FERRI T250A Series Use And Maintenance Manual
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FERRI T250A Series Use And Maintenance Manual

Hydraulic flail hedge mower arm
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USE AND MAINTENANCE MANUAL
HYDRAULIC FLAIL HEDGE MOWER ARM
EN-GB
ENGLISH
Model
T250A right
T320A right
T320A left
T320A reversible LH driving position
Translation of Original Instructions
Serial number
01
01
01
01
Rev. 1.1

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Summary of Contents for FERRI T250A Series

  • Page 1 USE AND MAINTENANCE MANUAL HYDRAULIC FLAIL HEDGE MOWER ARM Model Serial number T250A right T320A right T320A left T320A reversible LH driving position EN-GB Rev. 1.1 ENGLISH Translation of Original Instructions...

  • Page 3: Table Of Contents

    TABLE OF CONTENTS 1 GENERAL INFORMATION Purpose and contents of the manual 1.1.1 Who should read this manual..........................11 1.1.2 Updates to the manual ............................11 1.1.3 Conservation ................................. 11 1.1.4 Copyrights ................................11 Spare parts Machine versions 2 SAFETY RULES General safety rules 2.2 Safety rules concerning road traffic...
  • Page 4 TABLE OF CONTENTS 5 ADJUSTMENTS Working speed adjustment 6 USE AND OPERATING RULES 6.1 Controls 6.1.1 Cable controls (CLASSIC) ............................ 70 6.1.2 Electronic controls (ELECTRA version) ........................ 72 6.1.3 Controls (FULL ELECTRA version)........................74 Starting up 6.2.1 Preliminary checks ..............................76 6.2.2 Starting up the machine ............................
  • Page 5 TABLE OF CONTENTS 11 WARRANTY 11.1 Voiding of the Warranty 12 OPTIONAL UNITS 12.1 Air-oil heat exchanger 12.1.1 Assembly instructions ............................131 boom dual effect kit 12.2 1 12.2.1 Assembly instructions ............................135 T250A-T320A Rev. 1.1...
  • Page 6 TABLE OF CONTENTS Page left intentionally blank T250A-T320A Rev. 1.1...
  • Page 7 Dr. Sandro Ferri (Place and date) FERRI s.r.l. – Via Govoni, 30 – 44034 Tamara (Ferrara) – Italia - Tel. +39.0532.866 866 - Fax +39.0532.866 851 (to cut along the outlined line) To fill out by the Distributor with user’s details...
  • Page 8 DECLARATION OF CONFORMITY The machine described in this manual complies with: European Directives 2014/30/EU Electromagnetic compatibility of machines with internal electrical power supply 2006/42/EC Machinery directive Harmonised standards Safety of machinery – Safety distances to prevent hazard zones being reached by upper and UNI EN ISO 13857 2008 lower limbs...
  • Page 9 PREFACE PRELIMINARY DECLARATION SAFETY RULES The safety instructions provided in this manual are preceded by a hazard symbol and a caution (CAUTION, WARNING and DANGER). These precautions are intended to protect personal safety and the safety of those working and/or present in the danger zone of the machine.
  • Page 10 PREFACE PREFACE To operate safely it is necessary to: Observe the general use precautions for all mechanical equipment, which are described in Chapter 2; Always follow the use instructions contained in this manual. In the case of difficulties in the installation, use or maintenance of the machine, contact specialised technical personnel (Manufacturer, Dealers, Technical Assistants, etc);...

  • Page 11: General Information

    If the manual is lost or becomes unreadable, request a new copy from the Manufacturer. 1.1.4 Copyrights The copyrights for this manual are the exclusive property of FERRI srl. The technical texts, drawings and illustrations in this manual may not be disclosed or transmitted to third parties, not even in part, without the prior written authorisation of FERRI srl.

  • Page 12: Spare Parts

    It is strongly recommended to use original “FERRI” spare parts to avoid altering the technical features of the machine. FERRI is not responsible for any damage or injuries to the machine, persons or things due to the use of non-original parts.

  • Page 13: Machine Versions

    GENERAL INFORMATION Machine versions During work, the machine version varies depending on the running direction and the position of the machine in relation to the tractor. Direction of movement Left machine Right machine Rear version Front version Back-face version T250A-T320A Rev.
  • Page 14 GENERAL INFORMATION Page left intentionally blank T250A-T320A Rev. 1.1...

  • Page 15: Safety Rules

    Examine the safety decals applied to the machine and described in this manual. To work safely, clean them and, if they are not legible, replace them with new decals. FERRI declines all liability for damage caused by improper use of the machine. WARNING Carefully check the machine before each start-up.
  • Page 16 SAFETY RULES ► It is the owner's responsibility to provide operators or employees with all the instructions before they operate on the machine, according to the regulations of the destination country. ► Only the operator who is adequately trained and instructed on the safety rules can operate on the machine. DO NOT OPERATE on the machine if there are any persons and/or animals within the working range of the machine.
  • Page 17 SAFETY RULES Do not, for any reason, get in between the tractor (or self-propelled machine) and the machine with the engine running and/or the power take-off engaged. DANGER Avoid contact with hot surfaces including: Oil tank; Pumps; Engines; WARNING Valves; Gearbox;...
  • Page 18 Do not tamper with, remove or render inefficient the guards and/or safety devices of the machine. DANGER ► Use exclusively original FERRI spare parts. FERRI declines all responsibility in case of: ► Improper use of the machine or use by untrained personnel. ► Serious shortcomings in the required maintenance.

  • Page 19: Safety Rules Concerning Road Traffic

    SAFETY RULES Safety rules concerning road traffic Whenever the public road network must be used, scrupulously respect the highway code. Pay particular attention to the speed limit. WARNING Observe the following rules when using the public road network with the machine coupled to the tractor (or self- propelled machine): ►...

  • Page 20: Safety Rules During Use

    SAFETY RULES Safety rules during use Always check the machine carefully before starting up, and particularly, verify the good working order of accident prevention equipment. WARNING Many objects such as cables, ropes, wires, stones, chains or debris may be expelled outside the machine at high speed following an impact with the flails.

  • Page 21: Responsibility Of The Operator Or Owner

    SAFETY RULES Safe operating speed depends on terrain condition, the type of material to cut, as well as its density and height. WARNING Use slow operating speeds if working on steep slopes, overhead constructions, ditches and when obstacles or debris on the ground must be avoided. WARNING Always keep the flail head close to the ground when the boom extensions are being opened, in order to ensure the machine is transversally stable regardless of the work...

  • Page 22: Safety Rules Concerning The Hydraulic System

    SAFETY RULES Safety rules concerning the hydraulic system Any intervention or maintenance on the hydraulic system has to be carried out by specifically instructed personnel. WARNING ► Replace any hydraulic hoses that are abraded, worn or cut and any metal pipes that are deformed. ►...

  • Page 23: Fire-Prevention Methods

    SAFETY RULES Fire-prevention methods ► Always keep a fire extinguisher of adequate capacity on board the vehicle and make sure that it is periodically recharged. The hand extinguisher is to be used by authorised personnel only. ► The personnel assigned to the vehicle must be trained in the firefighting techniques adopted. ►...

  • Page 24: Overhead Hazards

    SAFETY RULES Overhead hazards Pay special attention when working under or near electric lines: an electric arc may be released. DANGER For the maximum working height of the tool, see TAB 2 in Chapter 3 or the Maintenance and Use Manual of the machine to which the tool is combined. CAUTION T250A-T320A Rev.

  • Page 25: Protection And Equipment For The Operator

    SAFETY RULES Protection and equipment for the operator Always wear safety footwear, overalls, safety gloves and, if necessary, earmuffs and a dust mask during use and machine maintenance, repair, handling and storage operations. In order to protect the operator from the violent expulsion of splinters, stones or other materials, install on the driver's cab - on the work side (1) or on the rear or front side (2) - a single pane (plexiglass or polycarbonate) 10mm thick that prevents the bodies expelled from the end tool from: ►...

  • Page 26: Maintenance: Safety Rules

    SAFETY RULES 2.7.1 Maintenance: safety rules ► When the operator leaves the driving position of the tractor (or self-propelled machine) he/she must: Lower the mower onto a horizontal surface. If there are supporting feet, position them and lower the machine onto the ground using the lift of the tractor (or self-propelled machine);...

  • Page 27: Working Range Of The Machine

    SAFETY RULES Working range of the machine ► Objects can be thrown out with sufficient force to severely injure people within the working range of the machine (at least 50 metres). Make sure that there are no persons near the machine when it is running. ►...

  • Page 28: Safety Decals

    SAFETY RULES 2.9 Safety decals ► Keep safety decals clean and legible at all times. ► Replace all safety decals that are missing or illegible. ► Whenever changing parts of the machine on which a safety decal is mounted, remember to apply the decal again on the new part.
  • Page 29 SAFETY RULES DESCRIPTION OF THE DECALS Carry out regulation and maintenance operations only after reading the use and maintenance manual, with the machine stopped and the key removed. Check the direction of rotation and the number of revolutions (540 rpm) of the tractor p.t.o. before switching on the PTO shaft.
  • Page 30 SAFETY RULES DESCRIPTION OF THE DECALS Use the required personal protection equipment. Keep at a distance from: PTO transmission shaft; Do not perform any maintenance and/or inspection operations when the power takeoff is switched on. Risk of crushing and cutting the hands. Do not put your hands near the moving parts of the machine.
  • Page 31 SAFETY RULES DESCRIPTION OF THE DECALS Indicates the direction of rotation and the number of revolutions (1000 rpm) of the G I R I R. P. M. T O U R S D R E H E Z A H L tractor power takeoff.

  • Page 32: Replacing Safety Decals

    SAFETY RULES 2.9.1 Replacing safety decals ► Make sure that the area of application is clean and dry. ► Determine the exact position before you remove the protective paper from the decal. ► Remove a small portion of the protective paper from the adhesive decal. ►...

  • Page 33: Technical Characteristics

    FERRI srl declines each and every objective liability deriving from failure to observe the regulations contained in this manual.

  • Page 34: Machine Identification

    TECHNICAL CHARACTERISTICS Machine identification There is an identification plate attached to the machine frame, which includes the main technical data such as: Data of the Manufacturer; Series number; Year of manufacture; Weight of the machine; Transmission power; Maximum hydraulic pressure. via GOVONI 30, 44030 TAMARA (FE) ITALY MOD.

  • Page 35: Description Of The Parts

    TECHNICAL CHARACTERISTICS Description of the parts T250A boom Tractor hitch boom jack Frame Heat exchanger (optional) boom hydraulic jack Oil filter Control levers Tank boom Hydraulic jack control valve Flail head orientation hydraulic jack Flail head control valve Flail head orientation levers Support foot Flail head hitch Pump unit...
  • Page 36 TECHNICAL CHARACTERISTICS T320A boom Tractor hitch boom jack Frame Heat exchanger (optional) boom hydraulic jack Oil filter Control levers Tank boom Hydraulic jack control valve Flail head orientation hydraulic jack Flail head control valve Flail head orientation levers Support foot Flail head hitch Pump unit End tool...

  • Page 37: Technical Specifications

    TECHNICAL CHARACTERISTICS Technical specifications TAB 1 FLAIL HEDGE MOWER T250A T320A Min. tractor power HP(kW) 20 (14.7) 25 (18.4) Max. tractor power HP(kW) 35 (35.7) 40 (29.4) Min. tractor weight Kg(lbs) 700 (1543) 900 (1984) Min. tractor width m(ft) 1.00 (3.28) 1.20 (3.94) PTO speed Electrical system voltage...

  • Page 38: Noise Level

    TECHNICAL CHARACTERISTICS Noise level The noise level produced is checked on all the models of machines produced by FERRI. The noise values indicated are emission levels and do not necessarily represent safe operational levels. The relationship between emission levels and exposure levels cannot be reliably used to establish whether further precautions are required or not.

  • Page 39: Radius Of Work

    TECHNICAL CHARACTERISTICS Radius of work The data relating to the width of cut covered by the machine are provided below. The measurements may vary depending on the flail head and its fastening position. T250A T250A-T320A Rev. 1.1...
  • Page 40 TECHNICAL CHARACTERISTICS T320A T250A-T320A Rev. 1.1...
  • Page 41 TECHNICAL CHARACTERISTICS T250A T320A TAB 2 TME60 TME80 2,52 3,22 8' 3" 10’ 7” 1,12 1,84 3' 8" 6’ 1” 1,09 0,93 3' 7" 2’ 11” 1,74 2,05 5' 9" 6’ 2“ 2,91 3,61 9' 7" 11’ 11” 1,04 1,10 3' 5"...

  • Page 42: End Tools

    TECHNICAL CHARACTERISTICS End tools The term ‘end tools’ is applied to all those machines that can be combined to the flail hedge mower and that usually come with their own Use and maintenance manual that contain all the information (technical data, type of flails, etc.) necessary for the correct use of the tool itself.

  • Page 43: Cutter Bar

    TECHNICAL CHARACTERISTICS 3.7.2 Cutter bar Cutter bar mod. CSP150 to cut hedges and reed bed up to a maximum cutting diameter of 1 cm (0,39 in.) (proper use). In combination with this tool the dual effect kit is also provided(see Chapter 12) to allow a better control for arm positioning.

  • Page 44: Optional Equipment

    TECHNICAL CHARACTERISTICS Optional equipment 3.8.1 Flails Depending on the different material to be cut, the most appropriate flails may be used. For more information, consult the Use and maintenance manual of the respective tool (flail head, other tool, etc.). If irregularities or strange noises are noticed after changing the flails, contact the manufacturer.

  • Page 45: Installation And Handling

    TRANSPORT AND INSTALLATION INSTALLATION AND HANDLING Always wear safety footwear, overalls, safety gloves and, if necessary, earmuffs and a dust mask during use and during machine maintenance, repair, handling and storage operations. Lifting To lift the machine, use safety hooks and cables with a suitable lifting capacity, to be inserted only in the points indicated for lifting, identified by the decals applied on the machine.

  • Page 46: Removing The Packaging

    TRANSPORT AND INSTALLATION Removing the packaging The mechanical guard is mounted in the non-operating position. For correct assembly, proceed as follows: ► Unscrew the screws (1); T250A-T320A Rev. 1.1...
  • Page 47 TRANSPORT AND INSTALLATION ► Fit the bracket (2) in the A position, aligning the holes with the ones of the frame (3); ► Fit the bracket (4) in the B position, aligning the holes with the ones of the frame (3); ►...

  • Page 48: Tractor Hitch

    TRANSPORT AND INSTALLATION Tractor hitch Prior to coupling the machine to the tractor, make sure that: All the controls have been disabled; The tractor engine has been switched off; DANGER The parking brake has been applied; The ignition key has been removed from the dashboard; All moving parts have come to a complete stop.
  • Page 49 TRANSPORT AND INSTALLATION To eliminate possible inferences between the shredding flail head and the rear tractor wheel, in transport position, it is possible to move the machine backwards by 90/180mm moving the clamping device of the handlebar hitches by one/two position(s). Always fasten the handlebar hitches using at least 3 bolts.

  • Page 50: Position Of The Centre Of Gravity

    TRANSPORT AND INSTALLATION 4.3.1 Position of the centre of gravity Before mounting the machine on the tractor, make sure that the tilting moments have compatible features. The figure indicates the weight and position of the centre of gravity, with the arm at its maximum extension, in relation to the tractor centre line.

  • Page 51: Attaching Without A Quick Hitch

    TRANSPORT AND INSTALLATION 4.3.2 Attaching Without a Quick Hitch Bring the 2 arms of the tractor hydraulic lifting device (1) closer to the machine near the attachment with the pins. Insert the pins (2) with the respective elastic safety split pins (3). Insert the third point stabiliser (4) and raise the machine.

  • Page 52: Attaching Without A Quick Hitch

    Insert the safety pins into the pin hole and make sure that they are locked in place. Also lock the third point coupling anti-unscrew device. CAUTION Never use the tractor hydraulic lift when the stabilisers are mounted. CAUTION For more information, contact FERRI post-sales service. CAUTION T250A-T320A Rev. 1.1...

  • Page 53: Delta Coupling

    TRANSPORT AND INSTALLATION 4.3.4 DELTA coupling Upon request, the company FERRI provides a kit called “DELTA coupling”, which allows the stabilisers to be coupled without any adaptation by the Customer. T250A-T320A Rev. 1.1...
  • Page 54 TRANSPORT AND INSTALLATION Connect part (1) to the third point connection on the tractor and fix it using pin (2) supplied, so that it remains parallel to the ground or sloping slightly upwards. Fix part (3) to component (1) using pin (4). Prepare the right size stabilisers (5) and fix them first to the delta coupling and then to the anchoring points on the frame.

  • Page 55: Fitting The Pto Shaft

    TRANSPORT AND INSTALLATION Fitting the PTO shaft Before using the PTO shaft, carefully read the use and maintenance manual. PTO SHAFT SPECIFICATIONS No. Splines Fitting 1” 3/8 50 mm (2”) (MIN.) If the PTO shaft supplied with the machine is not being used, check that the cowlings of the machine and of the tractor are overlapped on the protection of the PTO shaft at least by the amount contemplated by the safety regulations in force (50 mm/1.97 in).
  • Page 56 TRANSPORT AND INSTALLATION Whenever the machine is being coupled to a tractor for the first time, you must observe the following instructions: ► In the condition of maximum steering, the PTO shaft must not be completely closed in order to avoid damage to the gearbox.
  • Page 57 Be sure the coupling is locked in position. ► Always stop the power takeoff when lifting the tool or when the manoeuvring angles are too large. FERRI declines all responsibility for damage caused by incorrect assembly and use of the PTO transmission. CAUTION T250A-T320A Rev.

  • Page 58: Tractor Stability

    TRANSPORT AND INSTALLATION Tractor stability Check the lifting capacity and the longitudinal stability of the tractor by means of the following formula. Add ballast at the front if necessary. To determine the total weight of the machine, add up the weight of all the components (see Chapter 3). 0,2 T 4.12 M x (s1+s2) ≤...

  • Page 59: Electrical Connections

    TRANSPORT AND INSTALLATION Electrical connections All machines with electrically/electro-hydraulically controlled distributors (low pressure) and/or heat exchanger, are equipped with electric cables whose wires are coloured as per current laws in force. Also, to prevent the inversion of polarity near the terminals, the wires are tagged with DANGER plastic rings bearing the symbols (+) and (-).
  • Page 60 TRANSPORT AND INSTALLATION 4.14 T250A-T320A Rev. 1.1...
  • Page 61 TRANSPORT AND INSTALLATION 4.15 T250A-T320A Rev. 1.1...

  • Page 62: Assembling The End Tool

    TRANSPORT AND INSTALLATION Assembling the end tool Maintenance and other operations on the hydraulic systems must be performed only by specifically instructed personnel. WARNING The end tool is normally supplied already fitted to the arm. It may happen that, for packing reasons or because it is interchangeable with other features, the end tool has to be assembled afterwards.

  • Page 63: Connecting The Flail Head

    TRANSPORT AND INSTALLATION 4.7.1 Connecting the flail head Ensure that the arm is open. If you do not have the dual effect kit (Chapter 11), the arm falls by gravity and, when no tool is fitted, it is necessary to perform coupling operations using a hoist or fork-lift truck. Start the tractor and regulate the PTO to about 300 rpm.

  • Page 64: Disconnecting The Flail Head

    TRANSPORT AND INSTALLATION 4.7.2 Disconnecting the flail head Start the tractor and regulate the PTO to about 300 rpm. Stop the arm at a height of about 1 metre above the ground (for operator safety). Raise the flail head using a lifting device (for the location of the lifting points, see the relevant use and maintenance manual) and pre-tighten the belts of the lifting device.

  • Page 65: Cutter Bar Connection

    TRANSPORT AND INSTALLATION 4.7.3 Cutter bar connection Raise the cutter bar using a lifting device (for the location of the lifting points, consult the relevant use and maintenance manual) Bring the cutter bar the arm end plate. Secure the cutter bar with the four screws (1) and their washers. Switch off the engine, apply the parking brake and remove the ignition key from the dashboard.

  • Page 66: Detachment From The Tractor

    TRANSPORT AND INSTALLATION Detachment from the tractor 4.8.1 Detachment with head resting on the ground (TSA530-550-610) Proceed as follows to uncouple the machine from the tractor: Set the tractor parking brake. Position the machine in working configuration and rest the shredding flail head (1) on the ground; Lower the machine support feet (2) and lock them into place;...

  • Page 67: Adjustments

    ADJUSTMENTS ADJUSTMENTS Always wear safety footwear, overalls, safety gloves and, if necessary, earmuffs and a dust mask during use and during machine maintenance, repair, handling and storage operations. Working speed adjustment Safe working speed depends on terrain condition, grass type to be cut, density, height of cut and the degree of chopping required.
  • Page 68 ADJUSTMENTS Page left intentionally blank T250A-T320A Rev. 1.1...

  • Page 69: Use And Operating Rules

    USE AND OPERATION USE AND OPERATING RULES Always wear safety footwear, overalls, safety gloves and, if necessary, earmuffs and a dust mask during use and during machine maintenance, repair, handling and storage operations. Controls Set the machine control levers inside the cab in an ergonomic position for the driver and fastened to a solid support on the tractor.

  • Page 70: Cable Controls (Classic)

    USE AND OPERATION 6.1.1 Cable controls (CLASSIC) FLOAT T250A-T320A Rev. 1.1...
  • Page 71 USE AND OPERATION DESCRIPTION OF CONTROLS Controls the rotation direction of the rotor, after shifting the lever G. See section 6.3.1. for further details. Controls the lifting (dark arrow) and lowering (white arrow) of the first arm. The simple effect hydraulic ram guarantees that the end tool rests correctly on the ground and avoids breakages.

  • Page 72: Electronic Controls (Electra Version)

    USE AND OPERATION 6.1.2 Electronic controls (ELECTRA version) Arrange the flail hedge mower control levers inside the cab in an ergonomic position with respect to the tractor's driver seat and fastened to a support integral with the tractor. The control valve is fitted with progressive electronic ON/OFF controls for all functions. The control circuit input voltage is: 12V - 40 Amp.
  • Page 73 USE AND OPERATION DESCRIPTION OF CONTROLS Controls the rotation direction of the rotor, after shifting the lever G. See section 6.3.3. for further details. Controls the lifting (dark arrow) and lowering (white arrow) of the first boom. The simple effect hydraulic jack guarantees that the end tool rests correctly on the ground and avoids breakages.

  • Page 74: Controls (Full Electra Version)

    USE AND OPERATION 6.1.3 Controls (FULL ELECTRA version) Arrange the flail hedge mower control levers inside the cab in an ergonomic position with respect to the tractor's driver seat and fastened to a support integral with the tractor. The control valve is fitted with progressive electronic ON/OFF controls for all functions. The control circuit input voltage is: 12V - 40 Amp.
  • Page 75 USE AND OPERATION DESCRIPTION OF CONTROLS Controls the rotor's direction of rotation. See section 6.3.1. for further details. Controls the lifting (dark arrow) and lowering (white arrow) of the first boom. The simple effect hydraulic jack guarantees that the end tool rests correctly on the ground and avoids breakages.

  • Page 76: Starting Up

    USE AND OPERATION Starting up 6.2.1 Preliminary checks ► Make an overall visual inspection of the machine. ► Check the tightening of all the screws. ► Check the integrity of the guards. ► Check the level of oil in the transmission unit. ►...

  • Page 77: Starting Up The Machine

    USE AND OPERATION 6.2.2 Starting up the machine Do not start the machine while the cutting flails are immersed in the vegetation to be cut. WARNING Keep the tractor engine running at low rpm. Apply force to the PTO lever slowly in order to start the rotor. Once the PTO has been inserted at low rpm, begin gradually raising engine rpm until it reaches the normal operating level.

  • Page 78: Starting The Flail Head

    USE AND OPERATION 6.2.3 Starting the flail head ► Position the flail head parallel to the ground. ► Keep the engine running at minimum. ► Increase tractor rpm. The lever A controls the rotation direction of the rotor. Engage the lever G in order to enable control for lever A. Lever G is a safety device that prevents the accidental inversion of rotation direction with the use of only one lever.

  • Page 79: Starting The Cutter Bar

    USE AND OPERATION NEVER stop or rapidly clutch the motor even if in the same rotational direction. WARNING 6.2.4 Starting the cutter bar ► Keep the engine running at minimum. ► Increase tractor rpm. Bring the rotor control lever (A) into position P1. ►...

  • Page 80: Starting Up The Flail Head (Full Electra Version)

    USE AND OPERATION 6.2.5 Starting up the flail head (FULL ELECTRA version) Make sure that the selector switch (A) is in neutral position - 0 -. Arrange the flail head in a safe position, increase the tractor rpm and start up the rotor in the required direction of rotation.

  • Page 81: Working Mode

    USE AND OPERATION Working mode During use of the machine, there may be emission of dust. Use tractors with a cab with filters on the ventilation system, or use suitable systems to protect the airways, such as dust masks or masks with a filter. Operate the machine briefly and then check to see if the work performed is satisfactory.
  • Page 82 USE AND OPERATION 6.3.1 Rotational direction of the rotor Prepare the machine for the work to carry out and the type of material to cut, adjusting: ► The height of cut (see Chapter 5); ► The rotational direction of the rotor: Cutting grass cutting bushes, thorns and branches.

  • Page 83: Rotor's Direction Of Rotation (Full Electra Version)

    USE AND OPERATION 6.3.2 Rotor's direction of rotation (FULL ELECTRA version) Prepare the machine for the work to be carried out and the type of material to be cut, adjusting: ► The cutting height (see Chapter 5); ► The rotor's direction of rotation: Cutting grass cutting bushes, thorns and branches.

  • Page 84: Arm Safety

    USE AND OPERATION 6.3.3 Arm safety The machine is equipped with a mechanical safety device (A), which is set into operation when the end tool encounters an obstacle and the tractor continues moving forward. This device allows the arm to be moved back to absorb the shock and gives the operator the time to carry out the necessary manoeuvres to overcome the obstacle, then the arm returns to the work position.

  • Page 85: Work With Arm Close To A Vertical Position

    USE AND OPERATION 6.3.4 Work with arm close to a vertical position Do not work if the shredding flail head is not clearly visible. DANGER Take the following precautions: ► Before starting work, check that there are no foreign bodies, such as wires, stones or other items that could be thrown by the flail head.
  • Page 86 USE AND OPERATION 6.12 T250A-T320A Rev. 1.1...
  • Page 87 USE AND OPERATION When the manual operation dual effect Kit is present, if working on hedges or with the arm in vertical position, close the tap (1), identified by the decal (A), to avoid that the 1 arm falls due to the weight of the flail head. Open the tap if carrying out shredding works with tool on the ground to allow the machine to adjust to the rugged terrain without damaging the arm hydraulic rams.

  • Page 88: Stopping

    USE AND OPERATION Stopping Before stopping the tractor: Close the arms and lower the flail head to the ground; Disengage the rotor drive and wait till the rotor has completely stopped (approx. 30 sec.); Turn off the tractor, take the starting key out and apply the parking brake; If the ground is sloping, insert wedges to block the tractor wheels.

  • Page 89: Stopping (Full Electra Version)

    USE AND OPERATION Stopping (FULL ELECTRA version) Before stopping the tractor: wait until ► Turn off the rotor rotation with the selector switch A (FIG. 6.8), moving it to the ‘0’ position and then it has come to a complete standstill. (Approximately 30 seconds) ►...

  • Page 90: Transport Position

    USE AND OPERATION Transport position REAR COUPLING TOP COUPLING Raise the support foot 1) (Rear coupling) ► ► Close the arms. Do not force the closure of the 2 arm when it is resting on the foot (1). CAUTION ► Position the flail head with its flails facing the inside of the machine.

  • Page 91: Routine Maintenance

    ROUTINE MAINTENANCE ROUTINE MAINTENANCE Always wear safety footwear, overalls, safety gloves and, if necessary, earmuffs and a dust mask during use and during machine maintenance, repair, handling and storage operations. General information The criteria for routine maintenance of the machine are provided below, based on the company’s experience and on advice received from our customers.

  • Page 92: Checklist

    ROUTINE MAINTENANCE Checklist The Checklist serves to schedule all the maintenance operations and to monitor the frequency with which they are performed in order to ensure the correct routine maintenance of the machine. The manufacturer recommends keeping the original document attached to the instruction manual, and creating personal copies for every authorised technician, to make a note of the interventions carried out on the machine.

  • Page 93: Every 50 Working Hours Or Every Month

    ROUTINE MAINTENANCE 7.2.2 Every 50 working hours or every month ► Check the tension and efficiency of the transmission belts (where fitted) ► Check the oil level of the tank or gearbox ► Visually check the machine to identify the presence of any breakages or damage ►...

  • Page 94: Every 200 Working Hours

    ROUTINE MAINTENANCE 7.2.3 Every 200 working hours ► Check the rotor flails are not worn ► Check the balancing of the rotor ► Check the conditions of the oil filter cartridge (outlet and inlet where fitted) ► Check the correct adjustment of the controls Intervention date Manager Intervention date Manager T250A-T320A...

  • Page 95: Every 500 Working Hours Or Every Month

    ROUTINE MAINTENANCE 7.2.4 Every 500 working hours or every month ► Replace the oil in the gearbox ► Replace the oil filter cartridge (outlet and inlet where fitted) ► Check the seal of the oil filling cap (if necessary replace) ►...

  • Page 96: Oil Table

    ROUTINE MAINTENANCE Oil table The following table lists the oils to be used for topping up the levels. TYPE CLASSIFICATION HYDROIL GF 68 ISO 11158 (DIN 51524) litres gallons 15,82 OIL QUANTITY IN THE TANK TYPE CLASSIFICATION HYDROIL GF 68 ISO 11158 (DIN 51524) litres gallons...

  • Page 97: Greasing

    ROUTINE MAINTENANCE Greasing LUBRICANT TYPE CLASSIFICATION AGIP GR MU EP/2 SAE90 ► Use a hand-held grease gun for all greasing. ► Wipe the grease nozzle with a clean dry cloth, to avoid injecting dirt and grit. ► Under particularly taxing work conditions, perform lubrication operations more frequently than the every 8 hours usually adopted.

  • Page 98: Changing The Gearbox Oil

    ROUTINE MAINTENANCE Changing the gearbox oil The oil level in the gearbox must be checked every 50 working hours or each month by checking the indicator (1). Pay attention not to exceed the recommended oil level during topping up and change of the oil in the gearbox to avoid spillages.
  • Page 99 ROUTINE MAINTENANCE To change the oil in the gearbox, operate as follows; disassemble the hydraulic pump (1) unscrewing the screws (2) extract the hydraulic pump (1) to be able to remove the gearbox (3) remove the protective cover (4) of the PTO unscrewing the fastening nuts (5) unscrew the studs (6) that fix the gearbox (3) to the frame extract the gearbox (3) from the frame unscrew the vent cap (A) from the upper side and the blind cap (B) on the right side of the gearbox...
  • Page 100 ROUTINE MAINTENANCE T250A-T320A Rev. 1.1...

  • Page 101: Replacing The Oil And The Filters

    ROUTINE MAINTENANCE Replacing the oil and the filters ► Check the oil filter periodically. We recommend that you replace the oil filter cartridge (A) after the firsts 20 hours and then every 200 work hours and every 6 months. The oil level in the tank must be checked using the thermometer on the tank itself.

  • Page 102: Replacing Oil Filter Cartridge

    ROUTINE MAINTENANCE 7.6.1 Replacing oil filter cartridge To replace the discharge oil filter of the hydraulic system perform these operations: ► remove the filter cover and the O-ring; ► remove the cartridge; ► replace the cartridge; ► replace the O-ring; ► close the filter cover. The use of inadequate filters or the incorrect assembly of the same compromises the operation of the machine's hydraulic system.

  • Page 103: Cleaning The Heat Exchanger

    ROUTINE MAINTENANCE Cleaning the Heat Exchanger For good operation of the hydraulic system, clean the heat exchanger (if present) every 8 working hours. ► Use only compressed air at a maximum pressure of 2 Bar (29 PSI). ► Keep a safe distance of around 10 cm (4”). ►...

  • Page 104: Electrical System

    ROUTINE MAINTENANCE Electrical system Always use original spare parts and accessories. Non-original parts invalidate the warranty, are dangerous and reduce the duration and performance of the machine. CAUTION Prior to changing a blown fuse, switch off the machine. Replace a fuse only after the cause of the fault has been eliminated. Check the correct polarity and connection of the cables before connecting them to the tractor’s battery.

  • Page 105: Electric System Diagnostics

    ► If the LED is off and is not blinking, the problem could be that the electronic control unit is not intact (please contact an Authorised Ferri Assistance Centre). ► If the LED on the electronic control unit is blinking normally and the console is not sending any command to the system, check that the wiring is intact.
  • Page 106 If no voltage reaches it, the problem is with the wiring. Contact an Authorised Ferri Assistance Centre. If there is voltage present, there may be a problem with the solenoid valve of the distributor. Check whether the coil is intact.

  • Page 107: Procedure For Movement Operation In Case Of Electrical Failure

    ROUTINE MAINTENANCE 7.9.1 Procedure for movement operation in case of electrical failure In the case of damage to the electrical system, you can carry out manoeuvres in manual mode in order to allow closure of the arm in transport position and go to the nearest Authorised Service Centre. Carry out the manoeuvres in manual mode making sure that there are no people within the working radius of the machine.
  • Page 108 ROUTINE MAINTENANCE EVA3 EVB3 EVA2 EVB2 EVA1 EVB1 Vmax T250A-T320A Rev. 1.1...

  • Page 109: Fastening The Hydraulic Hose Couplings

    ROUTINE MAINTENANCE 7.10 Fastening the hydraulic hose couplings Check that the hydraulic hose couplings have been correctly fastened (TAB 2). TAB 2 Tightening torque Tightening torque Screw thread type MIN. N.m MAX. N.m 1” 1” 1/4 1” 1/2 Tightening torque table for the cylindrical screw thread GAS UNI ISO 228 1 83 - BSPP CAUTION TAB 3 Tightening torque...
  • Page 110 ROUTINE MAINTENANCE 15 Nm 20 Nm 20 Nm 10 Nm 10 Nm 10 Nm 15 Nm T250A-T320A Rev. 1.1...

  • Page 111: Bolt Tightening

    ROUTINE MAINTENANCE 7.11 Bolt tightening Check that the bolts are correctly tightened (TAB 3). TAB 3 STANDARD DIN 10.9 12.9 new ► Pitch Pitch Pitch Pitch Pitch Pitch Pitch Ø ▼ M2.5 0,45 M3.5 1,25 1,25 1,75 1.008 1.041 1.004 1.098 1.204 1.317...
  • Page 112 ROUTINE MAINTENANCE SYMBOL MEANING Screw Hex head Large Fine The torque values reported in table 3 correspond to 80% of the yield stress limitIn each column two values are reported of which the first refers to a friction coefficient of 0.10 and the second to a coefficient of 0.14. For our applications it is advised to refer to the values corresponding to the coefficient of 0.14.

  • Page 113: Parking Or Storage

    ROUTINE MAINTENANCE 7.12 Parking or storage Whenever the machine will not be used for a long period of time, take the following measures to keep it in good condition and free of dust and rust. ONLY LEFT-HAND VERSION ► Park the machine on flat and firm ground, in order to prevent the risk of rolling over. ►...
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  • Page 115: Extraordinary Maintenance

    EXTRAORDINARY MAINTENANCE EXTRAORDINARY MAINTENANCE Always wear safety footwear, overalls, safety gloves and, if necessary, earmuffs and a dust mask during use and during machine maintenance, repair, handling and storage operations. Before carrying out any type of maintenance: Wait until all moving parts come to a complete stop; Lower the machine to ground level;...

  • Page 116: Pipe Replacement

    EXTRAORDINARY MAINTENANCE Pipe replacement Any intervention or maintenance on the hydraulic system has to be carried out by specifically instructed personnel. WARNING ► Before working on the hydraulic system, release all residual pressure, working with the engine off and using all the control levers.

  • Page 117: Replacing The Pipes In The Hydraulic Stopping Devices

    EXTRAORDINARY MAINTENANCE 8.1.1 Replacing the pipes in the hydraulic stopping devices Any intervention or maintenance on the hydraulic system has to be carried out by specifically instructed personnel. WARNING The flexible pipes refer to the hydraulic rams for moving the arms. Open the arms in order to lower the end tool onto the ground.

  • Page 118: Pin Replacement

    EXTRAORDINARY MAINTENANCE Pin replacement Carry out this operation by means of a lifting device or hoist, to avoid parts that are not fixed from falling or causing a loss of balance. When replacing parts, clean and grease their housing. T250A-T320A Rev.

  • Page 119: Trouble Shooting Chart

    9.1 Trouble shooting chart The maintenance operations authorised by FERRI srl are the ones indicated in Chapter 7 – “ROUTINE MAINTENANCE”. The content of this chapter is not exhaustive. Instead, it aims to provide information on the most common problems in order to help specialised technicians to find the fault in question.
  • Page 120 Loose bolts nuts if necessary Have the frames repaired at Excessive machine Machine with cracks or initial signs authorised Ferri workshops. operating noise of breakage Check to see if there are any moving parts unbalanced and correct the defect Worn bearings...
  • Page 121 Broken, worn or missing flails Replace the flails Check rotor balancing and have repairs Unbalanced flail holder shaft or replacements made in authorised Ferri workshops Worn flail holder shaft bearings Have it replaced in specialised workshops Identify the part responsible for the problem...
  • Page 122 TROUBLE SHOOTING PROBLEMS PROBABLE CAUSE REMEDIES Excessive material to chop Reduce advance speed Get an authorised FERRI workshop to check the Hydraulic system requires checking state of the filter, the hydraulic pipes, the setting of the valves etc. Hydraulic oil overheating (over 80°C)
  • Page 123 Check the condition of the joints, seals, Oil leakage onto the motor and hoses (especially for drainage). Replace if clogged or damaged Repair or replace the pump at authorised Ferri Pump worn-out or damaged workshops. Check the condition of the discharge filter and replace if necessary...
  • Page 124 TROUBLE SHOOTING PROBLEMS PROBABLE CAUSE REMEDIES Adjust the number of tractor PTO rpm Manoeuvre speed not suitable Adjust the manoeuvre speed of the function Irregular arm involved by means of adjustable choke (if operation present). Otherwise, contact an authorised workshop Air present inside hydraulic circuit Bleed the air from inside the circuit Check motor operation.

  • Page 125: Scrapping And Disposal

    SCRAPPING AND DISPOSAL 10 SCRAPPING AND DISPOSAL If the machine is to be scrapped, it must be disposed of in suitable waste disposal sites in accordance with the regulations in force. In the case of demolition of the machine, all parts that could constitute a hazard must be made safe. Recover any old oil and dispose of it in special oil disposal centres.
  • Page 126 SCRAPPING AND DISPOSAL Page left intentionally blank T250A-T320A Rev. 1.1...

  • Page 127: Warranty

    At the moment of delivery, check that the machine and the disassembled accessories have not been damaged by transport or handling. Any complaints must be sent in writing to FERRI within 8 (eight) days of the date of receiving the machine, enclosing description of machine...
  • Page 128 WARRANTY Page left intentionally blank T250A-T320A Rev. 1.1...

  • Page 129: Optional Units

    OPTIONAL UNITS 12 OPTIONAL UNITS Always wear safety footwear, overalls, safety gloves and, if necessary, earmuffs and a dust mask during use and during machine maintenance, repair, handling and storage operations. Before carrying out any type of maintenance: Wait until all moving parts come to a complete stop; Lower the machine to ground level;...

  • Page 130: Air-Oil Heat Exchanger

    OPTIONAL UNITS 12.1 Air-oil heat exchanger The illustrations are purely indicative. Some elements might not graphically correspond to those actually fitted to the machine. CAUTION The heat exchanger (1) is particularly useful when the machine undergoes long periods of demanding work or is exposed to hot climates.

  • Page 131: Assembly Instructions

    OPTIONAL UNITS 12.1.1 Assembly instructions In order to assemble the kit, proceed as follows: Secure the heat exchanger support (2) to the frame using the nuts (3). Secure the heat exchanger (1) to the heat exchanger support (2) using the nuts (5). Remove the caps from the heat exchanger (1) and fit the thermostat (6).
  • Page 132 OPTIONAL UNITS For convenience purposes, A and B are referred to as the ends of the hose (7), that are connected to the filter F and control valve D, respectively. Disconnect the hose (7) from the filter F. 12.3 T250A-T320A Rev.
  • Page 133 OPTIONAL UNITS Couple the end A of the pipe (7) with the exchanger (1) lower side outlet. Couple the 90° elbow end of the hose (8), provided with the kit, with the exchanger (1) upper side outlet (end C). Couple the free end of the hose (8) with the filter F, in the position in which the end A of the hose (7) was previously fastened.
  • Page 134 OPTIONAL UNITS Perform the electrical connections (N) and (E) as indicated in the figure. Connect the cable provided (13) directly to the battery taking care NOT TO REVERSE THE POLARITY. 12.5 T250A-T320A Rev. 1.1...

  • Page 135: St Boom Dual Effect Kit

    OPTIONAL UNITS boom dual effect kit 12.2 1 This kit is an option ONLY for RH machines, while it is provided as standard in LH machines. CAUTION The 1 boom dual effect kit makes it possible to work in a vertical position without the boom falling into rest position. This device improves the sensitivity of the tool.
  • Page 136 OPTIONAL UNITS ► Remove the cable retainer (6) from the slider, pushing from one of the two sides. ► Pull out the slider (7) pushing it from above until it comes out of the control valve (a certain oil amount will come out).
  • Page 137 OPTIONAL UNITS ► Disconnect the end part of the hose (9) from the tank (point C). ► Fit the components provided with the kit to Point C and make sure you observe the assembly sequence shown in the figure below. ►...
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  • Page 139 NOTES...
  • Page 140 FERRI s.r.l. Via C. Govoni, 30 44030 Tamara (FE) - ITALY Tel/Phone: 39-0532.866866 Fax: +39-0532.866851 http://www.ferrisrl.it e-mail: info@ferrisrl.it FERRI FRANCE Plaine de FONTGRAVE 81800 RABASTENS Tél. 05 63 40 84 00 Fax 05 63 40 84 08 http://www.ferri-france.fr e-mail: contact@ferri-france.fr...

This manual is also suitable for:

T320a seriesT250a rightT320a rightT320a leftT320a reversible lh driving position

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