Hitachi ZAXIS 35U-5N User Manual

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

Hitachi ZAXIS 35U-5N Specifications

General

Brand	Hitachi
Model	ZAXIS 35U-5N
Category	Excavators
Language	English