Spearhead TWIGA COMPACT User manual

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Spearhead TWIGA COMPACT
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CE Declaration of Conformity,
Conforming to EU Machinery Directive
2006/42 /EC
We, Spearhead Machinery Ltd, Green View, Salford Priors, Evesham,
Worcestershire, WR11 8SW hereby declare that:
Product ……………………………………………..…………………………
Product Code……………………………………………..…………………………
Serial No……………………………………………..……..………………….
Type……………………………………………..…………………………
Manufactured by: Alamo Manufacturing Services (UK) Limited, Station Road,
Salford Priors, Evesham, Worcestershire, WR11 8SW
Complies with the required provisions of the Machinery Directive 2006/42/EC. The
Machinery Directive is supported by the following harmonized standards:
• BS EN ISO 14121-1 (2007) Safety of Machinery –Risk Assessment, Part 1:
Principles Part 2: Practical Guide and Examples of Methods.
• BS EN ISO 12100-1 (2010) Safety of Machinery –Part 1: Basic Terminology
and Methodology Part 2: Technical Principles.
• BS EN 349 (1993) + A1 (2008) Safety of Machinery –Minimum Distances to
avoid the Entrapment of Human Body Parts.
• BS EN 953 (1998) Safety of Machinery –Guards General Requirements for
the Design and Construction of Fixed and Movable Guards.
• BS EN 982 (1996) + A1 (2008) Safety Requirements for Fluid Power Systems
and their Components. Hydraulics.
The EC Declaration only applies if the machine stated above is used in accordance
with the operating instructions.
Signed
(On behalf of Spearhead Machinery Ltd)
Status General Manager
Date 01/04/2017

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Spearhead TWIGA COMPACT
IMPORTANT
VERIFICATION OF WARRANTY REGISTRATION
DEALER WARRANTY INFORMATION & REGISTRATION
VERIFICATION
It is imperative that the selling dealer registers this machine with Spearhead Machinery
Limited before delivery to the end user –failure to do so may affect the validity of the
machine warranty.
To register machines go to the Spearhead Machinery Limited web site at
www.spearheadmachinery.com, log onto ‘Dealer Inside’ and select the ‘Machine
Registration button’ which can be found in the Service Section of the site. Confirm to
the customer that the machine has been registered in the section below.
Should you experience any problems registering a machine in this manner please
contact the Spearhead Service Department on 01789 491867.
Registration Verification
NOTE TO CUSTOMER / OWNER
Please ensure that the above section has been completed and signed by the selling
dealer to verify that your machine has been registered with Spearhead Machinery
Limited.
IMPORTANT: During the initial ‘bedding in’ period of a new machine it is the
customer’s responsibility to regularly inspect all nuts, bolts and hose
connections for tightness and re-tighten if required. New hydraulic connections
occasionally weep small amounts of oil as the seals and joints settle in –where
this occurs it can be cured by re-tightening the connection –refer to torque
settings chart below. The tasks stated above should be performed on an hourly
basis during the first day of work and at least daily thereafter as part of the
machines general maintenance procedure.
Dealer Name: ……………………..…………………………………………………………….
Dealer Address: …….………………………………………………………………………….
Customer Name: ……………………..…………………………………………………………
Date of Warranty Registration: ……/……/...…… Dealer Signature: ………………..……

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Spearhead TWIGA COMPACT
CAUTION: DO NOT OVER TORQUE HYDRAULIC FITTINGS AND HOSES
TORQUE SETTINGS FOR HYDRAULIC FITTINGS
HYDRAULIC HOSE ENDS
PORT ADAPTORS WITH BONDED SEALS
BSP
Setting
Metric
BSP
Setting
Metric
1/4”
18 Nm
19 mm
1/4”
34 Nm
19 mm
3/8”
31 Nm
22 mm
3/8”
47 Nm
22 mm
1/2”
49 Nm
27 mm
1/2”
102 Nm
27 mm
5/8”
60 Nm
30 mm
5/8”
122 Nm
30 mm
3/4”
80 Nm
32 mm
3/4”
149 Nm
32 mm
1”
125 Nm
41 mm
1”
203 Nm
41 mm
1.1/4”
190 Nm
50 mm
1.1/4”
305 Nm
50 mm
1.1/2”
250 Nm
55 mm
1.1/2”
305 Nm
55 mm
2”
420 Nm
70 mm
2”
400 Nm
70 mm
WARRANTY POLICY
WARRANTY REGISTRATION
All machines must be registered, by the selling dealer with Spearhead Machinery Ltd,
before delivery to the end user. On receipt of the goods it is the buyer’s responsibility
to check that the Verification of Warranty Registration in the Operator’s Manual has
been completed by the selling dealer.
1. LIMITED WARRANTIES
1.1. All machines supplied by Spearhead Machinery Limited are warranted to be free from
defects in material and workmanship from the date of sale to the original purchaser for
a period of 12 months, unless a different period is specified.
1.2. All spare parts supplied by Spearhead Machinery Limited are warranted to be free
from defects in material and workmanship from the date of sale to the original
purchaser for a period of 6 months.
1.3. The manufacturer will replace or repair for the purchaser any part or parts found, upon
examination at its factory, to be defective under normal use and service due to defects
in material or workmanship. Returned parts must be complete and unexamined.
1.4. This warranty does not apply to any part of the goods, which has been subjected to
improper or abnormal use, negligence, alteration, modification, fitment of non-genuine
parts, accident damage, or damage resulting from contact with overhead power lines,
damage caused by foreign objects (e.g. stones, iron, material other than vegetation),
failure due to lack of maintenance, use of incorrect oil or lubricants, contamination of
the oil, or which has served its normal life. This warranty does not apply to any
expendable items such as blades, flails, bushes, belts, flap kits, skids, shields, guards,
wear pads or pneumatic tyres.
1.5. Temporary repairs and consequential loss - i.e. oil, downtime and associated parts are
specifically excluded from the warranty.

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Spearhead TWIGA COMPACT
1.6. Warranty on hoses is limited to 12 months and does not include hoses which have
suffered external damage. Only complete hoses may be returned under warranty, any
which have been cut or repaired will be rejected.
1.7. Machines must be repaired immediately a problem arises. Continued use of the
machine after a problem has occurred can result in further component failures, for
which Spearhead Machinery Ltd cannot be held liable, and may have safety
implications.
1.8. Except as provided herein, no employee, agent, dealer or other person is authorised to
give any warranties of any nature on behalf of Spearhead Machinery Ltd.
1.9. For machine warranty periods in excess of 12 months the following additional
exclusions shall apply:
1.9.1. Hoses, external seals, exposed pipes and hydraulic tank breathers.
1.9.2. Filters
1.9.3. Rubber mountings
1.9.4. External electric wiring.
1.9.5. Labour and mileage costs.
1.10. All service work, particularly filter changes, must be carried out in accordance with the
manufacturer’s service schedule. Failure to comply will invalidate the warranty. In the
event of a claim, proof of the service work being carried out may be required.
NB Warranty cover will be invalid if any non-genuine parts have been fitted or
used. Use of non-genuine parts may seriously affect the machine’s performance
and safety. Spearhead Machinery Ltd cannot be held responsible for any failures
or safety implications that arise due to the use of non-genuine parts.
2. REMEDIES AND PROCEDURES
2.1. The warranty is not effective unless the Selling Dealer registers the machine, via the
Spearhead Machinery web site and confirms the registration to the purchaser by
completing the confirmation form in the operator’s manual.
2.2. Any fault must be reported to an authorised Spearhead Machinery dealer as soon as it
occurs. Continued use of a machine, after a fault has occurred, can result in further
component failure for which Spearhead Machinery Ltd cannot be held liable.
2.3. Repairs should be undertaken within two days of the failure. Claims submitted for
repairs undertaken more than 2 weeks after a failure has occurred, or 2 days after the
parts were supplied will be rejected, unless the delay has been authorised by
Spearhead Machinery Ltd.
2.4. All claims must be submitted, by an authorised Spearhead Machinery Service Dealer,
within 30 days of the date of repair.

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Spearhead TWIGA COMPACT
2.5. Following examination of the claim and parts the manufacturer will pay, at their
discretion, for any valid claim the cost of any parts and an appropriate labour allowance
if applicable.
2.6. The submission of a claim is not a guarantee of payment.
2.07.Any decision reached by Spearhead Machinery Ltd is final.
3. LIMITATION OF LIABILITY
3.1. The manufacturer disclaims any express (except as set forth herein) and implied
warranties with respect to the goods including, but not limited to, merchantability and
fitness for a particular purpose.
3.2. The manufacturer makes no warranty as to the design, capability, capacity or suitability
for use of the goods.
3.3. Except as provided herein, the manufacturer shall have no liability or responsibility to the
purchaser or any other person or entity with respect to any liability, loss, or damage
caused or alleged to be caused directly or indirectly by the goods including, but not limited
to, any indirect, special, consequential, or incidental damages resulting from the use or
operation of the goods or any breach of this warranty. Notwithstanding the above
limitations and warranties, the manufacturer’s liability hereunder for damages incurred by
the purchaser or others shall not exceed the price of the goods.
3.4. No action arising out of any claimed breach of this warranty or transactions under this
warranty may be brought more than one (1) year after the cause of the action has
occurred.
4. MISCELLANEOUS
4.1. The manufacturer may waive compliance with any of the terms of this limited warranty,
but no waiver of any terms shall be deemed to be a waiver of any other term.
4.2. If any provision of this limited warranty shall violate any applicable law and is held to be
unenforceable, then the invalidity of such provision shall not invalidate any other
provisions herein.
4.3. Applicable law may provide rights and benefits to the purchaser in addition to those
provided herein.

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Spearhead TWIGA COMPACT
Contents
General Information
EC Declaration of conformity 1
Warranty 2
Introduction 8
Specification 9
Safety
Safety Recommendations 10
Overhead Power Lines 12
Safety Decal 14
Warning Signs 14
Roadwork Guidelines 14
Training 15
Tractor Requirements 15
Installing your Machine
Attaching To The Tractor 16
Running Up Your Machine 20
Removing From The Tractor 20
Cable Controls 21
MINIPILOT Controls 22
Operational Warnings 27
Operation 28
Cutter Bar 29
Oil Cooler 30
Servicing & Maintenance
Lubrication 31
Torque Settings 32
Hydraulic Hoses 33
Oil Supply 34
Filtration Maintenance 34
Pins & Bushes 35
Regular Service Chart 36
Pump & Motor Failure 36

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Spearhead TWIGA COMPACT
Introduction
The TWIGA is a very robust high capacity reach mower that is easy to operate and
maintain. To ensure trouble-free operation this manual should be carefully studied.
The term Left and Right hand applies to the machine when coupled to the tractor
and viewed from the rear, this also applies to the tractor.
Important Note
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.
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.)

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Spearhead TWIGA COMPACT
Specification
320
420
360
460
Weight inc. Oil (Kg)
1350
1370
1350
1370
Weight of head (Kg)
130
130
130
130
Tractor horse power
25
40
25
40
Min. tractor weight (Kg)
1300
2000
1300
2000
Oil tank capacity (ltr)
60
60
60
60
Reach A (m)
3.2
4.2
3.6
4.6
Reach B (m)
3.3
4.3
3.3
4.3
Reach C (m)
2.1
3.1
2.1
3.1
Reach D (m)
3.8
4.8
3.8
4.8
Reach E (m)
2.8
3.8
2.8
3.8

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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 cabwindows
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
machine working in the vicinity. Signs should be placed at both ends of the

Spearhead TWIGA COMPACT
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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, 540
R.P.M. / 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 electricalisolator 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

Spearhead TWIGA COMPACT
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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 youcan.
•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 andaway.
•Get the electricity company to disconnect the supply. Even if the line appears dead, do
not touch it - automatic switching may reconnect thepower.
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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Safety Decal Warning
Check all bolts are tight
every 8 hours.
Warning
Beware of
escaping fluid.
Warning Signs
Warning
Shut off engine and remove
key before performing
maintenance or repair work.
Warning
Beware of overhead
electrical power lines.
You are advised to display clear warning signs to indicate the type of machine when
working in public places. The signs should be carefully placed at either end of the
work site to give advanced warning of the hazard.
Contact your local Highways Authority or Department of Transport for more
information.
Roadwork Guidelines:
On two-way roads, one set of signs should face the traffic in each direction.
Work should be within 1 mile of the signs.
Work only when visibility is good and at times of low risk, e.g. NOT during
rush hour.
Vehicles should show an amber flashing light.
Vehicles should be conspicuously coloured.
Debris should be removed from the road or path at regular intervals and the
operator should wear high visibility clothing.
Collect all warning signs promptly when the job is finished.

Spearhead TWIGA COMPACT
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Training
It is the responsibility of the Spearhead dealer to provide instruction on the safe
installation, operation and maintenance of the machine in the first instance. Further
training is available from Spearhead Machinery Ltd on request, at cost.
Tractor Requirements
Check your Tractor size and minimum weight on the Specificationtable
Before hitching, ensure position control is selected. Do not attempt to hitch in
draft control.
Set wheel width as wide as possible.
• Ballast weight is to be fitted within tractor manufacturer’s recommended
requirements
Check chains and stabilisers must be in good working order to hold the
machine firmly. Do not operate without checking chains and stabilisers are
tight.
• Spearhead particularly recommend ‘turn buckle’ type stabiliser.
Set linkage lift rods to an equal length
• Certain machines require a 12V fused electric supply that is controlled by the
tractor’s ignition key.
Spearhead particularly recommend three point linkage of ball end type, we do
not advise the use of claw type hitching. The quick release latches should be
checked, if worn or insecure they may cause accidental damage or personal
injury if the machine becomes detached.
Ensure tractor link arms can be isolated from accidental lifting.

Spearhead TWIGA COMPACT
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Attaching to the Tractor
It is most important the operator fully understands the procedure for attaching and
un-attaching the reach mower to and from the tractor. The following text must be
fully understood before attempting to attach the machine. If there is any doubt
please contact your supplying dealer or Spearhead Service Department. Failure to
follow the correct procedure to attach or unattached the machine could result in
personal injury or machine damage. Any resulting damage to a machine is not
covered by warranty.
Always be sure to select a level firm surface, such as concrete before attaching to
the tractor.
When operating the tractor or machine’s controls do so only when seated in the
tractor cab. Do not allow anyone to stand on or amongst linkage for any reason.
1. Reverse tractor and attach lower links
2. Fit stabiliser bracket into top link clevis of tractor then fit the toplink

Spearhead TWIGA COMPACT
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3. Lift machine to required height to allow suitable ground clearance and so
that both P.T.O. shafts are roughlyin-line
4. Adjust the top link so that the machine sits vertically

Spearhead TWIGA COMPACT
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5. Attach stabiliser bars to the nearest available hole, ensure both bars are
located in the same hole in both sides. Before fully tightening the bolts, lower
the linkage to allow the weight of the machine to be taken by the stabiliser
bars, then fully tighten
6. Ensure the engine is switched off and then fit the P.T.O. shaft. If fittingfor
the first time follow instructions below to cut P.T.O. to length. Ensure both
sections are cut to equal lengths

Spearhead TWIGA COMPACT
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7. Fit the controls to the required position inside the cab. It is recommended
that they are fitted to the same side as the cutting head to improve comfort
and visibility. On MINIPILOT machines a 12v supply will be required from a
fused, ignition controlled source
8. Fold up leg stands to ensure they do not get damaged. Adjust check chains
to ensure the machine is secure and cannot swing from side to side. Every
machine is supplied with mesh guard panels, these must be fitted to the
windows nearest the cutting head. Trim the panels to size and fit to cab with
the spring clips provided