Case 590ST - Backhoe Attachment Operation

6-WORKINGOPERATIONS
BACKHOEATTACHMENT
Backhoeattachment
WARNING
Avoidinjury!
Readandfollowtheinstructionsinthismanual.
Failuretocomplycouldresultindeathorseriousinjury.
W1212A
Thefollowinginstructionsdonotcoverallpossiblecondi-
tionsofuseofthebackhoeattachment.Theyonlyconsti-
tutebasicinformationtoenablethemachinetobeoper-
atedcorrectly.
NOTICE:Toachieveanoptimumbalancebetweenma-
chineperformanceandfueleconomy,operatethema-
chineat1600-1700RPM.
NOTE:Thersttimeitisoperated,maneuverthemachine
inaclearareaandatlowspeed.
Makesurethatnootherpersonisintheworkingrangeof
themachine.
Neverdignearorunderthestabilizers,sincethemachine
couldfallintotheexcavation.
Whenworkinginanareaofreducedvisibility,forexample
nexttoabuilding,placeasafetybarrierandsignpanels
topreventanyonecomingnearthemachine.
Thebackhoeattachmentwilldigmorequicklyifthework
cycleisshortanduninterrupted.
Organizeyourworksitesoastoobtainasmoothwork
cycle.
Ifyoutrytousethebackhoebucketfordiggingtoowide
atrench,youmaycauseastallsituation(wherethedip-
percontrolleveristiltedtowardstherearbutnothinghap-
pens).
Thehydraulicsystemmainreliefvalvemakesanoise
whenahydraulicstalloccurs.
Thisoverloadcausestheworkcycletobeprolongedand
itincreasesthehydraulicuidtemperature.
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