New Holland T4.90 FB User manual

T4.90 FB / T4.100 FB / T4.110 FB
Tractor
T4.90 FB
T4.100 FB
T4.110 FB
Tractor
Part number
51427780 Part number 51427780
English
April 2018
1/1
© 2018 CNH Industrial Italia S.p.A. All Rights Reserved.
SERVICE MANUAL
SERVICE
MANUAL

INDEX
2
Chapter N° Descripon
1 INTRODUCTION
2 ENGINE
3 CLUTCH HOUSING
4 GEARBOX
5 REAR DIFFERENTIAL
6 REAR FINAL DRIVE UNITS
7 FRONT AXLE
8 TRANSFER CASE
9 REAR POWER TAKE OFF
10 BRAKES
12 HYDRAULIC SYSTEM
13 PLATFORM
14 CAB
15 REAR HITCH
17 ELECTRICAL SYSTEM
18 SPECIAL TOOLS
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INTRODUCTION
1-1
1 : Introduction
Index
1.1 Reading this manual ............................................................................................ 1-3
1.1.1 Introduction....................................................................................................... 1-4
1.1.2 Structure of this manual.................................................................................. 1-4
1.1.3 Identifying the tractor...................................................................................... 1-5
1.2 Safety rules .............................................................................................................. 1-7
1.2.1 Essential preventive guidelines....................................................................... 1-8
1.2.2 Using the tractor safely................................................................................. 1-16
1.3 General .................................................................................................................... 1-19
1.3.1 Spare parts ....................................................................................................... 1-20
1.3.2 Specific tools.................................................................................................... 1-20
1.3.3 Oil seals for rotating shafts .......................................................................... 1-20
1.3.4 Adjuster shims................................................................................................. 1-20
1.3.5 O-ring seals...................................................................................................... 1-21
1.3.6 Sealants used.................................................................................................... 1-21
1.3.7 Spring pins........................................................................................................ 1-21
1.4 Technical characteristics................................................................................. 1-23
1.4.1 Engine ................................................................................................................ 1-24
1.4.2 Transmission .................................................................................................... 1-25
1.4.3 Brakes................................................................................................................ 1-25
1.4.4 Steering wheel................................................................................................. 1-25
1.4.5 Rear power take off....................................................................................... 1-26
1.4.6 Front Power Take Off .................................................................................... 1-26
1.4.7 Rear lift ............................................................................................................. 1-26
1.4.8 Front lift............................................................................................................ 1-26
1.4.9 Hydraulic System............................................................................................ 1-27
1.4.10 Electrical system ............................................................................................. 1-27
1.4.11 Driver zone...................................................................................................... 1-27
1.4.12 Cab..................................................................................................................... 1-28
1.4.13 Towing devices ................................................................................................ 1-28
1.4.14 Towable masses............................................................................................... 1-29
1.4.15 Ballast weights ................................................................................................. 1-29
1.4.16 Weights and dimensions ............................................................................... 1-30
1.4.17 Lubricants......................................................................................................... 1-33
1.4.18 Speed................................................................................................................. 1-34
1.4.19 Conversion tables........................................................................................... 1-37
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INTRODUCTION
1-2
1.5 Tightening torques and sealants ................................................................. 1-39
1.5.1 Tightening torques for nuts.......................................................................... 1-40
1.5.2 Tightening torques for ring nuts ................................................................. 1-40
1.5.3 Tightening torques for hex head screws................................................... 1-41
1.5.4 Tightening torques for stud bolts ............................................................... 1-41
1.5.5 Tightening torques for tapered plugs......................................................... 1-41
1.5.6 Loctite sealant types ...................................................................................... 1-42
1.6 General assembly instructions ..................................................................... 1-43
1.6.1 Oil seals ............................................................................................................ 1-44
1.6.2 O-Rings ............................................................................................................. 1-45
1.6.3 Bearings............................................................................................................. 1-46
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INTRODUCTION
1-3
1.1 Reading this manual
Index
1.1.1 Introduction ........................................................................................................ 1-4
1.1.2 Structure of this manual ............................................................................... 1-4
1.1.3 Identifying the tractor.................................................................................... 1-5
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INTRODUCTION
1-4
1.1.1 Introduction
The purpose of this workshop manual is to provide all the essential information necessary,explain operating
principles and describe the settings which must be made to the different parts and assemblies of our
tractors.
The information and disassembly sequences given in this manual are not exhaustive as the manual itself is
intended for use by technical service personnel who have attended training courses on the product.As a
result,the theoretical knowledge and practical experience acquired during the training course are required
in order to follow the instructions given in this manual.
To prevent the risk of operator error or distraction which could put the technical personnel
working in the service centre at risk,the section "2- Safety rules" must be read before reading
any other part of this manual.
The information contained in this manual is up to date at the time of publication. NEW HOLLAND
reserves the right to modify the contents of this document without notification. If any discrepancies are
noted or for any other queries, contact your area dealer or importer.
1.1.2 Structure of this manual
This manual is subdivided into chapters, which are subdivided in turn into sections.
Pages are numbered from 1 at the start of each chapter, with the page number indicated after the chapter
number.
Example: For example, 3-9 indicates page 9 of chapter 3.
Figures are numbered from 1 at the start of each chapter, with the figure number indicated after the
chapter number.
Example: For example, 8.16 indicates figure 16 of chapter 8.
The special tools deemed necessary to disassemble, reassemble and adjust the respective parts and
assemblies are indicated at the end of each chapter.
The main tightening torques for assembling the parts of the tractor correctly are indicated at the end
of each chapter. For all unspecified tightening torque values, refer to the section "Tightening Torques" in
chapter "1-Introduction"
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INTRODUCTION
1-5
1.1.3 Identifying the tractor
Always cite the identification details of the
machine when contacting theTechnical Support
Service or ordering a part from the Spare
Parts Warehouse. Specifically, the following
information is needed:
- Commercial name;
- Production series;
- Machine type;
- Variant/Version;
- Identification number (serial number).
All the aforementioned details are stamped
on a metal plate fixed to the machine in an
easily accessible place for reference whenever
needed.
1 - Commercial name
2 - Category
3 - EU Homologation
4 - Identification number (serial
number)
1 43 2
Fig. 1.1
Fig. 1.2
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INTRODUCTION
1-6
The chassis number is also stamped on the
chassis itself.
The identification data is punched onto the
front right hand side of the tractor.
Note
See the workshop manual provided by the
respective manufacturer for instructions on
identifying the engine installed in the tractor.
Fig. 1.3
1 -Constructor brand code
2 -Production series
3 -Variant
- Y1/Y2- Engine power
- Y3- Protective structure
4 -Version
- Y4- Speed
- Y5- Engine emissions compliance
stage
- Y6- Brand
5 -Chassis number (serial number)
ZPV TX Y1Y2Y3 Y4Y5Y6 000000
1
2 4
3 5
Fig. 1.4
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INTRODUCTION
1-7
Index
1.2 Safety rules
1.2.1 Essential preventive guidelines .................................................................. 1-8
1.2.1.1 General rules ...................................................................................................... 1-9
1.2.1.1.1 Preliminary guidelines.................................................................................. 1-9
1.2.1.1.2 Work Garments ........................................................................................... 1-9
1.2.1.1.3 Machines and Installations........................................................................ 1-10
1.2.1.1.4 Lifting and transporting............................................................................. 1-10
1.2.1.1.5 Driving in indoor spaces........................................................................... 1-10
1.2.1.1.6 Electricity...................................................................................................... 1-11
1.2.1.1.7 Fire................................................................................................................. 1-11
1.2.1.1.8 Dangerous substances and products ..................................................... 1-11
1.2.1.1.9 Protection against exposure to harmful gas, fumes and dust:.......... 1-11
1.2.1.1.10 Biological agents................................................................................... 1-12
1.2.1.1.11 Guidelines for choosing the correct fire extinguishing
measures................................................................................................ 1-12
1.2.1.2 Implements........................................................................................................ 1-13
1.2.1.3 First Aid.............................................................................................................. 1-13
1.2.1.4 Safety rules regarding the tractor ................................................................ 1-14
1.2.1.4.1 Start............................................................................................................... 1-14
1.2.1.4.2 Engine............................................................................................................ 1-14
1.2.1.4.3 Electrical system ......................................................................................... 1-14
1.2.1.4.4 Hydraulic system ........................................................................................ 1-15
1.2.1.4.5 Disassembly and reassembly.................................................................... 1-15
1.2.2 Using the tractor safely ............................................................................... 1-16
1.2.2.1 ROPS................................................................................................................... 1-17
1.2.2.2 Cab safety .......................................................................................................... 1-18
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INTRODUCTION
1-8
1.2.1 Essential preventive guidelines
The premises, installations and equipment of the repair workshop must all be compliant with applicable
work safety legislation to ensure the health and safety of all persons working in the workshop.
While clearly not exhaustive, the safety rules given in this section provide important information for
workers on the hazards they may encounter while carrying out their jobs.
Your own safety and the safety of others must always be the first priority when working on any machine
of any type.
To work in complete safety, it is essential that personnel understand the nature of the work to be done,
use the right tools and materials for the job correctly, and act with good common sense. Read all the safety
messages in this introduction of this manual and take note of all "Caution", "Warning" and "Danger"
notices in this document.
This symbol means: NOTE!
This symbol is used to draw attention to specific methods or procedures
which must be applied in order to perform maintenance on the tractor
correctly.
This symbol means: WARNING
This symbol is used to draw attention to operations which must be
performed with particular caution as they may put the structure of the
tractor or its components at risk.
This symbol means: ATTENTION!
This symbol is used to draw attention to safety related information.
Read these messages with particular care. Make sure that you have fully
understood what may cause potentially dangerous or fatal accidents.
This symbol means: DANGER!
This symbol is used to identify a situation of danger for yourself and for
others. Read these messages with particular care. Make sure that you have
fully understood what may cause potentially dangerous or fatal accidents.

INTRODUCTION
1-9
1.2.1.1 General rules
1.2.1.1.1 Preliminary guidelines
- always follow the directions given by your
superiors;
- always comply with safety signs;
- do not use machines or installations without
the proper authorisation and do not attempt
to perform any operation that you are not
authorised or qualified to do;
- use all safety and protection devices and
measures properly;
- notify your superiors of any defective or
missing safety and protection devices, and of
any hazardous situations that come to your
attention;
- do not remove or modify any safety or
protection devices unless specifically
authorised to do so;
- notify your superiors immediately of any
injury sustained by yourself or others,
describing the situation as clearly and
completely as possible;
- keep your work space clean and tidy, keep
the floor clear of any materials or objects
not directly required for your job and
avoid spilling greasy or oily products (clean
any spillage immediately with appropriate
absorbent cleaning products).
1.2.1.1.2 Work Garments
- Do not wear loose-fitting garments or
garments with loose or hanging elements
which may become tangled in moving parts.
Only wear garments with tight-fitting cuffs;
- do not wear necklaces, rings, bracelets or
other jewellery;
- do not clean garments with flammable or
harmful substances or with compressed air;
- do not wear sandals, flip-flops, clogs or high-
heeled footwear;
- use the required personal protective devices
at all times (eyewear - face shield - gloves -
shoes etc.).
Fig. 1.5

INTRODUCTION
1-10
1.2.1.1.3 Machines and Installations
- Before starting work, check that the protective devices and guards are fitted correctly in place and in
proper working order, and that all safety devices are working correctly;
- check that any fume extraction and/or ventilation systems in place are working correctly;
- the protective guards and safety devices of machines and installations must never be removed except
when strictly necessary for a specific task and only with prior authorisation from your superiors, who
will inform you of the substitute safety measures to adopt;
- protective guards and safety devices must be refitted correctly and reactivated as soon as the reason
for their temporary removal no longer exists;
- never clean, oil or grease the moving parts of machines and installations by hand;
- never work on or adjust moving parts.
1.2.1.1.4 Lifting and transporting
By hand
- keep your back straight when lifting loads;
- hold the load as safely as possible using the most accessible and comfortable grip points;
- do not carry loads with oil or grease on your hands;
- hand trolleys with no tow bar must always be pushed and not pulled;
- do not place loads near staircases, firefighting installations, first aid stations and transit areas.
When working with motorised machinery
- comply with load limits and drive at an appropriately safe speed in relation to the route taken and the
load carried and to be sure that the machine can be stopped safely;
- ensure that loads are fastened safely with straps and securely attached;
- do not drive with a suspended load in places where a falling load may constitute a hazard - if this is
unavoidable, ensure that all persons in the area are adequately warned of your manoeuvres or keep
persons out of the area;
1.2.1.1.5 Driving in indoor spaces
Persons
- use permitted and designated walkways (pedestrian crossings, walkways etc.);
- do not run;
- do not walk or stand under suspended loads and keep out of areas which may be subject to the risk of
falling loads;
- do not ride on transport or lifting machinery intended for handling materials only.
Vehicles
drive at moderate speed and take all precautions necessary for the route taken - observe all company
regulations and signage.

INTRODUCTION
1-11
1.2.1.1.6 Electricity
- Do not make makeshift connections. In particular, never make a connection by inserting the bare ends
of wires into socket holes;
- always disconnect a plug from the socket by gripping the outer casing of the plug itself, never pull the
cord;
- avoid twisted wires;
- take care not to damage the insulating sheath of wires and the insulated housings of electrical equipment,
and check frequently that they are undamaged;
- report any damage to electrical devices and, in particular, to earth conductors;
- never open electrical cabinets or the casings of electrical equipment and do not attempt to perform
maintenance on electrical cabinets and electrical equipment unless trained and authorised to do so;
- take all precautions to avoid contact with overhead power lines when manoeuvring or working in the
vicinity.
1.2.1.1.7 Fire
In areas and in operations subject to the risk of fire due to the proximity or use of flammable substances:
- do not smoke;
- do not use equipment involving naked flames and do not handle incandescent materials;
- keep flammable materials away from sources of heat;
- do not place materials in front of extinguishers and fire hydrants.
1.2.1.1.8 Dangerous substances and products
When using dangerous chemical products (fire hazard, explosion hazard, irritant, caustic burn hazard, burn
hazard or poisoning hazard), always observe the following precautions:
- keep recipients containing dangerous products open only for the time strictly necessary to use them;
- do not use or transfer dangerous products into containers not intended for use with them or without
the necessary labelling indicating the contents and safety markings;
- when using chemical products, follow the instructions given on the respective labels.
1.2.1.1.9 Protection against exposure to harmful gas, fumes and dust:
- check that any fume extraction systems in place are working correctly;
- use personal protective devices;
- place mobile extractor ducts as close as possible to the source of emissions;
- avoid closing using doors which will obstruct the air flow carrying emissions generated by the extractor
system.

INTRODUCTION
1-12
1.2.1.1.10 Biological agents
- in case of fermentation (due to proliferation of algae),avoid direct contact and use appropriate protective
measures to eliminate the problem;
- only enter areas subject to anaerobic fermentation producing harmful gases (e.g. ammonia) with
appropriate protective breathing equipment.
1.2.1.1.11 Guidelines for choosing the correct fire extinguishing measures
Agente estinguente
Classe di fuoco Acqua Polvere Schiuma
Polveri
speciali
combustibili solidi
ordinari
Solo perincendidi piccole
dimensioni
liquidi infiammabili
Tranne che
utilizzando
attrezzature
adatte
gas infiammabili
metalli combustibili
Possono
reagire con
l'acqua
Apparecchiature
elettriche
Fig. 1.6

INTRODUCTION
1-13
1.2.1.2 Implements
Makeshift, unsuitable and faulty tools can cause problems and accidents. Never use the wrong tools, as
these may put you at risk and compromise the work done.
Only use the special tools recommended by the manufacturer to disassemble, service and refit the
components of the tractor.
Using the correct specific tools will make work less tiring and quicker, letting you save costs while being
sure that the job has been done correctly.
Never use:
- A hammer with a loose head or a damaged handle.
- Pliers or pieces of metal instead of a hammer;
- Drill bits or screws instead of pin punches;
- Worn wrenches or wrenches repaired with welds;
- A steel hammer to tap bearings or heat-treated components (use a bronze or brass hammer).
Certain procedures on components of the tractor require the engine to be separated from the gearbox
and the separation of the front and rear transmission casings.These operations are facilitated and made
safer by using the specific separator trolley kit.
When lifting heavy parts, make sure that all chains, brackets, hooks, cables and ropes used for lifting are
compliant with EC standards.Unless specified otherwise, an adjustable hoisting bracket must be used when
lifting all heavy parts.
All chains and cables used must be parallel to each other and maintained as close as possible to vertical
with respect to the object lifted.
1.2.1.3 First Aid
Mechanics are exposed to a number of risks in
the workplace.
Treat injuries with disinfectant products and
sterile materials, which must be kept in a
specific first aid box equipped in accordance
with applicable legislation.
Fig. 1.7

INTRODUCTION
1-14
1.2.1.4 Safety rules regarding the tractor
Attention
Read the use and maintenance manually thoroughly before boarding the tractor,and follow the instructions
given precisely.
1.2.1.4.1 Start
- Never run the engine in an enclosed space without adequate ventilation or extraction systems for
evacuating the exhaust gas.
- Keep your head, body, limbs, feet, hands and fingers away from rotating fans and belts at all times.
1.2.1.4.2 Engine
- Unscrew the radiator cap very slowly before removing to release pressure from the system.
Only top up with coolant with the engine off or, if still hot, idling.
- To prevent the risk of fire caused by spilt fuel, never refuel the machine while the engine is running,
especially if the engine is hot.
- Never attempt to check or adjust the tension of fan belts while the engine is running. Do not adjust the
fuel injection pump settings while the engine is running.
- Do not lubricate the machine while the engine is running.
1.2.1.4.3 Electrical system
- If it is necessary to use an auxiliary battery, connect the cable terminals correctly: connect (+) to (+)
and connect (-) to (-). Never short-circuit the terminals.
Danger
The gas released by batteries is highly flammable.
When charging a battery, leave the battery compartment uncovered to ensure more effective ventilation.
Never check battery charge by jumpering the terminals with a metal object. Avoid sparks and flame in the
vicinity of batteries. Do not smoke - explosion hazard!
- Check for fuel leaks before starting any work, and rectify any leaks found before continuing.
- Never charge batteries in an enclosed space: ensure that the area is adequately ventilated to prevent
the risk of explosion caused by the build-up of gas released by the batteries during charging.
- Always disconnect the battery before starting any work on the electrical system.
- If the electrolyte in the battery freezes, the battery may explode if you attempt to charge the battery
or push-start the vehicle. Keep the battery fully charged at all times to prevent the electrolyte from
freezing.
- Batteries release corrosive fumes and flammable gases. Sparks, naked flame and incorrectly connected
cables may cause explosions.

INTRODUCTION
1-15
1.2.1.4.4 Hydraulic system
- Pressurised hydraulic fluid escaping from a very small hole may be practically invisible and yet be
projected with sufficient force to penetrate the skin. use a piece of cardboard or wood to search for
leaks. Never search for leaks with your hands. in the event of skin contact with the fluid, seek
immediate medical assistance. Failure to treat a fluid injection injury immediately may lead to severe
infection or skin disease.
- Use specific instruments to check the pressure of the system.
1.2.1.4.5 Disassembly and reassembly
- Lift and handle all heavy parts with lifting equipment of sufficient capacity. Use appropriate straps and
hooks to secure parts when lifting. Use the specific hoisting eye-bolts. Be aware of any persons in the
vicinity of the load being lifted.
- Handle all parts with extreme caution. Never place your hands or fingers between two parts. Wear
approved accident prevention garments and equipment such as safety eyewear, gloves and shoes.
- Do not allow chains or metal cables to twist. Always wear safety gloves when handling cables or chains.

INTRODUCTION
1-16
1.2.2 Using the tractor safely
You need to be suitably qualified and authorised to operate an agricultural tractor safely.To be qualified to
use this tractor,you must also have read and understood the complete contents of the use and maintenance
manual and observe the instructions given precisely.
You must be aware of and understand all applicable work safety regulations. Note that in certain countries,
persons under the age of 18 years are not permitted to operate a tractor.
It is your responsibility to learn these regulations and apply them in the workplace. These regulations
include the following instructions for using the tractor safely.
ATTENTION
The operator must not consume alcohol or take drugs which could impair concentration and/or
coordination.
Observe the following precautions
- Never let minors or unqualified persons drive the tractor.
- Fasten the seat belt if the tractor is equipped with an ROPS safety roll bar.
- If possible, avoid using the tractor near excavation sites or large ditches.
- Reduce speed when steering and when driving across hilly, uneven, slippery or muddy terrain.
- Keep away from steep slopes as they are dangerous.
- Always watch where you are going, especially during headland turns and around trees.
- Never allow anyone to climb onto the tractor or implement.
- Use the tractor calmly, avoiding rushed or sudden manoeuvres: do not steer, start or stop suddenly.
- Only use the drawbar or other specific hitching points to tow. Never attach a towed load above the
centreline of the rear axle.
- Engage the parking brake when the tractor is parked.
- Do not modify or remove any part of component of the original equipment of the tractor.
- Keep others out of your work area.
- Do not use hitching or towing devices that are not intended for your tractor.

INTRODUCTION
1-17
1.2.2.1 ROPS
The tractor may be equipped with an ROPS
safety roll bar and a seat belt. If the ROPS
structure has been removed, the tractor must
be equipped with a new ROPS and seat belt.The
ROPS reduces the risk of injury in the event of a
roll-over.A roll-over without the ROPS roll bar
may cause serious damage and injury.
Fig. 1.8
Usage
- Before using the tractor, make sure that the
ROPS is not damaged and is fastened correctly
to the tractor.
- Never attach chains, cables etc. to the ROPS
or cab to tow a load, as this may cause the
tractor to overturn: always use the drawbar to
tow.
- Always fasten your seat belt. Do not use the
seat belt if the tractor is not equipped with an
ROPS safety roll bar.
- Check the seat belt for damage. Replace the
seat belt if damaged. Fig. 1.9
Damage to ROPS safety roll bar
If the tractor has rolled over or if the ROPS safety roll bar has been damaged (e.g. due to collision with a
bridge), it must be replaced to ensure the same degree of safety originally offered by the tractor.
After an accident, check that the ROPS safety roll bar, the driver seat, the seat belt and the seat belt anchor
points. Replace all damaged parts before using the tractor again.
Do not weld, drill, bend or straighten the ROPS safety roll bar or parts of the cab: these actions will
compromise the original safety of the tractor.