Spearhead TWIGA FLEX 5000 User manual

Spearhead
1 Twiga Flex
Important information
TWIGA Flex
Handbook
4. Edition – Dec 2015
The information contained in this manual is correct at the time of publication.
However, in the course of constant development, changes in specification are
inevitable. Should you find the information given in this book different to the
machine it relates to please contact the “After Sales Department” for advice
© GreenTec Machinery Limited 2015
Please ensure that this manual is handed to the operator before using the
machine for the first
time. The operator must fully understand the
contents of this manual before using this machine.
(If the machine is resold the Manual must be given to the new owner.)
Merkurvej 25
DK 6000 Kolding
Danmark
Tlf: [phone]
Fax: [phone]
Email: [e-mail]
http: www.greentec.eu

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Contents
Introduction....................................................................................................................4
Useful information.........................................................................................................5
CE Declaration of Conformity.......................................................................................6
Vehicle/tractor preparation ............................................................................................7
Vehicle Ballast...........................................................................................................7
Front weights .............................................................................................................7
Rear weights...............................................................................................................7
Factors that affect stability.........................................................................................8
Suggestions to increase stability................................................................................8
Safety Stickers ...............................................................................................................9
Safety ...........................................................................................................................10
Potential Dangers associated with the use of this machine......................................10
Additional Safety Advice.........................................................................................11
Training................................................................................................................11
Working in Public Places.....................................................................................11
Warning Signs......................................................................................................11
Suggested Warning Signs Required.....................................................................11
Use of Warning Signs..........................................................................................12
Safety Recommendations.............................................................................................13
Overhead Power Lines.............................................................................................15
Specifications...............................................................................................................17
Attaching Machine To The Tractor – 3 Point Linkage................................................18
Attaching Machine To The Tractor – Axle Mounting.................................................22
Running Up Your Machine......................................................................................24
Removing from the tractor...........................................................................................25
Settings for daily use....................................................................................................26
Joystick-type: STD 2010-2012 ................................................................................26
Joystik-type: STD. Auto Flex 2013.........................................................................27
Adjusting the Flail Head..........................................................................................28
Cutting width ...........................................................................................................28
Rotation settings.......................................................................................................29
Hedge trimming set-up ............................................................................................30
Grass cutting ............................................................................................................31
Operational Warnings..............................................................................................32
Moving into transport position.................................................................................33
Operation..................................................................................................................35
Engaging head drive ................................................................................................35
Disengage head drive...............................................................................................35
Break Back...............................................................................................................36
Collision safety Function Range..............................................................................37
Tractor forward speed..............................................................................................38
Cuttingsequence.......................................................................................................38
Wire trap ..................................................................................................................39
Oil cooler .................................................................................................................39
Extra equipment...........................................................................................................40
Angle float ...............................................................................................................40

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Operating the head angle float.............................................................................40
Arm float..................................................................................................................41
Operating the arm float........................................................................................41
Automatic vertical control: Auto Flex.....................................................................42
Operating Auto Flex ............................................................................................42
Hydraulic rear roller.................................................................................................43
Hedge cutting.......................................................................................................43
Grass cutting ........................................................................................................43
Auto pilot.................................................................................................................44
Set-Up: Correct position of micro switches.........................................................45
Summary..............................................................................................................45
Auto Pilot Switch Alignment...............................................................................47
Alternative Settings..............................................................................................47
Warning................................................................................................................47
Operation Of The Autopilot.................................................................................48
Transport of the machines with Autopilot...........................................................48
Warning................................................................................................................48
Quad Saw.....................................................................................................................49
Technical Data .........................................................................................................50
Tensioning the belts.................................................................................................50
Belt diagram.............................................................................................................51
Mounting the Quad Saw ..........................................................................................51
Quad Saw Operating Instructions............................................................................52
Warning....................................................................................................................52
Service and maintenance..............................................................................................53
Greasing...................................................................................................................53
Lubrication chart......................................................................................................54
After washing your machine....................................................................................54
Gearbox....................................................................................................................54
PTO..........................................................................................................................54
Motor drive – direct drive........................................................................................54
Motor drive – belt drive...........................................................................................54
Oil requirements.......................................................................................................54
Hydraulic hoses........................................................................................................55
Oil Supply................................................................................................................56
Recommended oil ................................................................................................56
Filtration Maintenance.............................................................................................56
Flail head..................................................................................................................58
Pins & Bushes..........................................................................................................59
Storage .........................................................................................................................59
Torque settings.........................................................................................................59
Trouble shooting..........................................................................................................60
Regular Services Chart ................................................................................................61
Pump & Motor Failure Prevention ..........................................................................61
Hydraulic and electrical diagrams ...............................................................................62
GreenTec Warranty......................................................................................................66

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Introduction
Dear customer!
Your new Greentec machine is constructed with background in more than 20 years
experience with tractor mounted machines to maintenance of green areas. This machine is
produced by the latest technology and recognized safety regulations, standards and
regulations.
We want to make a product available in such a way, that neither the use of the machine
during transportation or maintenance of the machine causes any damage or
misunderstandings.
This manual contains information and instructions that are important and useful for
maintaining your Greentec machine's reliability, dependability and value. Please read this
manual carefully as it will familiarize you with the installation, use, care and maintenance. Pay
particular attention to the instructions regarding safety.
You are welcome to visit our website www.greentec.eu - where the login via the dealer's
access gives you the latest updates on instructional and part books on our entire product
range. The password for dealer log-in: PUBLISHER
We hope, you will be pleased with your new Greentec machine.
Best regards,
John Christensen
Sales Director GreenTec A/S
GreenTec’s vision is to develop and sell quality machines for the maintenance of green
areas, including in agriculture, in industry, at airports and in the local sector. Through
innovative product development, we will strive to become a leader in our field.
All machines are developed in a simple and functional design in close cooperation with
dealers and end users. It is our goal to cover every need in the market segment with
preferably 2 different solutions. In-depth analysis of requirements and serious advice to the
customer is offered the best solution, where individual needs can be met through the
modularity of the product program.
Our goal is also to offer the best possible after sales service, and a quick and efficient spare
parts supply.

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Useful information
Before using the machine for the first time, it’s the seller’s responsibility that
the buyer is given this manual, and the seller is sure, that the buyer fully
understands the manual’s contents. If the machine is resold, the manual must
be transferred to the new owner.
Please fill out the list below to ensure that the necessary information is at
hand when ordering spare parts etc.
Serial No
Delivery date
Dealer
Tlf./ E-mail
Merkurvej 25
DK 6000 Kolding
Denmark
Tlf: [phone]
Fax: [phone]
Email: [e-mail]
http: www.greentec.eu

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Merkurvej 25, DK-6000 Kolding, Denmark
CE Declaration of Conformity
Adapted EEC directive
EG Guideline 2006/42/EF, 89/392/EEC & 98/37/EC
We, GreenTec A/S, Merkurvej 25, 6000 Kolding, hereby declare that in terms of its
design, method of construction and our execution thereof, the item of machinery
described below complies with the basic health and safety regulations of the
respective EU Directives. The Machinery Directive is supported by the following
harmonized standards:
Product: GreenTec Twiga Flex
Product code: 998365778
Serial no:
Type: Armsystem mower
DS/EN ISO 12100 3rd edition 2011. Safety of Machinery – General
principles for design – Risk assessment and risk reduction.
DS/EN 953+A1 4th edition 2010. Safety of Machinery – Guards-General
requirements for the design and construction of fixed and movable
guards.
DS/EN ISO 4413 1th edition 2010. Hydraulic fluid power – General rules
and safety requirements for systems and their components.
The EC Declaration only applies if the machine stated above is used in
accordance with the operating instructions.
On behalf of GreenTec A/S
Date: 24.11.2014 Signature:_________________________________
John Christensen Sales Director

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Vehicle/tractor preparation
We recommend vehicles are fitted with cabs
using ‘safety glass’ windows and protective
guarding when used with our machines.
Fit Operator Guard (See drawing) using
the hooks provided. Shape the mesh to cover
all vulnerable areas. The driver must be
looking through mesh and/or polycarbonate
glazing when viewing the working tool in any
working position - unless the vehicle/ cab
manufacturer can demonstrate that the penetration resistance is equivalent to,
or higher than, that provided by mesh/polycarbonate glazing. If the tractor has
a roll bar only, a frame must be made to carry both mesh and polycarbonate
glazing. The operator should also use personal protective equipment to
reduce the risk of serious injury such as; eye protection (mesh visor to
EN1731 or safety glasses to EN166), hearing protection to EN352, safety
helmet to EN297, gloves and high visibility clothing.
Vehicle Ballast
It is imperative when attaching ‘third-party’ equipment to a vehicle that the
maximum possible stability of the machine and vehicle combination is
achieved – this can be accomplished by the utilisation of ‘ballast’ in order to
counter-balance the additional equipment added.
Front weights
May be required for rear mounted machines to place 15% of total outfit
weight on the front axle for stable transport on the road and to reduce
‘crabbing’ due to the drag of the cutting unit when working on the ground.
Rear weights
May be required to maintain a reasonable amount of rear axle load on the
opposite wheel from the arms when in work; for normal off-ground work i.e.
hedge cutting this should be 20% of rear axle weight or more for adequate
control, and for ground work i.e. verge mowing with experienced operators,
this can be reduced to 10%.
All factors must be addressed in order to match the type and nature of the
equipment added to the circumstances under which it will be used – in the
instance of Power Arm hedge cutters it must be remembered that the
machines centre of gravity during work will be constantly moving and will differ
from that during transport mode, therefore balance becomes critical.

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Factors that affect stability
Centre of gravity of the tractor/machine combination.
Geometric conditions, e.g. position of the cutting head and
ballast.
Weight, track width and wheelbase of the tractor.
Acceleration, braking, turning and the relative position of the
cutting head during these operations.
Ground conditions, e.g. slope, grip, load capability of the
soil/surface.
Rigidity of implement mounting.
Suggestions to increase stability
Increasing rear wheel track; a vehicle with a wider wheel track is
more stable.
Ballasting the wheel; it is preferable to use external weights but
liquid can be added to around 75% of the tyre volume – water
with anti-freeze or the heavier Calcium Chloride alternative can
be used.
Addition of weights – care should be taken in selecting the
location of the weights to ensure they are added to a position that
offers the greatest advantage.
Front axle locking (check with tractor manufacturer).
NOTE: The advice above is offered as a guide for stability only and is not a guide to
vehicle strength. It is recommended that you consult your vehicle manufacturer or
local dealer to obtain specific advice on this subject, additionally advice should be
sought from a tyre specialist with regard to tyre pressures and ratings suitable for the
type and nature of the machine you intend to fit.

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Safety Stickers
Warning
Avoid fluid escaping under
pressure. Consult technical
manual for service
procedures.
Warning
Danger – flying
objects. Keep safe
distance from the
machine as long as the
engine is running.
Warning
Stay clear of rotating
saw blades / knifes.
Warning
Do not remove / open guard
when parts are rotating
Warning
Stop engine and remove key
before performing
maintenance or repair work.
Warning
Check all nuts and bolts
are tight every 8 hours –
retighten if required.
Warning
Carefully read operator’s
manual before handling this
machine. Observe instructions
and safety rules when
operating.
Warning
The recommended oil
flow has been adjusted
by the manufacturer.
Never exceed this.

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Safety
This machine has the potential to be extremely dangerous - in the wrong
hands it can kill or maim; it is therefore imperative that both owner and
operator of the machine reads and understands the following section to
ensure they are fully aware of the dangers that do, or may exist, and
their responsibilities surrounding the use and operation of the machine.
The operator of this machine is responsible not only for their own safety
but equally for the safety of others who may come into the close
proximity of the machine, as the owner you are responsible for both.
All operators must be fully competent in the use of this machine and
also the machine to which it is attached and must read and understand
the operation manuals for both machines before attempting to attach or
operate this equipment.
When the machine is not in use it should be lowered to rest on the
ground. In the
event of any fault being detected with the machine’s operation it must be
stopped immediately and not used again until the fault has been
corrected by a qualified technician.
Potential Dangers associated with the use of this machine
▲ Being hit by debris thrown by rotating components.
▲ Being hit by machine parts ejected through damage during use.
▲ Being caught in other moving parts i.e.: belts, pulleys and cutting
heads.
▲ Being hit by cutting heads or machine arms as they move.
▲ Becoming trapped between tractor and machine when hitching or
unhitching.
▲ Tractor overbalancing when machine arm is extended.
▲ Injection of high-pressure oil from hydraulic hoses or couplings.
▲ Machine overbalancing when freestanding (out of use).
▲ Road traffic accidents due to collision or debris on the road.

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Additional Safety Advice
Training
Operators need to be competent and fully capable of operating this machine
in a safe and efficient way prior to attempting to use it in any public place. We
advise therefore that the prospective operator make use of relevant training
courses available such as those run by the Agricultural Training Board,
Agricultural Colleges, Dealers and GreenTec.
Working in Public Places
When working in public places such as roadsides, consideration should be
paid to others in the vicinity. Stop the machine immediately when pedestrians,
cyclists and horse riders etc. pass. Restart only when they are at a distance
that causes no risk to their safety.
Warning Signs
It is advisable that any working area be covered by suitable warning signs and
statutory in public places. Signs should be highly visible and well placed in
order to give clear advanced warning of the hazard. Contact the Department
of Transport or your Local Highways Authority to obtain detailed information
on this subject. The latter should be contacted prior to working on the public
highway advising them of the time and location of the intended work asking
what is required by way of signs and procedure. – ‘Non-authorized placement of
road signs may create offences under the Highways Act’.
Suggested Warning Signs Required
‘Road works ahead’ warning sign with a supplementary ‘Grass cutting’
plate. ‘For 1 km’ or appropriate shorter distance may be added to the
plate.‘Road narrows’ warning signs with supplementary ‘Single file traffic’
plate. White on blue ‘Keep left’ (*) arrow sign on rear of machine.
* Note – this applies to EU Market machines where traffic passes to the left of a
machine working in the same direction as the traffic flow. The direction, use and colour
of the arrow sign will depend on the country of use and the Local Highway Authorities
regulations in the locality.

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Use of Warning Signs
▲ On two-way roads one set of signs is needed facing traffic in each
direction.
▲ Work should be within 1 km of the signs.
▲ Work only when visibility is good and at times of low risk e.g.: NOT during
‘rush-hour’.
▲ Vehicles should have an amber-flashing beacon.
▲ Ideally, vehicles should be conspicuously coloured.
▲ Debris should be removed from the road and path as soon as practicable,
and at regular intervals, wearing high visibility clothing and before removing
the hazard warning signs.
▲ Collect all road signs promptly when the job is completed.
Safety Gear: It is recommended that the following personal protective
equipment is worn when operating and/or maintaining this machine; Coveralls,
safety boots, safety glasses, hearing protection, safety helmet, protective
gloves.
Although the information stated here covers a wide range of safety subjects it
is impossible to predict every eventuality that can occur under differing
circumstances whilst operating this machine. No advice given here can
replace ‘good common sense’ and ‘total awareness’ at all times, but will go a
long way towards the safe use of your GreenTec machine.

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Safety Recommendations
Beware of the following Potential Dangers associated with the use of this
machine:
•Becoming trapped when hitching or unhitching
•Tractor overbalancing when arm is extended
•Electrocution due to hitting overhead power lines
•Getting caught on rotating power take off (PTO)
•Being hit or caught by any moving part, e.g. belts, pulleys, arms, cutting
head
•Being hit by flying debris or machine parts due to machine damage
•Machine overbalancing when not in use
•Injection of high pressure oil from damaged couplings or hydraulic
hoses
•Accidents due to collision with other machines, or debris left on road
Always
•Ensure the operator has read this handbook and has been trained to
use the machine.
•Ensure all cab safety guards are in place and all tractor windows
closed.
•Before leaving the tractor cab always ensure that the flail head is firmly
on the ground, no weight is on the machine’s hydraulics and the rotor
has stopped spinning.
•Check that all guards are properly fitted and there are no damaged or
loose parts. Particular attention should be given to the flails to ensure
they are not damaged, cracked or missing.
•Inspect work area for wire, steel posts, large stones and other
dangerous materials and remove before starting work.
•Beware of the danger of overhead power cables. The operator must
be aware of the maximum height and reach of the machine when
working under power cables. For more information contact the Health
and Safety Executive or your local power company.
•Ensure that all warning labels are always visible and that they are not
damaged, defaced or missing.
•Lower the head to the ground when parking up
•Fit locking pins to slew and height before transport and before
unhitching when applicable.
•Wear ear defenders if operating without a quiet cab or with the cab
windows open.
•Ensure tractor guards are fitted correctly and are undamaged
•Work at a safe speed, taking into account terrain, passing vehicles and
obstacles
•Ensure that the tractor meets the minimum weight recommendations of
the machine manufacturer and that ballast is used if necessary
•Check that machine fittings and couplings are in good condition
•Follow the manufacturer’s instructions for attachment and removal of
machine from the tractor are warning signs to alert others to the type of

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machine working in the vicinity. Signs should be placed at both ends of
the work site and should be in accordance with Department of
Transport recommendations.
•Ensure flails are of the type recommended by the manufacturer, are
securely fitted and are undamaged.
•Ensure hydraulic pipes are correctly routed to avoid damage from
chafing, stretching, pinching or kinking.
•Disengage the machine, stop the engine and remove the key before
leaving the tractor cab for any reason.
•Clean up any debris left at the work site.
•Ensure that when you remove the machine from the tractor it is
secured in a safe position using the stands provided.
Never
•Never operate the machine with other people present, as it is possible
for debris, including stones, to be discharged from the front and rear of
the flail head.
•Never operate the machine until you have read and understood the
relevant Handbook and are familiar with the controls.
•Never use a machine that is poorly maintained or has guards that are
damaged or missing
•Never allow an inexperienced person to operate the machine without
supervision.
•Never use or fit a machine onto a tractor if it doesn’t meet the
manufacturer’s specification.
•Never use a machine if the hydraulic system shows signs of damage.
•Never attempt to detect a hydraulic leak with your hand, use a piece of
card.
•Never allow children to play on or around the machine at any time.
•Never attempt any maintenance or adjustment without first disengaging
the PTO, lowering the head to the ground, stopping the tractor engine
and applying the tractor parking brake.
•Never leave the cab without removing the ignition key.
•Never operate the tractor or any controls from any position other than
from the driving seat.
•Never stop the engine with the PTO engaged.
•Never operate with flails missing.
•Never operate PTO above recommended speed for your machine, 750
or 1000 R.P.M. flail head, 150 R.P.M. cutter-bar.
•Never operate with wire around the rotor. Stop immediately.
•Never use the head at an angle, which may throw debris towards the
cab.
•Never attempt to use the machine for any purpose other than that it
was designed for.
•Never transport with the PTO engaged
•Never enter the working area of the machine (risk of injury!)
•Never transport with the controls live, always turn off electrical isolator
switch (red) and disconnect supply.

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Overhead Power Lines
It cannot be stressed enough the dangers involved when working in the vicinity of
Overhead Power Lines (OHPLs). Some of our machines are capable of reach in
excess of 8 metres (26’); they have the potential to well exceed, by possibly 3 metres
(9’ 9”), the lowest legal minimum height of 5.2 metres from the ground for 11,000 and
33,000 volt power lines.
Remember electrocution can occur without actually coming into contact with a power
line as electricity can ‘flashover’ when machinery gets close to it.
WARNING: All operators must read the following information and be
aware of the risks and dangers involved when working in the vicinity
of Overhead Power Lines (OHPLs).
Wherever possible the safest option is always to avoid working in areas close to
OHPLs.
Where unavoidable, all operators must perform a risk assessment and implement a
safe procedure and system of work – see following page for details.
All operators should perform a risk assessment before operating the machine within
10m horizontal distance of any OHPLs.
Minimum Heights for Overhead Power Lines
Absolute Minimum Exclusion Zones for Specific Overhead Power Lines

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Definitions of Exclusion Zones
Risk Assessment
Before starting to work near OHPLs you should always assess the risks. The
following points should be observed;
Know the risks of contacting OHPLs and the risk of flashover.
Find out the maximum height and maximum vertical reach of your machine.
Find out the location and route of all Power Lines within the work area.
Find out the operating voltage of all Power Lines within the work area.
Contact the local Distribution Network Operator (DNO) who will be able to advise
you on the operating voltage, safe minimum clearance distance for working and
additional precautions required.
Never attempt operate the machine in an exclusion zones.
Always work with extreme caution and plan your work ahead to avoid high risk
areas.
If doubt exists do not work in the area – never risk the safety of yourself or others.
Emergency Action for Accidents Involving Electricity
•Never touch an overhead line - even if it has been brought down by machinery, or
has fallen. Never assume lines are dead.
•When a machine is in contact with an overhead line, electrocution is possible if
anyone touches both the machine and the ground. Stay in the machine and lower
any raised parts in contact or drive the machine out of the lines if you can.
•If you need to get out to summon help or because of fire, jump out as far as you
can without touching any wires or the machine - keep upright and away.
•Get the electricity company to disconnect the supply. Even if the line appears
dead, do not touch it - automatic switching may reconnect the power.
Further information and leaflets on this and other agricultural safety subjects
are available on the ‘Health & Safety Executive’ website at the following
address: www.hse.gov.uk/pubns/agindex.htm

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Specifications
Type
4000 Flex
5000 Flex
6000 Flex
6000 T Flex
A range m
4,8
5,6
6,3
7,2
B range m (with LRS 2001)
5,5
6,3
7,2
8,1
C range m
3,3
3,9
4,7
5,4
D range m
3,4
4,2
4,6
5,4
E range m
4,1
4,9
5,5
6,3
Type
7000 Flex
7000 LR Flex
7000T Flex
7000 LRT Flex
A range m
6,7
7,5
7,9
9,0
B range m (with LRS 2001)
7,6
8,3
8,9
9,5
C range m
5,1
5,6
6,1
7,1
D range m
5,1
5,9
6,1
7,0
E range m
6,0
6,7
7,2
8,2

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Attaching Machine To The Tractor – 3 Point Linkage
1. Reverse tractor to machine and
attach lower links.
2. Fit stabiliser bracket into top link
clevis and fit top link. The standard
link comes with a Cat III hole plus a
Cat III to Cat II reducing bush, a
28mm bracket is available on request.
3. Fit stabiliser tubes between A frame
and stabiliser bracket. Ensure the
tubes are free to slide, do not fit
locking pins.

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4. Raise machine to required height.
Both P.T.O. shafts should be roughly
in-line, an upward angle of up to 17° is
acceptable to ensure adequate
clearance.
5. Adjust the top link so that the
machine sits vertically.
6. Fit locking pins to stabiliser tubes,
then the linkage can be lowered so
that the weight of the machine is taken
by the stabilisers. It is essential that
both tubes are set to equal lengths,
more than one attempt may be
required to achieve the correct height
as the machine settles on the
stabilisers.