液压挖掘机yw5572Word格式.docx

液压挖掘机yw5572Word格式.docx

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Inspectthedamageandloosenessofbucketteeth

1

Replacebucket

Whenneed

Adjustthesystemofbucketrocker

Removetraveloperaterod

Inspectthedroopoftrack

2

Adjustthedroopoftrack

Inspectthetightermo-mentofboltsandnuts

—

★★★

NOTE:

★★★Onlyinthefirstinspectionneedstomaintain.

Checkwearandtear,flabofthebucketteeth——everyday

Ifthewearandtearofteethisovermuch,replacethem.

Iftheteethslop,tightenthebolts,andthetighteningtorque:

451N·

m　（46kgf·

m）.

1.Parkingthemachineonthelevelground.Lowerthebuckettoground,andsitonthegroundwiththebucketplanepart,insurethebucketwillnotrollwhenremovethepin.

2.Removethebucketpin,anddisjoinarmandbucket.Cleanthepinandbore.Wipepropergreasetothepinandbore.

3.Adjustarm,andreplacebucket.Insurethebucketwillnotroll.

4.Mountthepin.

5.Mountlockpinandouchtothepin.

6.Adjustthejointclearanceofbucketpin.Refertothemethodofadjustbucketjointclearance.

7.Addgreasetothepin.

8.Starttheengineandrunatspeedof1200rpm,operatingbucketslowlyinthetwodirections,andcheckthebucketturninghaswhetherornotholdback.Correcttheproblemofholdback.

Adjustthelinkerofbucket

Themachinehasabucketadjustsystemtoremovelinkedshake.Whenlinkedshakeincrease,removeorfitonthetabasfollows:

1.Parkingthemachineonlevelground.Lowerthebuckettothegroundwiththeplanedownward,sothatthebucketwillnotroll.

2.Runtheengineatspeedof1200rpm.Turnthebucketwithcounter-clockwiseslowlytillthetopofthebucketleftflangecontactthearm.

3.Stopengine,andPutthegatelocklevertolocketplace.

4.Tothebestofyourabilitiesfitontabstotheclearance.

Removetravellever

Ifwish,canremovetravellever.

1.Parkingthemachineonthelevelground.

2.Lowerthebuckettotheground.

3.Reducetheenginespeedtolowidlespeed.

4.Turnthekeyinthestartertothe“OFF”positionandpulloutthekey.

5.Putthegatelocklevertothe“OFF”position.

6.Removetheleverbolts,andtakeofflever.

7.Mountboltsandtightentothetorqueof49N.m（5kgf.m）.

Checkthesagoftrack——every50hours

NOTICE:

Checkthesagoftrackaftercleaningcompletelytheclayinthetrack.

Asthefigureshow,swingtheupperstructure90degreeandlowerthebuckettotheground,sothatliftthetrack.

Keeptheangleofboomandarmwithin90to110,andholdtheroundpartofbucketontheground.Placeblocksunderthetrackframetoholdupthemachine.

Swingthetrackbackwardtwowholecircles,andthenswingthetrackforwardtwocircles.

Inthemiddleoftrackframemeasurethedistance（Ａ）betweenthebottomoftrackframeandthebackplaneofthetrackplate.Thesagoftrackprescribeswithin315to350mm（12.4to13.8in.）.

Adjustthesagoftrack

Donotremovevalve，keepyourbodyandfacefarfromvalve，andpreventhighpressuregreaseshootinginjury.

Ifthelefttracksagisdifferfromtherightone,themachinewillleantothetravelingroute.

1.Cleantheareaofchainwheelorientedwheelandgreasenipple.

2.Totensionthetrack,firstlyloosenandremovetheoilplug,secondlymountthepartwithmachine04F3804（injectoiltube）totheplaceofplug,andthenconnectthegreasegun..Addgreasetillthesagwithinthecommendedlimit.Remounttheplug.

3.Toloosenthetrack,slowlywithcounter-clockwiseturnthevalve,whenvalveisloosened1to1.5circles,thegreasewillflowoutfromgreaseexport.Ifthegreasedoesnotflowoutfavorably,liftthetrackawayground,slowlyswingthetrack.

IMPORTANCE:

Ifaftercounter-clockwiseturningthevalve,thetrackisstillverytight,orafteraddinggrease,thetrackisstillveryloose,thisisexceptionalphenomena.Underthiscondition,donotdisassembletheregulatoroftrack,andimmediatelycontactmechanicalorthedealerappointedmaintenanceman.

Checkthetighteningtorqueofboltsandnuts——every250hours

Afterthefirst50hours,checkthetensionofboltsandnuts.Laterevery250hourscheckatime.Ifthereisanylooseness,tightentothetorqueshowedthat.Boltsandnutsshouldbereplacewiththesamequalityorhigherquality.

Usesthetorsionwrenchestochecktightenboltsandnuts.

1.Insurethethreadsarecleanlywhenmountingorreplacing.

2.Applylubricanttoboltsandnuts（forinstancezincisdissolvedintoaxislubricatingoil）,sothattheirfrictionalcoefficientsaresteady.

3.Iftheboltsofcounterweightarealreadyloose,contactyourdealerormaintenanceman.

Thoserequestedtighteningtorqueareshowedwithkgf·

m.F