Case CX490D - Page 336

9-ACCESSORIES
9.Pressthefrontsideofthequickcouplerswitch(1)to
setthelockingstatusofthequickcouplingsystem.
Theaudiblealarmdevicestopssounding.
SMIL15CEXY501AA7
10.Maintainthehydraulicpressureinthebucketcylinder
forapproximately5–10stoallowthelatchinghook
toclose.
11.Conrmthattheattachmentpiniscorrectlyengaged
inthelatchinghook.
NOTE:thelatchinghookhasadifferentcolortoeasethe
visualconrmationoftheengagementofthepin.
NOTICE:Ifvisualconrmationisnotpossiblefromthe
operator'sseat,getdownfromthemachineandmake
surethattheattachmentpiniscorrectlyengagedinthe
latchinghook.
SMIL13CEX2702AB8
12.Operatethebucketcontroltoretractthecylinderrod
andallowthesafetydevicetoengage.
13.T oensurethatthebucket/attachmentpinsarese-
curelyheldbythequickcoupler,applyforcetothe
bucket/attachmentbypressingitagainsttheground.
NOTE:Thisoperationiscommonlyknownas“Bump
Test”or“Groundtest”.
NOTICE:Ifthequickcouplerisusedinconjunction
withanhydraulicbreaker,donotapplyforcewiththe
chisel.
SMIL13CEX2703AB9
9-30