Case 590ST - Page 210

6-WORKINGOPERATIONS
Tonishthefarwallonastraight-walledexcavationcrowd
outthebucketwhileforcingthebucketdowntheexcava-
tionfromtheboom.
Tonishtherearwallcrowdinthebucket,whileliftingwith
theboom,keepingtheedgesofthebuckethorizontal.
LEEN11T0188AA_110
Whennishingstraightwallsinsandysoil,positionaplat-
formunderthereartiresandstabilizerstodistributethe
loadoveralargerareaandreducethepossibilityofa
cave-in.
Theplatformwillalsoreducethepossibilityofthemachine
creepingrearwardsifharddiggingisencountered.
NOTICE:Donotbackllatrenchusingtheswingdevice
toswingthebucketsideways.Doingsocandamagethe
dipstick,boom,swingcylindersormainframe.
LEEN11T0189AA11
Tobackllatrench,liftthebucketoverthespoilpileand
thencrowdinthedipperandlifttheboom.
Pullboththecrowdandboomleverssimultaneouslyfor
smoothevenbacklling.
LEEN11T0190AA12
LEEN11T0191AA13
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