START-UPAxioscope 5/7/Vario Mounting standard components ZEISS03/2018 430035-7344-001 51(4) Removing and mounting the additionalsleevesBoth coaxial knurled knobs for the stages areequipped with additional sleeves for an even moresensitive adjustment of the specimen position.These sleeves can be removed in those cases whenit is important to shift the specimen more quickly.• Loosen both clamping screws (349HFig. 3-14/4) onthe lower additional sleeve (350HFig. 3-14/3) andremove them by pulling them down. Thenloosen both clamping screws (351HFig. 3-14/2) onthe upper additional sleeves (352HFig. 3-14/1) andremove them by pulling them down as well.• Re-mount the additional sleeves on the coaxialknurled knobs by following the above steps inreverse order. Tighten the clamping screwswhen you are done.(5) Adjusting the friction (smoothness of operation) on both coaxial knurled knobs of theergonomic drivesThe smoothness of ergonomic operation is factory pre-set to a medium level. The operator can changethe friction as follows:a) How to adjust the X-direction• Remove the additional sleeves (353HFig. 3-14/1 and 3) from the coaxial knurled knobs by loosening theclamping screws.• Shift the X-coaxial knurled knob (354HFig. 3-14/5) downward and the Y-coaxial knurled knob (355HFig. 3-14/7)upward.• Hold the X-coaxial knurled knob (356HFig. 3-14/5) and turn the light-colored knurled ring above it(357HFig. 3-14/6) to the right (increased smoothness) or left (decreased smoothness) until you reach thedesired level.b) How to adjust the Y-direction• Hold the Y-coaxial knurled knob (358HFig. 3-14/7) and turn the light-colored knurled sleeve above it(359HFig. 3-14/8) to the right (increased smoothness) or the left (decreased smoothness) until you reach thedesired level.• Replace the additional sleeves and tighten the clamping screws.NOTEYou can increase the service life of the stage by cleaning the specimen holder regularly andavoiding particulates from the mechanical guide system of the X-motion.Fig. 3-14 Adjusting ergonometric drive