Operator's Manual

Maintenance
Note:Determinetheleftandrightsidesofthemachinefromthenormaloperatingposition.
RecommendedMaintenanceSchedule(s)
MaintenanceService
Interval
MaintenanceProcedure
Aftertherst8hours
•Changetheengineoil.
Aftertherst50hours
•Checkandadjustthetracktension.
Beforeeachuseordaily
•Checktheengineoillevel.
•Greasethemachine.(Greaseimmediatelyaftereverywashing.)
•Checktheengineoillevel.
•Checktheconditionofandcleanthetracks.
•Checktheconditionofthediggingteethandreplaceanythatarewornordamaged.
•Removedebrisfromthemachine.
•Checkforloosefasteners.
Every25hours
•Checkthehydraulicuidlevel.
•Cleanthefoamaircleanerelement.(Models22970and22971)
•Checkthebatteryelectrolytelevel.
•Checkthediggingchainforexcessivewearandpropertension.
Every40hours
•Greasethetrencherhousing.
Every50hours
•Checkthepaperaircleanerelement.(Models22970and22971)
Every100hours
•Changetheengineoil.
•Checkthesparkplugs.
•Checkandadjustthetracktension.
•Checkthehydrauliclinesforleaks,loosettings,kinkedlines,loosemounting
supports,wear,weather,andchemicaldeteriorationandrepairifnecessary.
Every200hours
•Replacethepaperaircleanerelement.(Models22970and22971)
•Changetheoillter.
•Replacethefuellter.
•Replacethehydrauliclter.
Every250hours
•Replacetheprimaryairlterandcheckthecondtionofthesafetylter(Model22974)
•Checkandgreasetheroadwheels.
Every400hours
•Changethehydraulicuid.
Every1,500hours
•Replaceallmovinghydraulichoses.
Yearlyorbeforestorage
•Checkandadjustthetracktension.
•Checkandadjustthechaintension.
•Touchupchippedpaint
Important:Refertoyour Engine Operator’ s Man ual foradditionalmaintenanceprocedures.
Ifyouleavethekeyintheignitionswitch,someonecouldaccidentlystarttheengineandseriously
injureyouorotherbystanders.
Removethekeyfromtheignitionanddisconnectthewirefromthesparkplugbeforeyoudoany
maintenance.Setthewireasidesothatitdoesnotaccidentallycontactthesparkplug.
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