Farmet DIGGER 3 N User manual

DIGGER
33 NN |44 NN
Edition: 3Effective from: 01.05.2015
FARMET a.s.
Jiřinková 276
552 03 Česká Skalice, CZ
phone: [phone]
fax: [phone]
GSM: [phone]
IČ: 46504931
DIĆ: CZ46504931
www.farmet.cz
e-mail: [email protected]
OPERATING MANUAL
DDIIGGGGEERR
33 NN |44 NN

2 | 41
Prepared by: Technical Department, Farmet a.s.
on 12.10.2018, changes reserved

PREFACE
3 | 41
PREFACE
Dear customer,
The agricultural machine you have purchased is a high-quality product of Farmet a.s. Česká Skalice.
You can fully utilise the advantages of your machine after thoroughly studying the operating manual.
The serial number of the machine is punched on the production label and written in the operating
manual (Your Machine Characteristics). This machine serial number must be stated whenever ordering spare
parts for possible repairs. The production label is located on the frame .
Use only spare parts for these machines according to the Spare parts catalogue officially issued by
the manufacturer, Farmet a.s. Česka Skalice.
POSSIBILITIES OF USE OF THE CULTIVATOR
The chisel plough DIGGER is designed and intended for in-depth soil loosening up to the depth of 500
mm (see also Chapter – Purpose of in-depth Soil Loosening).
!!! ATTENTION: During deep cultivation, there is a risk of damaging underground communication and
power lines. Prior to using the deep cultivator, it is necessary to seek the opinion of the operating
manager of such equipment (telephone, gas, power lines, etc.).
YOUR MACHINE CHARACTERISTICS:
MACHINE TYPE :
MACHINE SERIAL NUMBER :
SPECIAL DESIGN OR ACCESSORIES :

PREFACE
4 | 41
IMPORTANT
READ CAREFULLY BEFORE USE
KEEP FOR FUTURE REFERENCE

PREFACE
5 | 41
Contents
PREFACE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1 MACHINE LIMIT PARAMETERS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.1 Technical parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
1.2 Safety statement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2 NERAL INSTRUCTIONS FOR USE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3 MACHINE TRANSPORT USING TRANSPORT MEANS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4 MACHINE HANDLING USING LIFTING EQUIPMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
5 WORK SAFETY LABELS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
6 DESCRIPTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
6.1 Working parts of the machine. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
6.2 Hydraulics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
6.3 Purpose of in-depth soil loosening. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
7 MACHINE ASSEMBLY AT THE CUSTOMER. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
8 COMMISSIONING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
8.1 Agregation to a tractor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
8.2 Hydraulics connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
8.3 Hydraulic protection function of the machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
9 MACHINE TRANSPORT ON ROADS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
10 MACHINE ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
10.1 Adjusting the working depth of the machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
10.2 Work with one row of ploughshares . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
10.3 Setting the leveling discs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
10.4 Setting of the roller inclination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
11 Optional equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
11.1 Hydraulic control of leveling discs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
11.2 Side deflectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
12 MACHINE MAINTENANCE AND REPAIRSE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
13 MACHINE STORAGE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
14 MACHINE LUBRICATION SCHEDULE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
15 ENVIROMENTAL PROTECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
16 MACHINE DISPOSAL AFTER SERVICE LIFE EXPIRY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
17 SERVICING AND WARRANTY CONDITIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
17.1 Servicing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
17.2 Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

PREFACE
6 | 41

7 | 41
MACHINE LIMIT PARAMETERS
1 MACHINE LIMIT PARAMETERS
• The machine is designed for soil cultivation up to a depth of 50 cm (19.7 in) when agricultural soil
cultivation. Another type of use exceeding the determined purpose is forbidden.
• The machine is only operated by one person – the tractor driver.
• Machine operator must not use the machine in a different way, especially:
• Transport of persons and animals on the machine structure,
• Transport of burdens on the machine structure,
• Aggregation of the machine with another towing equipment than stated in Chapter
8.1.

MACHINE LIMIT PARAMETERS
1.1 Technical parameters
PARAMETERS DIGGER 3 N DIGGER 4 N
Working width 2,90 m (9,51 ft) 3,90 m (12,79 ft)
Transport width 2,99 m (9,81 ft) 3,99 m (13,09 ft)
Transport height 1,79 m (5,87 ft)
Machine total length 4 m (13,12 ft)
Working depth 25 – 50 cm (9,84 – 19,69 in)
Number of shares (chisel) 7 9
Working performance 2,4– 3,6 ha/h
(5,93 – 8,90 ac/h)
3,1 – 4,7 ha/h
(7,66 – 11,61 ac/h)
Towing means 180 – 270 kW
(241 – 362HP)*
240 – 360 kW
(321 – 483 HP)*
Working speed 8–12 kph (5 - 7,5 mph)
Maximum transport speed 25 kph (15,54 mph)
Maximum slope grade 11(°)
Machine weight 2800 kg
(6173 lb)
3700 kg
(8157 lb)
*Recommended towing means, the real towing force may significantly vary according to the processing
depth, soil conditions, land slope, working body wear and adjustment.
1.2 Safety statement
This warning sign warns about an immediate dangerous situation ending with death or
severe injury.
This warning sign warns about a dangerous situation ending with death or severe injury.
This warning sign warns about a situation that may end with a smaller or slight injury. It
also warns about dangerous actions related to the activity that could lead to an injury.
8 | 41

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NERAL INSTRUCTIONS FOR USE
2 NERAL INSTRUCTIONS FOR USE
• The machine is made in accordance with the latest equipment state and approved safety
regulations. However, dangers of user or third person injury or machine damage or
creation of other material damage may arise during use.
• Use the machine only in a technically sound condition, in accordance with its purpose,
aware of possible dangers, and while adhering to the safety instructions of this operating
manual!
The Manufacturer is not liable for damages caused by the use of the machine that is in
contradiction with the limit parameters of the machine and with the instructions for the
use of the machine. The User bears the risk.
Immediately remove especially the failures that may negatively affect safety!
• Machine operation may be performed by a person authorised by the operator under
these conditions:
• It must own a valid driver's licence of the corresponding category,
• It must be demonstrably familiarised with the safety regulations for work with the
machine and must practically master the machine operation,
• The machine may not be operated by juveniles,
• It must know the meaning of the safety signs located on the machine. Their respecting
is important for safe and reliable machine operation.
• Maintenance and servicing repairs on the machine may only be performed by a person :
• Authorised by the operator,
• Educated in the machinery field with knowledge of repairs of similar machines,
• Demonstrably familiarised with safety regulations for work with the machine,
• During a repair of a machine connected to a tractor, it must own a driver's licence of
the corresponding category.
• Machine operator must secure the safety of other persons when working with the
machine or transporting the machine.
• During machine work in the field or during transport, the operator must control the
machine from the tractor's cabin.
• The operator may enter the machine structure only with the machine at rest and blocked
against movement, namely only for these reasons:
• Adjustment of the machine working parts,
• Repair and maintenance of the machine,
• When stepping on the machine, do not step on roller tyres or other rotary parts. Those
may turn and you can cause very serious injuries by the subsequent fall.
• Any changes or modifications of machine may be performed only with written consent of
the manufacturer.
For possible damage arisen due to ignoring this instruction, the producer bears no
responsibility.
The machine must be maintained equipped with prescribed accessories and equipment
including safety marking.
All warning and safety signs must be legible and in their places. In case of damage or loss,
these signs must be immediately renewed.
• The operator must have the Operating Manual with the work safety requirements
available at any time when working with the machine.

NERAL INSTRUCTIONS FOR USE
• The operator must not consume alcohol, medicines, narcotic and hallucinogenic
substances that decrease his attention and coordination capabilities while using the
machine.
If the operator must use medicines prescribed by a physician or uses freely sold
medicines, he must be informed by a physician, whether he is capable of responsible and
safe operation of the machine under these circumstances.
Protective tools :
For operation and maintenance use:
• tight clothes
• protective gloves and goggles against dust and
sharp parts of the machine
10 | 41

11 | 41
MACHINE TRANSPORT USING TRANSPORT MEANS
3 MACHINE TRANSPORT USING TRANSPORT MEANS
• The transport means designed for machine transport must have the load capacity minimally
identical with the weight of the transported machine. The total weight of the machine is stated
on the production label.
• The dimensions of the transported machine including the transport means must comply with
the valid regulations for road traffic (decrees, laws).
• The transported machine must be always fastened to the transport means so that its
spontaneous loosening could not happen.
• The carrier is responsible for damage caused by the loosening of incorrectly or insufficiently
fastened machine to the transport means.

12 | 41
MACHINE HANDLING USING LIFTING EQUIPMENT
4 MACHINE HANDLING USING LIFTING EQUIPMENT
• The lifting equipment and tying means designed for handling of the machine must have their
load capacity at least identical with the weight of the handled machine.
• Machine fastening for handling may only be performed in places designed for that and
marked with self-adhesive labels showing the "chain" symbol.
• After fastening (suspending) at designated points, it is forbidden to move in the space of
possible reach of the handled machine.

13 | 41
WORK SAFETY LABELS
5 WORK SAFETY LABELS
Warning safety labels serve for operator protection.
General:
• Strictly observe the warning safety labels.
• All safety instructions also apply to other users.
• Upon damage or destruction of the aforementioned "SAFETY LABEL" located on the machine, THE
OPERATOR IS OBLIGED TO REPLACE IT WITH A NEW ONE!
• The position, appearance, and precise meaning of work safety labels on the machine is determined in
the following tables and in the figure (Fig. 1).
WARNING SAFETY LABEL LABEL TEXT MACHINE
POSITION
Before handling the machine, carefully read the
operating manual.
Observe the instructions and safety regulations
for machine operation during use. P 1 H
When connecting or disconnecting, do not step
between the tractor and the machine, also do
not enter this space, if the tractor and the
machine are not at rest and the engine is not
turned off.
P 2 H
Stay out of reach of the drawn-up machine. P 4 H
Stay outside the reach of the tractor -
agricultural machine set, if the tractor engine is
in operation. P 6 H
For transport, as well as for work, the side
foldable discs must be secured with a pin. P 13 H
When handling the side discs, do not touch the
area of the folding joint. P 20 H

WORK SAFETY LABELS
Travelling and transport on the machine
structure is strictly forbidden. P 37 H
It is forbidden to dismantle or remove any
hydraulic part when under pressure. P 40 H
The pressure container is under the pressure of
gas and oil. For disassembly and repair, follow
the instructions from the manual only. P 42 H
Do not approach the rotary parts of the
machine, if these are not at rest, i. e. they do
not turn. P 53 H
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WORK SAFETY LABELS
Fig. 1 - Location of safety labels on the machine
15 | 41

16 | 41
DESCRIPTION
6 DESCRIPTION
The DIGGER 3 N, 4 N machines are structurally designed as a mounted machines.
The chisel plough is fitted with a three-point suspension TPS 3 and 4. The machine consists of the main
frame which is fitted with two rows of shanks with ploughshares which are protected by automatic hydraulic
protection and a shear bolt against overload. Behind the rear row of ploughshares, there is the parallel push
linkage with which it is possible to adjust the height of the beam with packing discs and the rear roller.
6.1 Working parts of the machine
1. Three-point suspension
2. Supporting frame
3. Setting of the position of the roller and discs
4. Rear frame rollers
5. TPS towing suspension
6. Front share row
7. Rear share row
8. Packing discs
9. Crumbling roller

DESCRIPTION
6.2 Hydraulics
Fig. 2 - Hydraulic diagram of the DIGGER 3 N machine
Fig. 3 - Hydraulic diagram of the DIGGER 4 N machine
1 – Control distributor (tractor)
2 – Hydraulic coupling
3 – One-way hydraulic shut-off valve
4 – Manometer
5 – Pressure accumulator
6 – Hydraulic roller (protection of the first row of
ploughshares)
7 – Hydraulic roller (protection of the second row
of ploughshares)
8 – Hydraulic roller (rear roller)
9 – Hydraulic shut-off valve
10 – Closing cock
Parts of the hydraulic system of the machine, which are under pressure, are forbidden to
disassemble. Hydraulic oil that penetrates the skin under high pressure causes severe injuries.
In case of injury, seek a physician immediately.
17 | 41

DESCRIPTION
6.3 Purpose of in-depth soil loosening
In-depth soil loosening is a soil-improving intervention that mechanically scarifies compacted layer of
soil. Depth looseners can also be used in soil-protection cultivating systems where the soil is in-depth loos-
ened with a minimum surface failure. This can be effectively used with deep soils in more arid areas where
there is a danger of wind erosion.
In-depth loosening can also be used for other purposes such as zvincreasing water-accumulation capacity
of soil and/or draining surface water into deeper parts of the soil profile.
Loosening the compacted layers under topsoil enables crop roots to penetrate deeper, which results in
higher crop yield.
Conditions for effective in-depth soil loosening
The basic condition for effective in-depth loosening (around 0,5 m) is the appropriate soil moisture in
the depth of loosening. The soil should be crumbly and always under the limit of plasticity and it must not
show plastic deformations when being loosened. Loosening soil with excessive moisture can be counterpro-
ductive. If the soil to be loosened is extremely dry, the working resistance acting on the Loosener is enor-
mous. To decide on the soil conditions it is advisable to use a probing rod. When applying pressure on a soil
sample, the soil should fall to smaller lumps.
18 | 41

19 | 41
MACHINE ASSEMBLY AT THE CUSTOMER
7 MACHINE ASSEMBLY AT THE CUSTOMER
• The operator must perform the assembly according to the instructions of the producer,
best in cooperation with the expert servicing technician determined by the producer.
• The operator must secure a functional test of all assembled parts after the completion
of the machine assembly.
• The operator must secure that the handling of the machine using lifting equipment during
its assembly is in accordance with chapter „4“.

20 | 41
COMMISSIONING
8 COMMISSIONING
• Before taking over the machine, test and check, whether damage occurred during transport
and whether all parts contained in the bill of delivery were supplied.
• Before commissioning the machine, carefully read this operating manual, especially Chapters
1–5. Before the first use of the machine, familiarise yourselves with its controls and overall
function.
• During work with the machine, observe not only the instructions of this operating manual but
also generally valid regulations of work safety, health protection, fire and transport safety, and
environmental protection.
• The operator must check the machine before every use (commissioning) from the standpoint
of completeness, work safety, work hygiene, fire safety, transport safety, and environmental
protection. A machine showing signs of damage must not be commissioned.
• Aggregation of the machine with the tractor is to be performed on a flat and hardened
surface.
• When working on slopes, observe the lowest slope grade of the set TRACTOR - MACHINE.
• Before starting the tractor motor, check whether no person or animal is in the working space
of the set and push the warning sound signal.
• The operator is responsible for the safety and all damage caused by the operation of the
tractor and the connected machine.
• The operator is obliged to adhere to the technical and safety regulations of the machine
determined by the producer when working.
• The operator is obliged to retract the working bodies of the machine from the ground when
turning at the headland.
• The operator is obliged to observe the prescribed working depths and speeds stated in the
manual in Chap.1 when working with the machine.
• The operator is obliged to lower the machine to the ground and secure the set against
movement before leaving the tractor cabin.
• Lower the machine with caution so that the chisels and shares are not damaged by sharp
lowering to the ground. Position the machine on a flat ground so that the weight of the
machine is evenly transferred to all shares.