9803/3130 Issue 1

Introduction

This publication is designed for the benefit of JCB Distributor Service Engineers who are receiving, or have received,training by JCB Technical Training Department.

It is assumed that these personnel have a sound knowledge of workshop practice, safety procedures and generaltechniques associated with the maintenance and repair of hydraulic earthmoving equipment. Therefore, these basicsubjects generally are omitted from this manual, the intention being to convey only more specialised informationconcerning particular aspects of a machine or component.

For example, renewal of oil seals, gaskets etc., and any component showing obvious signs of wear or damage isexpected as a matter of course and, therefore, information of this nature is included only in the context of specialisedprocedures or where a range of wear tolerances is required. Similarly, it is expected that components will be cleanedand lubricated where appropriate, also that any opened hose or pipe connections will be blanked to prevent excessiveloss of hydraulic fluid and ingress of dirt. Finally, please remember above all SAFETY MUST COME FIRST!

The manual is compiled in sections, the first three are numbered and contain information as follows:

1 = General Information - includes torque settings and service tools2 = Care & Safety - includes warnings and cautions pertinent to aspects of workshop procedures etc.3 = Routine Maintenance - includes service schedules and recommended lubricants for the

machine.

The remaining sections are alphabetically coded and deal with Dismantling, Overhaul etc. of specific components,for example:

A = AttachmentsB = Body & Framework ... etc.

The page numbering in each alphabetically coded section may not be continuous. This allows for the insertion of newitems in later issues of the manual.

Section contents, technical data, circuit descriptions, operation descriptions etc. are inserted at the beginning of eachalphabetically coded section.

All sections are listed on the front cover; tabbed divider cards align directly with individual sections on the front coverfor rapid reference.

Illustrations which show a dismantled component are numbered as a guide to the dismantling sequence, whichgenerally can be reversed for assembly.

Torque settings are given as a 'mean' figure which may be varied by plus or minus 3%. Torque figures indicated arefor dry threads, hence for lubricated threads may be reduced by one third.

'Left Hand' and 'Right Hand' are as viewed from the rear of the machine.

References to alternative servicing intervals are to be treated on a 'whichever occurs first' basis.

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9803/3130 Issue

General InformationSection 1 Section 1

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Identification 1 - 1

*Preparation for Storage 2 - 1*Preparation after Storage 2 - 1

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Identification Plate

Your machine is fitted with an identification plate whichis located on the front of the mainframe.

1

JCB HYDRAPOWER LTDRIVERSIDE, RUGELEY,STAFFS, ENGLANDCONSTRUCTOR

ProductIdentificationNumberVIN Vehicle Identification Number

ENGINE SERIAL NUMBER

SLEW GEARBOX SERIAL NUMBER

WEIGHT kg

LH TRACK GEARBOX SERIAL NUMBER

RH TRACK GEARBOX SERIAL NUMBER

ENGINE POWER kW @ RPM

FMI 4063

BSEN ISO9001

H04340

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General Information

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Preparation after Storage

The operations to remove a machine from storage(-15oC to 44o C) and prepare it for use are given below.

1 Lower the fuel tank to ensure that sufficient air spaceexists in the tank.

2 Check all oil and water levels, adjust contents tocorrect levels as necessary.

3 Ensure the battery is fully charged.

4 Reconnect battery.

5 Remove electrical contact from fuel injection pumpsolenoid.

6 Crank engine for 20 seconds or until oil pressurewarning light goes out.

7 Reconnect electrical supply to the fuel injectionpump solenoid.

8 Start the engine. If the engine fails to start afterseveral attempts, bleed the fuel system.

9 Adjust track tensions.

10 Grease all lubrication points.

Preparation for Storage

The operations to place a machine into storage (-15oC to44o C) are given below.

1 Park the machine safely with the bucket and dipperrams retracted and the dig end outstretched. Lowerthe boom until the bucket rests on the ground.Lower the dozer to the ground.

2 Switch off the engine. Operate controls to releasepressure from the rams.

3 Disconnect battery to prevent discharge.

4 Ensure the fuel tank is filled to a maximum, leavingno air space.

5 Ensure hydraulic tank is filled to maximum on thesight gauge.

6. Spray exposed ram rods with Waxoyl.

7. Slacken off rubber tracks until no visible springtension exists.

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Section 2 Section 2Care & Safety

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Safety Notices 1 - 1

General Safety 2 - 1

Operating Safety 3 - 1

Maintenance Safety 4 - 1

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Safety Notices

In this handbook and on the machine there are safety notices. Eachnotice starts with a signal word. The signal word meanings are givenbelow.

DANGER

Denotes an extreme hazard exists. If proper precautions are not taken it ishighly probable that the operator (or others) could be killed or seriously injured.INT-1-2-1

WARNING

Denotes a hazard exists. If proper precautions are not taken, the operator (orothers) could be killed or seriously injured.INT-1-2-2

CAUTION

Denotes a reminder of safety practices. Failure to follow these safety practicescould result in injury to the operator (or others) and possible damage to themachine.INT-1-2-3

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All construction and agricultural equipment can behazardous. When a JCB Mini Excavator is correctlyoperated and properly maintained it is a safe machine towork with. But when it is carelessly operated or poorlymaintained it can become a danger to you (the operator)and others.

Do not work with the machine until you are sure that youcan control it.

Do not start any job until you are sure that you and thosearound you will be safe.

*If you are unsure of anything, about the machine or thejob, ask someone who knows. Do not assume anything.

Remember

BE CAREFULBE ALERTBE SAFE

GEN-1-6

As well as the warnings in the following pages, specificwarnings are given throughout the book. This section isdesigned to give a safety code for use of the machinegenerally and for operation and maintenance practices.

Note: This section includes a certain amount of operatingsafety information. But remember that whenever youdrive the machine or operate its controls you are, ineffect, a machine operator. Therefore, you should readand understand the information given in the OperatorHandbook before driving the machine or operating itscontrols.

General Safety

WARNING

Lifting EquipmentYou can be injured if you use faulty lifting equipment.Make sure that lifting equipment is in good condition.Make sure that lifting tackle complies with all localregulations and is suitable for the job. Make sure thatlifting equipment is strong enough for the job.INT-1-3-7

WARNING

ClothingYou can be injured if you do not wear the proper clothing.Loose clothing can get caught in the machinery. Wearprotective clothing to suit the job. Examples of protectiveclothing are: a hard hat, safety shoes, safety glasses, awell fitting overall, ear-protectors and industrial gloves.Keep cuffs fastened. Do not wear a necktie or scarf. Keeplong hair restrained.INT-1-3-6

WARNING

Care and AlertnessAll the time you are working with or on the machine, takecare and stay alert. Always be careful. Always be alert forhazards.INT-1-3-5

WARNING

Raised EquipmentRaised equipment can fall and injure you. Do not walk orwork under raised equipment unless safely supported.13-1-1-6

DANGER

Before removing the boom from the machine, ensure thatthe counterweight is adequately supported as in certainground conditions the machine could tip backwards.Never travel or transport the machine with the boomremoved.BF 6-3

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Operating Safety

WARNING

EngineThe engine has rotating parts. Do not open the enginecover while the engine is running. Do not use the machinewith the cover open.INT-2-1-6

WARNING

Entering/LeavingAlways face the machine when entering and leaving thecab. Use the step(s) and handrails. make sure the step(s),handrails and boot soles are clean and dry. Do not jumpfrom the machine. Do not use the machine controls ashandholds, use the handrails.INT-2-1-7

WARNING

VisibilityAccidents can be caused by working in poor visibility.Keep windows clean and use your lights to improvevisibility. Do not operate the machine if you cannot seeproperly.INT-2-1-11

WARNING

Machine LimitsOperating the machine beyond its design limits candamage the machine, it can also be dangerous. Do notoperate the machine outside its limits. Do not try toupgrade the machine performance with unapprovedmodifications.INT-2-1-4

WARNING

Exhaust GasesBreathing the machine exhaust gases can harm andpossibly kill you. Do not operate the machine in closedspaces without making sure there is good ventilation. Ifpossible, fit an exhaust extension. If you begin to feeldrowsy, stop the machine at once. Get out of the cab intofresh air.INT-2-1-10

WARNING

Hazardous AtmospheresThis machine is designed for use in normal outdooratmospheric conditions. It should not be used in anenclosed area without adequate ventilation. Do not usethe machine in a potentially explosive atmosphere, i.e.combustible vapours, gas or dust, without first consultingyour JCB Hydrapower Distributor.INT-2-1-14

WARNING

Ramps and TrailersWater, mud, ice, grease and oil on ramps or trailers cancause serious accidents. Make sure ramps and trailersare clean before driving onto them. Use extreme cautionwhen driving onto ramps and trailers.INT-2-2-6

WARNING

CommunicationsBad communications can cause accidents. Keep peoplearound you informed of what you will be doing. If you willbe working with other people, make sure any hand signalsthat may be used are understood by everybody. Worksites can be noisy, do not rely on spoken commands.INT-2-2-3

WARNING

SparksExplosions and fire can be caused by sparks from theexhaust or the electrical system. Do not use the machinein closed areas where there is flammable material, vapouror dust.INT-2-2-10

WARNING

ControlsKeep the machine controls clean and dry. Your handsand feet could slide off slippery controls. If that happensyou will lose control of the machine.2-2-3-6

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Maintenance Safety

WARNING

Soft GroundA machine can sink into soft ground. Never work under amachine on soft ground.INT-3-2-4

WARNING

Metal SplintersYou can be injured by flying metal splinters when drivingmetal pins in or out. Use a soft faced hammer or drift toremove and fit metal pins. Always wear safety glasses.INT-3-1-3

WARNING

CommunicationsBad communications can cause accidents. If two or morepeople are working on the machine, make sure each isaware of what the others are doing. Before starting theengine make sure the others are clear of the dangerareas; examples of danger areas are: the rotating bladesand belt on the engine, the attachments and linkages, andanywhere beneath or behind the machine. People can bekilled or injured if these precautions are not taken.INT-3-1-5

WARNING

Diesel FuelDiesel fuel is flammable; keep naked flames away fromthe machine. Do not smoke while refuelling the machineor working on the engine. Do not refuel with the enginerunning. There could be a fire and injury if you do notfollow these precautions.INT-3-2-2

WARNING

PetrolDo not use petrol in this machine. Do not mix petrol withthe diesel fuel; in storage tanks the petrol will rise to the topand form flammable vapours.INT-3-1-6

WARNING

OilOil is toxic. If you swallow any oil, do not induce vomiting,seek medical advice. Used engine oil contains harmfulcontaminants which can cause skin cancer. Do not handleused engine oil more than necessary. Always use barriercream or wear gloves to prevent skin contact. Wash skincontaminated with oil thoroughly in warm soapy water. Donot use petrol, diesel fuel or paraffin to clean your skin.INT-3-2-3

WARNING

FiresIf your machine is equipped with a fire extinguisher, makesure it is checked regularly. Keep it in the operator's cabuntil you need to use it.

Do not use water to put out a machine fire, you couldspread an oil fire or get a shock from an electrical fire. Usecarbon dioxide, dry chemical or foam extinguishers.Contact your nearest fire department as quickly aspossible. Firefighters should use self-contained breathingapparatus.INT-3-2-7/1

WARNING

BatteryA battery with frozen electrolyte can explode if it is used orcharged. Do not use a machine with a frozen battery. Tohelp prevent the battery from freezing, keep the batteryfully charged.INT-3-1-7

WARNING

Battery GasesBatteries give off explosive gases. Keep flames andsparks away from the battery. Do not smoke close to thebattery. Make sure there is good ventilation in closedareas where batteries are being used or charged. Do notcheck the battery charge by shorting the terminals withmetal; use a hydrometer or voltmeter.INT-3-1-8

WARNING

Battery TerminalsThe machine is negatively earthed. Always connect thenegative pole of the battery to earth.

When connecting the battery, connect the earth lead (-) last.When disconnecting the battery, disconnect the earth lead(-) first.INT-3-1-9

WARNING

Electrical CircuitsUnderstand the electrical circuit before connecting ordisconnecting an electrical component. A wrongconnection can cause injury and/or damage.INT-3-1-4

CAUTION

Never use water or steam to clean inside the cab. The useof water or steam could damage the on-board computerand render the machine inoperable. Remove dirt using abrush or damp cloth.8-3-4-8

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Maintenance Safety (cont'd)

CAUTION

Arc WeldingBefore carrying out any arc welding on the machine,completely remove the Control Computer to avoid damageto the circuits; also disconnect the alternator plug andbattery leads.

*When welding items to the mainframe make sure thatthe earth clamp is positioned on the mainframe andwhen welding to the undercarriage make sure the earthclamp is positioned on the undercarriage. If you earthone and weld the other, you may cause severe damageto the slew ring.

Always connect the earth clamp to any other componentbeing welded, i.e. boom or dipper, to avoid damage topivot pins and bushes.8-1-2-6/1

WARNING

Hydraulic HosesDamaged hoses can cause fatal accidents. Inspect thehoses regularly for:Damaged end fittingsChafed outer coversBallooned outer coversKinked or crushed hosesEmbedded armouring in outer coversDisplaced end fittings.INT-3-3-2

WARNING

DO NOT remove the hydraulic tank filler cap or coverplate when the engine is running. The hydraulic system isunder pressure. You or others could be injured. First stopthe engine and then release the pressure.8-3-4-4/1

WARNING

Hydraulic PressureHydraulic fluid at system pressure can injure you. Beforedisconnecting or connecting hydraulic hoses, stop theengine and operate the controls to release pressuretrapped in the hoses. Makes sure the engine cannot bestarted while the hoses are open.INT-3-1-11/1

WARNING

Hydraulic FluidFine jets of hydraulic fluid at high pressure can penetratethe skin. Do not use your fingers to check for hydraulicfluid leaks. Do not put your face close to suspected leaks.Hold a piece of cardboard close to suspected leaks andthen inspect the cardboard for signs of hydraulic fluid. Ifhydraulic fluid penetrates your skin, get medical helpimmediately.INT-3-2-4

CAUTION

RamsThe efficiency of the rams will be affected if they are notkept free of solidified dirt. Clean dirt from around the ramsregularly. When leaving or parking the machine, close allrams if possible to reduce the risk of weather corrosion.INT-3-2-10

CAUTION

CleaningCleaning metal parts with incorrect solvents can causecorrosion. Use only recommended cleaning agents andsolvents.INT-3-2-11

CAUTION

'O' rings, Seals and GasketsBadly fitted, damaged or rotted 'O' rings, seals andgaskets can cause leakages and possible accidents.Renew whenever disturbed unless otherwise instructed.Do not use Trichloroethane or paint thinners near 'O' ringsand seals.INT-3-2-12

WARNING

Hot CoolantThe cooling system is pressurised when the engine is hot.Hot coolant can spray out when you remove the radiatorcap. Let the system cool before removing the radiatorcap. To remove the cap; turn it to the first notch and let thesystem pressure escape, then remove the cap.INT-3-2-9

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