FERRI T380D Series User manual

T380D-T430D
ENGLISH
EN-GB
HYDRAULIC FLAIL HEDGE MOWER ARM
Translation of Original Instructions Rev. 1.0
UM0100 - 06/03/2015
USE AND MAINTENANCE MANUAL
Model Serial number
T380D right 01
T430D right 01
T380D left 01
T430D left 01

3
Rev. 1.0 T380D-T430D
TABLE OF CONTENTS
INDICE
1 GENERAL INFORMATION 13
1.1 Purpose and contents of the manual 13
1.1.1 Who should read this manual................................................................................................................................13
1.1.2 Updates to the manual..........................................................................................................................................13
1.1.3 Conservation.........................................................................................................................................................13
1.1.4 Copyrights.............................................................................................................................................................13
1.2 Spare parts 14
1.3 Machine versions 15
2 SAFETY RULES 16
2.1 General safety rules 16
2.2 Safetyrulesconcerningroadtrafc 20
2.3 Safety rules during use 21
2.3.1 Responsibility of the operator or the owner...........................................................................................................22
2.4 Safety rules concerning the hydraulic system 23
2.5 Fire-prevention methods 24
2.6 Overhead hazards 25
2.7 Protection and equipment for the operator 26
2.7.1 Maintenance: safety rules.....................................................................................................................................27
2.8 Working range of the machine 28
2.9 Safety decals 29
2.9.1 Replacing safety decals........................................................................................................................................33
3 TECHNICAL CHARACTERISTICS 34
3.1 General description of the machine 34
3.1.1 Proper and improper use of the machine..............................................................................................................34
3.2 Machineidentication 35
3.3 Description of the parts 36
3.4 Technicalspecications 37
3.5 Noise level 38
3.6 Radius of work 39
3.7 End tools 41
3.7.1 Flail heads.............................................................................................................................................................41
3.7.2 Cutter bar..............................................................................................................................................................42
3.8 Optional equipment 43
3.8.1 Flails......................................................................................................................................................................43
4 INSTALLATION AND HANDLING 44
4.1 Lifting 44
4.2 Tractor hitch 45
4.2.1 Position of the centre of gravity.............................................................................................................................47
4.2.2 Attaching Without a Quick Hitch............................................................................................................................48
4.2.3 Attaching Without a Quick Hitch............................................................................................................................49
4.2.4 DELTA coupling ....................................................................................................................................................50
4.3 Fitting the PTO shaft 52
4.4 Tractor stability 55
4.5 Electrical connections 56
4.6 Assembling the end tool 59
4.6.1 Connectingtheailhead.......................................................................................................................................60
4.6.2 Disconnectingtheailhead ..................................................................................................................................61
4.6.3 Cutter bar connection............................................................................................................................................62
4.7 Detachment from the tractor 63
4.7.1 Detachment with head resting on the ground (TSA530-550-610) ........................................................................63

4T380D-T430D Rev. 1.0
TABLE OF CONTENTS
INDICE
5 ADJUSTMENTS 64
5.1 Working speed adjustment 64
6 USE AND OPERATING RULES 66
6.1 Controls 66
6.1.1 Cable controls (CLASSIC) ....................................................................................................................................67
6.1.2 Electronic controls (ELECTRA version)................................................................................................................69
6.1.3 Controls (FULL ELECTRA version).......................................................................................................................71
6.2 Starting up 73
6.2.1 Preliminary checks................................................................................................................................................73
6.2.2 Starting up the machine........................................................................................................................................74
6.2.3 Startingtheailhead ...........................................................................................................................................75
6.2.4 Starting the cutter bar ..........................................................................................................................................76
6.2.5 Startinguptheailhead(FULLELECTRAversion) .............................................................................................77
6.2.6 Starting up the cutter bars (FULL ELECTRA version)...........................................................................................77
6.3 Working mode 78
6.3.1 Rotational direction of the rotor.............................................................................................................................79
6.3.2 Rotor's direction of rotation (FULL ELECTRA version).........................................................................................80
6.3.3 Arm safety.............................................................................................................................................................81
6.3.4 Work with arm close to a vertical position.............................................................................................................82
6.4 Stopping 85
6.5 Stopping (FULL ELECTRA version) 86
6.6 Transport position 87
7 ROUTINE MAINTENANCE 89
7.1 General information 89
7.2 Checklist 90
7.2.1 Every 8 working hours or daily..............................................................................................................................90
7.2.2 Every 50 working hours or every month................................................................................................................91
7.2.3 Every 200 working hours.......................................................................................................................................92
7.2.4 Every 500 working hours or every month..............................................................................................................93
7.3 Oil table 94
7.4 Greasing 95
7.5 Changing the gearbox oil 96
7.6 Replacingtheoilandthelters 99
7.6.1 Replacingoilltercartridge.................................................................................................................................100
7.7 CleaningtheHeatExchanger 101
7.8 Electricalsystem 102
7.9 Electricsystemdiagnostics 103
7.9.1 Procedure for movement operation in case of electrical failure..........................................................................105
7.10 Instructionsforpreloadingthehydropneumaticaccumulators 107
7.11 Fasteningthehydraulichosecouplings 108
7.12 Bolttightening 110
7.13 Parking or storage 112
8 EXTRAORDINARY MAINTENANCE 113
8.1 Pipe replacement 114
8.1.1 Replacing the pipes in the hydraulic stopping devices .......................................................................................115
8.2 Pin replacement 116
9 TROUBLE SHOOTING CHART 117
9.1 Trouble shooting chart 117
9.1.1 General ...............................................................................................................................................................117
10 SCRAPPING AND DISPOSAL 123

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Rev. 1.0 T380D-T430D
TABLE OF CONTENTS
INDICE
11 WARRANTY 125
11.1 Voiding of the Warranty 125
12 OPTIONAL UNITS 126
12.1 Air-oil heat exchanger 127
12.1.1 Assembly instructions .........................................................................................................................................128
12.2 Boom hydro-pneumatic suspension 132
12.2.1 Assembly instructions .........................................................................................................................................133
12.3 1st boom dual effect kit 135
12.3.1 Assembly instructions .........................................................................................................................................135

6T380D-T430D Rev. 1.0
TABLE OF CONTENTS
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INDICE

7
Rev. 1.0 T380D-T430D
DECLARATION OF CONFORMITY
Dichiarazione di conformità
DECLARATION OF CONFORMITY
TheCE Declaration of Conformity, providedtogether withthemachine,is the documentwithwhichthe Manufacturer
certies, under its own responsibility, that it has complied with observance of the European Directives, the Standards
and Technical Specications necessary (specied in said Declaration) in order for the machine to conform to the basic
requirements for sale and use in the European Union.
The Declaration of conformity must be considered as an integral part of the machine and must always accompany
the machine until it is scrapped.
If this document is not delivered together with the machine or gets lost, please request a copy from the
Manufacturer.
N°
CE Declaration of Conformity
According to 2006/42/CE Directive
(that abrogate 98/37/CE Directive)
The undersigned FERRI s.r.l. state on its own responsibility that the machine
description of machine code series (flail head/series) serial no.
complies with the Essential Safety and Health Protection Requirements of the 2006/42/CE Directive and to
the electromagnetic compatibility for models equipped with electro/electronic devices according the
2004/108/CE Directive.
To answer to Conformity, according to the above mentioned Directives, following rules have been
considerated:
As well as the technical detailed list:
(Name and qualification of the delegate of the manufacturer)
Signature of the delegate
Tamara,
Person authorised to form the Technical file
Dr. Sandro Ferri
(Place and date)
FERRI s.r.l. – Via Govoni, 30 – 44034 Tamara (Ferrara) – Italia - Tel. [phone] - Fax [phone]
(to cut along the outlined line)
To fill out by the Distributor with user’s details
Date
ata
WARRANTY COUPON
Surname Name
Series
Date
Company Ragione Sociale User Signature
Address
City or Town State/Prov
Postal
Code
Machine Model
Serial N°
Telefono Fax
Serial N° Series
Distributor stamp and signature
Machine Model
Taken note of the Use and Maintenance Book and
of the use’s rules (Safety Rules included)
Distributor Stamp
User Signature (legible)
FAC-SIMILE
The bottom part of the Declaration of Conformity contains the Warranty Coupon which must be completed in full and
returned to the Manufacturer in order for the rights under the warranty to be valid (see Chapter 11).

8T380D-T430D Rev. 1.0
DECLARATION OF CONFORMITY
Norme DECESPUGLIATRICI
The machine described in this manual complies with:
European Directives
2004/108/EC Electromagnetic compatibility of machines with internal electrical power supply
2006/42/EC Machinery directive
Harmonised standards
UNI EN ISO 13857 2008 Safety of machinery – Safety distances to prevent hazard zones being reached by upper and
lower limbs
UNI EN 13524 2014 Highway Maintenance Machines - Safety Requirements
UNI EN ISO 4254-1 2010 Agricultural machinery - Safety - Part 1: General requirements
UNI EN ISO 12100 2010 Safety of machinery - General principles for design – Risk assessment and risk reduction
Technical Specifications
UNI EN ISO 3767-2 1998 Tractors, machinery for agriculture and forestry, powered lawn and garden equipment – Symbols for operator controls and other displays - Part 2: Symbols for agricultural
tractors and machinery
ISO 11684 1995 Tractors, machinery for agriculture and forestry, powered lawn and garden
equipment – Safety signs and hazard pictorials – General principles
IEC EN 60204-1 2006 Safety of machinery. Electrical equipment of machines.

9T380D-T430D Rev. 1.0
DECLARATION OF CONFORMITY
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Norme DECESPUGLIATRICI

10 T380D-T430D Rev. 1.0
PREFACE
Prefazione
PRELIMINARY DECLARATION
SAFETY RULES
The safety instructions provided in this manual are preceded by a hazard symbol and a caution (CAUTION, WARNING
and DANGER).
Theseprecautionsareintendedto protect personalsafetyand the safety of thoseworkingand/orpresentin the danger
zone of the machine.
Carefully read all the instructions provided in this manual.
THE WORD “CAUTION” REFERS TO SAFE CONDUCT PRACTICES BOTH IN OPERATING
AND MAINTENANCE TO BE IMPLEMENTED FOR ALL PERSONS PRESENT IN THE
DANGER ZONE OF THE MACHINE IN ORDER TO PREVENT ACCIDENTS.
CAUTION
THEWORD“WARNING”DENOTESAPOTENTIALORHIDDENDANGERTHATCANCAUSE
ACCIDENTS OR DEATH.
IT IS USED TO ENCOURAGE OPERATORS AND THE OTHER PERSONS TO USE
APPROPRIATE MEANS IN ORDER TO AVOID POSSIBLE ACCIDENTS.
WARNING
THE WORD “DANGER” DENOTES A NON-PERMITTED PRACTICE THAT CAN CAUSE
ACCIDENTS OR DEATH.
DANGER
FAILURE TO OBSERVE THE INSTRUCTIONS, ESPECIALLY THOSE PRECEDED BY CAUTION, WARNING
AND DANGER PRECAUTIONS, CAN CAUSE SERIOUS ACCIDENTS OR DEATH.

11
Rev. 1.0 T380D-T430D
PREFACE
Prefazione
PREFACE
To operate safely it is necessary to:
1) Observe the general use precautions for all mechanical equipment, which are described in Chapter 2;
2) Always follow the use instructions contained in this manual.
3) In the case of difculties in the installation, use or maintenance of the machine, contact specialised technical
personnel (Manufacturer, Dealers, Technical Assistants, etc);
4) Never remove, tamper with or modify any part of the machine unless allowed specically by this manual;
5) Repair or replace the protections and any worn or broken parts in the manner described in this manual;
6) Keep the safety decals perfectly legible;
7) Carry out maintenance operations in compliance with the instructions included in this manual;
8) Observe the safety rules established by law;
9) Always refer to qualied, authorised, adequately instructed and trained personnel.
10) Maintain all the guards in a perfect state of efciency.
All the technical measures for preventing the expulsion of objects adopted in the design
of the machines do not allow absolute safety to be achieved.
Even if the machine is used correctly, there is always the possibility that small stones,
splinters or other objects will get past the safety barriers and will be hurled a long
distance.
It is absolutely mandatory to make sure that THERE IS NOBODY INSIDE THE WORKING
RANGE OF THE MACHINE (AT LEAST 50 METRES) WHILE IT IS OPERATING.
Pay particular attention when working close to roads and/or buildings.
WARNING
Formachinesequippedwith electrical/electrohydrauliccontrolsand/oraheatexchanger
IT IS ABSOLUTELY NECESSARY to consult the assembly instructions for electrical
connection before mounting them on the tractor.
Failure to observe the above-mentioned instructions can damage the electrical system
and invalidate the warranty.
CAUTION

12 T380D-T430D Rev. 1.0
PREFACE
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Prefazione

13
Rev. 1.0 T380D-T430D
GENERAL INFORMATION
01-INFORMAZIONI GENERALI
1 GENERAL INFORMATION
1.1 Purpose and contents of the manual
The purpose of this manual is to provide the customer with all the information necessary in order to use and manage
themachineina correct,independentandsafe manner.Themanualcontainsinformationon safety,technicalaspects,
operation, maintenance and spare parts.
Read this manual carefully and scrupulously observe the instructions provided before any use, check or operation of
the machine.
Correct use and correct maintenance contribute to the good operation and the duration of the machine.
In the event of doubts or questions, please contact the Manufacturer.
This Manual has been drawn up according to the regulations in force at the time of
printing.
CAUTION
The illustrations have a purely indicative value.
Some elements might not graphically correspond to those actually fitted on the
machine.
CAUTION
1.1.1 Who should read this manual
The Manual is intended for the operator and the technicians responsible for the maintenance of the machine.
Operators must not carry out operations meant for qualied technicians.
The instructions contained in this manual are intended for an authorised qualied technician, appropriately instructed
and trained on how to drive the tractor to which the machine is connected.
1.1.2 Updates to the manual
The information, descriptions, and illustrations contained in this manual reect the state of the art at the moment of
machine sale.
As part of the continuous commitment to improving its products and/or for market reasons, the Manufacturer reserves
the right to modify the machine for technical or commercial reasons at any moment whatsoever without prior notice
and without giving the purchaser any legal right to resolve the contract.
Any supplements must be conserved together with the manual and are to be considered as an integral part of the
manual.
1.1.3 Conservation
This manual must be kept close to the machine and away from liquids and any other substance which could cause
it to become illegible.
This manual and the Declaration of Conformity constitute an integral part of the machine up to the moment of its
disposal. 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.

14 T380D-T430D Rev. 1.0
GENERAL INFORMATION
01-INFORMAZIONI GENERALI
1.2 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.
We recommend always using original spare parts and accessories.
Inadditiontoinvalidatingwarrantycoverage,theuseofnon-originalpartsandaccessories
will reduce the duration and performance of the machine.
CAUTION

15
Rev. 1.0 T380D-T430D
GENERAL INFORMATION
1.1
01-INFORMAZIONI GENERALI (Versione della macchina)
A A
A A
A
1 2
3
45
ADirection of movement
1Left machine
2Right machine
3Rear version
4Front version
5Back-face version
1.3 Machine versions
Duringwork, the machineversion variesdepending on the runningdirectionand the positionof themachinein relation
to the tractor.

16 T380D-T430D Rev. 1.0
SAFETY RULES
02-SICUREZZA GENERALE
2 SAFETY RULES
2.1 General safety rules
The machine was designed and manufactured according to appropriate safety standards. Before using the machine,
carefully follow all the precautions and instructions contained in the manual in order to avoid accidents.
►Ensure that, on the ground where you are to work, there are no large stones or rocks, protruding tree stumps,
metal elements of any kind (mesh, wires, cables, chains, tubes, etc.).
►Carefully follow the instructions for the adjustment of the machine height above ground.
►While working with the machine, ensure that there are no persons or animals within a radius of at least 50
metres.
►Never work “ush to the ground” on wet terrain. In these conditions, in fact, there is a risk of taking too much
power from the motor, lling the rotor protective casing with pressed mud, and causing excessive wear on the
ails and the drive belts, thereby compromising machine output and equilibrium.
►A tractor of appropriate power must be adopted for each machine. If a tractor with a power greater than the
machine maximum absorbable power is used, use a PTO shaft with a clutch (torque limiting device), without
which damage can be caused to the drive unit and the ail shaft.
►Examine the safety decals applied on 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.
CAUTION
Before starting up the machine or carrying out maintenance work, carefully read all the
instructions and safety messages contained in the manual and on the machine. Carefully
follow all the accident prevention and safety rules.
CAUTION
►Before starting to use the machine you must be familiar with all its devices, controls and functions.
►Make sure that all the safety devices are in good condition and in the correct position. In the event of faults or
damage, replace them immediately.
►Before getting off the tractor and before each maintenance operation, apply the parking brake, switch off the
engine and remove the ignition key from the dashboard.
►The user is responsible for the maintenance of the machine.
►It is the responsibility of the owner to provide all the instructions to operators or employees before operating on
the machine, according to regulations of the destination country.
►Only an operator who is adequately trained and instructed on the safety rules can operate on the machine.

17
Rev. 1.0 T380D-T430D
SAFETY RULES
02-SICUREZZA GENERALE
DO NOT OPERATE on the machine if there are any persons and/or animals present within
the working range of the machine.
DANGER
Start the machine only when properly seated.
Read the instructions for starting up the machine that are contained in the operator’s
manual.
DANGER
►Always keep the manual at hand so that you can consult it quickly. If the manual is lost or damaged, request a
replacement copy from the Manufacturer.
►Disengage the power takeoff of the tractor (or self-propelled machine) before starting the motor of the
machine.
►The machine is designed to be used by only one operator.
►It is strictly prohibited to work in poor physical conditions, or under the inuence of alcohol, drugs or
medicines.
►Keep the machine clean and free from foreign bodies (debris, tools, other objects), which could cause harm to
the operator or damage to the machine.
Always wear the seat belts. Falls or overturning of the machine can cause serious
injury or death.
WARNING
This machine has been designed for use only with closed-cab tractors and/or self-
propelled machines!
In the case of a tractor with an open cab, the following are required:
1) Personal protection equipment for the operator;
2) Shielding from thrown objects;
3) Roll Over Protective Structure (ROPS) for the self-propelled vehicle.
DANGER
►Prolonged operations can cause physical and mental fatigue. Never operate the machine and tractor when
tired or in a bored mental state.
It is absolutely forbidden to climb or to ride on the machine when it is moving.
DANGER
►Ensure that the PTO shaft is correctly tted after each operation of connecting the machine.
►Disconnect the machine from the tractor only on compact level ground, ensuring that it is still and stable.
Check that the guards of the PTO transmission shaft are in good condition.
When the machine is not coupled to the power unit, place the hydraulic pipes in the
supports provided.
DANGER
►In the event of breakage or deterioration of the PTO shaft guards, replace them immediately.
►Do not use the controls or the exible pipes as handholds. These components are movable and do not offer
steady support.
►Neverwork,walkorstandundertheliftedarm.Toavoidaccidentalfalls,donotcarryout maintenanceoperations
under raised arm unless it is properly supported.
►Never use the arm to raise people or objects.
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 takeoff switched on.
DANGER

18 T380D-T430D Rev. 1.0
SAFETY RULES
02-SICUREZZA GENERALE
Avoid contact with hot surfaces including:
1) Oil tank;
2) Pumps;
3) Motors;
4) Valves;
5) Gearbox;
6) Hydraulic pipe joints.
To avoid scalds and/or burns, use protective gloves and goggles during maintenance
work on hot surfaces.
WARNING
Preferably use the machine in daytime.
In conditions of reduced visibility, use the lighting system of the tractor.
If the machine is used at night:
1) Provide an auxiliary lighting system in order to guarantee good visibility in the whole work area;
2) Do not create dangerous reections for the operator;
3) Have sufcient lighting in the cab in order to guarantee identication of the controls.
Operate only in environments that are well lit by natural or articial light.
During work the operator must have visibility of at least 100 metres.
WARNING
Avoid contact with guard-rails or concrete structures so as not to damage the ails.
DANGER
Replace bent or broken ails with new ails.
Never straighten or weld the ails because doing so can reduce their strength and
compromise safety.
DANGER
Carefully inspect the area in which you will be operating and remove all debris or
foreign material in order to avoid damage to the machine, to persons and/or things.
Any objects that cannot be removed must be clearly marked and avoided by the
operator. Stop cutting immediately if the ails strike a foreign object.
WARNING
Never run the tractor engine in a closed location without adequate ventilation. The
exhaust fumes can be hazardous to health.
DANGER
ENSURE THAT THE CUTTING FLAILS HAVE STOPPED COMPLETELY BEFORE
APPROACHING THE MACHINE.
DANGER
Before leaving the tractor seat and before each maintenance operation, always engage
the parking brake and disengage the PTO. Stop the engine, remove the key from the
dashboard, and wait for all moving parts to stop.
DANGER
Never let children or other people up on top or operate the tractor or the machine. Falls
can cause serious injury or death.
DANGER

19
Rev. 1.0 T380D-T430D
SAFETY RULES
02-SICUREZZA GENERALE
The user may carry out only those maintenance operations that are described in this
manual.
WARNING
Makesuretoperformallmaintenanceoperations(routineandextraordinary)onthetractor
(or self-propelled machine) to which the machine will be connected.
WARNING
►Do not modify the equipment in any way. Unauthorised modication may impair the function and/or safety of the
machine and could affect the life of the equipment. In such a case, the user will be the only party responsible
in case of damage or injury.
Do not tamper with, remove or make inefcient 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;
►Unauthorised modications or interventions;
►Use of non-original spare parts or parts not specically intended for this model;
►Total or partial failure to observe the instructions;
►Failure to observe the common rules for safety at work;

20 T380D-T430D Rev. 1.0
SAFETY RULES
02-Norme per la circolazione stradale
2.2 Safetyrulesconcerningroadtrafc
Whenever the public road network must beused, 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):
►Make sure that all the lights and reectors are correctly working and positioned, clean, and clearly visible as
required by local regulations.
►Before heading out onto the road, consider installing optional light bars.
►When driving on public roads, observe all road regulations.
►Before entering public roads from muddy or unpaved terrain, clean the tires of the tractor (or self-propelled
machine) thoroughly of any residual mud.
Makesurethesteeringandbrakesofthetractor(orself-propelledmachine)areinexcellent
condition and operate properly.
DANGER
►Switch off the tractor PTO.
►Never transport the machine with the moving ail holder shaft, not even for short distances. Make sure that the
rotor control is disengaged and the moving parts of the machine have all come to a complete stop.
►Lock the machine with the safety devices provided.
►If the machine is used for verge maintenance on public roads:
1) The machine must only be driven by personnel specically instructed in safe use;
2) The safety procedures imposed by the competent Body must be adopted;
3) Follow the machine with a vehicle, positioned at a distance of approximately 20-30 metres, in order to
notify road trafc of the possible danger;
4) Place appropriate notices ahead of the machine so that vehicles arriving on the other side of the road will
be able to stay at a safe distance from the working range of the machine;
►Do not allow anyone to ride on the tractor (or self-propelled machine) or on the machine during transport.
►Reduce speed on rough roads and surfaces.
►Use rotating ashing lights on the tractor (or self-propelled machine) during the transport, unless they are
prohibited by local safety regulations.
►Make sure that the machine has been correctly installed on the tractor (or self-propelled machine) and that all
the safety pins have been mounted correctly.
►Use the lifting device of the tractor (or self-propelled machine) to raise the machine coupled to the 3-point
coupling to the maximum height above the ground.
►Test the tractor (or self-propelled machine) at low speed and then increase it slowly. Try the brakes gently to
determine the stopping characteristics of the tractor (or self-propelled machine) with the machine coupled.
Always proceed at a moderate speed, especially on rough surfaces and steep gradients,
to avoid overbalancing. The weight of the machine alters the stability of the tractor (or
self-propelled machine) and inuences its behaviour on the road, steering and braking
capacity.
Check the lifting capacity and the stability of the tractor (or self-propelled machine) to
avoid its tipping over and/or losing the grip of the steering wheels.
WARNING