6-MAINTENANCE
4.Placeareceptacleofasuitablecapacityunderthe
reservoirdrainplug,removethereservoirdrainplug
andallowtheremainderoftheuidtoowout.
5.Changethesuctionlterandthereturnlter.See
"Cleaningandreplacementofthesuctionlter"and
"Replacingthereturnlter".
6.Installthereservoirdrainplug.
7.Fillthereservoirwithnewhydraulicuid.See"Filling
thereservoir".
8.Replacethecoverplatesealifrequiredandinstallthe
coverplateonthereservoir.
ATTENTION:Beforeyoustarttheengine,itisveryimpor-
tantthatyoubleedairfromallthehydrauliccomponents.
See"Bleedingairfromthehydrauliccomponents".
9.Startandruntheenginewithnoloadforapproxi-
matelyveminutes.
10.Moveeachcontrolseveraltimestoremoveanyairin
thesystem.
11.Swingtheupperstructureevenlylefttorighttwocom-
pleteturnsormore.
12.Placethemachineinpositionandthenstoptheen-
gine.
13.Checktheoillevelinthehydraulicreservoirandadd
oilasrequiredandcheckthattherearenoairbubbles
inthehydraulicreservoir.
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