PIEROBON TD 21 Series Guide

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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

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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

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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.

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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.

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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

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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.