CASE CONSTRUCTION CX145D SR - Page 120

3-CONTROLSANDINSTRUMENTS
Cameraguidelines
Guidelinescanbesetuponthecameraviewsinorderto
supportaprimarycheckoftheareaaroundthemachine.
(1)Guidelineindicatingadistanceofabout1m(39.37in)
fromtherearofthemachine.
(2)Guidelineindicatingadistanceofabout2m(78.74in)
fromtherearofthemachine.
(3)Guidelineindicatingadistanceofabout3m
(118.11in)fromtherearofthemachine.
(4)Guidelineindicatingadistanceofabout1m(39.37in)
fromtheright-sideofthemachine.
(5)Guidelineindicatingadistanceofabout2m(78.74in)
fromtheright-sideofthemachine.
(6)Guidelineindicatingadistanceofabout3m
(118.11in)fromtheright-sideofthemachine.
SMIL16CEX1248AA4
Cautionsfortherearview
Adistanceguidelinetargetsaplanarobject(e.g.the
ground).Therefore,ifathree-dimensionalobjectwithan
overhangisapproaching,inparticularatlowdistance,the
distanceoftheoverhangisnotdisplayedproperly.
Thepictureprovidesanexample.Themachinegetsrear-
ward,andapproachesanobjectatadistance(L)ofabout
1m(3.3ft):onthedisplay,theoverhang(C)oftheobject
appearsalignedtotheposition(B)ontheground.Actu-
ally,theposition(B)onthegroundisbeyondtheoverhang
(C)oftheobject:theoverhang(C)isratheralignedtothe
position(A)ontheground.Therefore,thereisariskof
collisionbetweenthemachineandtheobjectifthema-
chineisbackedreferringtotheposition(B).
SMIL17CEX3247AA5
3-68