New Holland T1254B , T1404B Tractor Service Repair Manual by Repair manual download

T1254B T1404B Tractor

Part number 48144036

1st edition English August 2017

SER VICE MANUAL

T1254B CKD T6050 CAB 6CY

T1254B SKD T6050Plus

T1404B CKD T6070 CAB 6CY

T1404B SKD T6070Plus

Engine

INTRODUCTION

[10.001] Engine and crankcase

[10.102] Pan and covers

[10.106] V alve drive and gears

[10.101] Cylinder heads

[10.105] Connecting rods and pistons

Crankshaft and flywheel

10] Balancer and damper [10.1

[10.210] Lift pump and lines

[10.218] Fuel injection system

[10.202]

[10.250] T urbocharger and lines

[10.254] Intake and exhaust manifolds and muf fler

[10.414] Fan and drive

[10.310]

Clutch hydraulic release control

10] Clutch and components

[18.1 12] Slip clutch flywheel damper

ransmission

14] Mechanical transmission 1 transmission transmission external controls

Creeper

Overdrive

12]

transmission internal components

Power shuttle transmission

Mechanical transmission external controls

Power shuttle transmission external controls

Mechanical transmission internal components 1

[21.154] Power shuttle transmission internal components

Four-Wheel Drive (4WD) system

control

Drive shaft

Front axle system

[25.100] Powered front axle

[25.102] Front bevel gear set and dif ferential

[25.108] Final drive hub, steering knuckles, and shafts

[25.122] Axle suspension control

Rear axle system

Powered rear axle

Rear bevel gear set and dif ferential Planetary and final drives

[31.101] Rear mechanical control

[31.104] Rear electro-hydraulic control

[31.1 14] T wo-speed rear Power T ake-Of f (PT

[31.142] Front Power T f (PT control

Front Power T f (PT

Brakes and controls

Hydraulic service brakes

10] Parking brake parking lock

T railer brake hydraulic control

Front axle brake

Hydraulic systems .

Hydraulic systems

[35.300] Reservoir , cooler , and filters

Fixed displacement pump

V ariable displacement pump

Charge pump

Regulated/Low pressure system

Remote control valves

Auxiliary hydraulic pump

14] hitch control valve

16] hitch cylinder Front hitch controls and lines

Hitches, drawbars, and implement couplings

[37.1 10] Rear hitch

Rear hitch linkage

Front hitch

Front hitch linkage

Frames and ballasting

Steering

Steering control T rods

Hydraulic control components

Cylinders

Wheels

[44.51 Front wheels

[44.520] Rear wheels

Cab climate control

Heating

V entilation

[50.200] Air conditioning

Electrical systems

Electrical system

Harnesses and connectors

Engine control system

Engine starting system

Alternator

Battery

Fuel tank system

Engine cooling system

Electronic modules

Front axle control system

Rear Power T f (PT control system

Remote control valve electric control

Cab V and (HV AC) controls V and (HV AC) control system

[55.047] Steering control system

[55.523] Cab hitch controls

[55.130] Rear three-point hitch electronic control system

[55.405] External lighting switches and relays

[55.408] W arning indicators, alarms, and instruments

[55.DTC] F AUL T CODES

Engine hood and panels

Foreword

Foreword - How use and navigate through this manual

Foreword Ecology and the Environment

Safety rules

T orque - Minimum tightening torques for normal assembly

T orque - Standard torque data for hydraulic connections

Capacities

Consumables Lubrications and Coolants

Foreword

IMPORT ANT INFORMA TION

All repair and maintenance works listed this manual must carried out only staf f belonging the NEW LAND Service network, strictly complying with the instructions given and using, whenever required, the special tools.

Anyone who carries out the above operations without complying with the prescriptions shall responsible for the subsequent damages.

The manufacturer and all the organizations its distribution including - without limitation - regional local dealers, reject any responsibility for damages due the anomalous behavior parts and / components not approved the manufacturer including those used for the servicing repair the product manufactured marketed the Manufacturer any warranty given attributed the product manufactured marketed the Manufacturer case damages due anomalous behavior parts and / components not approved the Manufacturer

reproduction, though partial text and illustrations allowed.

Foreword - How use and navigate through this manual

This manual has been produced a new technical information This new system designed deliver technical information electronically through web delivery and paper A coding system called SAP has been developed link the technical information other Product Support functions, e.g., W arranty .

echnical information written support the maintenance and service the functions systems a When a customer has a concern their machine usually because a function system their chine not working not working ficiently , not responding correctly their When you refer the technical information this manual resolve that you will find all the information classified using the SAP coding, according the functions systems that machine. Once you have located the technical information for that function you will then find all the electrical hydraulic and sub assemblies for that function Y will also find all the types information that have been written for that function system: the technical data the functional data (how the diagnostic data (fault codes and and the service data install

integrating SAP coding into technical you will able search and retrieve just the right piece technical information you need resolve that concern his This made possible attaching 3 categories each piece technical information during the authoring process.

The first category the the second category the Information T ype and the third category the Product:

• LOCA TION - the component function the machine, that the piece technical information going describe Fuel

• INFORMA TION TYPE - the piece technical information that has been written for a particular component tion the machine Capacity would a type T echnical Data describing the amount fuel held the fuel

• PRODUCT - the model for which the piece technical information written.

Every piece technical information will have those three categories attached Y will able use any nation those categories find the right piece technical information you need resolve that concern their

That information could be:

• the procedure for how remove the cylinder head

• a table specifications for a hydraulic pump

• a fault code

• a troubleshooting table

• a special tool

Manual content

This manual divided into Sections. Each Section then divided into Chapters. Contents pages are included the beginning the then inside every Section and inside every Chapter alphabetical Index included the end each Chapter Page number references are included for every piece technical information listed the Chapter Contents Chapter

Each Chapter divided into four Information types:

• T echnical Data (specifications) for all the electrical hydraulic assemblies sub -

• Functional Data (how works) for all the mechanical, electrical hydraulic devices, components, assemblies sub -

• Diagnostic Data (fault electrical and hydraulic troubleshooting) for all the electrical hydraulic assemblies sub -

• Service Data (remove install) for all the electrical hydraulic assemblies sub -

Sections

Sections are grouped according the main functions a systems the Each Section identified a number The Sections included the manual will depend the type and function the machine that the manual written for . Each Section has a Contents page listed alphabetic / numeric order . This table illustrates which Sections could included a manual for a particular

PRODUCT T ractors

V ehicles with working arms: skid forage

Seeding, planting, floating, spraying

SECTION

- Maintenance

- Machine completion and equipment

- Engine

- Main gearbox and drive

- Clutch

- T ransmission

- Four wheel drive (4WD) system

- Front axle system

- Rear axle system

- Hydrostatic drive

- Power T ake - f (PT

- Brakes and controls

- Hydraulic systems

- Pneumatic system

- drawbars and implement couplings

- Frames and ballasting

- Steering

- Wheels

- Steering clutches

- T racks and track suspension

- Cab climate control

- Electrical systems

- Grape harvester shaking

- Attachments / headers

Mounted equipment and

X X X X

X X X

X X

X X X

X X

X X X X

X X X

X X

X X X

X X X X

- Product feeding X

INTRODUCTION

- Metering system

- Pressing - Bale formation

- Chemical applicators

- Chopping

- Threshing

- T ying / W rapping / T wisting

- Bale wagons

- Ejection

- Lubrication system

- Separation

- Residue handling

- Cleaning

- Soil preparation / Finishing

- Secondary cleaning / Destemmer

- Seeding

- Spraying

- Planting

- Crop storage / Unloading

- Front loader and bucket

- T elescopic single arm

- dippers and buckets

- Dozer blade and arm

- Accessories

X X X X

- T ools X X X X X

- bodywork and decals X X X X

Chapters

Each Chapter identified a number e.g. Engine - Engine and crankcase10.001. The first number identical the Section number Chapter inside Section The second number representative the Chapter contained within the CONTENTS

The Chapter Contents lists all the technical data functional data (how diagnostic data (fault codes and troubleshooting), and service data (remove, install, adjust, etc.), that have been written that Chapter for that function system the

INDEX

The Chapter Index lists alphabetical order all the types information (called information units) that have been written that Chapter for that function system the Index

Information units and information search

Each chapter composed information units. Each information unit has the SAP code shown parentheses. This indicates the function and type information that information Each information unit has a page reference within that Chapter The information units provide a quick and easy way find just the right piece technical information you are looking for

unit

SAP code classification Engine Pan and covers Engine block cover Front Service

Navigate the correct information unit you are searching for identifying the function and information type from the SAP

• (1) Location and (2) Information type.

• (A) corresponds the sections the service (B) corresponds the chapters the service manual. After (B) there may some additional information. this case shows “.01”, which represents the block cover These options may front / rear , left / hydraulic / mechanical (C) corresponds the type information listed the chapter contents: T echnical Functional (A) and (B) are also shown the page numbering the page footer . THE REST THE CODING NOT LISTED ALPHANUMERIC ORDER THIS

• Y will find a table contents the beginning and end each section and chapter Y will find alphabetical index the end each chapter

• referring (A) , (B) and (C) the you can follow the contents index (page numbers) and quickly find the information you are looking for .

Page header and footer

The page header will contain the following references:

• Section and Chapter description

The page footer will contain the following references:

• Publication number for that

• V ersion reference for that publication.

• Publication date

• Section, chapter , and page reference e.g. 10.102 / 9

NHIL12GEN0070A 1

Foreword Ecology and the

Environment

air , and water are vital factors agriculture and life When legislation does not yet rule the treatment some the substances which are required advanced technology , common sense should govern the use and disposal products a chemical and petrochemical nature.

NOTICE: The following are recommendations which may assistance:

• Become acquainted with and ensure that you understand the relative legislation applicable your country

• Where legislation exists, obtain information from suppliers oils, filters, batteries, fuels, antifreeze, cleaning with regard their fect man and nature and how safely use and dispose these sub-

• Agricultural consultants many able help you

HELPFUL HINTS

• A void filling tanks using cans inappropriate pressurized fuel delivery systems which may cause considerable

• avoid skin contact with all Most them contain substances which may harmful your

• Modern oils contain additives. not burn contaminated fuels and waste oils ordinary heating systems.

• A void spillage when draining f used engine coolant gearbox and hydraulic brake not mix drained brake fluids fuels with lubricants. Store them safely until they can disposed a proper way comply with local legislation and available

• Modern coolant antifreeze and other should replaced every two They should not allowed get into the soil but should collected and disposed properly

• not open the air - conditioning system contains gases which should not released into the phere. Y our NEW HOLLAND dealer air conditioning specialist has a special extractor for this purpose and will have recharge the system properly

• Repair any leaks defects the engine cooling hydraulic system immediately .

• not increase the pressure a pressurized circuit this may lead a component

• Protect hoses during welding penetrating weld splatter may burn a hole weaken allowing the loss

Safety rules

IMPORT ANT NOTICE

All maintenance and repair operations described this manual should carried out exclusively authorised All instructions should carefully observed and special equipment where indicated should Anyone who carries out service operations described without carefully observing these instructions will directly responsible for any damage

NOTES FOR EQUIPMENT

Equipment shown this manual is:

• designed expressly for use these tractors;

• necessary make a reliable repair;

• accurately built and strictly tested fer ficient and long - lasting working life.

NOTICES

The words “front”, “rear”, hand”, and refer the dif ferent parts seen from the operator ’ s seat oriented the normal direction movement the tractor

SAFETY RULES

P A Y A TTENTION T O THIS SYMBOL

This warning symbol points out important messages involving personal safety Carefully read the safety rules contained herein and follow advised precautions avoid potential hazards and safeguard your safety this manual you will find this symbol together with the following key - words: W ARNING - gives warning about improper repair operations and potential consequences fecting the service s personal safety DANGER - gives specific warning about potential dangers for personal safety the operator other persons directly indirectly involved the operation.

T O PREVENT ACCIDENTS

Most accidents and personal injuries taking place workshops are due from non - observance some essential rules and safety

The possibility that accident might occur with any type machines should not disregarded, matter how well the machine question was designed and

A wise and careful service technician the best precautions against accidents.

Careful observance this basic precaution would enough avoid many severe

DANGER

Never carry out any cleaning, lubrication maintenance operations when the engine running.

SAFETY RULES

Generalities

• Carefully follow specified repair and maintenance procedures.

• not wear unbuttoned flapping clothing such torn open jackets shirts with open zips which could get caught moving Use approved safety clothing such anti - slipping footwear , safety

• W ear safety glasses with side guards when cleaning parts using compressed air

• Damaged frayed wires and chains are not use them for lifting

• W ear suitable protection such approved eye special gloves and footwear whenever welding. All persons standing the vicinity the welding process should wear approved eye protection. NEVER LOOK A T THE WELDING ARC YOUR EYES ARE NOT SUIT ABL Y

• Never carry out any repair the machine someone sitting the operator ’ s except they are qualified operators assisting the operation carried

• Never operate the machine use attachments from a place other than sitting the operator ’ s seat the side the machine when operating the fender

• Never carry out any operation the machine when the engine except when specifically Stop the engine and ensure that all pressure relieved from hydraulic circuits before removing caps, covers, valves, etc.

• All repair and maintenance operations should carried out with the greatest care and

• Disconnect the batteries and label all controls warn that the tractor being serviced. Block the machine and all equipment which should

• Never check fill fuel tanks nor use starting liquid you are smoking near open flames such fluids are

• The fuel filling gun should always remain contact with the filler Maintain this contact until the fuel stops flowing into the tank avoid possible sparks due static electricity buildup.

• T o transfer a failed tractor , use a trailer a low loading platform trolley

• T o load and unload the machine from the transportation means, select a flat area providing a firm support the trailer truck Firmly tie the machine the truck trailer platform and block wheels required the transporter

• Always use lifting equipment appropriate capacity lift move heavy

• Chains should always safely Ensure that fastening device strong enough hold the load persons should stand near the fastening point.

• The working area should always kept CLEAN and Y Immediately clean any spillage water

• Never use gasoline, diesel oil other flammable liquids cleaning agents. Use non - flammable non - toxic etary

• not pile grease oil soaked they constitute a great fire Always place them into a metal container

ART

• Never run the engine confined spaces which are not equipped with adequate ventilation for exhaust gas

• Never bring your body , fingers near fans rotating

ENGINE

• Always loosen the radiator cap very slowly before removing allow pressure the system Coolant should topped only when the engine

• not fill fuel tank when the engine running.

• Never adjust the fuel injection pump when the tractor

• Never lubricate the tractor when the engine running.

ELECTRICAL SYSTEMS

• necessary use auxiliary batteries, cables must connected both sides follows: (+) (+) and ( ( A void short - circuiting the GAS RELEASED FROM TTERIES HIGHL Y During

leave the battery compartment uncovered improve A void sparks flames near the battery

• not charge batteries confined

• Always disconnect the batteries before performing any type service the electrical

HYDRAULIC SYSTEMS

• Some fluid coming out from a very small port can almost invisible and strong enough penetrate the For this NEVER USE YOUR HANDS T O CHECK FOR but use a piece cardboard a piece wood for this any fluid injected into the seek medical aid immediately Lack immediate medical attention may result serious infections dermatitis.

• Always take system pressure readings using the appropriate

WHEELS AND TYRES

• Check that the tyres are correctly inflated the pressure specified the manufacturer Periodically check for possible damage the rims and

• Stay the tyre side when

• Check the pressure only when the tractor unloaded and tyres are cold avoid wrong readings due over -

• Never nor weld a rim with the inflated tyre

• T o remove the wheels, block both front and rear tractor wheels. Raise the tractor and install safe and stable supports under the tractor accordance with regulations

• Deflate the tyre before removing any object caught into the tyre tread.

• Never inflate tyres using flammable gases they may generate explosions and cause injuries REMOV

AND INST ALLA TION

• Lift and handle all heavy components using lifting equipment adequate capacity Ensure that parts are supported appropriate slings and Use lifting eyes provided this T ake care the persons near the loads

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