Hitachi Zaxis 30u-5n User manual

ZX30U-5N •35U-5N • 50U-5N • 60USB-5N HYDRAULIC EXCAVATOR OPERATOR’S MANUAL ENMADG-NA2-2

PRINTED IN JAPAN (E) 2019, 05

URL:http://www.hitachi-c-m.com

This book is printed on recycled paper.

Serial No.

ZX30U-5N 265001 and up

ZX35U-5N 270001 and up

ZX50U-5N 280001 and up

ZX60USB-5N 285001 and up

Hydraulic Excavator

30U-5N

35U-5N

50U-5N

60USB-5N

ENMADG-NA2-2

PART NO.

Operator’s Manual

INTRODUCTION

Read this manual carefully to learn how to operate and

service your machine correctly. Failure to do so could

result in personal injury or equipment damage.

This standard specification machine can be operated

under the following conditions without being modified.

Atmospheric Temperature: −20 °C to 40 °C (−4 °F to 104 °F)

Altitude: 0 m to 1500 m (0 ft to 4900 ft)

In case the machine is used under conditions other than

described above, consult your authorized dealer.

This manual should be considered a permanent part of

your machine and should remain with the machine when

you sell it.

This machine is of metric design. Measurements in this

manual are metric. Use only metric hardware and tools as

specified.

• SIUnits(InternationalSystemofUnits)areusedinthis

manual.

ForreferenceMKSsystemunitsandEnglishunitsare

alsoindicatedinparenthesesaftertheSIunits.

Example:24.5MPa(250kgf/cm²,3560psi)

Right-hand and left-hand sides are determined by

facing in the direction of forward travel.

Write product identification numbers in the Machine

Numbers section. Accurately record all the numbers

to help in tracing the machine should it be stolen.

Your dealer also needs these numbers when you order

parts.Ifthismanualiskeptonthemachine,alsofilethe

identification numbers in a secure place off the machine.

UseonlydieselfuelwithqualityspecifiedinJISK-2204,

EN-590,ASTMD-975,GOSTR52368orGB19147.

Failure to use diesel fuel with quality as specified

abovemayallowtheenginetoemitexhaustgaswhich

cleanness can not conform to the requests in various

relevant regulations. In addition, serious damage to the

engine may result. Consult with your authorized dealer for

detailed information.

Warranty is provided as a part of Hitachi’s support

program for customers who operate and maintain their

equipment as described in this manual. The warranty is

explainedonthewarrantycertificatewhichyoushould

have received from your dealer.

This warranty provides you the assurance that Hitachi

willbackitsproductswheredefectsappearwithinthe

warranty period. In some circumstances, Hitachi also

provides field improvements, often without charge to

the customer, even if the product is out of warranty.

Should the equipment be abused, or modified to

change its performance beyond the original factory

specifications, the warranty will become void and field

improvements may be denied. Settingfueldelivery

above specifications or otherwise overpowering machines

will result in such action.

Onlyqualified,experiencedoperatorsofficiallylicensed

(according to local law) should be allowed to operate

the machine. Moreover, only officially licensed personnel

should be allowed to inspect and service the machine.

PRIOR TO OPERATING THIS MACHINE, INCLUDING

COMMUNICATION SYSTEM, IN A COUNTRY OTHER

THAN A COUNTRY OF ITS INTENDED USE, IT MAY

BE NECESSARY TO MAKE MODIFICATIONS TO IT SO

THAT IT COMPLIES WITH THE LOCAL REGULATORY

STANDARDS (INCLUDING SAFETY STANDARDS)

AND LEGAL REQUIREMENTS OF THAT PARTICULAR

COUNTRY. PLEASE DO NOT EXPORT OR OPERATE

THIS MACHINE OUTSIDE OF THE COUNTRY OF ITS

INTENDED USE UNTIL SUCH COMPLIANCE HAS BEEN

CONFIRMED.

PLEASE CONTACT HITACHI CONSTRUCTION

MACHINERY CO., LTD. OR ANY OF OUR AUTHORIZED

DISTRIBUTOR OR DEALER IF YOU HAVE ANY

QUESTIONS CONCERNING COMPLIANCE.

All information, illustrations and specifications in this manual are based on the latest product information available at the

timeofpublication.Therightisreservedtomakechangesatanytimewithoutnotice.

AllRightsReserved.

T

MACHINE NUMBERS

SAFETY

SAFETY SIGNS

COMPONENTS NAME

OPERATOR’S STATION

BREAK-IN

OPERATING THE ENGINE

DRIVING THE MACHINE

OPERATING THE MACHINE

TRANSPORTING

MAINTENANCE

MAINTENANCE UNDER SPECIAL ENVIRONMENTAL CONDITIONS

STORAGE

TROUBLESHOOTING

SPECIFICATIONS

OPTIONAL ATTACHMENT

INDEX

ENMADG-NA2-2

GETTING ON/OFF THE MACHINE

CONTENTS

MACHINE NUMBERS .........................................................1

SAFETY .......................................................................... S-1

RecognizeSafetyInformation ....................................................S-1

UnderstandSignalWords.............................................................S-1

FollowSafetyInstructions............................................................S-2

PrepareForEmergencies..............................................................S-3

WearProtectiveClothing..............................................................S-3

ProtectAgainstNoise ....................................................................S-4

Inspect Machine ..............................................................................S-4

GeneralPrecautionsforCab........................................................S-5

UseHandrailsandSteps ...............................................................S-6

AdjusttheOperator’sSeat ...........................................................S-6

EnsureSafetyBeforeRisingFromorLeavingOperator’s

Seat .................................................................................................S-7

FastenYourSeatBelt......................................................................S-7

MoveandOperateMachineSafely...........................................S-8

OperateOnlyFromOperator’sSeat..........................................S-8

JumpStarting ...................................................................................S-8

KeepRidersOffMachine ..............................................................S-9

PrecautionsforOperations..........................................................S-9

InvestigateJobSiteBeforehand .............................................S-10

EquipmentofOPG....................................................................... S-11

RestrictionofAttachmentInstallation ................................. S-11

ProvideSignalsforJobsInvolvingMultipleMachines....S-11

ConfirmDirectionofMachinetobeDriven .......................S-11

DriveMachineSafely................................................................... S-12

AvoidInjuryFromRollawayAccidents.................................S-14

AvoidInjuryFromBack-overandSwingAccidents.........S-15

KeepPersonClearFromWorkingArea................................. S-16

NeverPositionBucketOverAnyone .....................................S-16

Avoid Undercutting.....................................................................S-16

Avoid Tipping................................................................................. S-17

NeverUndercutaHighBank....................................................S-17

DigWithCaution ..........................................................................S-18

OperateWithCaution................................................................. S-18

AvoidPowerLines........................................................................S-18

PrecautionsforLightning.......................................................... S-19

ObjectHandling ........................................................................... S-19

ProtectAgainstFlyingDebris .................................................. S-20

ParkMachineSafely.....................................................................S-20

HandleFluidsSafely---AvoidFires........................................S-21

SafetyTransporting ..................................................................... S-22

PracticeSafeMaintenance........................................................S-23

WarnOthersofServiceWork ...................................................S-24

SupportMachineProperly........................................................S-25

StayClearofMovingParts ........................................................S-25

PreventPartsFromFlying .........................................................S-26

Avoid Injury from Attachment Falling Accident ............... S-26

PreventBurns.................................................................................S-27

ReplaceRubberHosesPeriodically........................................ S-28

AvoidHigh-PressureFluids....................................................... S-28

PreventFires...................................................................................S-29

EvacuatinginCaseofFire..........................................................S-31

BewareofExhaustFumes..........................................................S-31

PrecautionsforWeldingandGrinding .................................S-32

AvoidHeatingNearPressurizedFluidLines.......................S-32

Avoid Applying Heat to Lines Containing Flammable

Fluids ...........................................................................................S-32

PrecautionsforHandlingAccumulatorandGas

Damper.......................................................................................S-32

RemovePaintBeforeWeldingorHeating........................... S-33

BewareofAsbestosandSiliconDustandOther

Contamination.........................................................................S-33

PreventBatteryExplosions ....................................................... S-34

PrecautionsforHandlingRefrigerant ................................... S-34

HandleChemicalProductsSafely...........................................S-35

DisposeofWasteProperly.........................................................S-35

NeverRideAttachment.............................................................. S-36

NotesforMufflerFilter(ZX50U-5N,60USB-5N).................S-36

PrecautionsforCommunicationTerminal...........................S-36

NotesonProtectionofOperator’sStationWhenthe

MachineRollsOver................................................................. S-37

SAFETY SIGNS ............................................................. S-38

COMPONENTS NAME.................................................... 1-1

Components Name ........................................................................1-1

GETTING ON/OFF THE MACHINE ................................. 1-2

GettingON/OFFtheMachine.....................................................1-2

OPERATOR'S STATION................................................... 1-3

MufflerFilter(ZX50U-5N,60USB-5N) .......................................1-3

Layout..................................................................................................1-6

KeySwitch ....................................................................................1-8

SwitchPanel................................................................................1-8

Monitor ...............................................................................................1-9

Feature...........................................................................................1-9

ScreenConfiguration................................................................1-9

BasicScreen....................................................................................1-10

Indicators.........................................................................................1-11

OverheatIndicator(1)...........................................................1-11

EngineOilPressureIndicator(2) .......................................1-11

AlternatorIndicator(3) .........................................................1-11

Fuel Level Indicator (4)..........................................................1-11

HowtoUseScreens.....................................................................1-12

DisplayingBasicScreen........................................................1-12

Hour Meter................................................................................1-15

Clock............................................................................................1-15

FuelGauge ................................................................................1-15

CoolantTemperatureGauge ..............................................1-15

OperatingStatusIconDisplay............................................1-15

AlarmOccurrenceScreen.......................................................... 1-16

ErrorDisplayScreen...............................................................1-16

WarningDisplayScreen........................................................ 1-16

AlarmListDisplay ...................................................................1-17

Contents of Alarms ......................................................................1-18

ErrorCode..................................................................................1-18

WarningCodes........................................................................1-18

DTCCodeList................................................................................1-20

MufflerFilter(ZX50U-5N,60USB-5N) ....................................1-25

MufflerFilterConditionDisplay.........................................1-25

MufflerFilterManualRegenerationRequest................1-26

MainMenu(MENU) ....................................................................1-28

CONTENTS

AutoShut-Down...........................................................................1-29

MufflerFilterRegenerationInhibited(ZX50U-5N,

60USB-5N) .................................................................................1-31

SettingProcedure...................................................................1-31

Clock..................................................................................................1-34

ClockAdjustment ...................................................................1-34

DisplayModeSetting............................................................1-36

Trip.....................................................................................................1-37

Functions of Trip Meter ........................................................1-37

DisplayingTripMeter(1)....................................................1-38

DisplayingTripMeter(2)....................................................1-40

ChangeTripMeterSetTime............................................... 1-41

BrightnessAdjustment...............................................................1-43

HeaterOperation(ZX30U-5N,35U-5N,50U-5N)...............1-46

NameandFunctionofEachPartofControlPanel......1-46

HeatingOperation................................................................1-47

DefrosterOperation...............................................................1-47

TipsforOptimalHeaterUsage.................................................1-48

WhenWindowsBecomeClouded ....................................1-48

AirConditionerOperation(Optional)...................................1-49

NameandFunctionofEachPartofControlPanel......1-49

HeatingOperation................................................................1-50

CoolingOperation..................................................................1-50

DefrosterOperation...............................................................1-50

TipsforOptimalAirConditionerUsage ...............................1-51

ForRapidCooling ...................................................................1-51

WhenWindowsBecomeClouded ....................................1-51

Off-SeasonAirConditionerMaintenance......................1-51

Radio(Cabequippedmachine)(Optional).........................1-52

AM/FMRadioOperation(Cabequippedmachine) .......1-53

PartNameandFunction .....................................................1-53

RadioOperation.....................................................................1-53

TuningProcedure ...................................................................1-54

StationPresettingProcedure..............................................1-54

DeletionofPresetMemory ................................................1-54

SoundControl.........................................................................1-55

DigitalClockSettingProcedure......................................... 1-55

DoorLockReleaseLever(Cabequippedmachine) .........1-56

OpeningUpperFrontWindow(cabequipped

machine) ...................................................................................1-57

FrontWindow..........................................................................1-57

RemovingandStoringLowerFrontWindow ...............1-57

AdjustingtheSeat........................................................................1-58

SeatFore-aftAdjustment.....................................................1-58

ToolBox...........................................................................................1-58

SeatBackBox.................................................................................1-58

EmergencyExit(cabequippedmachine) ..........................1-59

SeatBelt...........................................................................................1-60

RoomLamp(cabequippedmachine)..................................1-60

BREAK-IN ....................................................................... 2-1

BreakinginNewMachine ............................................................2-1

OPERATING THE ENGINE .............................................. 3-1

InspectMachineDailyBeforeStarting....................................3-1

BeforeStartingEngine ..................................................................3-2

StartingtheEngine.........................................................................3-3

CheckInstrumentsAfterStartingEngine...............................3-6

UsingBoosterBattery....................................................................3-7

StoppingtheEngine ......................................................................3-9

DRIVING THE MACHINE ................................................ 4-1

TravelLeversandPedals(Optional)..........................................4-1

TravelModeSwitch ........................................................................4-3

Traveling.............................................................................................4-4

TravelingonSoftGround .............................................................4-5

RaiseOneTrackUsingBoomandArm ....................................4-6

Towing Machine ..............................................................................4-7

OperatinginWaterorMud..........................................................4-8

PrecautionsforTravelingonSlopes..........................................4-9

ParkingtheMachineonSlopes...............................................4-10

ParkingtheMachine ...................................................................4-10

OPERATING THE MACHINE........................................... 5-1

ControlLever(ISOPattern) ..........................................................5-1

Boom-SwingPedal..........................................................................5-2

BladeLever ........................................................................................5-3

PrecautionsforBladeOperation................................................5-4

PilotControlShut-OffLever ........................................................5-5

WarmingUpOperation.................................................................5-7

EngineSpeedControl....................................................................5-8

Auto-Idle.............................................................................................5-9

AutoShut-Down...........................................................................5-11

MufflerFilterManualRegeneration.......................................5-14

PowerMode ...................................................................................5-16

OperatingBackhoe......................................................................5-17

GradingOperation.......................................................................5-18

AvoidAbusiveOperation ..........................................................5-19

AvoidExcavationUsingUpperstructureand/orBoom

SwingPower.............................................................................5-19

AvoidDrivingBucketTeethintoGround.............................5-20

AvoidStrikingWithBucket .......................................................5-20

BoomCylindermayHitBlade..................................................5-21

AvoidHittingBladeWithBucket.............................................5-22

AvoidCollidingBladeAgainstRocks.....................................5-22

AvoidCollidingBoomCylinderWithTrack..........................5-22

PrecautionsforInstallingWideBucketorSpecialType

Bucket .........................................................................................5-22

UseCorrectTrackShoe...............................................................5-23

UsingRubberCrawler.................................................................5-24

AvoidotherthanSpecifiedMachineOperations .............5-26

ShackleBracketUsage................................................................ 5-27

EmergencyBoomLoweringProcedure ...............................5-28

PrecautionsforAfterOperations............................................5-30

TRANSPORTING ............................................................ 6-1

TransportingbyRoad ....................................................................6-1

Loading/UnloadingonaTruck...................................................6-2

Fastening Machine for Transporting ........................................6-5

Unloading ..........................................................................................6-6

Lifting Machine ................................................................................6-7

MAINTENANCE.............................................................. 7-1

CorrectMaintenanceandInspectionProcedures...............7-1

ChecktheHourMeterRegularly................................................7-2

CONTENTS

Layout..................................................................................................7-3

MaintenanceGuideTable.............................................................7-4

PreparationsforInspectionandMaintenance .....................7-6

Access Covers....................................................................................7-7

MaintenanceGuide .....................................................................7-10

PeriodicReplacementofParts.................................................7-14

KindofOils......................................................................................7-15

A.Greasing......................................................................................7-19

FrontJointPins ........................................................................7-19

Bucket .........................................................................................7-19

SwingPostandOthers..........................................................7-19

BladePins...................................................................................7-21

SwingBearing..........................................................................7-22

SwingInternalGear................................................................7-23

Control Lever Universal Joint..............................................7-23

B.Engine..........................................................................................7-24

EngineOilLevel.......................................................................7-24

ChangeEngineOil.................................................................7-25

ReplaceEngineOilFilter.......................................................7-25

C. Transmission..............................................................................7-28

TravelReductionGear...........................................................7-28

D.HydraulicSystem.....................................................................7-31

Inspection and Maintenance of Hydraulic

Equipment ...........................................................................7-31

CheckHydraulicOilLevel ....................................................7-35

DrainHydraulicOilTankSump ..........................................7-36

ChangeHydraulicOil............................................................. 7-37

SuctionFilterCleaning..........................................................7-37

ReplaceFull-FlowFilter.........................................................7-41

ReplacePilotOilFilterElement..........................................7-43

CheckHosesandLines .........................................................7-45

E.FuelSystem ................................................................................7-52

RecommendedFuel...............................................................7-52

CheckFuelLevel......................................................................7-53

DrainFuelTankSump............................................................7-54

CheckWaterSeparator(ZX30U-5N,35U-5N)................7-55

BleedAirfromFuelSystem(ZX30U-5N,35U-5N)........7-55

ReplaceFuelMainFilterElement......................................7-58

ReplaceFuelPre-FilterElement(ZX50U-5N,

60USB-5N)...........................................................................7-59

CheckFuelHoses ....................................................................7-60

F. Air Cleaner...................................................................................7-61

CleanAirCleanerOuterElement ......................................7-61

ReplaceAirCleanerOuterandInnerElements............7-61

ReplaceAirCleanerInnerElement(Optional)..............7-61

G.CoolingSystem ........................................................................7-63

CheckCoolantLevel ..............................................................7-64

CheckandAdjustFanBeltTension..................................7-65

Change Coolant.......................................................................7-68

CleanRadiator/OilCoolerCore..........................................7-70

Clean Air Conditioner Condenser .................................... 7-71

CleanAirConditionerCondenserFrontScreen...........7-71

CleanFuelCooler(ZX50U-5N,60USB-5N) .....................7-71

H.ElectricalSystem......................................................................7-72

Batteries .....................................................................................7-72

CheckElectrolyteSpecificGravity ....................................7-75

ReplacingFuses....................................................................... 7-76

I. Miscellaneous.............................................................................7-77

CheckandReplaceBucketTeeth ......................................7-77

ChangeBucket.........................................................................7-79

AdjustTrackSag(RubberCrawler)andCheckfor

Damage................................................................................7-80

CheckRubberTrackforDamage.......................................7-80

ReplaceRubberCrawler......................................................7-82

RemovingRubberCrawler ..................................................7-82

InstallingRubberCrawler ....................................................7-83

CheckTrackSag(SteelCrawler)(Optional).................... 7-84

ConvertingtheTrack .............................................................7-86

CheckandReplaceSeatBelt...............................................7-87

CheckAirConditioner(CabEquippedMachine)......... 7-88

CleanandReplaceHeater/AirConditionerFilter...... 7-91

Clean Circulating Air Filter...................................................7-91

ReplaceCirculatingAirFilter...............................................7-91

Clean Fresh Air Filter..............................................................7-93

ReplaceFreshAirFilter..........................................................7-93

Clean Fresh Air Filter..............................................................7-94

ReplaceFreshAirFilter..........................................................7-94

Clean Cab Floor........................................................................7-95

Check,CleanandFunctionCheckofInjection

Nozzle(ZX30U-5N,35U-5N) ..........................................7-96

Check,CleanandFunctionCheckInjector

(ZX50U-5N,60USB-5N)....................................................7-96

Inspect and Adjust Valve Clearance ................................7-96

CheckandAdjustInjectionTiming(ZX30U-5N,

35U-5N).................................................................................7-96

MeasureEngineCompressionPressure.........................7-96

CheckStarterandAlternator..............................................7-96

CheckCrankcaseBreather..................................................7-96

CheckRadiatorCap...............................................................7-97

CleanEGRCooler(ZX50U-5N/60USB-5N)......................7-97

FunctionCheckIntakeThrottleValve(ZX50U-5N/

60USB-5N)............................................................................7-97

Check,CleanandFunctionCheckEGRValve

(ZX50U-5N/60USB-5N) ....................................................7-97

TighteningandRetightenTorqueofBoltsand

Nuts ........................................................................................7-98

J.MufflerFilter(ZX50U-5N,60USB-5N)...............................7-104

CheckandCleanFilterElementofMufflerFilter.......7-104

CheckandCleanMufflerFilter.........................................7-104

MAINTENANCE UNDER SPECIAL ENVIRONMENTAL

CONDITIONS ................................................................. 9-1

MaintenanceUnderSpecialEnvironmentalConditions...9-1

STORAGE ..................................................................... 10-1

StoringtheMachine....................................................................10-1

TROUBLESHOOTING................................................... 11-1

Troubleshooting ...........................................................................11-1

SPECIFICATIONS ......................................................... 12-1

Std.Specification..........................................................................12-1

WorkingRanges............................................................................12-2

ShoeTypesandApplications................................................... 12-3

CONTENTS

BucketTypesandApplications ...............................................12-4

Std.Specification..........................................................................12-5

WorkingRanges............................................................................12-6

ShoeTypesandApplications................................................... 12-7

BucketTypesandApplications ...............................................12-8

Std.Specification..........................................................................12-9

WorkingRanges..........................................................................12-10

ShoeTypesandApplications.................................................12-11

BucketTypesandApplications .............................................12-12

Std.Specification........................................................................12-13

WorkingRanges..........................................................................12-14

ShoeTypesandApplications.................................................12-15

BucketTypesandApplications .............................................12-16

OPTIONAL ATTACHMENT ........................................... 13-1

HydraulicBreaker,HydraulicCrusherandQuick

Coupler.......................................................................................13-1

Attachment.....................................................................................13-2

PipingforBreakerandCrusher(Optional)........................13-3

AUXFunctionLeverforExtraPiping(Optional)................13-5

PrecautionsforBreakerOperation......................................... 13-6

PrecautionsforCrusherOperation ......................................13-10

ControlLever(SAE-backhoePattern)..................................13-13

FuelFeedDevice(Optional)(ZX50U-5N,60USB-5N).....13-14

Additional Counterweight......................................................13-15

Cab Tilting Mechanism.............................................................13-16

Maintenance...........................................................................13-23

CheckTiltMechanismFulcrumBoltsandWorking

ScrewLockNut...............................................................13-23

Greasing ...................................................................................13-24

INDEX........................................................................... 14-1

MACHINE NUMBERS

ThemanufacturingNos.explainedinthisgroupisthe

individual number (serial No.) given to each machine and

hydraulic components. These numbers are requested when

inquiringanyinformationonthemachineand/orcomponents.

FilltheseserialNos.intheblankspacesinthisgroupto

immediatelymakethemavailableuponrequest.

Machine

MODEL/TYPE:

PRODUCTINDENTIFICATIONNUMBER:

Product Identification Number

PRODUCTIDENTIFICATIONNUMBER:

NOTE:

*HCMADG00X00270001*

PRODUCTIDENTIFICATION

NUMBER(PIN)

Markstoindicatethe

startandendofthePIN

MADB-00-002

MADB-00-003

MADB-00-002

ZX30U-5N,35U-5N

ZX50U-5N,60USB-5N

MACHINE NUMBERS

Engine

TYPE:

MFG.NO.:

MADG-00-001

MADG-00-022

MACHINE NUMBERS

Muffler Filter

TYPE:

MFG.NO.:

DOC (Diesel Oxidation Catalyst)

TYPE:

MFG.NO.:

Travel Motor

TYPE:

MFG.NO.:

M1M0-00-004

MADG-00-017

ZX50U-5N,60USB-5N

MACHINE NUMBERS

Swing Motor

TYPE:

MFG.NO.:

ZX60USB-5N

ZX30U-5N,35U-5N,50U-5N

MADB-00-005

MADC-00-001

MACHINE NUMBERS

MADB-00-006

ZX50U-5N

ZX30U-5N,35U-5N

MADB-00-021

ZX60USB-5N MADC-00-002

Hydraulic Pump

TYPE:

MFG.NO.:

MACHINE NUMBERS

MEMO

..................................................................................................................................................................................................

Recognize Safety Information

These are the SAFETY ALERT SYMBOLS.

 Whenyouseethesesymbolsonyourmachineorinthis

manual, be alert to the potential for personal injury.

Follow recommended precautions and safe operating

practices.

Understand Signal Words

 Onmachinesafetysigns,signalwordsdesignatingthe

degreeorlevelofhazard-DANGER,WARNING,orCAUTION

-areusedwiththesafetyalertsymbol.

DANGER indicates an imminently hazardous situation

which, if not avoided, will result in death or serious injury.

WARNING indicates a potentially hazardous situation

which, if not avoided, could result in death or serious

injury.

CAUTION indicates a potentially hazardous situation

which, if not avoided, may result in minor or moderate

injury.

DANGER or WARNING safety signs are located near

specifichazards.Generalprecautionsarelistedon

CAUTION safety signs.

 Somesafetysignsdonotuseanyofthedesignatedsignal

words above after the safety alert symbol are occasionally

used on this machine.

To avoid confusing machine protection with personal

safety messages, a signal word IMPORTANT indicates a

situation which, if not avoided, could result in damage to

the machine.

fNOTEindicatesanadditionalexplanationforanelement

of information.

S-1

SAFETY

SA-1223

SA-2644

Follow Safety Instructions

Carefully read and follow all safety signs on the machine as

well as all safety messages in this manual.

 Safetysignsmustbeinstalled,maintainedandreplacedif

damaged.

If a safety sign or this manual is damaged or missing,

order a replacement from your authorized dealer in the

same way you order other replacement parts (be sure to

state machine model and serial number when ordering).

Allow only properly trained, qualified, authorized personnel

to operate the machine.

Learn how to correctly operate and service the machine.

 Keepyourmachineinproperworkingcondition.

Unauthorized modifications of the machine may impair

itsfunctionand/orsafetyandaffectmachinelife.

 Donotmodifyanymachinepartswithoutauthorization.

Failure to do so may deteriorate the part safety, function,

and/orservicelife.Inaddition,personalaccident,

machinetrouble,and/ordamagetomaterialcausedby

unauthorizedmodificationswillvoidHitachiWarranty

Policy.

 Nevermodifytheairinletandexhaustpartsand/or

disassemble the muffler filter on the machines equipped

withthemufflerfilter.Avoidgivingshocksonthemuffler

filterbystrikingelementswithotherobjectsordropping

theelements.Failuretodosomayaffecttheexhaustgas

purifying device, possibly damaging it or lowering its

performance.

 Donotuseattachmentsand/oroptionalpartsor

equipment not authorized by Hitachi. Failure to do so

maydeterioratethesafety,function,and/orservicelife

of the machine. In addition, personal accident, machine

trouble,and/ordamagetomaterialcausedbyusing

unauthorizedattachmentsand/oroptionalpartsor

equipmentwillvoidHitachiWarrantyPolicy.

 ThesafetymessagesinthisSAFETYchapterareintended

to illustrate basic safety procedures of machines. However

it is impossible for these safety messages to cover every

possible hazardous situation you may encounter. If you

have any questions concerning safety, you should first

consultyoursupervisorand/oryourauthorizeddealer

beforeoperatingorperformingmaintenanceworkonthe

machine.

SAFETY

S-2

SA-003

Prepare For Emergencies

 Bepreparedifafirestartsorifanaccidentoccurs.

 Keepafirstaidkitandfireextinguisheronhand.

Thoroughly read and understand the label attached on

thefireextinguisheranduseitproperly.

 Toensurethatafireextinguishercanbealwaysused

whennecessary,checkandservicethefireextinguisher

attherecommendedintervalsasspecifiedinthefire-

extinguishermanual.

 Establishemergencyprocedureguidelinestocopewith

any fire or accidents which may occur.

Keep emergency numbers for doctors, ambulance

service, hospitals, and fire department posted near your

telephone.

Wear Protective Clothing

 Wearclosefittingclothingandsafetyequipment

appropriate to the job.

You may need:

A hard hat

 Safetybelt

 Safetyshoes

 Safetyglasses,goggles,orfaceshield

Heavy gloves

Hearing protection

 Reflectiveclothing

 Wetweathergear

 Respiratororfiltermask

Besuretowearthecorrectequipmentandclothingforthe

job.Donottakeanychances.

Avoid wearing loose clothing, jewelry, or other items that

can catch on control levers or other parts of the machine.

 Operatingequipmentsafelyrequiresthefullattentionof

theoperator.Donotwearradioormusicheadphoneswhile

operating the machine.

SAFETY

S-3

SA-437

SA-438

Protect Against Noise

 Prolongedexposuretoloudnoisecancauseimpairmentor

loss of hearing.

 Wearasuitablehearingprotectivedevicesuchas

earmuffs or earplugs to protect against objectionable or

uncomfortably loud noises.

Inspect Machine

If any abnormality is found, be sure to repair it immediately

before operating the machine.

 Inthewalk-aroundinspection,besuretocoverall

pointsdescribedinthe“DailyInspection”sectioninthe

operator’s manual.

SAFETY

S-4

SA-434

SA-435

General Precautions for Cab

 Alwayskeepinsidethecabcleanbyobservinginstructions

below, to prevent any personal accidents from occurring.

 Beforeenteringthecab,thoroughlyremovealldirt

and/oroilsuchasmud,grease,soilorstonesthatmay

messupthecabfromthesolesofyourworkboots.If

any controls such as a pedal is operated while with dirt

and/oroilonthesolesoftheoperator’sworkboots,the

operator’s foot may slip off the pedal, possibly resulting

in a personal accident.

 Donotmessuparoundtheoperator’sseatwithparts,

tools, soil, stones, obstacles that may fold up or turn

over,cansorlunchbox.Theleversorpedalsbecome

inoperableifobstaclejamsinoperationstrokeofthe

travellevers/pedals,pilotcontrolshut-offleverorcontrol

levers, which may result in serious injury or death.

 Avoidstoringtransparentbottlesinthecab.Donot

attach any transparent type window decorations on

the windowpanes as they may focus sunlight, possibly

starting a fire.

 Refrainfromlisteningtotheradio,orusingmusic

headphones or mobile telephones in the cab while

operating the machine.

 Keepallflammablematerialsand/orexplosivesaway

from the machine.

 Afterusingtheashtray,alwayscoverittoextinguishthe

matchand/ortobacco.

 Donotleavecigarettelightersinthecab.Ifthe

temperature in the cab increases, the lighter may

explode.

Use proper floor mat dedicated to the machine. If another

floor mat is used, it may be displaced and contact with

the travel pedals during operation, resulting in serious

injury or death.

SAFETY

S-5

Use Handrails and Steps

Falling is one of the major causes of personal injury.

 Whenyougetonandoffthemachine,alwaysusethe

crawlerinsteadofthestepforsafety.Besureyouhave

adequate footing on the crawler when getting on or off

the machine.

 Whenyougetonandoffthemachine,alwaysfacethe

machine.

 Maintainathree-pointcontactwiththestepsand

handrails.

 Donotuseanycontrolsashandholds.

Never jump on or off the machine. Never mount or

dismount a moving machine.

In case adhered slippery material such as oil, grease,

or mud is present on steps, handrails, or platforms,

thoroughly remove such material.

Never get on and off the machine with tools in your

hands.

Adjust the Operator’s Seat

 Apoorlyadjustedseatforeithertheoperatororthework

athandmayquicklyfatiguetheoperatorleadingtomis-

operation of the machine.

The seat should be adjusted whenever the operator for

the machine changes.

The operator should be able to fully depress the pedals

andtocorrectlyoperatethecontrolleverswithhisback

firmlyagainsttheseatback.

 Ifnot,readjusttheseatforwardorbackward,andcheck

again.

SAFETY

S-6

SA-378

SA-439

Hitachi ZAXIS 30U-5N User manual

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