PIEROBON TD 21 Series Guide

1
Read the operator`s manual carefully to operate and service your planter /fertilizer model
TD correctly. This manual should be considered a permanent part of the machine and
should always remain with it. Failure to do so could result in personal injury or equipment
damage. This unit has been designed for small and coarse grains, no-tillage and traditional
tillage and should be used within usual farming applications. Should the equipment be
abused or modified to change its performance beyond the original factory specification,
damages will solely be at the operator’s risk. The machine must be operated by skilled
users to avoid safety hazards. The operator should get acquainted with safety rules as well
as current transport laws.
Pierobon S.A. will not be responsible for breakages or damage caused by alterations or
changes carried out without its previous authorization. The company reserves the right to
introduce necessary changes to the equipment due to technical or commercial reasons,
thus not implying any kind of obligation on its part.
To our customers
Before this machine was launched into the market, countless hours were spent resear-
ching and developing this and other small grains, no-tillage, traditional tillage and fertilizing
equipment. Their strong and solid construction, make them achieve maximum performan-
ce on the fields.
We appreciate the confidence placed in us by considering our effort to improve the machi-
ne performance. Operating this equipment in accordance with the procedures outlined in
this manual is your best acknowledgement.
Thank you for choosing us.
The right is reserved to make changes at any time without notice.
FOREWORD
PIEROBON S.A.
José Pierobon 865 - X2189AWM Cruz Alta
Córdoba Province - Argentina
[phone]
[email protected] - www.pierobon.com.ar

2
CHAPTER I
Safety Information
A) Environment care 3
B) Safety alert symbol 3
C) Follow safety and operating instructions 3
D) Avoid injury hazards 3
E) For your protection 3
F) Keep riders off machine 3
G) Use safety lights and warning devices 3
H) Transport machinery safely 3
I) Practice safe maintenance 4
J) Avoid high pressure fluid hazards 4
K) Handle chemicals properly 4
CHAPTER II
General specifications
A) Equipment features 5
B) Parts identification 6
C) Row unit 7
D) Technical specifications for TD 21 models 8
FILAM System 9
CHAPTER III
Adjustments
A) Operating guidelines 12
B) Operating machine 12
C) Closing seeds outlet to block operation at alternate
seeding rows 13
D) Speed gearboxes 14
E) Openers down-pressure adjustment 15
F) Useful calculator to verify seeds / fertilizer rate 16
G) Seed rate chart - Model TD 21 17
H) Useful calculator to verify seeds / fertilizer rate 18
I) Fertilizer rate chart - Model TD 21 19
J) Lucerne rate chart - Model TD 21 20
K) Lucerne rate chart - Model TD 21-30 21
L) Row unit adjustment 22
M) Wheels 23
N) Wheels position for end-wise transport 24
O) Wheels position for work 24
P) Safety “R” clips position in wheels locks 25
Q) End-wise transport hitch 25
R) Working hitch 26
S) Maintenance jobs 27
T) Periodical maintenance jobs, cleaning and lubrication 27
U) Recommended grease and oil 30
V) End-of-season maintenance 31
CHAPTER IV
Troubleshooting 32
CHAPTER V
Planter work capacity 34
CHAPTER VI
1- Identification plate 35
2- Safety decals 35
Page
TABLE OF CONTENTS

3
SAFETY INFORMATION
A) Environment care
Disposing of waste is harmful to the environment.
Oils, fuels, filters, batteries, etc, spilled onto the ground affect
ecology.
Hand in these wastes to be recycled.
B) Safety alert symbol
When you see this symbol, be aware of potential hazard
of injuries due to improper use of the equipment.
C) Follow safety and operating instructions
Read and understand all safety decals in this manual and
those on the machine.
Keep decals clean and legible. Replace all damaged or
missing decals.
The seeder will work properly if the operator reads and
understands all safety and operating procedure in this
manual before doing work.
Alterations or changes carried out without previous
authorization could cause damage to equipment or
personal injury
D) Avoid injury hazards
Keep hands, feet and clothing away from moving parts.
Watch out when approaching opener disks.
Be sure to service machine while it is not in motion.
Keep away from transmission chains and gear sprockets.
CHAPTER I E) For your protection
To avoid injury while working under the machine, always
use hydraulic cylinders safety locks.
F) Keep riders off machinery
The implement should be operated by one person only.
Riders could be injured or thrown away from machine.
G) Use safety lights and devices
Slow-moving equipment or towed implements like this
one can create a hazard when driven on public roads.
Prevent injuries from colliding against other vehicles.
Use safety lights and devices on public roads and check
that they are in good working conditions. Replace or
repair them if they have been damaged or lost.
In some cases, additional warning lightning and marking
may be necessary.
H) Transport machine safely
Ensure machine seed tanks are empty before transport.
The tank filling of both seed and fertilizer will be carried
out only at work field.
Before transport, always lock opener disks in raised
position and lock-up the machine lifting cylinders.
Hydraulic failure can allow the machine to fall rapidly,
causing injury or death.
It is recommended transport speed does not exceed 20
Km/h.
When towing the machine under adverse surface condi-
tion, reduce speed. Extreme caution is needed since the
machine has no breaks.
Always observe transport instructions.

4
Follow these safety rules strictly.
REMEMBER: If an accident
may happen, it will happen.
YOUR PERSONAL SAFETY
AND THAT OF YOUR MACHINE
IS YOUR OWN RESPONSIBILITY.
I) Practice safe maintenance
Refer to service procedures before doing work. Keep
service area clean and dry.
Never lubricate or adjust machine while it is moving.
Keep hands, feet and clothing away power-driven parts
while in motion.
Securely lower opener disks to ground to carry out
servicing.
Keep all parts in good condition and properly installed.
Replace worn-out parts. Remove any build-up of oil,
grease or debris.
Wear proper protective equipment, such as special
shoes, gloves, goggles, helmet, earplugs, etc.
J) Avoid high pressure fluids hazard
Escaping fluid under pressure can penetrate skin,
causing serious injury.
Relieve pressure before disconnecting hydraulic lines
and check that all connections are tightened properly
before applying pressure into the hydraulic system.
Use a piece of paper or cardboard, not body parts, to
check for suspected leaks in connections.
If an accident occurs, see a doctor immediately.
K) Handle chemicals properly
Keep chemicals away from eyes, skin and hair. If chemi-
cal gets in contact with skin, wash immediately with soap
and water.
Dispose of unused containers properly as well as spare
treated seeds and fertilizers.
Do not smoke while you are exposed to chemicals.
Wear protective clothing, goggles and gloves while
handling chemicals.

5
Chassis
It is built with highly resistant structural tubing, which
makes a strong frame to support the other implement
components (Picture 1-A). The row units are anchored onto
two toolbars which are conveniently spaced for better
operator transit. It also features an additional front bar for
front no-tillage coulters attachment.
Work hitch
It is made of structural tubing and it can be folded
(manually by means of a spring in models TD 21 x 18
rows and TD 21 x 24 rows, and hydraulically in models
TD 21 x 30 rows, TD 21 x 36 rows and TD 21 x 48 rows)
to a vertical position to facilitate end-wise transport (Picture
1-B).
Endwise transport hitch
It is made of structural tubing and it can be folded when
the machine is working (Picture 1-C).
Lifting system
Hydraulically operated by four double-acting cylinders
and flow control valve in each module (Picture 1-D).
Row markers
Hydraulically operated and sequence valve. Marking is
carried out by 14” notched disks mounted on steel hubs
with adjustable double conical bearings and grease seals
(Picture 1-E).
Hydraulic rocking system
Independent from lifting system to enable load distribu-
tion on all four wheels while working or transporting
(Series manufactured in model TD 21x 30 rows).
Lucerne box
Optional item. Made of stamped metal sheet.
Seed box
Single box, made of stamped metal sheet and featuring
great capacity (Picture 1-F).
CAPITULO II
Picture 1
GENERAL SPECIFICATIONS
The following technical specifications and general features information are useful and simple guidelines for operator´s
instruction.
A) Equipment features:
A
B
E
F
G
C
H
D

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Box for solid granular fertilizer
Made of stamped metal sheet and featuring great capaci-
ty. It is protected by epoxy paint in the inside and its
bottom is made of stainless steel (Picture 1-G).
Hydraulic jack
Used for wheels alignment operations. (Not included in
Model TD 21 x 30 rows)
Wheels
Provided with four (400/60 x 15.5” - 14 PR) tires per
module in models TD 21 x 18 rows; TD21 x 24 rows,
TD21 x 36 rows, TD21 x 48 rows and (14 x 17.5” - 14 PR)
for model TD21 x 30 rows (Picture 1-H).
Speed gearboxes
27-speed gearboxes independently operating for seeds,
fertilizer and lucerne.
Drive wheel
There is one (6.00 x 16 “- 6 PR) drive wheel per module
which is situated at the rear part of the equipment. It has
no clutches and it is supplied with a spring floating system
that allows the wheel to be always in contact with the
ground while the machine is planting (Picture 2).
B) Parts identification
Left module: (Picture 3-A) If we observe the machine from
behind and work oriented, we are able to identify this
module as it is situated on the left hand-side and it holds
the transport hitch.
Right module: (Picture 3-B) If we observe the machine from
behind and work oriented, we are able to identify this
module as it is situated on the right hand-side.
Picture 2
Picture 3
Figura 3
B
A

7
C) Row unit
Opener disk: FILAM System opener set: conical stam-
ped, centered double disk with inner blade - 15.5” Ø and
5 mm thickness (Picture 4-A).
Planting depth control is carried out by a double gauge
wheel surrounded by a rubber band - semi-pneumatic,
featuring a rim with metal cleaner edge - placed at the
sides of the double opener disks (Picture 4-B).
The oscillating arms which support the wheels, are
mounted onto a rocking structure to assure optimum
ground contour following. The pins, onto which the arms
pivot, are made of thermically hardened steel and are
threaded into a hub which strengthens the set and make
all the components completely replaceable.
The seed firmer is made of synthetic flexible material:
acetal resin with polyurethane. It ensures seed-ground
contact and contributes to depth uniformity while planting
(Picture 4-C). Optional: a seed press wheel can be attached.
Furrow closing and ridge shaping are carried out by a set
of notched closing disks. Down-pressure and angle of
attack can be adjusted and one of the disks can be remo-
ved if required by work conditions (Picture 4-D).
All turning elements (coulters, disks and wheels) are
mounted onto forged steel hubs with double adjustable
conical bearings.
For no-tillage planting, a 16” Ø front cutting coulter must
be attached to the corresponding bar. The no-till coulter
can be adjusted in height and spring pressure (Picture 4-E).
The planting unit is mounted onto the chassis with
parallel arms system. Down-pressure load is transferred
to the planting row by two expansion springs and can be
set in two different load positions, manually adjusted
through a simple device.
The unit counts on two plastic outlet tubes for seeds and
fertilizer placed between the opener disks. The seeds
outlet tube is placed behind the disks axles (Picture 4-F) and
the fertilizer tube is in front of them (Picture 4-G).
Fertilizer meter
Chevron wheel-type meter, variable rate carried out by
means of an independent 27-speed gearbox - featuring
low and high speed options (Picture 5).
Fertilizer is placed into the trench by tubes which are
independent from seed tubes.
Fertlizer is deposited onto the ground in front of the seed
outlet.
Seed meter
Chevron wheel-type meter, variable rate carried out by
means of an independent 27-speed gearbox - featuring
low and high speed options (Picture 6).
Lucerne (Alfalfa) meter (Optional)
Straight fluted meter with fixed opening (non-displa-
ceable), variable rate carried out by means of an
independent 27-speed gearbox – featuring low and high
speed options (Picture 7). Lucerne may drop together with
seeds or independently through a specific tube situated
behind the seed firmer and in front of the closing wheel.
Picture 4
Picture 5 Picture 6 Picture 7
A
AB C C
G
F
D DE B

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Speed gearboxes:
Planting and fertilizing variable rates are carried out by means of independent 27-speed gearboxes – featuring low and high
speed options (Pictures 8, 9, and 10).
Picture 8
Seed Box
Picture 9
Fertilizer Box
Picture 10
Lucerne Box
D) Technical specifications for TD 21 models
Row spacing
Number of modules
Number of rows 48
10,08 m
Working width
Seeds/Fertilizer meter
Lucerne (alfalfa) meter
Seeds, fertilizer and lucerne rates
Chassis/row unit link
Down force spring-loaded row unit
Opener disks
Opener disks, gauge wheels and
closing disks hubs
Gauge wheels
Seed firmer
Closing wheels
Closing wheels adjustment
Seed box capacity
Fertilizer box capacity
Work tires
Endwise transport
Net weight (approx.)
Required power (approx.)
Seed firming skid - Optional: seed press wheel
Two notched disks
Down pressure force and angle of attack
Two adjustable expansion springs
Sealed with double conical bearings - Adjustable
Two per row, with metal cleaner edge
Chevron wheel - type
Straight fluted meter
27-speed gearbox
Parallel arms system
Seeder/Planter TD 21
21 cm
18
3,78 m
24
5,04 m
30 (optional 32)
6,30 m
36
7,56 m
Uno Dos
900 L
900 L
120 L
1,200 L
1,200 L
160 L
1,700 L
1,700 L
200 L
1,800 L
1,800 L
240 L
2,400 L
2,400 L
320 L
Four (400/60
x15,5” 14 PR)
Four
(11 L15” 10 PR)
Eight
(400/60x15,5” 14 PR)
Four
(14x17,5” 14 PR)
No
5,050 kg
85 - 95 hp
Yes
6,150 kg
100 - 120 hp
Yes
8,200 kg
130 - 150 hp
Yes
10,080 kg
165 - 180 hp
Yes
12,320 kg
200 - 240 hp
15.5" double disks - system
Lucerne (alfalfa) box capacity

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This machine is equipped with an exclusive design “FILAM System”, which has been awarded “Silver Medal” to
Farm Machines Innovation by Ternium Siderar.
It features disks with internal edge and metal-lipped
gauge wheels. This system highly improves the traditional
double-disk row units as regards functionality, durability
and maintenance.
This system aims at optimizing the job performed by the
gauge wheel - cleaning the opener disks, and bettering
furrow bottom uniformity, as well as improving disk and
semi-pneumatic rubber tire lifetime.
When working on extremely wet, clayey, stubble-covered
or weedy soil, blocking may affect the proper operation of
the gauge wheel. When practicing no-tillage, the density
of stubble is higher, so stiff or sharp components in the
soil produce fast wear on the semi-pneumatic tire and
even more wear on the cleaner rubber lip, thus failing to
fulfill its function.
To solve this problem, the new rim helps to keep
wheel/soil contact distant from the opener disk, allowing
better relief of excessive stubble or crumbled soil due to
disks work.
Another innovation is the replacement of the rubber
cleaner lip by a metal one which is more resistant, suffers
less wear, and forms part of the gauge wheel rim, thus
improving the rubber tire useful life and an even and
continuous cleaning job on the disks (Pictures A and B).
On the other hand, traditional disks get in contact during
a very short period of working time. As soon as they start
wearing off, they separate, thus increasing flexion efforts
and forming a W-shaped furrow bottom, which becomes
gradually deeper (Pictures C and D).
The innovation is about:
New opener disks, conically stamped at external rim,
15.5” diameter, 5mm thickness and internal edge, where
continuous contact between disks is achieved during their
useful life. This contact increases resistance of the set and
relieves it from flexion, producing an even furrow bottom.
Conically stamped at external rim producing less angle of
attack, what diminishes forward ride resistance.
The relief angle resulting from both disks cut is conver-
gent, making a narrower furrow with less crumbling soil.
Picture C
Picture D
Picture A
INNOVACIÓN
Picture B
✔ Triples useful life of all main components
in the row unit.
✔ More hectares worked with less maintenance
jobs.
✔ Even furrow bottom.
✔ Less forward ride resistance.
✔ Internal edge in disks keep them in
permanent contact.

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Internal-edged disks and metal-lipped gauge wheel. Improved system over traditional double disk row units as regards
functionality, durability and maintenance.
FORGED STEEL HUB
EXTERNAL HALF RIM
SEMI-PNEUMATIC TIRE CONVERGENT RELIEF
ANGLE TO DIG
NARROWER
FURROWS WITH LESS
CRUMBLING SOIL
HALF RIM WITH METAL
CLEANER EDGE TO ENABLE
DISK CLEANING,
CONICAL OPENER
DISK
15.5” DIAMETER
5MM THICKNESS
SUNK CENTER
WITH INTERNAL HUB
3-RIMMED SEAL
STANDARD ADJUSTABLE
CONICAL BEARINGS
HUB COVER AND RING
The disk is anchored
to the internal side
of the hub to counteract
axial forces when working
New shape to improve
performance avoid stubble inlet and
increase tire useful life
Patent pending N°050104776
Better resistance
and durability
Highly resistant to axial load
DEPTH CONTROL
SEPARATE FROM
THE DISK TO ENSURE AN
EVEN PLANTING DEPTH
DECOMPACTED AREA
Does not interrupt gauge
wheel operation
CONTACT AREA DISTANT
FROM THE DISK
Compacted area
INTERNAL EDGE,
CONTINUAL CONTACT
Produces less flexion in disks,
keeps the same furrow shape along
its useful life,
narrower angle of attack and offers
less forward ride resistance

11
Disks are in
continual
contact.
Opener disk,
sunk in the
center.
Opener disk,
sunk in the
center.
Contact area.
Compacted
soil area.
Decompacted
soil area.
No contact
between disks
decreasing
performance
when shaping
furrow and
placing seeds.
Worn lip causes
gauge wheel/disk
separation.
Internal-edged disks - metal-lipped gauge wheel
Traditional system – not worn out disks – not worn out disks
Traditional system
15 mm worn out disk radius 15 mm worn out disk radius

12
ADJUSTMENTS��
A) Operating guidelines
1- Use tractor with the following features:
2- Work speed - 6/8 km/h.
3- Clean quick attach couplings terminals before
connecting to tractor.
4- Never ride backwards or turn with opener disks in
contact with the ground.
5- Start moving forward before lowering opener disks.
6- Handle and use chemical-treated seeds, and
agrochemicals in general, as specified by manufacturer.
7- Check seed and fertilizer rates.
8- Check machine periodically. Whenever soil conditions
determine a change in planting depth and seed covering,
readjust if necessary.
9- Seeds setting is determined by considering the
combination of the following adjustments:
a) Depth adjustment of front no-till coulters.
b) Adjustment of gauge wheels of the openers disk set.
c) Openers down-pressure force.
d) Ridge-shaping closing wheels down-pressure force.
B) Operating machine:
1- Place the machine on level ground with enough room
to move the machine from transport to work position.
Moving the equipment will be very difficult, unless one, or
more, wheel is oriented and locked to the direction
desired to ride forward.
2- Connect work hitch cylinder to tractor hydraulic system.
3- Remove pin from safety bar.
4- Operate cylinder to lower hitch.
5- Open out the tip found in the hitch rod to tractor and fix
with its pin.
6- Keep lowering machine to level with tractor drawbar
and couple by locking with a pin.
7- Finish closing cylinders completely, disconnect and
place hoses in planter.
8- Connect work hitch to tractor.
9- Place machine on flat steady ground.
10- Unlock all wheels.
11- Keeping hydraulic system connected to tractor, raise
machine to release cylinder locks.
12- Remove locks from hydraulic cylinders (Picture 11-A),
which can be placed at the holding tubes (Picture 12 and
Picture 13).
13- Check that machine is lowering and raising according
to operator´s needs.
14- In working position: lower machine fully – till cylinders
are operated to full stroke. Leave 1 or 2 cm of visible
threading (Picture 14-A) in each cylinder.
15- Place front wheels in work position and lock them up.
16- Before loading the box with seeds or fertilizer, adjust
opener disks depth and furrow closing.
17- Fill boxes with seeds or fertilizer, accordingly.
18- Select gearboxes speed according to chosen applica-
tion rates.
CHAPTER III
Features
Minimum power required (approx.) PTO
Hydraulic circuit minimum flow-considering
average revolutions at work
Hydraulic circuit pressure
(maximum accepted)
Models
150 - 170 bars.
55 liters/minute
TD21-18 TD21-30TD21-24 TD21-36 TD21-48
85 - 95 hp 100 - 120 hp 130 - 150 hp 165 - 180 hp 200 - 240 hp
For a proper planter operation,
always operate hydraulic cylinders
at full strokes, either when lowering
or raising the machine.
WARNING
WARNING
WHEN ATTACHING SEEDER TO TRACTOR
Tractor should be
in oblique angle to
seeder to favor
unlocked wheels
alignment.

13
C) Closing seeds outlet to block operation at alternate
seeding rows:
• Be sure to cover the seeds outlets which correspond to
the seeding rows you want to block for operation (Picture
15-A) .
• Remember to remove the star at the ejecting system
from the blocked outlets.
• The fertilizer box outlets matching the blocked seeds
outlets must also be closed (Picture 16-A).
To block row units, proceed as follows: the row units,
which are not going to be used, will be lifted onto a espe-
cially designed plate for the machine (Picture 17-A).
Keep the machine on even, steady ground and proceed
as follows:
a) Set the springs in all units in the position with the least
down pressure (backwards).
b) Lift front coulters to top.
c) Thread lifting hydraulic cylinders stop-ends fully.
d) Lower planter completely (till cylinders stop-ends).
e) Place the especial plate between the upper parallel
arm and the supporting arm of the unit that will be kept in
raised position.
Picture 12
Picture 13
Picture 15Picture 16
Picture 17
Picture 14
Picture 11
A
A
A
A
A

14
In this way, the row units that are not going to be used and
the planter configuration are as follows:
D) Speed gearboxes:
To vary planting, fertilizing and lucerne rates, the machine
counts on independent gearboxes, which are operated in
the same way (Picture 18).
To shift gears proceed as follows:
* Keep the machine raised and still. Make the drive wheel
turn while you move the levers towards the desired
position till they are placed over the line marked below
the corresponding letter or numeral.
* Shift gears smoothly, do not hit levers.
* The 27 speeds are the result of the combination of each
lever position according to the rates chart. It also counts
on LOW and HIGH gears options.
The speed-gearboxes, if front viewed, have three levers
with three positions each which are identified in the
following way:
The seeds and fertilizer discharge
outlets that are blocked,
must correspond to the raised
row units.
I I I I I I
LEFT CENTER RIGHT
Roman numerals Letters Arabic numerals
1 2 3
A B C
Picture 18
Seeds gearbox Fertilizer gearbox Lucerne gearbox
MODEL
TD 21 X 18 rows (one module)
TD 21 X 24 rows (one module)
TD 21 x 30 rows (one module)
TD 21 x 36 rows (two modules)
TD 21 x 48 rows (two modules)
NUMBER
OF ROWS
9
12
15
18
24
ROW SPACING
42 cm
42 cm
42 cm
42 cm
42 cm
LOCKING ROW UNITS
WARNING
1)

15
E) Openers down-pressure adjustment
1) Adjustment of openers down-force load is achieved by
a rocking arm with two possible load positions.
Maximum down-force load: frontwards (Picture 19-A)
Minimum down-force load: backwards (A socket wrench
should be used to carry out the change) (Picture 20).
Too much down-force load may increase parts
wear and drive resistance.
Picture 19Picture 21
Picture 20
SEEDS RATE FERTILIZER RATE LUCERNE RATE
Examples:
To obtain speed 20- LOW,
set handles in the following way:
Then, check that the driven sprocket
in the countershaft is
the 40-tooth sprocket (z40).
To obtain speed 20- HIGH
the driven sprocket
in the countershaft is the
26-tooth sprocket (z26).
To obtain speed 20- LOW,
set handles in the following way:
To obtain speed 20- LOW,
set handles in the following way:
LEFT III
CENTER A
RIGHT 2
Then, check that the driven sprocket
in the countershaft is
the 40-tooth sprocket (z40).
To obtain speed 20- HIGH
the driven sprocket
in the countershaft is the
20-tooth sprocket (z20).
LEFT III
CENTER A
RIGHT 2
Then, check that the
output gearbox sprocket is the
12-tooth sprocket.
To obtain speed 20- HIGH
the driven sprocket
in the countershaft is the
19-tooth sprocket (z19).
LEFT III
CENTER A
RIGHT 2
Minimum down-force Maximum down-force
A
A
WARNING
1)

16
F)
I-7226 (D)
USEFUL CALCULATOR TO VERIFY SEED /FERTILIZER RATES
The information on seeding/ fertilizing rates shown in the chart are approximate values and may vary due to hectolitrical weight and size of the different products, that is why we recommend doing the following trial:
1.Fill in box with seeds or fertilizer, accordingly. 2.Place small bags at 2 meters. 3.Depending on row distance: 4- Weigh both samples together and divide this amount (in grams) by two.
ROW DISTANCE: 19, 21, 38, 42 cm
SEEDERS
MD - TD
The result obtained in grams, will be directly the kg/ha the seeder is applying while riding forward during the trial (preferably N° 15)
NOTE: if the trial is done in speed shift N° 15, divide the kg/ha you want to use by the resulting amount got from the trial,
this will give you the gear ratio to be used.
or while machine is working, ride forward or while machine is working, ride forward or while machine is working, ride forward or while machine is working, ride forward
24
21.5
12
10.8
make drive wheel turn make drive wheel turn make drive wheel turn make drive wheel turn
times times times times
52.6 47.6 26.3
23.8
m m m m
Row spacing Row spacing Row spacing Row spacing
19 21 38 42
cm
cm
cm cm

17
G)
Kg/ha
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27
GEAR RATIO
SPEED GEAR N°
0.45 0.48 0.50 0.53 0.56 0.60 0.63 0.67 0.70 0.75 0.80 0.84 0.89 0.94 1.00 1.06 1.12 1.19 1.25 1.32 1.41 1.48 1.57 1.66 1.76 1.87 1.97
I-7253 (B)
22 72 14 47 14 47
9
30
11
39
8
25 23 78 15 51 20 66 13 43 20 67 13 44 14
23 77 15 50 15 50 10 32 12 41
8
27 25 83 16 54 21 70 13 46 22 72 14 47 15
24 81 16 52 16 52 10 34 13 43
9
28 26 87 17 57 22 73 14 47 23 75 15 49 16
25 85 17 55 16 55
11
36 13 46
9
30 28 92 18 60 23 77 15 50 24 79 15 51 16
27 90 17 59 17 58
11
38 14 48 10 31 29 97 19 63 25 82 16 53 25 83 16 54 17
Z26 Z26 Z40 Z40 Z26 Z26 Z40 Z40 Z26 Z26 Z40 Z40 Z26 Z26 Z40 Z40 Z26 Z26 Z40 Z40 Z26 Z26 Z40 Z40 Z40
Z47 Z14 Z47 Z14 Z47 Z14 Z47 Z14 Z47 Z14 Z47 Z14 Z47 Z14 Z47 Z14 Z47 Z14 Z47 Z14 Z47 Z14 Z47 Z14 Z47
RYE
BARLEY
OATS
WHEAT
SOYBEAN
SORGHUM
MILLET
29 97 19 63 19 62 12 41 15 52 10 34 31
104
20 68 26 88 17 57 27 89 17 58 19
30
101
20 66 20 66 13 43 16 54
11
35 33
109
21 71 28 92 18 60 28 94 18 61 20
32
108
21 70 21 70 14 45 17 58
11
37 35
116
23 76 29 98 19 64 30
100
19 65 21
34
113
22 73 22 73 14 47 18 60 12 39 36
121
24 79 31
102
20 66 32
104
20 68 22
36
121
23 78 23 78 15 51 19 65 13 42 39
130
25 85 33
110
21 71 34
112
22 73 23
38
129
25 84 25 83 16 54 20 69 14 45 42
138
27 90 35
117
22 76 36
119
23 78 25
40
135
26 88 26 87 17 57 21 72 14 47 44
145
28 95 37
123
24 80 38
125
24 81 26
43
143
28 93 28 93 18 60 22 77 15 50 46
154
30
101
39
130
25 84 40
133
26 86 28
45
151
29 98 29 98 19 64 24 81 16 53 49
163
32
106
41
137
26 89 42
140
27 91 29
48
161
31
105
31
104
20 68 25 86 17 56 52
173
34
113
44
146
28 95 45
149
29 97 31
51
171
33
111
33
110
21 72 27 91 18 59 55
183
36
120
47
155
30
101
48
158
31
103
33
54
180
35
117
35
116
23 76 28 96 19 63 58
194
38
127
49
164
31
106
50
167
32
109
35
57
192
37
125
37
124
24 80 30
102
20 67 62
206
40
134
52
174
33
113
54
177
35
115
37
60
201
39
131
39
130
25 85 31
108
21 70 65
216
42
141
55
183
35
119
56
186
36
121
39
63
213
41
138
41
137
27 89 33
114
22 74 69
228
45
149
58
193
37
125
59
197
38
128
41
68
227
44
148
44
147
28 95 35
121
24 79 73
244
48
159
62
206
39
134
63
210
41
137
44
71
238
46
155
46
154
30
100
37
127
25 83 77
256
50
167
65
216
41
140
67
221
43
144
46
75
253
49
164
49
163
32
106
39
135
27 88 82
272
53
177
69
229
44
149
71
234
46
152
49
80
267
52
174
51
173
33
112
42
143
28 93 86
287
56
188
73
242
46
158
75
247
48
161
51
84
283
55
184
55
183
35
119
44
151
30 98 92
304
59
199
77
257
49
167
79
262
51
171
55
90
301
58
196
58
194
38
126
47
161
32
105
97
324
63
211
82
273
52
177
84
279
54
181
58
94
317
61
206
61
205
40
133
49
169
33
110
102 341
67
223
87
288
55
187
89
294
57
191
61
SEEDS – CHEVRON WHEEL-TYPE METER
DRIVE GEAR
SPROCKET
IDLER GEAR
SPROCKET
Seeder: MD 21 - TD 21
Information in seeding rate chart is approximate and may vary due to hectolitrical weight, seeds humidity and size.
ROW SPACING: 21CM

18
H)

19
I)
To shift gears keep the machine raised and still.
Make the drive wheel turn forwards and backwards while you move the levers towards the desired position
till they are placed over the line marked below the corresponding letter or numeral.
LEVERS POSITION IN GEARBOXES
SPEED GEAR NUMBERS
IA1 IA2 IA3 IB1 IB2 IB3 IC1 IC2 IC3 IIA1 IIA2 IIA3 IIB1 IIB2 IIB3 IIC1 IIC2 IIC3 IIIA1 IIIA2 IIIA3 IIIB1 IIIB2 IIIB3 IIIC1 IIIC2 IIIC3
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27
Kg/ha
ROW SPACING: 21 cm
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27
GEAR RATIO
SPEED GEAR N°
0.45 0.48 0.50 0.53 0.56 0.60 0.63 0.67 0.70 0.75 0.80 0.84 0.89 0.94 1.00 1.06 1.12 1.19 1.25 1.32 1.41 1.48 1.57 1.66 1.76 1.87 1.97
Seeder:MD 21 - TD 21
WEIGHT/HAFERTILIZER GEAR SPROCKET
FERTILIZER
I-3440 (B) LOW: countershaft sprocket: 40 teeth - HIGH: countershaft sprocket: 20 teeth.
Information in fertilizer rate chart is approximate and may vary due to hectolitrical weight, seeds humidity and size.
LOW Z40
HIGH Z20
LOW Z40
HIGH Z20
LOW Z40
HIGH Z20
75
100
112
MONO-
AMMONIUM
PHOSPHATE
(MAP)
DIAMMONIUM
PHOSPHATE
(DAP)
UREA
62 96 82
125
92
141
58 90 77
117
86
132
55 85 73
111
81
125
52 81 69
106
77
119
49 76 65
100
73
112
47 72 61 94 69
106
44 68 58 89 65
100
41 64 55 84 61 94
39 61 52 79 58 89
37 57 49 75 55 84
35 54 46 71 52 80
33 51 44 67 49 75
31 48 41 62 46 70
29 46 39 60 44 67
28 43 37 56 41 63
26 41 35 53 39 60
25 38 32 50 36 56
23 36 31 47 34 53
22 34 29 45 33 50
21 33 28 43 31 48
20 31 26 40 29 45
65
101
86
132
96
148
69
107
91
140 102 157
73
113
96
148 108 166
77
120 102 157
114
176
82
127 108 166 122 187
87
134
114
175 128 197