Multiva OPTIMA EVO 600 User manual

Operation and maintenance manual  
S-tine harrow
OPTIMA EVO
Translation of the original manual
EN

Table of contents
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1 Foreword . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.1 Intended use of the machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2 Specications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.3 Type plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2 Warranty terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3 Safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1 Residual risks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2 Symbols used in the operating manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.3 Warning labels used on the machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.4 Reectors and lights for use on the machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.5 Towing on public roads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4 Commissioning and basic settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.1 Information on brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.2 Hitching to a tractor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.2.1 Adjusting hydraulic hoses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.2.2 Using the ground support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.3 Levelling board and wing section hydraulics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.3.1 Operating principle of the levelling board and depth adjustment
hydraulics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.3.2 Synchronisation of hydraulic circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.4 Harrow position adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.5 Basic adjustment of the wing sections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5 Machine adjustment and use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.1 Seedbed preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.2 Tillage technique . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.3 Rendering the machine to the transport position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.4 Rendering the machine to the operating position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.5 Setting the working depth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.6 Adjusting the depth scale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.7 Using the levelling boards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.7.1 Basic adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.7.2 Adjusting the front levelling board height . . . . . . . . . . . . . . . . . . . . . . . . . .
5.8 Using the rear harrow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.8.1 Adjusting the rear harrow angle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.8.1.1 1-row rear harrow - angle adjustment . . . . . . . . . . . . . . . . . . .
5.8.1.2 2-row rear harrow - angle adjustment . . . . . . . . . . . . . . . . . . .
5.8.2 Adjusting the rear harrow height . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.8.2.1 1-row rear harrow - height adjustment . . . . . . . . . . . . . . . . . .
5.8.2.2 2-row rear harrow - height adjustment . . . . . . . . . . . . . . . . . .
5.9 Using the cage roller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.9.1 Adjusting the cage roller weighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.9.2 Adjusting the rear cage roller weighting . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.10 Using the track eradicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.10.1 Adjusting the track eradicator height . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.11 Use of the brake system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.11.1 Parking brake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.11.2 Brake release valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.12 Disconnecting from the tractor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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5.13 Machine storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.1 Inspections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.1.1 Quick instructions, inspections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.1.2 Checking the bolt tightness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.1.3 Checking the tyre pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.1.4 Inspecting the brake system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.1.4.1 Inspecting the brake lever adjustment . . . . . . . . . . . . . . . . . .
6.1.4.2 Inspecting the brake shoe wear . . . . . . . . . . . . . . . . . . . . . . . . .
6.1.4.3 Emptying water from the compressed air tank . . . . . . . . . .
6.1.4.4 Cleaning the palm coupling lters . . . . . . . . . . . . . . . . . . . . . .
6.1.5 Inspecting the wheel hub bearing clearance . . . . . . . . . . . . . . . . . . . . . . . .
6.1.6 Inspecting the bogie bearing clearance . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.1.7 Checking the condition of hydraulics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.1.8 Inspecting the towing eye . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.1.9 Checking the wing section locking function . . . . . . . . . . . . . . . . . . . . . . . .
6.1.9.1 Harrows 600-700 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.1.9.2 Harrows 800-1000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.2 Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.2.1 Quick instructions, lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.2.2 Lubricating the cage roller bearings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.2.3 Lubricating the wheel hubs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.2.4 Lubricating the wing section bogie pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.2.5 Lubricating the bogie bearings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.2.6 Lubricating the middle axle bearings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.2.7 Lubricating the hydraulic cylinder spherical bearings . . . . . . . . . . . . . . .
6.2.8 Lubricating the drawbar top link . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.2.9 Lubricating the towing eye . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.2.10 Cage roller - Lubricating the weight adjustment rods . . . . . . . . . . . . . .
6.2.11 Rear cage roller - Lubricating the weight adjustment rods . . . . . . . . .
6.2.12 1-row rear harrow - Lubricating the adjuster rods . . . . . . . . . . . . . . . . . .
6.2.13 2-row rear harrow - Lubricating the adjuster rods . . . . . . . . . . . . . . . . . .
6.2.14 Braked wheels - Changing the wheel hub grease . . . . . . . . . . . . . . . . . .
6.2.15 Braked wheels - Lubricating the brake camshafts . . . . . . . . . . . . . . . . . .
6.3 Replacing wear parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.3.1 Replacing an S-tine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.3.2 Replacing an S-tine point . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.4 Changing a wheel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.4.1 Changing the middle section wheel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.4.2 Changing the wing section wheel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7 Fault situations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.1 Harrow troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8 Attachments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.1 EC Declaration of Conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.2 Hydraulic schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.3 Connection socket according to SFS 2473 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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1 Foreword
Thank you for trusting us by choosing a high-quality Multiva OPTIMA EVO S-tine harrow. We
hope that you nd the product to meet your requirements and provide years of reliable service.
Please read this manual thoroughly before operating the machine. It is of the utmost importance
that you perform the inspection and maintenance measures specied in this manual to ensure
awless operation of the machine and validity of its warranty.
You must follow all the instructions, warnings and prohibitions related to the use of the machine.
They are provided to ensure operator safety and the long service life of the machine.
1.1 Intended use of the machine
CAUTION
The OPTIMA EVO S-tine harrow must never be used for the primary tillage of
unprepared soil.
The operator of the S-tine harrow must acquaint themselves with the machine and read and
understand the contents of its operating manual before operating the machine. The S-tine
harrow may only be operated when it is in awless technical condition. The S-tine harrow must
be used in accordance with regulations, identifying hazards and following the safety and
operating instructions.
Original Multiva spare parts and accessories are designed for this particular S-tine harrow. The
manufacturer bears no responsibility for spare parts and accessories provided by other
suppliers.  Using them in certain circumstances may weaken the machine and compromise
personal safety.
The Multiva S-tine harrow is designed for the seedbed preparation of soil which has been
primary tilled in the autumn or spring. The Multiva S-tine harrow produces a smooth seedbed
and a sufficiently ne crumb structure, which are the requirements for even and optimal growth,
economically with a minimum amount of harrowing. An S-tine harrow equipped with two
levelling boards can also be used for levelling.
The Multiva OPTIMA EVO is a powerful harrow for various soil types. The spacious frame
structure prevents even the heaviest plant build-up from clogging the harrow. The supporting
wheels ensure a uniform working depth even on soft soil types. The heavy weight and
robustness of the harrow tines also make the harrow suitable for tilling heavy soil. The tilling
power of OPTIMA EVO models can be increased by utilising a rear levelling board or cage roller,
which are available as an option. 
Use in accordance with the regulations includes following the operating instructions and
manufacturer's instructions as well as regulations concerning service and maintenance.
Occupational safety regulations concerning agricultural machinery, other rules and regulations
on general safety technology and occupational health as well as traffic rules and regulations
must be followed.  Use of the machine as a mode of transport is not in statutory compliance with
its intended use.
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1.2 Specifications
Table. 1.2 - 1. Specications
OPTIMA EVO1) 600 700 800 900 1000
No. of S-tines 79 91 105 117 130
Tine spacing (mm) 75 75 75 75 75
No. of tine axles 7 7 7 7 7
Working width (cm) 590 690 790 890 980
Frame length ( cm) 300 300 300 300 300
Transportation width (cm) 300 300 300 399 399
Max. transportation height
(cm) 320 360 400 400 420
Tractor  power requirement
(hp) 100 120 140 160 200
Weight (kg) 2,600 2,900 3,300 4,100 4,400
1) 
Technical specications with standard equipment.
Technical specications can also be found on the manufacturer's website. For information on
new products, please contact the manufacturer.
Due to ongoing product development, we reserve all rights to technical modications.
1.3 Type plate
The type plate is located on foremost beam of the frame.
Figure. 1.3 - 1. Location and details of the type plate
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Table. 1.3 - 2. Details of the type plate
1 CE marking
2 Machine manufacturer
3 Machine serial number
4 Machine model
5 Manufacturing year
6 Manufacturer's information
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2 Warranty terms
1. The machine's warranty period is 12 months.
2. The warranty period starts on the date when an authorised retailer delivers the machine.
3. The warranty covers manufacturing and raw material defects. Damaged parts are
repaired or replaced with parts in proper operating condition at the customer's facilities,
factory or authorised repair shop. 
4. A warranty repair does not extend the warranty period. 
5. Warranty does not cover:
damage caused by incorrect operation or maintenance in violation of the operating
manual, excessive loading or normal wear.
loss of income, downtime, other consequential or indirect damage caused to the
product's owner or a third party
travel or freight expenses, daily allowances
changing the original construction of the product.
In warranty matters, please contact the machine retailer or manufacturer. Any measures and
costs must always be agreed upon with the manufacturer before the measures are taken.
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3 Safety instructions
3.1 Residual risks
Read this operating and maintenance manual thoroughly before operating
the machine and follow the instructions given. 
Crushing hazard when setting the harrow working depth and adjusting
harrow accessories as well as when servicing and repairing the
machine.  Exercise extreme caution.
Crushing hazard when connecting and disconnecting the harrow.
Minimum safe distance 10  m. Exercise extreme caution if someone else is
near the harrow and tractor guiding the unhitching of the machine. 
Crushing hazard when lifting and lowering the harrow into its work
position. Minimum safe distance 10  m. Ensure that there are no personnel
in the vicinity.
Before moving, ensure that the wing sections have been lowered and
locked in their transport position and that the wing section ball valve is
closed.
Crushing, cutting and impact hazard when lifting and lowering the wing
sections. No personnel are allowed on or near the harrow when lifting and
lowering the wing sections. When lifting and lowering the wing sections,
make sure there is no one is in the vicinity. Minimum safe distance 10 m.
Crushing hazard when performing servicing and maintenance. Engage the
tractor handbrake and remove the key from the ignition. Place a pair of
axle stands under the harrow frame and lower the harrow onto them. 
Hydraulic hoses under pressure may release a life-threatening jet of liquid.
High-pressure liquid may also cause a crushing, cutting or impact hazard.
The hydraulic system must be depressurised before pressure hoses are
handled, connected or disconnected. Depressurise the hydraulic system
and disconnect the hoses before maintenance work.
Never touch the hydraulic cylinders, hoses and hydraulic connectors when
the cylinders are in operation.
Never look for hydraulic uid leaks by feeling with your bare
hands.  Immediately replace damaged or highly worn hydraulic hoses with
new ones.
Exercise extreme caution when connecting or disconnecting hydraulic
hoses. The compressed air hose can lash out suddenly. Never direct
compressed air directly at your skin. 
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Remaining on top of the machine during its transport and operation is
strictly prohibited. Staying on top of the wheels is always prohibited.
Exercise extreme caution when the harrow is not hitched to the tractor,
particularly on sloping terrain. When parking, lower the harrow S-tines to the
ground or engage the harrow parking brake (if the harrow is equipped with one).
Before moving, ensure that the tractor’s hitch is locked.
If the wing sections are in their transport position, take note of the harrow height
and ensure that there are no low-hanging power lines along the driving route.
Before entering a public road, ensure that the wing sections are locked in their
transport position. Ensure that the wing section ball valve is closed.
Exercise extreme caution when towing the machine in traffic, taking note of the
harrow width and height. 
Place sturdy stands under the front and rear frame of the harrow when changing
tyres. Exercise caution. Never go under an unsupported harrow. 
Risk of injury when removing and mounting a wheel. Exercise caution. If necessary,
ask another person to assist.
Risk of injury from tyres bursting or sudden release of tyre pressure by other
means. Follow the indicated tyre pressures and replace damaged or worn tyres.
Filling a damaged tyre is expressly prohibited. 
Cutting or puncture hazard when changing S-tine points. Exercise extreme
caution.
Ensure that the brake drum and other brake components have cooled before
beginning any servicing or repairs.  Burn hazard.
Depressurise the hydraulic system, disconnect the hoses and tractor's electrical
connections before servicing. 
Exercise extreme caution when parking the harrow in its storage space or pulling it
out for use. Minimum safe distance 10 m. 
Crushing hazard when the harrow drawbar is raised to its storage position or
lowered to its operating position. Exercise extreme caution when lifting.
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Wear protective gloves when handling oil or lubricants and when connecting and
disconnecting hydraulic components. Comply with the safety data sheets of any
substances being handled.
3.2 Symbols used in the operating manual
DANGER warns of a dangerous situation which may lead to death or serious
physical injury. 
CAUTION  warns of a dangerous situation which may lead to damage to the
equipment. 
ADVICE contains useful tips, advice and information in the instructions e.g. on
tightening torques, adjusting values, liquid quantities and special tools. 
DANGER
Never service, adjust or clean a moving harrow.
DANGER
When the seed drill is hitched to the tractor, no personnel are allowed in the vicinity of
the seed drill and, in particular, the area under raised wing sections.  Observe the
minimum safe distance when operating the harrow hydraulics, even when it is standing
still. 
DANGER
Give the harrow at least a visual Inspection before moving or operating it. Items to be
inspected include tyre pressure, harrow cleanliness and the tightness of the bolts of the
towing device. 
DANGER
Before starting, make sure that the machine is in working order. Ensure that the
hydraulic hoses are intact and have no leaks. Ensure that all the S-tines on the harrow
are intact. 
DANGER
Before starting the sowing, ensure that both wing sections are completely lowered so
that the cylinder is fully extended. 
DANGER
When replacing hydraulic system components and conductors, only use spare parts
with sufficient pressure resistance.
DANGER
Never spray water directly on electric equipment. 
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DANGER
Never use oil or lubrication grease to clean skin. These substances may contain small
metal particles, which cause irritation of the skin or cuts. Follow the handling
instructions and safety regulations of the lubricant manufacturers. Synthetic oils are
often corrosive and cause strong irritation of the skin. Contact a doctor, if oil or grease
causes injuries. 
CAUTION
Collect oil waste and dispose of it appropriately in accordance with national
regulations.
CAUTION
If oil is spilled on the ground, absorb it with absorption material, such as turf, to prevent
the oil spill from spreading. Handle the absorption material in accordance with
regulations. 
3.3 Warning labels used on the machine
Figure. 3.3 - 2. Harrow drawbar decals
Table. 3.3 - 3. Harrow drawbar decals
1 Wing section hydraulic connection 1 pc
2 Hydraulic connection of the working depth adjustment 1 pc
3 Hydraulic connection of the front levelling board adjustment 1 pc
4 Hydraulic connection of the rear levelling board adjustment 1 pc
5 Beware of pressurised hydraulic hoses 1 pc
6 Remaining on top of the machine during its transport and operation is
prohibited. 1 pc
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7 Before servicing, make sure that the tractor is turned off, the key is removed
from the ignition and the parking brake is engaged. 1 pc
8 Decal indicating the location of the operation manual 1 pc
9 Read the operation and maintenance manual carefully before operation. 1 pc
10 Before moving, ensure that the wing sections have settled into the transport
position and are locked in place. 1 pc
Figure. 3.3 - 3. Harrow middle section decals
Table. 3.3 - 4. Harrow middle section decals
1 Crushing, cutting and impact hazard when lifting and lowering the wing
sections. 1 pc
2 Instruction decal for tightening bolts 1 pc
3 Middle section tyre pressure 1 pc
4 Crushing, cutting and impact hazard when lifting and lowering the wing
sections. 1 pc
5 Working depth scale 1 pc
Figure. 3.3 - 4. Harrow wing section decals
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Table. 3.3 - 5. Harrow wing section decals
1 Wing section tyre pressure 2 pcs
3.4 Reflectors and lights for use on the machine
The basic harrow model comes with standard lights.
Figure. 3.4 - 5. Standard lights on the basic harrow model
Table. 3.4 - 6. Standard lights on the basic harrow model
1 Reector 2 pcs
2 Rear lights 2 pcs
3 Plate slow vehicle 1 pc
Standard lights can be replaced with an expanded light set (accessory), which contains lights
and reectors for both the front and rear end of the harrow.
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Figure. 3.4 - 6. Expanded light set (accessory) - front end of the harrow
Table. 3.4 - 7. Expanded light set (accessory) - front end of the harrow
1 Side light 2 pcs
2 Front light 2 pcs
3 Reector 2 pcs
Figure. 3.4 - 7. Expanded light set (accessory) - rear end of the harrow
Table. 3.4 - 8. Expanded light set (accessory) - rear end of the harrow
1 Reector 2 pcs
2 Marker light 2 pcs
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3 Side reector 2 pcs
4 Rear reector 2 pcs
5 Rear light 2 pcs
6 Plate slow vehicle 1 pc
3.5 Towing on public roads
The marker reectors on the OPTIMA EVO harrow warn others that the machine is overwide.
Make sure to put the appropriate markers on an overwide tractor.
Before driving:
ensure that the harrow reectors and the tractor’s “caution - slow vehicle” triangle are
clean and intact
ensure that the tractor lights are clean and functioning properly. Give special attention to
the visibility of the rear tractor lights.
ensure that the overwide marking lights on the tractor can also be seen from behind the
harrow
clean off any loose soil on the harrow
make at least a visual inspection of the following areas on the harrow:
drawbar
condition of axles
bolt tightness
tyre condition and pressure 
ensure that both wing sections on the harrow are securely seated and locked in their
transport positions (see section 5.3 Rendering the machine to the transport position).
ensure that the wing section ball valve is closed (see section 5.3 Rendering the machine
to the transport position).
When transporting the harrow on public roads:
exercise caution and observe all road traffic regulations, as well as specic regulations
concerning slow-moving vehicles
note the outer dimensions of the harrow: transportation width and maximum
transportation height (see section  1.2 Specications).
the maximum allowed transportation speed of the harrow is 40  km/h.
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4 Commissioning and basic settings
4.1 Information on brakes
The basic OPTIMA EVO harrow model comes without brakes.
The OPTIMA EVO harrow can be equipped with the following brake systems:
single line hydraulic brake system
braking with the tractor’s single line hydraulic brake system
double brake system
braking with the tractor’s dual line pneumatic brake system or single line hydraulic
brake system
Harrows with brakes are always equipped with a cable-operated parking brake, which is
engaged and released by turning a crank.
4.2 Hitching to a tractor
DANGER
Crushing hazard when hitching the harrow. Minimum safe distance 10  m. Exercise
extreme caution if someone else is near the harrow and tractor guiding the hitching of
the machine.
DANGER
Engage the tractor handbrake and remove the key from the ignition.
Depressurise the hydraulic system before disconnecting hydraulic hoses. Follow the
tractor manufacturer’s instructions.
Exercise extreme caution when connecting or disconnecting hydraulic hoses. The
compressed air hose can lash out suddenly.
CAUTION
The harrow may be hitched to the tractor's trailer hitch.
Wear protective gloves when hitching the harrow to the tractor.
1. Hitch the towing eye of the harrow drawbar to the hydraulic tow hitch of the tractor.
2. Make sure that the tractor's hitch is locked and that it is not rested on the support of the
lifting device.
3. Set the tractor pulling arms to a height where they cannot make contact with the
drawbar or the hoses when turning.
4. Connect the harrow’s hydraulic hoses to the double acting outputs on the tractor.
Ensure that the tractor’s double acting valve, which is used for depth adjustment,
is denitely set for double action and that the valve is not in its oating position.
Connect the wing section lifting cylinders to a hydraulic output with a oating
position. When tilling with the harrow, the operating valve in the wing section
lifting cylinders must always be kept in the oating position. In the oating
position, oil can freely ow through both hoses.
The hydraulic hoses have colour-coded collars.
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Table. 4.2 - 9. Hydraulic hose markings
Function Hose marking Colour code and symbol
Working depth - down 1 x red
Working depth - up 2 x red
Wing sections up 1 x black
Wing sections down 2 x black
Front levelling board down 1 x blue
Front levelling board up 2 x blue
Rear levelling board down 1 x yellow
Rear levelling board up 2 x yellow
5. Connect the light plug of the harrow to the connection socket of the tractor.
If the harrow is not equipped with a brake system, go directly to step 9.
6. Single-line hydraulic brake system (if equipped): Connect the harrow brake hose to the
tractor brake coupling.
The hose is not colour-coded.
7. Double brake system (if equipped): Depending on the tractor equipment, select the brake
system to be used on the harrow (hydraulic or pneumatic).
If you are using the tractor’s hydraulic brake system, follow step 6.
If you are using the tractor’s pneumatic brake system, follow step 8.
Never connect both harrow brakes to the tractor at the same time.
8. Connect the pneumatic brake system palm couplings to the tractor brake couplings.
The coupling heads are colour-coded.
Yellow = service line
Red = supply line
9. Raise the harrow ground support to its transport position (see 4.2.2 Using the ground
support).
4.2.1 Adjusting hydraulic hoses
DANGER
The hydraulic system must be depressurised before hydraulic hoses are handled,
connected or disconnected.  Follow the tractor manufacturer’s instructions.
Wear protective gloves when adjusting hydraulic hoses.
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Figure. 4.2.1 - 8. Adjusting hydraulic hoses
1. Loosen the hose clamp (3) locking bolts (4, 5) at the top of the hose rack  (1).
2. Adjust the hydraulic hoses (2) between the hose rack and tractor to a suitable length.
The length of the hoses is correct when the hoses do not come into contact with
the tractor pulling arms on turns. 
The hose length is too short if the hoses pull tight on turns.
3. Tighten the locking bolts.
Tighten the bolts only to keep the hose in place. Overtightening can damage
hoses.
4.2.2 Using the ground support
Figure. 4.2.2 - 9. Using the ground support
1. Remove the cotter pin (3) from the ground support (1) mounting pin (2).
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2. Pull the mounting pin out of the ground support.
3. Move the ground support up or down using the lever (4).
4. Choose a mounting hole.
Holes (5, 6, 7) = Three options for the lower position of the ground support
Hole (8) = Ground support transportation position
5. Insert the mounting pin into the hole and lock in place with the cotter pin.
4.3 Levelling board and wing section hydraulics
4.3.1 Operating principle of the levelling board and depth adjustment
hydraulics
Figure. 4.3.1 - 10. Cylinders connected in series
Working depth and levelling board adjustments are made with hydraulic cylinders connected in
series. The front levelling board on harrow models 900 and 1000 has 2 two-cylinder series.
In cylinders connected in series, oil ows from the piston side of one cylinder to the rod side of
the next cylinder. Only the rst and last cylinder are connected to the tractor valve. The cylinders
are dimensioned so that the cylinder chambers connected to each other have the same volume.
This keeps the movement of all cylinders even when operating them.  The depth and levelling
board cylinder circuits are equipped with double pilot operated check valves, which prevent any
changes to the set depth even if the tractor valve were to leak.
4.3.2 Synchronisation of hydraulic circuits
Internal leaks, air in the system and external forces exerted on the cylinders can cause variations
in the volume of oil in the chambers of cylinders connected in series. The cylinders must be
synchronised to ensure precise operation.
Always synchronise the hydraulic circuits at the start of an operation period and after
replacing a hose or cylinder.
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Figure. 4.3.2 - 11. Synchronisation of depth adjustment cylinders
1. Using the tractor valve, fully extend the 2 depth adjustment cylinder rods (1) and the
middle section depth adjustment cylinder rod  (2).
2. Maintain pressure for approximately 30 seconds.
Run the tractor engine at low rpm.
Figure. 4.3.2 - 12. Synchronisation of levelling board cylinders
3. Using the tractor valve, fully extend the 3 front levelling board cylinder rods (1).
900 and 1000: There are 4 cylinders.
4. Maintain pressure for approximately 30 seconds.
Run the tractor engine at low rpm.
5. Also do steps 3 and 4 for the 3 rear levelling board cylinders (if equipped).
When the rod is fully extended, oil is able to ow past the cylinder piston into the next cylinder.
Oil ows from the last cylinder into the return line of the tractor’s hydraulic system. This will set
the cylinder lengths to the same level and bleed any air in the circuit. After synchronising, the
cylinders will move at the same rate.
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