Bomford Turner WREN 2.7 Manual

IM1870
WREN
2.7 & 3.1
Compact Flail Mower
Instruction Book & Replacement Parts Listing
Issue No: 2

IMPORTANT
NOTE HERE THE SERIAL NUMBER OF YOUR MACHINE AND ALWAYS QUOTE IT IN ANY
COMMUNICATION WITH US OR YOUR DEALER. THIS IS PARTICULARLY IMPORTANT WHEN
ORDERING SPARES. REMEMBER TO INCLUDE ALL NUMBERS AND LETTERS.
MACHINE SERIAL NUMBERS _________________________________________________
THE INFORMATION GIVEN THROUGHOUT THIS MANUAL IS CORRECT AT THE TIME OF PUBLICATION.
HOWEVER, IN THE COURSE OF CONSTANT DEVELOPMENT OF BOMFORD TURNER MACHINES,
CHANGES IN SPECIFICATION ARE INEVITABLE. SHOULD YOU FIND THE INFORMATION GIVEN IN
THIS BOOK TO BE AT VARIANCE WITH THE MACHINE IN YOUR POSSESSION, YOU ARE ADVISED TO
CONTACT THE BOMFORD TURNER SERVICE DEPARTMENT WHERE UP-TO-DATE INFORMATION WILL
BE PROVIDED.
THE MANUAL CAN CONTAIN STANDARD AND OPTIONAL FEATURES AND IS NOT TO BE USED AS A
MACHINE SPECIFICATION.
THE MACHINE HAS BEEN TESTED AND IS CONSIDERED SAFE IF CAREFULLY USED. ENSURE YOUR
OPERATOR IS PROPERLY TRAINED IN ITS USE AND MAINTENANCE.
IMPORTANT
N
OTEZ ICI LES NUMEROS DE SERIE DE VOTRE MACHINE ET MENTIONNEZ LES DANS TOUTE
COMMUNICATION AVEC NOS SERVICES OU VOTRE REVENDEUR. CECI EST IMPORTANT POUR LA
COMMANDE DE PIECES DETACHEES. PENSEZ A NOTER TOUS LES NUMEROS ET TOUTES LES
LETTERS.
NUMEROS DE SERIE DE LA MACHINE____________________________________________
LES INFORMATIONS DONNEES DANS CE MANUEL SONT CORRECTES CEPENDANT, DU FAIT DE
DEVELOPPEMENT CONSTANT DES MACHINES BOMFORD TURNER.
CHANGEMENTS DANS LES CARACTERISTIQUES SONT INEVITABLES.
SI VOUS TROUVEZ QUE LES INFORMATIONS DONNEES NE CORRESPONDENT PAS A VOTRE MACHINE
VEUILLEZ CONTACTER LE SERVICE DES REPARATIONS OU DES INFORMATIONS PLUS RECENTES
VOUS SERONT DONNEES.
CE MANUEL PEUT MONTRER DES CARACTERISTIQUES OPTIONNELLES ET NE PEUT PAS ETRE
CONSIDERE COMME SPECIFICATION DE LA MACHINE.
CETTE MACHINE A ETE TESTEE, ET ELLE EST CONSIDEREE COMME FIABLE A CONDITION D’UNE
BONNE UTILISATION. ASSUREZ-VOUS QUE VOTRE OPERATEUR EST QUALIFIE EN CE QUI CONCERNE
L’UTILISATION DE LA MACHINE AINSI QUE SON ENTRETIEN.
WICHTIG
TRAGEN SIE HIER DIE SERIENNUMMERN IHRER MASCHINE EIN UND GEBEN SIE DIESE IMMER AN,
WENN SIE SICH AN UNS ODER IHREN HÄNDLER WENDEN. DAS IST BESONDERS BEI
ERSATZTEILBESTELLUNGEN WICHTIG. VERGESSEN SIE NICHT, ALLE ZAHLEN UND BUCHSTABEN ZU
NOTIEREN.
SERIENNUMMERN DER MASCHINE____________________________________________
DIE ANGABEN INDIESEM HANDBUCH SIND BEI VERÖFFENTLICHING KORREKT. AUFGRUND DER
KONSTANTEN WEITERENTWICKLUNG VON BOMFORD TURNER MASCHINEN SIND
JEDOCHÄNDERUGDEN IN DER SPEZIFIKATION UNVERMEIDLICH. WENN DIE INFORMATION IN
DIESEM HANDBUCH NICHT MIT IHRER MASCHINE ÜBEREINSTIMMEN, NEHMEN SIE BITTE KONTAKT
MIT DER BOMFORD TURNER KUNDENDIENSTABTEILUNG AUF, DIE IHNEN GERNE DIE AKTUELLEN
INFORMATION ZUKOMMEN LÄSST.
DAS HANDBUCH KANN SOWOHL BESCHREIBUNGEN FÜR DIE STANDARD AUSFÜHRUNG ALS AUCH
FÜR ZUBEHÖR ENTHALTEN UND IST NICHT ALS MASCHINENSPEZIFIKATION ZU VERWENDED.
DIE MASCHINE IST GETESTET UND BEI SACHGEMÄSSEM BETRIEB ALS SICHER BEFUNDEN WORDEN.
SORGEN SIE DAFÜR, DASS IHR BEDIENPERSONAL IN ANWENDUNG UND WARTUNG RICHTIG
GESCHULT WIRD.

IM1870 0902
THIS MANUAL IS TO BE HANDED TO THE
CUSTOMER BEFORE THE MACHINE IS USED FOR
THE FIRST TIME.
All dimensions and capacities mentioned in this book are approximate. In pursuance
of the Company’s policy of constant development, the right is reserved to depart,
without notice, from any detail illustrated or specified in this book, without incurring
the obligation to provide such modifications on machines previously delivered.
Bomford Turner Limited will accept no responsibilities for any injury, damage or loss
arising from the improper use of lack of maintenance of any machinery supplied by
them. Or, from any failure of the user to comply with all instructions published by
tractor or loader manufacturers, particularly with regard to maximum load capacities,
tyre pressures and stability, or with instructions and regulations pertaining to tractor
cabs.

1870 0902
RAM IDENTIFICATION
When ordering SEAL SETS, RAM PARTS etc. please follow the
simple guidelines below to ensure receipt of COMPATIBLE PARTS.
Examine the ram in question at the GLAND NUT.
It will be one of THREE TYPES.
TYPE ‘A’
Gland nut internal and flush
TYPE ‘B’
Gland nut external and same
diameterascylinder
TYPE ‘C’
Gland nut is “large cast collar type”
WHEN ORDERING PARTS,
STATE WHETHER TYPE ‘A’, ‘B’ OR ‘C’
This does NOT apply when a COMPLETE RAM is required, since all ram types are FULLY
INTERCHANGEABLE.
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1870 0902
INDEX
RAM IDENTIFICATION 1
INDEX 2
SPECIFICATION 3
GENERAL INFORMATION 4
SAFETY NOTES AND WARNINGS 5
ABOUT THIS MACHINE 6
HEALTH & SAFETY 7
HEALTH & SAFETY 8
HEALTH & SAFETY 9
HEALTH & SAFETY 10
HEALTH & SAFETY 11
HEALTH & SAFETY 12
NOTES 13
GENERAL INSTRUCTIONS 14
GENERAL INSTRUCTIONS 15
INTRODUCTION 16
ATTACHING THE HEDGE TRIMMER TO THE TRACTOR 17
ATTACHING THE HEDGE TRIMMER TO THE TRACTOR 18
ATTACHING THE HEDGE TRIMMER TO THE TRACTOR 19
TRACTOR SELECTION AND CHARACTERISTICS 20
OPERATION INFORMATION 21
HYDRAULIC CONTROLS CUTTING POSITION 22
HYDRAULIC OIL 23
ROUTINE MAINTENANCE AND LAYING-UP 24
HANDLING AND TRANSPORTATION OF MACHINERY 25
PARTS LIST – WARRANTY AND SPARE PARTS 26
SUB-FRAME TANK AND SUNDRIES 27
SUB-FRAME TANK AND SUNDRIES – DRAWING 28
SUB-FRAME TANK AND SUNDRIES 29
SUB-FRAME TANK AND SUNDRIES – DRAWING 30
MAIN BOOM ETC 31
MAIN BOOM ETC – DRAWING 32
CUTTING HEAD AND ROTOR 33
CUTTING HEAD AND ROTOR – DRAWING 34
HEAD MOTOR ‘PORTS’ 35
HEAD MOTOR ‘PORTS’ – DRAWING 36
VALVE BLOCK AND FITTINGS 37
VALVE BLOCK AND FITTINGS – DRAWING 38
CABLE CONTROL & MOUNTING BRACKET & SAFETY SCREEN 39
CABLE CONTROL & MOUNTING BRACKET & SAFETY SCREEN-DRG 40
HYDRAULIC PIPING DIAGRAM 41
HYDRAULIC PIPING DIAGRAM – DRAWING 42
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1870 0902
SPECIFICATION
Wren 2.7m & 3.1m Compact Flail Trimmer
Overall Height – machine folded for transport (2.7m machine) = 1.600m
(3.1m machine) = 1.900m
Overall Width – machine folded for transport (2.7m machine) = 1.570m
(3.1m machine) = 1.570m
Overall Length of machine (less PTO shaft (2.7m machine) = 0.750m
(taken from linkage pin hole centre) (3.1m machine) = 0.750m
Total Weight of machine (2.7m machine) = 322 KGs
(3.1m machine) = 341 KGs
AIRBORNE NOISE EMISSIONS
The equivalent continuous A – weighted sound pressure level at the workstation (tractor seat) is 88dB (A).
This value was achieved cutting hedges using a Dawe 1405C Sound Meter (BS3489) on a Kubota B1750
tractor without a cab.
NOTE: All weights, dimensions and details given are approximate and are for guidance only.
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NOTE: All weights, dimensions are details are approximate and are for guidance only.
-3 -–
ÅWren26 = 2.9
W
r
e
n31 = 3
.
4
Wren26 = 1.60 Æ
W
r
e
n31 = 2
.
10
.92
Wren26 = 2.60
Wren31= 3.10

1870 0902
GENERAL INFORMATION
NOTE: The provision of this information is a requirement of the Health & Safety at Work Act 1974.
NOTE: This handbook has been designed to help the Operator and Service/Mechanic to use and
understand the machine fully, safely and efficiently, bearing in mind the Health & Safety
requirements and the CE requirements which came into force in January 1995.
NOTE: The handbook/manual will include its own part number, which includes information as to
machine type and issue date of the manual.
DANGER
NOTE: It is very important that the handbook/manual has been read thoroughly – throughout, and is
completely understood before attempting to attach or use the machine in any way.
CAUTION: When ordering spares, please state clearly:-
a Machine type and model number
b Part number of component
c Description of component
d Quantity required
e Full address to which spares are to be sent
f Method of delivery required
CAUTION: Always insist on genuine and correct spare parts.
NOTE: Further copies of this handbook/manual can be obtained from:
BOMFORD TURNER LIMITED
SALFORD PRIORS
EVESHAM
WORCS
WR11 5SW
TELE: 01789 773383
Fax: [phone]
Email: [e-mail]
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1870 0902
SAFETY NOTES AND WARNINGS
Throughout the handbook, the following sub-headings are used to draw attention to various points of
importance:
This is to draw attention to very important instructions, which MUST be followed precisely to avoid injury or
death.
CAUTION
This is used to draw attention to instructions that MUST be followed to avoid damage to Operator, machine,
process or the environment.
NOTE
This is used to highlight points used for supplementary information.
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Never attempt to assemble, couple up, or operate
machinery until you understand fully the functions,
controls and safety precautions required, as shown
in the operators manual.

1870 0902
ABOUT THIS MACHINE
This is a Hedgetrimmer of the type known throughout the Agricultural Industry as a “Flail Type”
Hedgetrimmer.
It is intended to be attached to a compact tractor from 11kW upward by means of the “three-point-linkage”
couple-up system. The addition of an “A” frame, which acts as a lock-frame, ensures a rigid system.
The purpose for its production, and its sole intention, is to cut/trim hedges, banks, verges etc.
AT NO TIME must this machine be used for anything other than, or to do any job – other than that for which
it has been designed (see note above).
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1870 0902
HEALTH & SAFETY
Never attempt to assemble, couple up, or operate machinery until you understand fully the functions, controls
and safety precautions required, as shown in the operator’s manual.
Always follow tractor safety operations and instructions VERY carefully.
NEVER TAKE RISKS
NEVER LEAVE TRACTOR SEAT WHILST ENGINE, OR MACHINE, IS RUNNING
NEVER USE HEDGETRIMMER JIB/BOOM AS A CRANE IN ANY FORM
It may be found necessary to stabilise the whole unit once coupled together – by ballasting tractor rear wheels
and/or fitting counter-balance weights to tractor.
Tractor rear wheels could also be set out to a wider track setting as a method of increasing stability (check
with agent).
CAUTION
Be aware of warning stickers and instruction stickers on machine as care must be taken and instructions
obeyed.
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1870 0902
CAUTION
Contact your dealer should you need advise, assistance, or if you do not understand the manual or machine.
NEVER ASSUME – if not sure ASK.
CAUTION
Machine MUST NOT be altered or modified in any way without permission. No liability will be accepted in
respect of machines that have been modified without the manufacturer’s permission.
Never drive machinery at speeds that could cause danger to other persons or properties or in a manner that
may cause accidents.
Never attempt to service/adjust or work on any machinery in an unsupported state.
For example: any three-point linkage mounted machinery
front loaders
digger booms
hedgetrimmer booms etc
Always ensure that the wheels of any wheeled implement/machinery are “chocked” firmly and implement will
not move, before attempting to service or work on in any way or form.
CAUTION
Always switch off tractor engine before attempting to carry out adjustment or service repairs and inspections
on machinery.
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1870 0902
Always be aware of your surroundings and operate machinery accordingly. Beware of confined, tight areas,
low height restrictions, building and overhangs etc. Also, drive and operate bearing in mind weather
conditions such as sun, rain, ice, snow, wind etc (make allowances in all situations).
CAUTION
Never operate in a reckless or uncaring manner. Respect other road users and be patient.
HIGHWAY USE:
When operating machinery on the highways, the local “Highways Department” should be consulted for
approval and notification as rules and regulations vary from area to area.
Highways Department regulations must be followed.
NOTE:
In general, it is expected that the “tractor/implement will follow (with) the flow of traffic” –
but local highway rules will confirm this.
Always use “STOP/GO” boards, or whatever system the local Highways Department advise, and ensure these
are positioned correctly in relation to machine operating area.
Have respect for passing traffic and keep passing-lane free from obstruction.
Allow time for walkers and cyclists to clear the site. Also, when using on the highway, consult the “lighting
regulations” for correct procedure.
CAUTION
Never carry “passengers” on machinery or on the tractor.
Ensure bystanders/onlookers are kept well away from operational area of apparatus.
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1870 0902
NOTE:
NEVER ALLOW ONLOOKERS/BYSTANDERS TO STAND IN FRONT OF THE
CUTTER HEAD IN LINE WITH FLYING DEBRIS.
A sideways and rearward “NO GO” area should also be kept (see sketch below).
CAUTION
Never operate cutting rotor with blades looking towards operator or towards others.
Cutters must always be operated so that debris is directed towards hedge or bank/verge etc. and away from
operators and bystanders.
CAUTION
Never walk underneath the machine for any reason, especially if unit is still in operation.
CAUTION
“PARKING-UP” MACHINE
When machine is being removed from tractor linkage and being “parked-up”, it is essential that a good, firm
base and level site be found.
Always chock and prop machine to ensure a good, firm position to leave it parked. Ensure that stand-legs of
machine are correctly locked into position.
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HEAD
DANGER AREA
NEVER STAND IN FRONT OF CUTTER
SAFETY
ZONE
3m
Direction of travel

1870 0902
CAUTION
Never allow children to play on or around parked machinery.
CAUTION
Never wear loose-fitting or ragged clothing that could get caught in machinery or controls.
Always ensure safety screens and mesh guards are fitted to the tractor between the cutting head and operator in
a suitable position to give the operator maximum protection from flying debris.
CAUTION
Ensure visibility is clean through cab-screens at all times.
CAUTION
Ensure workstation controls, joysticks, cable leavers etc are positioned correctly to suit operator and not
getting in the way of other driving functions.
Make sure controls do not obstruct entry and exit to cab.
CAUTION
Always dispose of discarded or worn parts thoughtfully by disposing of them in an approved and specified
legal scrap site, bin or skip.
CAUTION
Worn-out and spent waste oil, grease and other obnoxious substances must always be disposed of in suitable
and legally-approved dumping containers suitable for the waste in question.
CAUTION
Ensure booms are folded onto rubber buffers (which are fitted) and that the whole machine is folded-in as
close to the tractor as possible whilst transporting.
- o 0 o -
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1870 0902
CONTROL LEVERS (CABLE MACHINES)
AUTOMATIC SAFETY
The control levers, which operate the hydraulic boom cylinders on the cable-control machines, will
automatically centralise themselves in the “CENTRE/OFF” position as soon as the control lever is let go –
thus preventing any chance of unwanted movement or over-run of booms.
JOYSTICK CONTROL (ELECTRIC MACHINE)
AUTOMATIC SAFETY
The electronic-proportional control model of hedge-trimmer, which has a single joystick as controller, will
also go automatically to the “CENTRE/OFF” position immediately the joystick is released, cancelling all
functions.
JOYSTICK IS NATURALLY SPRUNG-LOADED TO NEUTRAL “CENTRE/OFF” POSITION
- o 0 o -
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1870 0902
NOTES:
AMENDMENT DATE DETAILS
13

1870 0902
GENERAL INSTRUCTIONS
1Before attaching any machine to a tractor or loader, make sure that the implement is standing firmly
on a good, solid, level site.
Check that any wheels are “chocked” correctly and the supports/props are in position where necessary
to prevent booms etc dropping.
2Before and during the manoeuvring of the tractor or vehicle, in order to attach machinery/
implements, make sure that no other persons are in the vicinity.
Keep other persons well clear and make known your intentions, all the while keeping a sharp lookout
whilst reversing and aligning machines for coupling up.
3 Always secure tractor into selected position by ensuring that brakes are applied correctly in order to
prevent vehicle moving off on its own to cause injury and damage.
4Make sure that the lift-arms and top link ball ends of the tractor are properly fitted to the
machine/implement by using correct adaptor sleeves where necessary, and that retaining pins of the
correct type are used on all three-point linkage points. Secure pins with relevant pin and ring
assembly.
5If the machine is of the drawbar type, check that the hitch on the tractor is in good condition and that
the hitch-pin used is of the correct size and type, and is properly secured when fitted.
6Should it become necessary to make any adjustments or service on the machine while it is raised on
the tractor linkage, or raised on a front-end loader, trestles or suitable supports must be positioned to
support machine to prevent accidental dropping of lift arms, loader arms or mechanical failure.
MACHINE MUST ALWAYS BE PROPPED AND CHOCKED
7Never attempt to work on, adjust or service repair machinery of any kind whilst it is still running or
working. Always stop the machine and STOP THE TRACTOR ENGINE, before any service/repairs
begin.
SWITCH OFF TRACTOR ENGINE BEFORE LEAVING TRACTOR SEAT
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1870 0902
8In transit, always use transport stays or locking devices where provided. If, as in the case of some
longer machines, the unit us transported lengthways, make sure that the front of the tractor is suitably
ballasted to maintain stability.
A method of achieving this would be to add suitable weights to a correctly specified and fitted front
weight frame.
9Always use machines in a sensible and reasonable manner and do not attempt to use them in work for
which they are not intended. Avoid overloading and abusing them, as this can cause damage to
machine and tractor and can be very dangerous.
10 When un-hitching/detaching a machine from a tractor three-point linkage, or from a front-end loader,
ensure that any stands or legs are securely positioned and that the machine is parked where it will not
be a safety hazard or cause annoyance to others
Make sure that you chose a parking site that is firm and level.
11 Carry out regular periodic maintenance. Always with safety in mind.
12 Ensure regular maintenance procedures are maintained for the lifetime of the machine.
13 HEALTH AND SAFETY RULES AND REGULATIONS MUST BE ADHERED TO IN ALL
AGRICULTURAL RESPECTS.
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1870 0902
INTRODUCTION
The Wren 2.7 & 3.1 Flail Trimmers are machines designed to fit to the small and medium compact tractors.
The 2.7 machine has a reach of approximately 2.7m and is suitable for tractors 11kW (16 HP) plus.
The 3.1 machine has a reach of approximately 3.1m and is suitable for tractors 15kW (20 HP) plus.
The two machines have basically common parts and assemblies; the sub-frame and cutting head being
identical for both size machines as are the hydraulics and control system. The main booms do vary in length
(being longer on the 3.1m machine) to give extra reach.
The fixing of Trimmer to tractor is standard three-point linkage with the addition of an ‘A’ frame to the
linkage, which acts as a lock frame.
Only left-hand cut machines are available for the UK market.
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1870 0902
ATTACHING HEDGETRIMMER TO TRACTOR
1Select a good, level site with sufficient room to manoeuvre tractor and implement.
2Position tractor on selected site, switch off engine and apply handbrake.
3Using Flail Hedge Trimmer handlebar (in extended setting), position flail machine behind tractor
(move on transport wheels) to such a position that three-point linkage of tractor and implement is
aligned.
4Move the Trimmer towards tractor and couple up the three-point linkage. Ensure all linkage pins are
located and securing clips are fitted.
5 The three-point linkage lock ‘A’ frame should be attached at the same time as three-point linkage pins
are fitted. This ‘A’ frame has 2 setting positions ‘short’ and ‘long’, this can be set prior to actually
fitting to tractor and will vary depending on tractor size.
The 4 bolts (2 each side) of ‘A’ frame, once fitted to bars at chosen length setting position, MUST be
left slack at this stage of the assembly.
6 With the linkage now coupled (tractor to implement), raise the Trimmer hydraulically on linkage to
give a height under transport wheel to floor of 150mm. Ensure linkage ‘A’ frame chosen setting is
correct whilst setting height.
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