New Holland CX720 Instrucciones de funcionamiento

NEW HOLLAND

CX720

CX740

CX760

CX780

CX820

CX840

CX860

CX880

REPAIR MANUAL

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REPAIR MANUAL

CX720 , CX740 , CX760 , CX780 , CX820 , CX840 , CX860 , CX880

2 4/7/2006

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Contents

INTRODUCTION

DISTRIBUTION SYSTEMS A

PRIMARY HYDRAULIC POWER SYSTEM A.10.A

SECONDARY HYDRAULIC POWER SYSTEM A.12.A

HYDRAULIC COMMAND SYSTEM A.14.A

PNEUMATIC SYSTEM A.20.A

ELECTRICAL POWER SYSTEM A.30.A

LIGHTING SYSTEM A.40.A

ELECTRONIC SYSTEM A.50.A

POWER PRODUCTION B

ENGINE B.10.A

FUEL AND INJECTION SYSTEM B.20.A

AIR INTAKE SYSTEM B.30.A

EXHAUST SYSTEM B.40.A

ENGINE COOLANT SYSTEM B.50.A

LUBRICATION SYSTEM B.60.A

STARTING SYSTEM B.80.A

POWER TRAIN C

POWER COUPLING Fixed coupling C.10.B

TRANSMISSION Mechanical C.20.B

TRANSMISSION Hydrostatic C.20.F

PROCESS DRIVE Primary process drive C.50.B

TRAVELLING D

FRONT AXLE D.10.A

REAR AXLE D.12.A

2WD-4WD SYSTEM Hydrostatic D.14.E

STEERING Hydraulic D.20.C

SERVICE BRAKE Hydraulic D.30.C

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PARKING BRAKE Hydraulic D.32.C

BODY AND STRUCTURE E

SHIELD E.20.A

OPERATOR AND SERVICE PLATFORM E.30.A

USER CONTROLS AND SEAT E.32.A

USER CONTROLS AND SEAT Operator seat E.32.C

USER PLATFORM E.34.A

ENVIRONMENT CONTROL Heating system E.40.B

ENVIRONMENT CONTROL Air-conditioning system E.40.C

ENVIRONMENT CONTROL Heating, ventilation and air-conditioning E.40.D

SAFETY SECURITY ACCESSORIES Safety E.50.B

TOOL POSITIONING G

LIFTING G.10.A

LEVELLING G.30.A

CROP PROCESSING K

FEEDING Reel feeding K.25.B

FEEDING Header feeding K.25.D

FEEDING Feeder housing K.25.E

THRESHING Conventional threshing K.40.B

SEPARATING Beating K.42.B

SEPARATING Rotary separator K.42.C

SEPARATING Straw walker K.42.E

SEPARATING Straw ﬂow beater K.42.F

STORING AND HANDLING Grain storing K.60.B

CLEANING Primary cleaning K.62.B

CLEANING Tailings return system K.62.C

RESIDUE HANDLING Straw chopper K.64.C

RESIDUE HANDLING Spreader K.64.D

RESIDUE HANDLING Chaff blower K.64.F

2 4/7/2006

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UNLOADING Grain unloading K.72.B

2 4/7/2006

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INTRODUCTION

604_34_001_06 2 4/7/2006

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Contents

INTRODUCTION

Foreword(-A.10.A.40) 3

Basic instructions ( - A.90.A.05) 4

Torque ( - A.90.A.10) 7

Conversion factors ( - A.92.A.21) 10

Product identiﬁcation ( - A.80.A.10) 11

604_34_001_06 2 4/7/2006

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INTRODUCTION

Foreword ( - A.10.A.40)

IMPORTANT INFORMATION

All repair and maintenance works listed in this manual must be carried out only by staff belonging to the NEW HOL-

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 be responsible for the

subsequent damages.

The manufacturer and all the organizations of its distribution chain, including - without limitation - national, regional or

local dealers, reject any responsibility for damages due to the anomalous behavior of parts and/or components not

approved by the manufacturer himself, including those used for the servicing or repair of the product manufactured

or marketed by the Manufacturer. In any case, no warranty is given or attributed on the product manufactured or

marketed by the Manufacturer in case of damages due to an anomalous behavior of parts and/or components not

approved by the Manufacturer.

No reproduction, though partial of text and illustrations allowed

604_34_001_06 2 4/7/2006

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INTRODUCTION

Basic instructions ( - A.90.A.05)

SHIMMING

For each adjustment operation, select adjusting shims and measure individually using a micrometer, then add up

the recorded values. Do not rely on measuring the entire shimming set, which may be incorrect, or the rated value

indicated on each shim.

ROTATING SHAFT SEALS

For correct rotating shaft seal installation, proceed as follows:

•before assembly, allow the seal to soak in the oil it will be sealing for at least thirty minutes

•thoroughly clean the shaft and check that the working surface on the shaft is not damaged

•position the sealing lip facing the ﬂuid; with hydrodynamic lips, take into consideration the shaft rotation direction

and position the grooves so that they will deviate the ﬂuid towards the inner side of the seal

•coat the sealing lip with a thin layer of lubricant (use oil rather than grease) and ﬁll the gap between the sealing

lip and the dust lip on double lip seals with grease

•insertthesealinitsseatandpressdownusingaﬂat punch, do not tap the seal with a hammer or mallet

•whilst inserting the seal, check that it is perpendicular to the seat; once settled, make sure that it makes contact

with the thrust element, if required

•to prevent damaging the seal lip on the shaft, position a protective guard during installation operations

O-RING SEALS

Lubricate the O-RING seals before inserting them in the seats, this will prevent them from overturning and twisting,

which would jeopardise sealing efﬁciency.

SEALING COMPOUNDS

Apply one of the following sealing compounds on the mating surfaces marked with an X: RTV SILMATE,

RHODORSIL CAF 1 or LOCTITE PLASTIC GASKET. Before applying the sealing compound, prepare the surfaces

as follows:

•remove any incrustations using a metal brush;

•thoroughly de-grease the surfaces using one of the following cleaning agents: trichlorethylene, petrol or a water

and soda solution.

COTTER PINS

When ﬁtting split cotter pins, ensure that the pin notch is positioned in the direction of the force required to stress the

pin. Spiral cotter pins do not require special positioning.

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