Hitachi Zaxis 33U-5A User manual

Serial No.
ZX33U-5A 030002 and up
ZX38U-5A 050002 and up
ZX48U-5A 030002 and up
ZX55U-5A 050002 and up
ZX65USB-5A 020001 and up
PRINTED IN JAPAN (E) 2014, 12
ZX33U-5A • 38U-5A • 48U-5A • 55U-5A • 65USB-5A HYDRAULIC EXCAVATOR OPERATOR’S MANUAL ENMADC-1-3
Hydraulic Excavator
URL:http://www.hitachi-c-m.com
33U-5A
38U-5A
48U-5A
55U-5A
65USB-5A
ENMADC-1-3
PART NO.
Operator’s Manual
This book is printed on recycled paper.

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GB252.
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.
©2014 Hitachi Construction Machinery Co., Ltd.
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
INDEX
ENMADC-1-3
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-9
KeepRidersoffMachine...............................................................S-9
PrecautionsforOperations.......................................................S-10
InvestigateJobSiteBeforehand .............................................S-11
InstallOPGGuard.........................................................................S-12
RestrictionofAttachmentInstallation ................................. S-13
ProvideSignalsforJobsInvolvingMultipleMachines....S-13
ConfirmDirectionofMachinetoBeDriven........................S-13
DriveMachineSafely................................................................... S-14
AvoidInjuryfromRollawayAccidents..................................S-16
AvoidInjuryfromBack-OverandSwingAccidents.........S-17
KeepPersonClearfromWorkingArea..................................S-18
NeverPositionBucketOverAnyone .....................................S-18
Avoid Undercutting..................................................................... S-19
Avoid Tipping................................................................................. S-19
NeverUndercutaHighBank....................................................S-20
DigwithCaution........................................................................... S-20
OperatewithCaution .................................................................S-20
AvoidPowerLines........................................................................ S-21
PrecautionsforLightning.......................................................... S-21
ObjectHandling ........................................................................... S-22
ProtectAgainstFlyingDebris ..................................................S-22
ParkMachineSafely..................................................................... S-23
HandleFluidsSafely−AvoidFires............................................S-23
TransportSafely ............................................................................S-24
PracticeSafeMaintenance........................................................ S-25
WarnOthersofServiceWork ...................................................S-26
SupportMachineProperly........................................................ S-27
StayClearofMovingParts ........................................................S-27
PreventPartsfromFlying ..........................................................S-28
Avoid Injury from Attachment Falling Accident ...............S-28
PreventBurns.................................................................................S-29
ReplaceRubberHosesPeriodically........................................ S-30
AvoidHigh-PressureFluids....................................................... S-30
PreventFires...................................................................................S-31
EvacuatinginCaseofFire..........................................................S-33
BewareofExhaustFumes..........................................................S-33
PrecautionsforWeldingandGrinding .................................S-34
AvoidHeatingNearPressurizedFluidLines.......................S-35
Avoid Applying Heat to Lines Containing Flammable
Fluids ...........................................................................................S-35
PrecautionsforHandlingAccumulatorandGas
Damper....................................................................................... S-35
RemovePaintBeforeWeldingorHeating........................... S-36
BewareofAsbestosandSiliconDustandOther
Contamination......................................................................... S-36
PreventBatteryExplosions ....................................................... S-37
ServiceAirConditioningSystemSafely ...............................S-37
HandleChemicalProductsSafely...........................................S-38
DisposeofWasteProperly.........................................................S-38
NeverRideAttachment.............................................................. S-39
PrecautionsforCommunicationTerminal........................... S-39
PrecautionforCommunicationTerminalEquipment .....S-40
SAFETY SIGNS.............................................................................. S-42
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
Layout..................................................................................................1-3
KeySwitch ....................................................................................1-5
SwitchPanel................................................................................1-5
Monitor ...............................................................................................1-6
Feature...........................................................................................1-6
ScreenConfiguration................................................................1-6
BasicScreen.......................................................................................1-7
Indicators............................................................................................1-8
OverheatIndicator(1)..............................................................1-8
EngineOilPressureIndicator(2) ..........................................1-8
AlternatorIndicator(3) ............................................................1-8
Fuel Level Indicator (4).............................................................1-8
HowtoUseScreens........................................................................1-9
DisplayingBasicScreen...........................................................1-9
Hour Meter................................................................................1-13
Clock............................................................................................1-13
FuelGauge ................................................................................1-13
CoolantTemperatureGauge ..............................................1-13
OperatingStatusIconDisplay............................................ 1-13
AlarmOccurrenceScreen.......................................................... 1-14
ErrorDisplayScreen...............................................................1-14
WarningDisplayScreen........................................................1-14
AlarmListDisplay ...................................................................1-15
Contents of Alarms......................................................................1-16
ErrorCode..................................................................................1-16
WarningCodes........................................................................1-16
DTCCodeList................................................................................1-18
MainMenu(MENU) ....................................................................1-20
Clock..................................................................................................1-21
ClockAdjustment ...................................................................1-21
DisplayModeSetting............................................................ 1-23
Trip.....................................................................................................1-24
Functions of Trip Meter ........................................................1-24
DisplayingTripMeter(1)....................................................1-25

CONTENTS
DisplayingTripMeter(2)....................................................1-27
ChangeTripMeterSetTime............................................... 1-28
BrightnessAdjustment...............................................................1-30
HeaterOperation(ZX33U-5A,38U-5A,48U-5A,
55U-5A).......................................................................................1-32
NameandFunctionofEachPartofControlPanel...... 1-32
HeatingOperation................................................................1-33
DefrosterOperation............................................................... 1-33
TipsforOptimalHeaterUsage.................................................1-34
WhenWindowsBecomeClouded ....................................1-34
AirConditionerOperation(Optional)...................................1-35
NameandFunctionofEachPartofControlPanel...... 1-35
HeatingOperation................................................................1-36
CoolingOperation..................................................................1-36
DefrosterOperation............................................................... 1-36
TipsforOptimalAirConditionerUsage ...............................1-37
ForRapidCooling ...................................................................1-37
WhenWindowsBecomeClouded ....................................1-37
Off-SeasonAirConditionerMaintenance......................1-37
Radio(Cabequippedmachine)(Optional).........................1-38
AM/FMRadioOperation(Cabequippedmachine) .......1-39
PartNameandFunction .....................................................1-39
RadioOperation.....................................................................1-39
TuningProcedure ...................................................................1-40
StationPresettingProcedure.............................................. 1-40
DeletionofPresetMemory ................................................1-40
SoundAdjustment .................................................................1-41
DigitalClockSettingProcedure.........................................1-41
DoorLockReleaseLever(Cabequippedmachine) .........1-42
OpeningUpperFrontWindow(Cabequipped
machine) ...................................................................................1-43
FrontWindow..........................................................................1-43
RemovingandStoringLowerFrontWindow ...............1-43
AdjustingtheSeat........................................................................1-44
SeatFore-aftAdjustment..................................................... 1-44
ToolBox...........................................................................................1-44
SeatBackBox.................................................................................1-44
EmergencyExit(Cabequippedmachine).......................... 1-45
SeatBelt...........................................................................................1-46
RoomLamp(Cabequippedmachine)..................................1-46
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...............................3-5
UsingBoosterBattery....................................................................3-6
StoppingtheEngine ......................................................................3-8
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by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-IdleON/OFF...................................................................5-10
PowerMode ...................................................................................5-11
OverloadAlarmSelector(Optional)..................................... 5-12
OperatingBackhoe......................................................................5-13
GradingOperation....................................................................... 5-14
AvoidAbusiveOperation ..........................................................5-15
AvoidExcavationUsingUpperstructureand/orBoom
SwingPower.............................................................................5-15
AvoidDrivingBucketTeethintoGround.............................5-16
AvoidStrikingWithBucket .......................................................5-16
BoomCylindermayHitBlade..................................................5-17
AvoidHittingBladeWithBucket.............................................5-18
AvoidCollidingBladeAgainstRocks.....................................5-18
AvoidCollidingBoomCylinderWithTrack..........................5-18
PrecautionsforInstallingWideBucketorSpecialType
Bucket .........................................................................................5-18
UseCorrectTrackShoe...............................................................5-19
UsingRubberCrawler................................................................. 5-20
AvoidotherthanSpecifiedMachineOperations .............5-22
ShackleBracketUsage................................................................ 5-23
EmergencyBoomLoweringProcedure ...............................5-24
ReleasingHoseRuptureValve(MachineEquipped
withHoseRuptureValve)(Optional)..........................5-25
PrecautionsforAfterOperations............................................5-27
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
Layout..................................................................................................7-3
MaintenanceGuideTable.............................................................7-4
PreparationsforInspectionandMaintenance .....................7-7
Access Covers....................................................................................7-8
MaintenanceGuide .....................................................................7-11
PeriodicReplacementofParts.................................................7-15
KindofOils......................................................................................7-16
RecommendedEngineOil...................................................7-16

CONTENTS
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
CheckWaterSeparator ........................................................7-54
BleedAirfromFuelSystem .................................................7-54
DrainFuelTankSump............................................................7-55
ReplaceFuelMainFilterElement......................................7-56
ReplaceFuelPre-FilterElement(Optional)....................7-57
CheckFuelHoses ....................................................................7-59
F. Air Cleaner...................................................................................7-60
CleanAirCleanerOuterElement ......................................7-60
ReplaceAirCleanerOuterandInnerElements............7-60
ReplaceAirCleanerInnerElement(Optional)..............7-60
G.CoolingSystem ........................................................................7-62
CheckCoolantLevel ..............................................................7-63
CheckandAdjustFanBeltTension..................................7-64
Change Coolant.......................................................................7-67
CleanRadiator/OilCoolerCore.......................................... 7-69
Clean Air Conditioner Condenser ....................................7-70
CleanAirConditionerCondenserFrontScreen........... 7-70
H.ElectricalSystem......................................................................7-71
Batteries .....................................................................................7-71
CheckElectrolyteSpecificGravity ....................................7-74
ReplacingFuses....................................................................... 7-75
I. Miscellaneous............................................................................. 7-76
CheckandReplaceBucketTeeth ......................................7-76
ChangeBucket.........................................................................7-78
AdjustTrackSag(RubberCrawler)andCheckfor
Damage................................................................................7-79
CheckRubberTrackforDamage.......................................7-79
ReplaceRubberCrawler......................................................7-81
RemovingRubberCrawler ..................................................7-81
InstallingRubberCrawler ....................................................7-82
CheckTrackSag(SteelCrawler)(Optional)....................7-83
ConvertingtheTrack .............................................................7-85
CheckandReplaceSeatBelt...............................................7-86
CheckAirConditioner(Cabequippedmachine) ........7-87
CleanandReplaceHeater/AirConditionerFilter...... 7-90
Clean Circulating Air Filter...................................................7-90
ReplaceCirculatingAirFilter...............................................7-90
Clean Fresh Air Filter..............................................................7-92
ReplaceFreshAirFilter..........................................................7-92
Clean Fresh Air Filter..............................................................7-93
ReplaceFreshAirFilter..........................................................7-93
Clean Cab Floor........................................................................7-94
Check,CleanandFunctionCheckofInjection
Nozzle ...................................................................................7-95
InspectandAdjustValveClearance................................7-95
CheckandAdjustInjectionTiming .................................7-95
MeasureEngineCompressionPressure.........................7-95
CheckStarterandAlternator..............................................7-95
CheckCrankcaseBreather..................................................7-95
CheckRadiatorCap...............................................................7-95
TighteningandRetighteningTorqueofBoltsand
Nuts ........................................................................................7-96
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
BucketTypesandApplicationsZX33U-5A..........................12-4
Std.Specification..........................................................................12-5
WorkingRanges............................................................................12-6
ShoeTypesandApplications................................................... 12-7
BucketTypesandApplicationsZX38U-5A..........................12-8
Std.Specification..........................................................................12-9
WorkingRanges..........................................................................12-10
ShoeTypesandApplications.................................................12-11
BucketTypesandApplicationsZX48U-5A........................12-12
Std.Specification........................................................................12-13
WorkingRanges..........................................................................12-14
ShoeTypesandApplications.................................................12-15
BucketTypesandApplicationsZX55U-5A........................12-16
Std.Specification........................................................................12-17
WorkingRanges..........................................................................12-18
ShoeTypesandApplications.................................................12-19
BucketTypesandApplicationsZX65USB-5A...................12-20

CONTENTS
OPTIONAL ATTACHMENT .......................................................13-1
HydraulicBreaker,HydraulicCrusherandQuick
Coupler....................................................................................... 13-1
Attachment.....................................................................................13-2
PipingforBreakerandCrusher(Optional)........................13-3
AttachmentPedal(HydraulicBreaker)(Optional)............13-4
PrecautionsforBreakerOperation......................................... 13-5
AttachmentPedal(HydraulicCrusher)(Optional)............13-9
PrecautionsforCrusherOperation ......................................13-10
AUXFunctionLeverforExtraPiping(Optional)..............13-13
AuxiliaryFlowRateControl(Optional)...............................13-14
ControlLever(H-pattern:HITACHIExcavatorPattern)..13-15
ControlLever(SAE-backhoePattern)..................................13-16
FuelFeedDevice(Optional)(ZX48U-5A,55U-5A,
65USB-5A)................................................................................13-17
NumericKeypadLock(Optional)........................................13-18
Additional Counterweight ....................................................13-25
Cab Tilting Mechanism.............................................................13-26
Maintenance...........................................................................13-33
CheckTiltMechanismFulcrumBoltsandWorking
ScrewLockNut...............................................................13-33
Greasing ...................................................................................13-34
INDEX............................................................................................... 14-1

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IDENTIFICATIONNUMBER:
Product Identification Number
PRODUCTIDENTIFICATIONNUMBER:
NOTE:
*HCMADC00X00050002*
PRODUCTIDENTIFICATION
NUMBER(PIN)
Markstoindicatethe
startandendofthePIN
MADB-00-002
MADB-00-003
MADB-00-002
ZX33U-5A,38U-5A
ZX48U-5A,55U-5A,65USB-5A

MACHINE NUMBERS
2
Engine
TYPE:
MFG.NO.:
Travel Motor
TYPE:
MFG.NO.:
MADB-00-020
MADC-00-010
M1M0-00-004

MACHINE NUMBERS
3
Swing Motor
TYPE:
MFG.NO.:
ZX65USB-5A
ZX33U-5A,38U-5A,48U-5A,55U-5A
MADB-00-005
MADC-00-001

MACHINE NUMBERS
4
Hydraulic Pump
TYPE:
MFG.NO.:
MADB-00-006
ZX48U-5A,55U-5A
ZX33U-5A,38U-5A
MADB-00-021
ZX65USB-5A MADC-00-002

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.
NOTE:indicatesanadditionalexplanationforan
element of information.
S-1
SAFETY
SA-688
SA-1223

Follow Safety Instructions
Carefully read and follow all safety signs on the machine
and all safety messages in this manual.
 Safetysignsshouldbeinstalled,maintainedandreplaced
when necessary.
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).
Learn how to operate the machine and its controls correctly
and safely.
Allow only trained, qualified, authorized personnel to
operate 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.
 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
hazardous situation you may encounter. If you have any
questions,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to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
fires and accidents.
Keep emergency numbers for doctors, ambulance
service, hospital, 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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
 Inspectyourmachinecarefullyeachdayorshiftbywalking
around it before you start it to avoid personal injury.
 Inthewalk-aroundinspectionbesuretocoverallpoints
describedinthe"InspectMachineDailyBeforeStarting"
section in the operator’s manual.
SA-434
SAFETY
S-4
SA-435

General Precautions for Cab
 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objects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.When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. Also get on and off
from the position of the crawler that can secure your feet
space enough.
 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.
Adjust the Operator's Seat
A poorly adjusted seat for either the operator or for the
workathandmayquicklyfatiguetheoperatorleadingto
misoperations.
The seat should be adjusted whenever changing the
operator for the machine.
The operator should be able to fully depress the pedals
andtocorrectlyoperatethecontrolleverswithhisback
againsttheseatback.
 Ifnot,movetheseatforwardorbackward,andcheck
again.
Adjust the rear view mirror position so that the best rear
visibility is obtained from the operator’s seat. If the mirror
isbroken,immediatelyreplaceitwithanewone.
SAFETY
S-6
SA-439
SA-378

Ensure Safety Before Rising from or Leaving
Operator’s Seat
 Beforerisingfromtheoperator’sseattoopen/closeeither
side window or to adjust the seat position, be sure to first
lower the front attachment to the ground and then move
thepilotcontrolshut-offlevertotheLOCKposition.Failure
todosomayallowthemachinetounexpectedlymove
when a body part unintentionally comes in contact with a
control lever, possibly resulting in serious personal injury or
death.
 Beforeleavingthemachine,besuretofirstlowerthefront
attachment to the ground and then move the pilot control
shut-offlevertotheLOCKposition.TurnthekeyswitchOFF
to stop the engine.
 Beforeleavingthemachine,closeallwindows,doors,and
accesscoversandlockthemup.
Fasten Your Seat Belt
If the machine should overturn, the operator may become
injuredand/orthrownfromthecab.Additionallythe
operator may be crushed by the overturning machine,
resulting in serious injury or death.
 Priortooperatingthemachine,thoroughlyexamine
webbing,buckleandattachinghardware.Ifanyitemis
damaged or worn, replace the seat belt or component
before operating the machine.
 Besuretoremainseatedwiththeseatbeltsecurely
fastened at all times when the machine is in operation to
minimize the chance of injury from an accident.
 Werecommendthattheseatbeltbereplacedeverythree
years regardless of its apparent condition.
SA-237
SAFETY
S-7

Move and Operate Machine Safely
 Bystanderscanberunover.
 Takeextracarenottorunoverbystanders.Confirmthe
location of bystanders before moving, swinging, or
operating the machine.
 Alwayskeepthetravelalarmandhorninworking
condition (if equipped). It warns people when the
machine starts to move.
Use a signal person when moving, swinging, or operating
the machine in congested areas. Coordinate hand signals
before starting the machine.
 Useappropriateillumination.Checkthatalllightsare
operable before operating the machine. If any faulty
illumination is present, immediately repair it.
 Ensurethecabdoor,windows,doorsandcoversare
securelylocked.
 Checkthemirrorsforproblems.
If there is, replace the problem part(s) or clean the mirror.
Operate Only from Operator's Seat
Inappropriate engine starting procedures may cause the
machine to runaway, possibly resulting in serious injury or
death.
 Starttheengineonlywhenseatedintheoperator'sseat.
 NEVERstarttheenginewhilestandingonthetrackoron
ground.
 Donotstartenginebyshortingacrossstarterterminals.
 Beforestartingtheengine,confirmthatallcontrollevers
are in neutral.
 Beforestartingtheengine,confirmthesafetyaroundthe
machine and sound the horn to alert bystanders.
SA-444
SAFETY
S-8
SA-1291