START-UPCarl Zeiss Installing standard components Axio Examiner28 M60-2-0003 e 05/20123.1.4 Inserting eyepieces or an auxiliarymicroscope• Remove both dust caps (Figure 3-4/1 and 4)from the binocular tube.• Take both eyepieces (Figure 3-4/2) out of theircontainers, and insert them into the binoculartube until they reach the stop.• The auxiliary microscope (Figure 3-4/3) may beinserted into one of the binocular socketsinstead of an eyepiece, and it is used forobserving aperture stops, phase stops and dark-field stops, or for centering phase stops anddark-field stops. The adjustable eyepiece lensmay be used for focusing these stops, and thesetting may be defined by tightening aclamping screw.(1) Inserting an eyepiece reticuleEyepieces PL 10x/23 Br. foc. are intended for usetogether with eyepiece reticules.The slight image displacement caused by theadditional length of the glass path is taken intoaccount on the diopter scale by the fact that thezero position is not indicated by the white dot(Figure 3-5/W) but rather by the red dot(Figure 3-5/R).To allow easy replacement, the manufacturer hasbonded the eyepiece reticules (Figure 3-5/3) intoscrew-in stop parts (Figure 3-5/4). Complete stopparts with glued reticules are available directlyfrom Zeiss.To exchange a stop part, proceed as follows:• Unscrew the existing stop part (Figure 3-5/4)with the eyepiece reticule (Figure 3-5/3) fromthe eyepiece. Screw in the stop part with theeyepiece reticule.Whenever you insert an eyepiece reticuleinto an unscrewed stop part, make certainthat the lettering inside the eyepiece may beread true to side when it is screwed in again.Figure 3-4 Inserting eyepiecesFigure 3-5 Inserting an eyepiece reticule