation in different rows, if any.
3.4. No Till Multi Crop Drill Raise the seed drill so that drive wheel becomes free to be turned.
Put a chalk mark on the rim of the wheel. Fill the seed box, set the seed rate adjusting lever
and rotate the wheel for ‘N’ turns.
3.1. The distance (l) i.e. l/100th of a hectare will be equal to L/100 in meters.
3.3. Allowing 10% slippage, the distance can be covered in ‘N’ turns i.e. = (n–0.1 n)
Fig-11(a) Seed Hole