UNIA CROSS S Operating instructions

OPERATING AND MAINTENANCE MANUAL CROSS S
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CE Declaration of Conformity
CE Declaration of Conformity
UNIA Sp. z o.o.
st. Szosa Torunska 32/38
86 – 300 Grudziadz, Poland
Herewith declare with full responsibility that our product:
cultivator for simplified tillage
CROSS
type / model : …………………………………….
manufacturing year : ……………………………..
serial no. : ………………………………………..
is in compliance with the Ordinance of the Minister of
Economy of October 21, 2008 (Journal of Laws No. 199, item
1228) and the EU Directive 2006/42/EC of May 17, 2006 and
the Ordinance of the Minister of Infrastructure of May 4, 2009 (
Journal of Laws No. 75/2009, item 639) and the following
standards:
PN-EN ISO 12100:2012
PN-EN-ISO 13857:2010
PN-ISO 3600:1998
PN-EN-ISO 4413:2011
PN-ISO 11684:1998
PN-EN 349+A1:2010
PN-EN ISO 11688-1:2010
PN-EN 14017+A2:2009
PN-EN ISO 4254-1:2016-02
PN-EN 13739-1:2012
This CE Declaration of Conformity is no longer valid if the
machine has been modified or reconstructed without the
manufacturer’s consent.
Grudziądz, 05.12.2017

OPERATING AND MAINTENANCE MANUAL CROSS S
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UNIA Sp. z o.o.
st. Szosa Torunska 32/38
PL 86 – 300 Grudziadz
tel. + 48 56 451 05 00
fax. + 48 56 451 05 01
Service tel. + 48 56 451 05 26
uniamachines.com
CROSS S
MAINTENANCE AND OPERATING
MANUAL
Machine identification data:
Type
Production year
Serial no.
This maintenance and operating manual is an integral part of the
machine. It is important that the manual is always in the possession
of the machine user. Access to the manual should be provided to
machine operators and cooperating persons while operation,
regulation, repairs and renovations.
Before starting the machine please read the
operating manual and follow the recommendations
and instructions regarding safety and proper usage of
the machine.

OPERATING AND MAINTENANCE MANUAL CROSS S
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Table of contents
PREFACE: ................................................................................................................................................. 6
1. Precautions.................................................................................................................................. 6
1.1. Before you Begin to Use Your Machine............................................................................... 6
1.2. Health and safety regulations ............................................................................................. 6
1.3. Servicing .............................................................................................................................. 7
1.4. Transport on highways ........................................................................................................ 7
1.5. Safety Symbol ...................................................................................................................... 8
1.6. Nameplate ........................................................................................................................... 9
2. Technical and Identification Data.............................................................................................. 10
2.1. CROSS Specifications .............................................................................................................. 11
3. Operating Manual ..................................................................................................................... 12
3.1. First Start ........................................................................................................................... 12
3.2. Preparation of the Unit (Tractor + Machine) .................................................................... 12
3.3. Mounting and Disconnection of machines........................................................................ 13
3.3.1. Mounted machines ................................................................................................... 13
3.3.2. Semi-mounted machines .......................................................................................... 14
3.4. Access to the Field – Transport ......................................................................................... 15
3.4.1 Mounted machines ................................................................................................... 15
3.4.2 Semi-mounted machines .......................................................................................... 16
3.5. Adjustment of the Cultivator............................................................................................. 17
3.5.1. Working Depth Adjustment - Cross .......................................................................... 17
3.5.2. Adjustment of the Working Depth of the Disc Harrow Type A................................. 18
3.5.3. Extreme Disc Adjustment in the Cross Harrow Type A............................................ 18
3.5.4. Heavy-Duty Tine, Type CX ......................................................................................... 19
3.5.5.Working Depth Adjustment in the Cross Drive ................................................................ 20
3.5.6. Working Depth Adjustment on the Drawbar in the Cross Drive............................... 20
3.5.7. Working Depth Adjustment on the Support Wheel in the Cross DRIVE (Option) .... 21
3.5.8. Adjustment of Scraping Disc Harrow Type A in the Cross DRIVE.............................. 22
3.5.9. Adjustment of Scraping Disc Harrow Type B in the Cross DRIVE.............................. 22
3.5.10. Adjustment of Extreme Disc Type B in the Cross DRIVE ........................................... 23
4. Operation (see par. II Safety) .................................................................................................... 24
5. Servicing and Maintenance ....................................................................................................... 24

OPERATING AND MAINTENANCE MANUAL CROSS S
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5.1. General .............................................................................................................................. 24
5.2. Replacement of the Machine Components....................................................................... 24
5.3. Hydraulic System ............................................................................................................... 24
5.4. Lighting .............................................................................................................................. 25
5.5. Bolt, screw and nut tightening torques (Nm).................................................................... 25
5.6 Lubrication........................................................................................................................ 26
5.7. Storage of the Cultivator ................................................................................................... 27
5.8. Disassembly and Disposal.................................................................................................. 27
5.9 Warranty Conditions and Warranty Services .................................................................... 27

OPERATING AND MAINTENANCE MANUAL CROSS S
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PREFACE:
When buying the machine, check completeness of its accessories that include the following
components:
•Operating Manual
•Warranty Card
1. Precautions
1.1. Before you Begin to Use Your Machine
•Read the instruction manual.
•Pay always special attention to the text and illustrations marked with this symbol!
•These machines are intended for agricultural use only. Any use outside of this
purpose shall be considered as not intended use. Learn how to use your machine
correctly and carefully!
•The machine may be dangerous when driven by not authorized individual or when operated
carelessly.
1.2. Health and safety regulations
•Before each start, check whether the tractor and machine are safe for road traffic and
operation!
•The tractor working with the machine must be equipped with the weights on the front axis!
Balance of the tractor with the attached machine, its steerability and braking ability must
always be kept.
•When connecting and disconnecting the machine to/from the tractor, its lifting and lowering
on the hydraulic lift of the tractor, setting the machine in the transport and working positions
and on the headlands, ensure that no bystanders and in particular children are present in the
vicinity of the machine. Perform these operations slowly, without sudden jerks!
•Never stay between the tractor and cultivator when the tractor’s engine is running!
•The machine may only be operated, maintained and repaired by the personnel who know its
construction and are aware of the existing hazards!
•There are some places where crushing or cutting may occur on the parts actuated by the
forces other than the human force (e.g. the hydraulic system). When connecting the
hydraulic hoses to the hydraulic system of the tractor, always ensure that the hydraulics is
depressurized! Check positions of the control levers of the tractor hydraulic system. Only
actuate the hydraulically operated attachments when there is nobody present within their
range of operation! Check the hydraulic hoses on regular basis and replace them with new
items when damaged or worn!
•When driving on highways with the machine attached, lock the operating lever against its
lowering!
•The attached warning and indicating signs contain information on safe work: they are
intended for your safety!

OPERATING AND MAINTENANCE MANUAL CROSS S
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•Before you start work, learn thoroughly operation of all devices and actuators and functions
of the machine. It is too late for this after you start work!
•Avoid wearing any loose clothing, which could be caught by rotating components of the
machine.
•Always keep the machine clean in order to avoid fire!
•Always check the surroundings before you start operation. Make sure that you have
sufficient visibility!!
•Never back or reverse the tractor when the machine is lowered to the working position.
When reversing, pay attention to the components that protrude far away and do not use the
independent brakes of the tractor!
•Check air pressure in the wheels of the tractor and cultivator regularly.
•Never transport people on the machine and load it with any additional weights when
operating the machine or transporting it!
•Check and attach the traffic equipment, such as lighting, warning devices and possible
protective devices.
•Observe the admissible axial loads, total weights and transport dimensions.
•Check tightness of screws and nuts on regular basis and tighten them if required.
•Always use appropriate tools and wear safety gloves when changing tools.
•The spare parts must be conforming to the revisions specified by the manufacturer. This may
only be provided by the genuine spare parts. Use typical protection devices and pins for
securing all bolts of the unit (tractor + machine). Never use any temporary means of
protection, such as screws, bars, wires etc., which can cause damage to the machine or
tractor during transport and cause a safety hazard for other road users!
•Attach and disconnect the machine to/from the tractor after having parked the machine on a
flat and hardened surface and with the tractor engine stopped. Store the machines unfolded.
•Store the machine in the locations inaccessible for unauthorized people or animals when not
in use.
•Besides the above guidelines, follow the general safety rules.
1.3. Servicing
•Service the machine when it is lowered onto the ground! If the machine is
coupled with the tractor, engine of the tractor must be off and brakes on!
•Use only tools in good technical condition and genuine materials and spare parts
for servicing.
•Always protect the machine with appropriate supports when performing any maintenance or
repair work on the machine lifted up.
1.4. Transport on highways
•Never exceed the speed limits allowed on highways and follow traffic regulations
of the respective country!
•Pay special attention when passing and overtaking other vehicles and on curves
(the unit is pivotally connected to the tractor)!

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•The machine, as the part of the vehicle that protrudes outside the rear side outline of the
tractor covering the rear lamps of the tractor, poses a threat for other vehicles in the traffic.
•When transporting the machine on highways, always use warning lights, distinguishing plate
and side reflectors.
•Maximum width of the machine, which can be moved on highways is specified in the detailed
regulations of the country of use. They should be observed.
1.5. Safety Symbol
A
Read through the Operating Manual thoroughly before operating the
machine
B
Stop the tractor engine and take away the ignition key before any
servicing and repair work
C Keep safe distance off the machine
D
Never reach into the crushing area as long as the components can
move
E Stay away of the machine tilting area
F Points of attaching hooks of the lifting equipment
G Speed limit sign
H
UWAGA
PROSIMY O REGULARNE SMAROWANIE PUNKTÓW
SMARNYCH
ATTENTION
PLEASE OIL REGULARLY LUBRICATION POINTS
UNDER THE OPERATING MANUAL
ACHTUNG
WIR BITTEN REGELMABIG DIE SCHMEIRSTELLEN
LAUT BEDIENUNGSANLEITUNG ZU SCHMIEREN
Lubricate the machine on regular basis
I
ACCORDING TO THE ROAD SAFETY REGULATIONS (REGULATION OF THE MINISTER OF
INFRASTRUCTURE OF 31/12/2002 - DZ. U. NO. 32 OF 2002, ITEM 262), DRIVE ON HIGHWAYS ONLY
AFTER HAVING OBTAINED AUTHORIZATION FROM THE COMPETENT HIGHWAYS
ADMINISTRATION BODY WHERE THE JOURNEY BEGINS.
For the machines that exceed the allowable transport width 3.0m
Safety signs and inscriptions should be protected against damage, dirt and overpainting.
Replace any damaged or illegible signs and inscriptions with new ones that are available
from the manufacturer or vendor of the machines.

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Fig 1: Location of the safety symbols - CROSS
Fig 2: Location of the safety symbols - CROSS DRIVE
1.6. Nameplate
The unit data can be found on the nameplate,
which is mounted on its front, on the left –
CROSS (3.0m; 3.5m; 4.0m) CROSS DRIVE
(3.0m; 3,.5m; 4.0m).

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2. Technical and Identification Data
CROSS cultivators are versatile units used for ploughless tillage, well-proven in the technology of
simplified cultivation, and thanks to the tines with undercutters, also for skimming;
CROSS machines are delivered in the following versions:
•CROSS – mounted cultivator consisting of 3 rows of CX tines and harrows type A and
cultivating roller, as required.
CROSS machines can also be supplied in the following version:
•DRIVE – semi-mounted or drawn cultivator consisting of 3 rows of CX tines and harrows type
B or C and tyre-and-transport roller.
The machines are manufactured in the following widths:
•3.0m; 3.5m; 4.0m – rigid version
Fig 3: Construction of CROSS
Roller jib
Warning signs set (lighting)
Strut
Suspension axle
Frame
Carriage
Tines
Harrow jig
Scraping disc harrow
Harrow adjustment
Roller
Hydraulic cylinder

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Fig 4: Construction of CROSS DRIVE
2.1. CROSS Specifications
Item Parameters U/m
Type of unit
3,0
3,0
3,5
4,0
4,0
1
Type of cultivator
-
Mounted
2
Working width
m
3
3
3,5
4
4
3
Type of harrow
pc.
A ø460
4
No. of CX tines
pc.
10
12
12
13
15
5
Tine spacing
cm
30
25
29
31
27
6
Max. working depth of tines
cm
30 (without undercutters)
7
Max. working depth of discs
cm
8÷9
8
Clearance under the frame
cm
85
9
Spacing of tine rows
cm
80
10
Working speed
km/h
10÷15
11
Effective capacity
ha/h
3.0÷4.5
3.0÷4.5
3.5÷5.25
4.0÷6.0
4.0÷6.0
12
Power demand
HP
150÷180
150÷180
160÷190
170÷200
170÷200
13
Operators
No.
one
14 Overall dimensions
L
cm
420
420
420
420
420
W
374
374
424
474
474
H
160
160
160
160
160
15
Transport width
m
3
3
3,5
4
4
16
Weight without accessories
kg
2110
2270
2470
2670
2850
Chassis
Jigs
Carriage
Turnbuckle
Suspension axle
Support
Drawbar
Frame
Tines
Harrow
Chassis cylinder
Tyre roller

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3. Operating Manual
3.1. First Start
Before the first start of the machine:
•read the Operating Manual thoroughly
•check technical condition of the unit, and in particular, condition of its working parts,
mechanisms protecting tines from overload and the hydraulic system. When finding any
damaged or worn parts, replace them with new ones
•check tightening of all screws, bolts and nuts. Tighten any loose nuts especially at the
beginning of operation of the machine
•check fitting of the quick-connectors of the hydraulic hoses of the machine to the sockets on
the tractor
•check, whether the disc coulters, rollers and spindles (turnbuckles) can rotate without any
jams
•check the pressure in tyres acc. to the manufacturer’s recommendations
•check, whether the components requiring lubrication are lubricated
•check, whether the machine attachment system fits the tractor attachment system
3.2. Preparation of the Unit (Tractor + Machine)
•pressure in the tractor wheels must be equal on the
same axle in order to provide uniform working depth of
the machine
•the tractor lower links (c) must be stiffened (lock the
oblong holes) and at the same height above the ground
level
•set the lifting rods of the tractor links (w) so that you can
pull down the lower links to the height equal 15 cm
below the hitch axle in order to achieve the required
working depth, while obtaining sufficient lifting height of
the links for transport
•mount the front axle weights in order to keep balance of
the tractor and the machine
•quick-connectors of the machine hydraulic hoses must fit
the sockets on the tractor
•the hitch axle should be in the middle of the machine
•category of the lower articulated joint of the hitch axle
must be the same on both the tractor and the machine
sides!
Fig. 5: Tractor lifting rod
Fig. 6: Front axle weight

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3.3. Mounting and Disconnection of machines
3.3.1. Mounted machines
The tractor should stand on a hard and plain surface in order to connect the machine to it in a correct
and safe way.
Fig. 7: Connecting of the mounted machine
a) Mounting
shift the tractor hydraulics to the position adjustment
•disconnect the suspension axle (D) from the cultivator and put it on the lower tractor tow
bar (C)
•back the tractor to a distance that allows connection of the suspension axle (D) to the frame
plates and the upper connector (A) of the tractor
•secure the suspension axle (D) in the frame plates with bolts and cotter pins
•connect the upper tractor connector (A). Select position of the upper bolt (B) in the
carriage acc. to the requirements and terrain. During work of the cultivator, the upper
fixing point should be located higher than the point of fixing this connector to the tractor
b) Disconnecting
•lower the cultivator onto a flat and hard surface
•disconnect the suspension axle and upper tractor connector

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3.3.2. Semi-mounted machines
The tractor should stand on a hard and plain surface in order to connect the machine to it in a correct
and safe way.
a) Mounting
•shift the tractor hydraulics to the position control
•back the tractor to a distance that allows connection of the hitch axle [A] (tow hitch type [D])
to the tractor lower links (lift arms) (B) (with the tractor tow hitch type [E])
•secure the hitch axle [A] (tow hitch type [D]) in the tractor lower links (lift arms) [B] (with the
tractor tow hitch type [E]) with bolts and cotter pins
•connect the machine hydraulic hoses to the tractor external hydraulic system and check the
hoses for tightness. Check lifting, lowering and unfolding of the machine. Remember to
connect all hoses to all tractor 2-way hydraulic connectors in pairs
•lift and secure the support [C]
b) Disconnection
•lower and secure the support [C]
•lower the machine onto a flat and hard surface
•depressurize the cultivator hydraulic system by shifting the tractor hydraulic levers to their
free (floating) position
•disconnect the hydraulic hoses
•disconnect the hitch axle [A] (tow hitch type [D])
Fig:8 Connecting of the semi-mounted
machine

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3.4. Access to the Field – Transport
3.4.1 Mounted machines
Fig. 9: Transport
•Width of the machine can exceed 3.0m depending on the accessories
•After finishing your work, clean the machine from soil and other dirt
•Extend the cylinder [A], by applying pressure to it
•Fold the frame extensions [B] with the external discs. Remove the cotter pin and the bolt,
rotate the extension arm of 180° on the hinge and secure it in the upper position with the
bolt and the cotter pin
•Clean the warning components (lighting – optional accessory) from dirt
•A unit consisting of a tractor and agricultural machine connected to it must meet the same
requirements as the tractor alone
•Adjust the chains tensioning the side tow bars (stabilizers) of the tractor accordingly before
driving; they should limit the excessive side movements of the unit
•Observe the ‘Road Traffic Law’ regulations when driving on highways

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3.4.2 Semi-mounted machines
•After finishing your work, clean the machine from soil and other dirt
•Fold the frame extension arms [B] with the external discs. Remove the cotter pin and the bolt,
rotate the extension arm of 180° on the hinge and secure it in the upper position with the bolt
and the cotter pin
•Retract the frame extension arms [A] with the external discs. Remove the cotter pin and the
bolt, move the extension arm and secure it in with the bolt and the cotter pin
•Clean the warning components (lighting – optional accessory) from dirt
•Lift the machine using the chassis cylinders [C] by extending it to its extreme position. Insert all
stops on the cylinder and apply pressure to the cylinder in the opposite direction until the
cylinder head rests on the stops
•A unit consisting of a tractor and agricultural machine connected to it must meet the same
requirements as the tractor alone
•Adjust the chains tensioning the side tow bars (stabilizers) of the tractor accordingly before
driving; they should limit the excessive side movements of the unit
•Observe the ‘Road Traffic Law’ regulations when driving on highways
Fig. 10 Transport A

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3.5. Adjustment of the Cultivator
3.5.1. Working Depth Adjustment - Cross
Cross units are designed for operation up to 15 cm with undercutters and up to 30 cm without or
with narrow coulters. Do not exceed these values.
Fig. 11: Working depth adjustment
•Perform hydraulic adjustment by pressurizing the cylinder (A) from the tractor cab, which
extends the cylinder. Then, put on the required number of stops (B) and pressurize the
cylinder (A) again to slide it back to the stops (B). Through this, you can raise or lower the
rear roller of the machine. Secure the cylinder (A) against dropping down with the lever (C).
•When adjusting the working depth with the cylinders, keep in mind the parallel position of
the machine frame during operation. Lower the machine correctly on the tractor three-point
linkage/hitch.
•If required, repeat the steps above several times to obtain the desired working depth.
•After setting the working depth, you can begin adjustment of the disc harrow.
If the adjustment range does not match the actual field conditions, you can change it by varying the
cylinder length:
•Remove the nut and pull out the bolt [D]. Caution: the cylinder tip can be released freely,
endangering your health, so support or suspend it
•Extend the cylinder to its extreme position [A] by applying pressure to it
•Screw the cylinder head in or out, aligning the hole in it with the hole in the carriage
•Secure the cylinder with the bolt and the nut

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3.5.2. Adjustment of the Working Depth of the Disc Harrow Type A
Fig. 12: Adjustment of the harrow type A
•Set the position of the harrow by turning the adjustment spindle handle accordingly: the
longer the spindle, the deeper harrow operation.
•The harrow should never operate deeper than the tines.
•The harrow is used for levelling the field surface after the tine section passage.
3.5.3. Extreme Disc Adjustment in the Cross Harrow Type A
We do this in order to reduce the depth of the trace at the edge of the machine’s working width (if
any.)
Fig. 13 Extreme disc
•Extend the extension arm together with the coulter to the Operation position
•Loosen the bolts [A]
•Rotate the arm with the coulter in order to set it to deeper or shallower operation (turning to
the roller makes it operates shallower)
•Tighten the bolt [A]