Bobbin case problem ?

am i correct if i say this is a top loader machine/bobbincase? there is a piece at lefthand rear at bobbin case that need to have a .5mm gap between case and this lock also right hand front same spring loaded stop that only have a ,3mm gap, if this is set correct case is not suppose to jump out.also put drop off oil on bobbincaae bottom where it move in hook drive

johan
December 2012